| Form N-CSR Cover | 12 Months Ended |
| Jun. 30, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | SPDR SERIES TRUST |
| Entity Central Index Key | 0001064642 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Jun. 30, 2024 |
| Shareholder Report | 1 Months Ended | 12 Months Ended | 26 Months Ended | 39 Months Ended | 45 Months Ended | 100 Months Ended | 102 Months Ended | 103 Months Ended | 111 Months Ended |
| Jun. 30, 2024 USD ($) Holding | Jun. 30, 2024 USD ($) Holding | Jun. 30, 2024 USD ($) Holding | Jun. 30, 2024 USD ($) Holding | Jun. 30, 2024 USD ($) Holding | Jun. 30, 2024 USD ($) Holding | Jun. 30, 2024 USD ($) Holding | Jun. 30, 2024 USD ($) Holding | Jun. 30, 2024 USD ($) Holding | |
| Shareholder Report [Line Items] | |||||||||
| Document Type | N-CSR | ||||||||
| Amendment Flag | false | ||||||||
| Registrant Name | SPDR SERIES TRUST | ||||||||
| Entity Central Index Key | 0001064642 | ||||||||
| Entity Investment Company Type | N-1A | ||||||||
| Document Period End Date | Jun. 30, 2024 | ||||||||
| C000162693 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR S&P 500 Fossil Fuel Reserves Free ETF | ||||||||
| Trading Symbol | SPYX | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR S&P 500 Fossil Fuel Reserves Free ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C18"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR S&P 500 Fossil Fuel Reserves Free ETF $22 0.20% | ||||||||
| Expenses Paid, Amount | $ 22 | ||||||||
| Expense Ratio, Percent | 0.20% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? The reporting period’s market environment was largely driven by news about inflation, economic growth and the impact either would have on the U.S. Federal Reserve (''the Fed'') and other Central Banks with regard to interest rate decisions. Alongside this macro story was the prospect of a burgeoning Artificial Intelligence boom, driving up the values of A.I.-related tech and semiconductor companies. And markets continued to be dominated by the so-called "Magnificent Seven", consisting of Alphabet Inc., Amazon.com Inc., Apple Inc., Meta Platforms Inc., Microsoft Corp., NVIDIA Corp. and Tesla Inc.. Compared with the S&P 500, which returned 24.56% during the reporting period, the Fund slightly outperformed. Stocks from the Energy sector underperformed during the reporting period, and because the Fund excluded a significant portion of securities in the Energy sector, the net result for the Fund was slight relative outperformance to the broader market. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C23"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | SPYX S&P 500 Index S&P 500 Fossil Fuel Free Index 11/30/15 $10,000 $10,000 $10,000 11/30/15 $10,000 $10,000 $10,000 12/31/15 $9,868 $9,820 $9,872 1/31/16 $9,361 $9,292 $9,371 2/29/16 $9,345 $9,289 $9,362 3/31/16 $9,970 $9,936 $9,974 4/30/16 $9,958 $9,990 $9,963 5/31/16 $10,147 $10,165 $10,155 6/30/16 $10,149 $10,188 $10,160 7/31/16 $10,564 $10,576 $10,574 8/31/16 $10,578 $10,590 $10,592 9/30/16 $10,563 $10,599 $10,579 10/31/16 $10,388 $10,392 $10,398 11/30/16 $10,750 $10,801 $10,759 12/31/16 $10,957 $11,005 $10,971 1/31/17 $11,196 $11,226 $11,218 2/28/17 $11,678 $11,660 $11,701 3/31/17 $11,711 $11,667 $11,720 4/30/17 $11,865 $11,791 $11,862 5/31/17 $12,026 $11,942 $12,054 6/30/17 $12,111 $12,025 $12,138 7/31/17 $12,357 $12,263 $12,382 8/31/17 $12,416 $12,301 $12,449 9/30/17 $12,618 $12,563 $12,668 10/31/17 $12,937 $12,851 $12,972 11/30/17 $13,328 $13,250 $13,378 12/31/17 $13,475 $13,395 $13,514 1/31/18 $14,264 $14,119 $14,308 2/28/18 $13,763 $13,609 $13,830 3/31/18 $13,402 $13,297 $13,453 4/30/18 $13,399 $13,365 $13,458 5/31/18 $13,714 $13,706 $13,776 6/30/18 $13,763 $13,776 $13,827 7/31/18 $14,306 $14,251 $14,381 8/31/18 $14,815 $14,744 $14,900 9/30/18 $14,892 $14,810 $14,969 10/31/18 $13,892 $13,771 $13,940 11/30/18 $14,153 $14,045 $14,228 12/31/18 $12,889 $12,762 $12,950 1/31/19 $13,905 $13,856 $13,999 2/28/19 $14,353 $14,339 $14,439 3/31/19 $14,593 $14,591 $14,715 4/30/19 $15,229 $15,194 $15,348 5/31/19 $14,290 $14,233 $14,371 6/30/19 $15,280 $15,244 $15,387 7/31/19 $15,511 $15,476 $15,634 8/31/19 $15,286 $15,191 $15,417 9/30/19 $15,578 $15,456 $15,704 10/31/19 $15,947 $15,792 $16,077 11/30/19 $16,537 $16,394 $16,671 12/31/19 $17,001 $16,865 $17,156 1/31/20 $17,043 $16,882 $17,201 2/29/20 $15,685 $15,493 $15,812 3/31/20 $13,825 $13,579 $13,944 4/30/20 $15,519 $15,320 $15,685 5/31/20 $16,279 $16,050 $16,449 6/30/20 $16,611 $16,369 $16,785 7/31/20 $17,586 $17,292 $17,769 8/31/20 $18,875 $18,535 $19,076 9/30/20 $18,188 $17,830 $18,384 10/31/20 $17,733 $17,356 $17,900 11/30/20 $19,618 $19,256 $19,815 12/31/20 $20,348 $19,996 $20,572 1/31/21 $20,068 $19,795 $20,299 2/28/21 $20,607 $20,340 $20,856 3/31/21 $21,549 $21,231 $21,798 4/30/21 $22,732 $22,364 $22,990 5/31/21 $22,857 $22,520 $23,130 6/30/21 $23,371 $23,046 $23,654 7/31/21 $23,946 $23,594 $24,259 8/31/21 $24,700 $24,311 $25,021 9/30/21 $23,455 $23,180 $23,774 10/31/21 $25,074 $24,804 $25,420 11/30/21 $24,913 $24,633 $25,268 12/31/21 $26,059 $25,736 $26,413 1/31/22 $24,563 $24,405 $24,919 2/28/22 $23,766 $23,674 $24,106 3/31/22 $24,608 $24,553 $24,966 4/30/22 $22,415 $22,412 $22,733 5/31/22 $22,330 $22,453 $22,657 6/30/22 $20,563 $20,600 $20,856 7/31/22 $22,422 $22,499 $22,760 8/31/22 $21,451 $21,581 $21,777 9/30/22 $19,485 $19,594 $19,768 10/31/22 $20,930 $21,180 $21,243 11/30/22 $22,131 $22,364 $22,483 12/31/22 $20,838 $21,075 $21,165 1/31/23 $22,176 $22,400 $22,528 2/28/23 $21,671 $21,853 $22,026 3/31/23 $22,493 $22,655 $22,865 4/30/23 $22,818 $23,009 $23,191 5/31/23 $23,010 $23,109 $23,385 6/30/23 $24,519 $24,636 $24,941 7/31/23 $25,305 $25,427 $25,727 8/31/23 $24,865 $25,023 $25,289 9/30/23 $23,620 $23,830 $24,019 10/31/23 $23,171 $23,328 $23,570 11/30/23 $25,365 $25,459 $25,806 12/31/23 $26,546 $26,616 $27,003 1/31/24 $26,987 $27,063 $27,472 2/29/24 $28,406 $28,508 $28,937 3/31/24 $29,282 $29,425 $29,829 4/30/24 $28,053 $28,224 $28,567 5/31/24 $29,504 $29,625 $30,031 6/30/24 $30,581 $30,689 $31,163 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years Since Inception 11/30/15 SPYX 24.70% 14.91% 13.91% S&P 500 Index 24.56% 15.05% 13.95% S&P 500 Fossil Fuel Free Index 24.94% 15.16% 14.16% | ||||||||
| Performance Inception Date | Nov. 30, 2015 | ||||||||
| AssetsNet | $ 1,782,270,461 | $ 1,782,270,461 | $ 1,782,270,461 | $ 1,782,270,461 | $ 1,782,270,461 | $ 1,782,270,461 | $ 1,782,270,461 | $ 1,782,270,461 | $ 1,782,270,461 |
| Holdings Count | Holding | 492 | 492 | 492 | 492 | 492 | 492 | 492 | 492 | 492 |
| Advisory Fees Paid, Amount | $ 3,061,650 | ||||||||
| InvestmentCompanyPortfolioTurnover | 2% | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $1,782,270,461 # of Portfolio Holdings 492 Portfolio Turnover Rate 2% Total Advisory Fees Paid $3,061,650 | ||||||||
| Holdings [Text Block] | Top Ten Industry Industry % Value of Total Net Assets Semiconductors & Semiconductor Equipment 12.4% Software 11.1% Technology Hardware, Storage & Peripherals 7.2% Interactive Media & Services 6.9% Banks 4.1% Financial Services 4.0% Broadline Retail 4.0% Pharmaceuticals 3.9% Health Care Providers & Services 2.5% Health Care Equipment & Supplies 2.4% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets Microsoft Corp. 7.5% NVIDIA Corp. 6.8% Apple, Inc. 6.8% Alphabet, Inc. 4.4% Amazon.com, Inc. 4.0% Meta Platforms, Inc. 2.5% Berkshire Hathaway, Inc., B 1.7% Eli Lilly & Co. 1.6% Broadcom, Inc. 1.6% JPMorgan Chase & Co. 1.3% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000019028 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR Global Dow ETF | ||||||||
| Trading Symbol | DGT | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR Global Dow ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C43"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR Global Dow ETF $54 0.50% | ||||||||
| Expenses Paid, Amount | $ 54 | ||||||||
| Expense Ratio, Percent | 0.50% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? The reporting period’s market environment was largely driven by news about inflation, economic growth and the impact either would have on the Fed and other central banks with regard to interest rate decisions. Bank of Canada, European Central Bank and Swiss National Bank all moved towards loosening regimes and began cutting rates. Alongside this macro story was the prospect of a burgeoning artificial intelligence boom, driving up the values of A.I.-related tech and semiconductor companies. A.I.-related semiconductor stocks continued to surge, revealing the investor belief that A.I. represented an enormous secular growth opportunity that transcended concerns about the macroeconomy. These and the Magnificent Seven once again pulled the market up with them into the end of the reporting period, ultimately producing strong net gains for the year. The Fund used equity Index futures in order to equitize cash and accruals during the reporting period. The Fund’s use of futures helped the Fund track the Index. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C48"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | DGT S&P 500 Index The Global Dow 6/30/14 $10,000 $10,000 $10,000 7/31/14 $9,886 $9,838 $9,912 8/31/14 $10,071 $10,245 $10,087 9/30/14 $9,767 $10,065 $9,772 10/31/14 $9,803 $10,311 $9,758 11/30/14 $9,938 $10,581 $9,948 12/31/14 $9,664 $10,557 $9,688 1/31/15 $9,440 $10,267 $9,459 2/28/15 $10,056 $10,860 $10,020 3/31/15 $9,838 $10,725 $9,799 4/30/15 $10,137 $10,801 $10,133 5/31/15 $10,122 $10,942 $10,114 6/30/15 $9,916 $10,737 $9,863 7/31/15 $9,993 $10,944 $9,990 8/31/15 $9,288 $10,285 $9,265 9/30/15 $8,861 $10,003 $8,853 10/31/15 $9,613 $10,813 $9,626 11/30/15 $9,505 $10,849 $9,457 12/31/15 $9,259 $10,653 $9,248 1/31/16 $8,661 $10,080 $8,628 2/29/16 $8,572 $10,077 $8,566 3/31/16 $9,226 $10,780 $9,214 4/30/16 $9,457 $10,838 $9,483 5/31/16 $9,382 $11,027 $9,374 6/30/16 $9,318 $11,053 $9,290 7/31/16 $9,716 $11,474 $9,703 8/31/16 $9,863 $11,489 $9,853 9/30/16 $9,963 $11,498 $9,931 10/31/16 $9,886 $11,274 $9,878 11/30/16 $9,984 $11,718 $9,948 12/31/16 $10,239 $11,938 $10,264 1/31/17 $10,546 $12,178 $10,539 2/28/17 $10,815 $12,650 $10,820 3/31/17 $11,007 $12,657 $10,972 4/30/17 $11,180 $12,791 $11,143 5/31/17 $11,323 $12,955 $11,306 6/30/17 $11,428 $13,046 $11,374 7/31/17 $11,762 $13,304 $11,737 8/31/17 $11,753 $13,345 $11,726 9/30/17 $12,022 $13,630 $12,005 10/31/17 $12,265 $13,942 $12,233 11/30/17 $12,518 $14,374 $12,493 12/31/17 $12,818 $14,532 $12,792 1/31/18 $13,541 $15,317 $13,555 2/28/18 $12,939 $14,764 $12,971 3/31/18 $12,640 $14,426 $12,593 4/30/18 $12,763 $14,499 $12,778 5/31/18 $12,580 $14,869 $12,584 6/30/18 $12,524 $14,945 $12,511 7/31/18 $13,017 $15,461 $13,003 8/31/18 $12,977 $15,995 $12,973 9/30/18 $13,183 $16,067 $13,190 10/31/18 $12,227 $14,939 $12,238 11/30/18 $12,478 $15,237 $12,442 12/31/18 $11,601 $13,845 $11,602 1/31/19 $12,547 $15,032 $12,520 2/28/19 $12,772 $15,555 $12,772 3/31/19 $12,833 $15,829 $12,806 4/30/19 $13,271 $16,483 $13,240 5/31/19 $12,414 $15,441 $12,396 6/30/19 $13,244 $16,537 $13,247 7/31/19 $13,170 $16,789 $13,228 8/31/19 $12,793 $16,480 $12,767 9/30/19 $13,110 $16,767 $13,094 10/31/19 $13,387 $17,132 $13,367 11/30/19 $13,733 $17,785 $13,697 12/31/19 $14,177 $18,296 $14,149 1/31/20 $13,727 $18,315 $13,763 2/29/20 $12,726 $16,807 $12,631 3/31/20 $10,783 $14,731 $10,793 4/30/20 $11,658 $16,620 $11,671 5/31/20 $12,162 $17,411 $12,089 6/30/20 $12,491 $17,758 $12,431 7/31/20 $12,942 $18,759 $12,914 8/31/20 $13,730 $20,107 $13,692 9/30/20 $13,179 $19,343 $13,126 10/31/20 $12,874 $18,829 $12,807 11/30/20 $14,911 $20,890 $14,898 12/31/20 $15,526 $21,693 $15,530 1/31/21 $15,438 $21,474 $15,407 2/28/21 $16,461 $22,066 $16,385 3/31/21 $17,154 $23,033 $17,073 4/30/21 $17,646 $24,262 $17,595 5/31/21 $18,380 $24,431 $18,233 6/30/21 $18,117 $25,002 $18,034 7/31/21 $18,041 $25,596 $17,964 8/31/21 $18,395 $26,374 $18,371 9/30/21 $17,943 $25,147 $17,943 10/31/21 $18,612 $26,909 $18,575 11/30/21 $17,818 $26,723 $17,738 12/31/21 $18,887 $27,920 $18,842 1/31/22 $19,071 $26,475 $18,941 2/28/22 $18,480 $25,683 $18,482 3/31/22 $18,722 $26,636 $18,793 4/30/22 $17,450 $24,314 $17,521 5/31/22 $18,065 $24,358 $18,015 6/30/22 $16,296 $22,348 $16,224 7/31/22 $16,921 $24,408 $16,855 8/31/22 $16,407 $23,413 $16,434 9/30/22 $14,762 $21,256 $14,803 10/31/22 $16,076 $22,977 $16,055 11/30/22 $17,795 $24,261 $17,649 12/31/22 $17,346 $22,864 $17,345 1/31/23 $18,798 $24,300 $18,728 2/28/23 $18,278 $23,707 $18,270 3/31/23 $18,539 $24,578 $18,502 4/30/23 $18,940 $24,961 $18,878 5/31/23 $18,301 $25,070 $18,229 6/30/23 $19,647 $26,726 $19,571 7/31/23 $20,404 $27,585 $20,362 8/31/23 $19,790 $27,146 $19,766 9/30/23 $19,105 $25,852 $19,118 10/31/23 $18,594 $25,308 $18,503 11/30/23 $20,083 $27,619 $20,057 12/31/23 $20,988 $28,874 $21,004 1/31/24 $21,087 $29,359 $21,153 2/29/24 $21,818 $30,927 $21,796 3/31/24 $22,689 $31,922 $22,672 4/30/24 $22,098 $30,619 $22,134 5/31/24 $23,125 $32,138 $22,984 6/30/24 $22,931 $33,292 $22,868 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years DGT 16.80% 11.51% 8.62% S&P 500 Index 24.56% 15.05% 12.86% The Global Dow 16.84% 11.55% 8.62% | ||||||||
| AssetsNet | $ 208,044,962 | $ 208,044,962 | $ 208,044,962 | $ 208,044,962 | $ 208,044,962 | $ 208,044,962 | $ 208,044,962 | $ 208,044,962 | $ 208,044,962 |
| Holdings Count | Holding | 163 | 163 | 163 | 163 | 163 | 163 | 163 | 163 | 163 |
| Advisory Fees Paid, Amount | $ 892,725 | ||||||||
| InvestmentCompanyPortfolioTurnover | 12% | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $208,044,962 # of Portfolio Holdings 163 Portfolio Turnover Rate 12% Total Advisory Fees Paid $892,725 | ||||||||
| Holdings [Text Block] | Top Ten Industry Industry % Value of Total Net Assets Banks 14.3% Oil, Gas & Consumable Fuels 6.3% Pharmaceuticals 5.5% Semiconductors & Semiconductor Equipment 5.2% Aerospace & Defense 3.9% Insurance 3.5% Metals & Mining 3.0% Technology Hardware, Storage & Peripherals 2.7% Broadline Retail 2.6% IT Services 2.5% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets NVIDIA Corp. 1.6% QUALCOMM, Inc. 1.1% Broadcom, Inc. 1.1% General Electric Co. 1.0% Taiwan Semiconductor Manufacturing Co. Ltd. 1.0% Meta Platforms, Inc., A 1.0% UniCredit SpA 1.0% Howmet Aerospace, Inc. 0.9% Eli Lilly & Co. 0.9% Netflix, Inc. 0.9% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000019031 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR S&P Capital Markets ETF | ||||||||
| Trading Symbol | KCE | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR S&P Capital Markets ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C67"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR S&P Capital Markets ETF $41 0.35% | ||||||||
| Expenses Paid, Amount | $ 41 | ||||||||
| Expense Ratio, Percent | 0.35% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? U.S. Economic indicators from the U.S. remained relatively strong over the Q3 2023. While investors began the quarter with hopes that the rate hikes would soon end and cuts would begin, that probability ended by the end of the quarter. U.S. stocks rallied in Q4 2023, supported by prospects of rate cuts in 2024. U.S. equities rallied for a second straight quarter in Q1 2024. The biggest area of concern during the quarter revolved around sticky core services inflation even as the U.S. economy remained resilient. U.S. equity indices were mixed in Q2 2024, with a tough start to the quarter in April. The momentum changed in the middle of the month due to a strong jobs report, ending up positive in May and June. The Fed held the interest rates steady and struck a hawkish tone in June, maintaining the current policy rate and projecting only one rate cut in 2024. More focus on capital markets stocks continued around the goal to create Net Zero carbon projects. The capital markets have been able to offer carbon project developers an opportunity to receive funding they might not be able to get via other means. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C72"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | KCE S&P 500 Index S&P Capital Markets Select Industry Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $9,656 $9,838 $9,652 8/31/14 $10,073 $10,245 $10,076 9/30/14 $9,776 $10,065 $9,777 10/31/14 $9,992 $10,311 $9,995 11/30/14 $10,098 $10,581 $10,095 12/31/14 $10,365 $10,557 $10,365 1/31/15 $9,533 $10,267 $9,540 2/28/15 $10,262 $10,860 $10,273 3/31/15 $10,364 $10,725 $10,370 4/30/15 $10,308 $10,801 $10,322 5/31/15 $10,432 $10,942 $10,445 6/30/15 $10,499 $10,737 $10,503 7/31/15 $10,437 $10,944 $10,445 8/31/15 $9,321 $10,285 $9,329 9/30/15 $8,634 $10,003 $8,638 10/31/15 $9,265 $10,813 $9,272 11/30/15 $9,715 $10,849 $9,727 12/31/15 $9,076 $10,653 $9,089 1/31/16 $7,711 $10,080 $7,715 2/29/16 $7,535 $10,077 $7,538 3/31/16 $8,223 $10,780 $8,238 4/30/16 $8,415 $10,838 $8,429 5/31/16 $8,704 $11,027 $8,729 6/30/16 $7,687 $11,053 $7,698 7/31/16 $8,338 $11,474 $8,351 8/31/16 $8,761 $11,489 $8,780 9/30/16 $8,655 $11,498 $8,680 10/31/16 $8,372 $11,274 $8,396 11/30/16 $9,553 $11,718 $9,579 12/31/16 $9,654 $11,938 $9,681 1/31/17 $9,884 $12,178 $9,924 2/28/17 $10,260 $12,650 $10,303 3/31/17 $10,120 $12,657 $10,156 4/30/17 $10,146 $12,791 $10,184 5/31/17 $10,046 $12,955 $10,082 6/30/17 $10,699 $13,046 $10,739 7/31/17 $11,100 $13,304 $11,151 8/31/17 $10,795 $13,345 $10,858 9/30/17 $11,474 $13,630 $11,532 10/31/17 $11,672 $13,942 $11,734 11/30/17 $12,390 $14,374 $12,466 12/31/17 $12,693 $14,532 $12,765 1/31/18 $13,197 $15,317 $13,286 2/28/18 $13,036 $14,764 $13,129 3/31/18 $12,940 $14,426 $13,043 4/30/18 $13,004 $14,499 $13,099 5/31/18 $13,211 $14,869 $13,311 6/30/18 $12,872 $14,945 $12,988 7/31/18 $13,163 $15,461 $13,271 8/31/18 $13,045 $15,995 $13,164 9/30/18 $12,570 $16,067 $12,677 10/31/18 $11,628 $14,939 $11,736 11/30/18 $11,914 $15,237 $12,033 12/31/18 $10,761 $13,845 $10,871 1/31/19 $11,693 $15,032 $11,801 2/28/19 $12,343 $15,555 $12,454 3/31/19 $12,058 $15,829 $12,168 4/30/19 $13,000 $16,483 $13,132 5/31/19 $11,934 $15,441 $12,054 6/30/19 $12,634 $16,537 $12,764 7/31/19 $12,960 $16,789 $13,099 8/31/19 $12,273 $16,480 $12,409 9/30/19 $12,539 $16,767 $12,676 10/31/19 $12,772 $17,132 $12,918 11/30/19 $13,600 $17,785 $13,725 12/31/19 $13,686 $18,296 $13,821 1/31/20 $13,966 $18,315 $14,107 2/29/20 $12,853 $16,807 $12,965 3/31/20 $10,567 $14,731 $10,687 4/30/20 $12,059 $16,620 $12,194 5/31/20 $12,790 $17,411 $12,939 6/30/20 $13,128 $17,758 $13,288 7/31/20 $13,543 $18,759 $13,598 8/31/20 $14,093 $20,107 $14,120 9/30/20 $13,626 $19,343 $13,654 10/31/20 $14,228 $18,829 $14,255 11/30/20 $16,252 $20,890 $16,295 12/31/20 $17,864 $21,693 $17,927 1/31/21 $17,649 $21,474 $17,722 2/28/21 $19,084 $22,066 $19,169 3/31/21 $20,082 $23,033 $20,165 4/30/21 $21,379 $24,262 $21,469 5/31/21 $22,090 $24,431 $22,209 6/30/21 $22,494 $25,002 $22,624 7/31/21 $22,808 $25,596 $22,947 8/31/21 $23,809 $26,374 $23,961 9/30/21 $22,853 $25,147 $23,003 10/31/21 $25,596 $26,909 $25,771 11/30/21 $24,575 $26,723 $24,754 12/31/21 $25,027 $27,920 $25,217 1/31/22 $23,006 $26,475 $23,206 2/28/22 $22,259 $25,683 $22,444 3/31/22 $22,148 $26,636 $22,331 4/30/22 $19,164 $24,314 $19,335 5/31/22 $19,913 $24,358 $20,094 6/30/22 $17,815 $22,348 $17,972 7/31/22 $19,912 $24,408 $20,110 8/31/22 $19,525 $23,413 $19,712 9/30/22 $17,578 $21,256 $17,740 10/31/22 $19,502 $22,977 $19,697 11/30/22 $20,902 $24,261 $21,131 12/31/22 $19,475 $22,864 $19,681 1/31/23 $22,075 $24,300 $22,327 2/28/23 $21,747 $23,707 $22,005 3/31/23 $20,636 $24,578 $20,891 4/30/23 $20,302 $24,961 $20,547 5/31/23 $19,656 $25,070 $19,897 6/30/23 $21,171 $26,726 $21,437 7/31/23 $22,886 $27,585 $23,173 8/31/23 $22,422 $27,146 $22,708 9/30/23 $21,763 $25,852 $22,045 10/31/23 $20,588 $25,308 $20,868 11/30/23 $22,878 $27,619 $23,199 12/31/23 $25,727 $28,874 $26,102 1/31/24 $25,187 $29,359 $25,564 2/29/24 $26,716 $30,927 $27,135 3/31/24 $28,016 $31,922 $28,454 4/30/24 $26,947 $30,619 $27,340 5/31/24 $28,215 $32,138 $28,617 6/30/24 $28,097 $33,292 $28,502 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years KCE 32.64% 17.31% 10.87% S&P 500 Index 24.56% 15.05% 12.86% S&P Capital Markets Select Industry Index 32.96% 17.43% 11.04% | ||||||||
| AssetsNet | $ 416,185,853 | $ 416,185,853 | $ 416,185,853 | $ 416,185,853 | $ 416,185,853 | $ 416,185,853 | $ 416,185,853 | $ 416,185,853 | $ 416,185,853 |
| Holdings Count | Holding | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 |
| Advisory Fees Paid, Amount | $ 908,151 | ||||||||
| InvestmentCompanyPortfolioTurnover | 23% | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $416,185,853 # of Portfolio Holdings 65 Portfolio Turnover Rate 23% Total Advisory Fees Paid $908,151 | ||||||||
| Holdings [Text Block] | Top Industry Industry % Value of Total Net Assets Asset Management & Custody Banks 45.4% Investment Banking & Brokerage 32.6% Financial Exchanges & Data 21.9% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets Jefferies Financial Group, Inc. 1.9% Piper Sandler Cos. 1.9% Moelis & Co., A 1.8% StepStone Group, Inc., A 1.8% Stifel Financial Corp. 1.8% Raymond James Financial, Inc. 1.8% PJT Partners, Inc., A 1.8% Hamilton Lane, Inc., A 1.8% Evercore, Inc., A 1.8% Affiliated Managers Group, Inc. 1.8% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000019032 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR S&P Insurance ETF | ||||||||
| Trading Symbol | KIE | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR S&P Insurance ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C91"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR S&P Insurance ETF $39 0.35% | ||||||||
| Expenses Paid, Amount | $ 39 | ||||||||
| Expense Ratio, Percent | 0.35% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Performance of the Fund was driven by current market conditions. Insurance companies are benefiting from net premiums earned plus the high interest rate environment. Insurance companies typically invest premiums received and tend to earn higher rates of return when market interest rates are elevated. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C96"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | KIE S&P 500 Index S&P Insurance Select Industry Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $9,532 $9,838 $9,535 8/31/14 $10,115 $10,245 $10,124 9/30/14 $9,853 $10,065 $9,863 10/31/14 $10,256 $10,311 $10,270 11/30/14 $10,388 $10,581 $10,403 12/31/14 $10,508 $10,557 $10,526 1/31/15 $9,894 $10,267 $9,919 2/28/15 $10,505 $10,860 $10,535 3/31/15 $10,607 $10,725 $10,638 4/30/15 $10,573 $10,801 $10,607 5/31/15 $10,720 $10,942 $10,756 6/30/15 $10,802 $10,737 $10,843 7/31/15 $11,371 $10,944 $11,415 8/31/15 $10,857 $10,285 $10,904 9/30/15 $10,754 $10,003 $10,803 10/31/15 $11,339 $10,813 $11,396 11/30/15 $11,532 $10,849 $11,593 12/31/15 $11,133 $10,653 $11,198 1/31/16 $10,510 $10,080 $10,570 2/29/16 $10,420 $10,077 $10,484 3/31/16 $11,134 $10,780 $11,207 4/30/16 $11,230 $10,838 $11,310 5/31/16 $11,752 $11,027 $11,835 6/30/16 $11,491 $11,053 $11,576 7/31/16 $11,611 $11,474 $11,698 8/31/16 $12,090 $11,489 $12,190 9/30/16 $12,021 $11,498 $12,123 10/31/16 $12,050 $11,274 $12,154 11/30/16 $13,084 $11,718 $13,201 12/31/16 $13,517 $11,938 $13,643 1/31/17 $13,591 $12,178 $13,725 2/28/17 $14,235 $12,650 $14,378 3/31/17 $14,055 $12,657 $14,203 4/30/17 $14,142 $12,791 $14,292 5/31/17 $14,154 $12,955 $14,311 6/30/17 $14,467 $13,046 $14,628 7/31/17 $15,014 $13,304 $15,184 8/31/17 $14,509 $13,345 $14,680 9/30/17 $14,833 $13,630 $15,010 10/31/17 $15,175 $13,942 $15,359 11/30/17 $15,406 $14,374 $15,604 12/31/17 $15,257 $14,532 $15,455 1/31/18 $15,680 $15,317 $15,889 2/28/18 $15,123 $14,764 $15,333 3/31/18 $15,496 $14,426 $15,711 4/30/18 $15,419 $14,499 $15,634 5/31/18 $15,182 $14,869 $15,408 6/30/18 $14,943 $14,945 $15,166 7/31/18 $15,895 $15,461 $16,132 8/31/18 $16,058 $15,995 $16,319 9/30/18 $16,130 $16,067 $16,390 10/31/18 $15,106 $14,939 $15,349 11/30/18 $15,587 $15,237 $15,834 12/31/18 $14,349 $13,845 $14,596 1/31/19 $15,396 $15,032 $15,649 2/28/19 $16,023 $15,555 $16,295 3/31/19 $15,710 $15,829 $15,982 4/30/19 $16,889 $16,483 $17,191 5/31/19 $16,492 $15,441 $16,798 6/30/19 $17,351 $16,537 $17,679 7/31/19 $17,678 $16,789 $18,015 8/31/19 $17,193 $16,480 $17,531 9/30/19 $18,060 $16,767 $18,417 10/31/19 $17,635 $17,132 $17,977 11/30/19 $18,189 $17,785 $18,548 12/31/19 $18,252 $18,296 $18,631 1/31/20 $18,260 $18,315 $18,647 2/29/20 $16,362 $16,807 $16,700 3/31/20 $12,924 $14,731 $13,202 4/30/20 $13,518 $16,620 $13,802 5/31/20 $14,041 $17,411 $14,350 6/30/20 $14,229 $17,758 $14,555 7/31/20 $14,844 $18,759 $15,178 8/31/20 $15,343 $20,107 $15,693 9/30/20 $14,661 $19,343 $15,002 10/31/20 $14,854 $18,829 $15,204 11/30/20 $17,013 $20,890 $17,416 12/31/20 $17,692 $21,693 $18,111 1/31/21 $16,934 $21,474 $17,355 2/28/21 $18,405 $22,066 $18,865 3/31/21 $19,370 $23,033 $19,857 4/30/21 $20,787 $24,262 $21,307 5/31/21 $21,046 $24,431 $21,595 6/30/21 $20,496 $25,002 $21,044 7/31/21 $20,267 $25,596 $20,803 8/31/21 $21,075 $26,374 $21,640 9/30/21 $20,181 $25,147 $20,729 10/31/21 $21,541 $26,909 $22,132 11/30/21 $20,435 $26,723 $20,995 12/31/21 $21,686 $27,920 $22,300 1/31/22 $21,500 $26,475 $22,119 2/28/22 $21,484 $25,683 $22,101 3/31/22 $22,651 $26,636 $23,312 4/30/22 $20,991 $24,314 $21,611 5/31/22 $21,619 $24,358 $22,260 6/30/22 $20,511 $22,348 $21,125 7/31/22 $20,639 $24,408 $21,271 8/31/22 $20,617 $23,413 $21,257 9/30/22 $19,675 $21,256 $20,267 10/31/22 $22,508 $22,977 $23,209 11/30/22 $23,194 $24,261 $23,939 12/31/22 $22,431 $22,864 $23,153 1/31/23 $23,801 $24,300 $24,573 2/28/23 $23,719 $23,707 $24,495 3/31/23 $21,653 $24,578 $22,369 4/30/23 $22,233 $24,961 $22,971 5/31/23 $20,980 $25,070 $21,679 6/30/23 $22,553 $26,726 $23,318 7/31/23 $23,458 $27,585 $24,255 8/31/23 $23,466 $27,146 $24,278 9/30/23 $23,560 $25,852 $24,376 10/31/23 $23,651 $25,308 $24,481 11/30/23 $25,061 $27,619 $25,951 12/31/23 $25,161 $28,874 $26,056 1/31/24 $26,450 $29,359 $27,406 2/29/24 $27,675 $30,927 $28,704 3/31/24 $29,104 $31,922 $30,193 4/30/24 $27,143 $30,619 $28,140 5/31/24 $28,618 $32,138 $29,685 6/30/24 $27,969 $33,292 $29,029 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years KIE 24.03% 10.02% 10.84% S&P 500 Index 24.56% 15.05% 12.86% S&P Insurance Select Industry Index 24.51% 10.43% 11.25% | ||||||||
| AssetsNet | $ 723,337,510 | $ 723,337,510 | $ 723,337,510 | $ 723,337,510 | $ 723,337,510 | $ 723,337,510 | $ 723,337,510 | $ 723,337,510 | $ 723,337,510 |
| Holdings Count | Holding | 51 | 51 | 51 | 51 | 51 | 51 | 51 | 51 | 51 |
| Advisory Fees Paid, Amount | $ 2,317,080 | ||||||||
| InvestmentCompanyPortfolioTurnover | 23% | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $723,337,510 # of Portfolio Holdings 51 Portfolio Turnover Rate 23% Total Advisory Fees Paid $2,317,080 | ||||||||
| Holdings [Text Block] | Top Industry Industry % Value of Total Net Assets Property & Casualty Insurance 49.1% Life & Health Insurance 24.8% Insurance Brokers 13.8% Reinsurance 8.1% Multi-line Insurance 4.1% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets Ryan Specialty Holdings, Inc. 2.2% Primerica, Inc. 2.2% Brighthouse Financial, Inc. 2.1% Globe Life, Inc. 2.1% Unum Group 2.1% Cincinnati Financial Corp. 2.1% Old Republic International Corp. 2.1% CNO Financial Group, Inc. 2.1% Arch Capital Group Ltd. 2.1% Everest Group Ltd. 2.1% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000019033 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR NYSE Technology ETF | ||||||||
| Trading Symbol | XNTK | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR NYSE Technology ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C115"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR NYSE Technology ETF $42 0.35% | ||||||||
| Expenses Paid, Amount | $ 42 | ||||||||
| Expense Ratio, Percent | 0.35% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? The reporting period’s market environment was largely driven by news about inflation, economic growth and the impact either would have on the Fed and other central banks with regard to interest rate decisions. Alongside this macro story was the prospect of a burgeoning artificial intelligence boom, driving up the values of A.I.-related tech and semiconductor companies. A.I.-related semiconductor stocks continued to surge, revealing the investor belief that A.I. represented an enormous secular growth opportunity that transcended concerns about the macroeconomy. These and the Magnificent Seven once again pulled the market up with them into the end of the reporting period, ultimately producing strong net gains for the year. The Fund did not invest in derivatives during the reporting period. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C120"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | XNTK S&P 500 Index NYSE Technology Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $10,008 $9,838 $10,011 8/31/14 $10,396 $10,245 $10,409 9/30/14 $10,169 $10,065 $10,171 10/31/14 $10,194 $10,311 $10,213 11/30/14 $10,662 $10,581 $10,678 12/31/14 $10,621 $10,557 $10,641 1/31/15 $10,166 $10,267 $10,190 2/28/15 $11,056 $10,860 $11,076 3/31/15 $10,568 $10,725 $10,595 4/30/15 $10,889 $10,801 $10,924 5/31/15 $11,032 $10,942 $11,057 6/30/15 $10,625 $10,737 $10,664 7/31/15 $11,228 $10,944 $11,265 8/31/15 $10,689 $10,285 $10,733 9/30/15 $10,500 $10,003 $10,560 10/31/15 $11,610 $10,813 $11,662 11/30/15 $11,735 $10,849 $11,782 12/31/15 $11,456 $10,653 $11,510 1/31/16 $10,398 $10,080 $10,463 2/29/16 $10,398 $10,077 $10,456 3/31/16 $11,207 $10,780 $11,278 4/30/16 $10,990 $10,838 $11,065 5/31/16 $11,528 $11,027 $11,613 6/30/16 $11,230 $11,053 $11,311 7/31/16 $12,139 $11,474 $12,234 8/31/16 $12,551 $11,489 $12,650 9/30/16 $12,800 $11,498 $12,905 10/31/16 $12,826 $11,274 $12,916 11/30/16 $12,916 $11,718 $13,019 12/31/16 $12,993 $11,938 $13,081 1/31/17 $13,782 $12,178 $13,902 2/28/17 $14,408 $12,650 $14,531 3/31/17 $14,751 $12,657 $14,883 4/30/17 $15,215 $12,791 $15,359 5/31/17 $15,820 $12,955 $15,974 6/30/17 $15,674 $13,046 $15,822 7/31/17 $16,229 $13,304 $16,395 8/31/17 $16,719 $13,345 $16,896 9/30/17 $16,976 $13,630 $17,167 10/31/17 $18,042 $13,942 $18,229 11/30/17 $18,207 $14,374 $18,415 12/31/17 $18,204 $14,532 $18,400 1/31/18 $20,051 $15,317 $20,276 2/28/18 $20,130 $14,764 $20,361 3/31/18 $19,304 $14,426 $19,558 4/30/18 $19,134 $14,499 $19,373 5/31/18 $20,237 $14,869 $20,492 6/30/18 $20,326 $14,945 $20,589 7/31/18 $20,196 $15,461 $20,474 8/31/18 $20,685 $15,995 $20,981 9/30/18 $20,603 $16,067 $20,900 10/31/18 $18,323 $14,939 $18,589 11/30/18 $18,435 $15,237 $18,721 12/31/18 $16,752 $13,845 $17,176 1/31/19 $18,585 $15,032 $19,041 2/28/19 $19,473 $15,555 $19,953 3/31/19 $20,093 $15,829 $20,602 4/30/19 $21,387 $16,483 $21,939 5/31/19 $18,968 $15,441 $19,464 6/30/19 $20,522 $16,537 $21,068 7/31/19 $21,267 $16,789 $21,835 8/31/19 $20,614 $16,480 $21,187 9/30/19 $20,583 $16,767 $21,148 10/31/19 $21,148 $17,132 $21,732 11/30/19 $22,142 $17,785 $22,764 12/31/19 $23,157 $18,296 $23,823 1/31/20 $24,043 $18,315 $24,749 2/29/20 $23,157 $16,807 $23,794 3/31/20 $20,776 $14,731 $21,385 4/30/20 $24,095 $16,620 $24,817 5/31/20 $25,993 $17,411 $26,811 6/30/20 $28,275 $17,758 $29,164 7/31/20 $30,732 $18,759 $31,677 8/31/20 $35,458 $20,107 $36,594 9/30/20 $33,769 $19,343 $34,859 10/31/20 $32,709 $18,829 $33,722 11/30/20 $37,640 $20,890 $38,854 12/31/20 $40,228 $21,693 $41,560 1/31/21 $40,961 $21,474 $42,332 2/28/21 $42,036 $22,066 $43,432 3/31/21 $41,242 $23,033 $42,613 4/30/21 $42,819 $24,262 $44,258 5/31/21 $42,478 $24,431 $43,924 6/30/21 $45,352 $25,002 $46,925 7/31/21 $45,244 $25,596 $46,818 8/31/21 $46,877 $26,374 $48,521 9/30/21 $44,638 $25,147 $46,230 10/31/21 $47,364 $26,909 $49,063 11/30/21 $48,079 $26,723 $49,775 12/31/21 $47,329 $27,920 $49,049 1/31/22 $41,958 $26,475 $43,523 2/28/22 $39,675 $25,683 $41,136 3/31/22 $39,756 $26,636 $41,182 4/30/22 $33,845 $24,314 $35,090 5/31/22 $32,869 $24,358 $34,106 6/30/22 $29,561 $22,348 $30,666 7/31/22 $32,412 $24,408 $33,659 8/31/22 $30,881 $23,413 $32,072 9/30/22 $27,028 $21,256 $28,057 10/31/22 $28,087 $22,977 $29,172 11/30/22 $30,790 $24,261 $32,010 12/31/22 $27,904 $22,864 $29,010 1/31/23 $32,485 $24,300 $33,793 2/28/23 $31,971 $23,707 $33,267 3/31/23 $34,947 $24,578 $36,380 4/30/23 $33,803 $24,961 $35,192 5/31/23 $37,553 $25,070 $39,101 6/30/23 $40,242 $26,726 $41,944 7/31/23 $42,916 $27,585 $44,726 8/31/23 $42,007 $27,146 $43,805 9/30/23 $39,471 $25,852 $41,164 10/31/23 $38,376 $25,308 $40,039 11/30/23 $44,625 $27,619 $46,559 12/31/23 $47,473 $28,874 $49,553 1/31/24 $48,981 $29,359 $51,131 2/29/24 $51,925 $30,927 $54,230 3/31/24 $52,735 $31,922 $55,100 4/30/24 $49,918 $30,619 $52,126 5/31/24 $52,709 $32,138 $55,100 6/30/24 $56,575 $33,292 $59,108 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years XNTK 40.45% 22.46% 18.92% S&P 500 Index 24.56% 15.05% 12.86% NYSE Technology Index 40.92% 22.92% 19.44% | ||||||||
| AssetsNet | $ 838,795,974 | $ 838,795,974 | $ 838,795,974 | $ 838,795,974 | $ 838,795,974 | $ 838,795,974 | $ 838,795,974 | $ 838,795,974 | $ 838,795,974 |
| Holdings Count | Holding | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 |
| Advisory Fees Paid, Amount | $ 2,332,693 | ||||||||
| InvestmentCompanyPortfolioTurnover | 8% | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $838,795,974 # of Portfolio Holdings 36 Portfolio Turnover Rate 8% Total Advisory Fees Paid $2,332,693 | ||||||||
| Holdings [Text Block] | Top Ten Industry Industry % Value of Total Net Assets Semiconductors & Semiconductor Equipment 41.8% Software 17.8% Broadline Retail 9.8% Interactive Media & Services 6.5% IT Services 6.1% Hotels, Restaurants & Leisure 5.2% Entertainment 3.4% Ground Transportation 2.7% Technology Hardware, Storage & Peripherals 2.5% Communications Equipment 2.2% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets NVIDIA Corp. 5.9% Micron Technology, Inc. 4.0% Taiwan Semiconductor Manufacturing Co. Ltd. 3.9% Broadcom, Inc. 3.9% Applied Materials, Inc. 3.6% Meta Platforms, Inc. 3.5% Lam Research Corp. 3.5% QUALCOMM, Inc. 3.4% Netflix, Inc. 3.4% ASML Holding NV 3.4% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000033546 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR S&P Health Care Equipment ETF | ||||||||
| Trading Symbol | XHE | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR S&P Health Care Equipment ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C139"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR S&P Health Care Equipment ETF $33 0.35% | ||||||||
| Expenses Paid, Amount | $ 33 | ||||||||
| Expense Ratio, Percent | 0.35% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? U.S. Economic indicators from the U.S. remained relatively strong over the Q3 2023. While investors began the quarter with hopes that the rate hikes would soon end and cuts would begin, that probability ended by the end of the quarter. U.S. stocks rallied in Q4 2023, supported by prospects of rate cuts in 2024. U.S. equities rallied for a second straight quarter in Q1 2024. The A.I. theme was a key tailwinds in Q1 2024. The Healthcare Equipment Industry has been greatly benefiting from A.I. as well. As baby boomers continue to age, the demand for healthcare continues to grow. A.I. can be used collaboratively by surgical staff to improve outcomes or reduce risk during procedures. All routine elements of the operating room experience that can be quantified digitally and integrated into a digital pathway has helped improve automation and optimization. U.S. equity indices were mixed in Q2 2024, with a tough start to the quarter in April. The Fed, held the interest rates steady and struck a hawkish tone in June, maintaining the current policy rate and projecting only one rate cut in 2024. Health Care Equipment industry was able to report year-over-year growth in earnings. The Fund did not invest in derivatives during the reporting period. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C144"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | XHE S&P 500 Index S&P Health Care Equipment Select Industry Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $9,825 $9,838 $9,828 8/31/14 $9,845 $10,245 $9,853 9/30/14 $9,515 $10,065 $9,516 10/31/14 $10,483 $10,311 $10,488 11/30/14 $10,894 $10,581 $10,901 12/31/14 $11,251 $10,557 $11,262 1/31/15 $11,339 $10,267 $11,350 2/28/15 $11,992 $10,860 $11,998 3/31/15 $12,311 $10,725 $12,324 4/30/15 $11,738 $10,801 $11,761 5/31/15 $11,981 $10,942 $12,002 6/30/15 $12,150 $10,737 $12,173 7/31/15 $12,703 $10,944 $12,720 8/31/15 $12,150 $10,285 $12,178 9/30/15 $11,214 $10,003 $11,230 10/31/15 $11,648 $10,813 $11,672 11/30/15 $12,276 $10,849 $12,303 12/31/15 $12,236 $10,653 $12,302 1/31/16 $10,911 $10,080 $10,952 2/29/16 $11,088 $10,077 $11,148 3/31/16 $11,780 $10,780 $11,843 4/30/16 $12,181 $10,838 $12,239 5/31/16 $12,322 $11,027 $12,386 6/30/16 $13,111 $11,053 $13,181 7/31/16 $13,845 $11,474 $13,924 8/31/16 $14,277 $11,489 $14,361 9/30/16 $14,339 $11,498 $14,433 10/31/16 $13,237 $11,274 $13,335 11/30/16 $13,583 $11,718 $13,658 12/31/16 $13,796 $11,938 $13,886 1/31/17 $14,336 $12,178 $14,445 2/28/17 $15,173 $12,650 $15,274 3/31/17 $15,587 $12,657 $15,694 4/30/17 $16,138 $12,791 $16,264 5/31/17 $16,009 $12,955 $16,141 6/30/17 $16,982 $13,046 $17,120 7/31/17 $16,780 $13,304 $16,929 8/31/17 $17,047 $13,345 $17,181 9/30/17 $17,367 $13,630 $17,530 10/31/17 $17,765 $13,942 $17,912 11/30/17 $18,502 $14,374 $18,635 12/31/17 $17,998 $14,532 $18,114 1/31/18 $19,402 $15,317 $19,575 2/28/18 $18,781 $14,764 $18,984 3/31/18 $19,460 $14,426 $19,605 4/30/18 $19,825 $14,499 $20,028 5/31/18 $21,499 $14,869 $21,751 6/30/18 $21,848 $14,945 $22,101 7/31/18 $22,535 $15,461 $22,790 8/31/18 $24,620 $15,995 $24,918 9/30/18 $24,511 $16,067 $24,811 10/31/18 $21,544 $14,939 $21,807 11/30/18 $21,771 $15,237 $22,045 12/31/18 $19,584 $13,845 $19,848 1/31/19 $21,401 $15,032 $21,677 2/28/19 $22,422 $15,555 $22,710 3/31/19 $22,448 $15,829 $22,745 4/30/19 $21,698 $16,483 $21,998 5/31/19 $20,888 $15,441 $21,177 6/30/19 $22,866 $16,537 $23,207 7/31/19 $23,257 $16,789 $23,589 8/31/19 $22,276 $16,480 $22,620 9/30/19 $21,836 $16,767 $22,170 10/31/19 $22,083 $17,132 $22,421 11/30/19 $23,865 $17,785 $24,228 12/31/19 $23,961 $18,296 $24,357 1/31/20 $23,824 $18,315 $24,225 2/29/20 $22,359 $16,807 $22,720 3/31/20 $20,046 $14,731 $20,396 4/30/20 $23,360 $16,620 $23,752 5/31/20 $24,606 $17,411 $25,032 6/30/20 $24,954 $17,758 $25,391 7/31/20 $26,663 $18,759 $27,131 8/31/20 $27,063 $20,107 $27,545 9/30/20 $27,206 $19,343 $27,710 10/31/20 $27,266 $18,829 $27,757 11/30/20 $29,613 $20,890 $30,148 12/31/20 $31,838 $21,693 $32,431 1/31/21 $33,087 $21,474 $33,735 2/28/21 $33,643 $22,066 $34,330 3/31/21 $33,393 $23,033 $34,054 4/30/21 $35,200 $24,262 $35,902 5/31/21 $33,829 $24,431 $34,520 6/30/21 $36,092 $25,002 $36,835 7/31/21 $36,289 $25,596 $37,075 8/31/21 $36,597 $26,374 $37,384 9/30/21 $34,950 $25,147 $35,711 10/31/21 $35,168 $26,909 $35,944 11/30/21 $31,549 $26,723 $32,274 12/31/21 $32,816 $27,920 $33,565 1/31/22 $28,970 $26,475 $29,638 2/28/22 $30,556 $25,683 $31,209 3/31/22 $31,280 $26,636 $31,994 4/30/22 $26,629 $24,314 $27,234 5/31/22 $25,434 $24,358 $26,004 6/30/22 $23,747 $22,348 $24,290 7/31/22 $26,128 $24,408 $26,736 8/31/22 $25,882 $23,413 $26,480 9/30/22 $23,840 $21,256 $24,379 10/31/22 $24,720 $22,977 $25,298 11/30/22 $25,658 $24,261 $26,270 12/31/22 $25,119 $22,864 $25,726 1/31/23 $26,745 $24,300 $27,413 2/28/23 $26,014 $23,707 $26,660 3/31/23 $26,205 $24,578 $26,844 4/30/23 $27,325 $24,961 $28,014 5/31/23 $26,056 $25,070 $26,716 6/30/23 $27,504 $26,726 $28,192 7/31/23 $27,492 $27,585 $28,203 8/31/23 $24,293 $27,146 $24,920 9/30/23 $21,835 $25,852 $22,400 10/31/23 $19,063 $25,308 $19,561 11/30/23 $20,954 $27,619 $21,544 12/31/23 $23,613 $28,874 $24,268 1/31/24 $23,466 $29,359 $24,116 2/29/24 $23,654 $30,927 $24,330 3/31/24 $24,597 $31,922 $25,295 4/30/24 $22,950 $30,619 $23,596 5/31/24 $24,085 $32,138 $24,765 6/30/24 $23,615 $33,292 $24,307 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years XHE (14.08%) 0.63% 8.98% S&P 500 Index 24.56% 15.05% 12.86% S&P Health Care Equipment Select Industry Index (13.78%) 0.93% 9.29% | ||||||||
| AssetsNet | $ 244,827,488 | $ 244,827,488 | $ 244,827,488 | $ 244,827,488 | $ 244,827,488 | $ 244,827,488 | $ 244,827,488 | $ 244,827,488 | $ 244,827,488 |
| Holdings Count | Holding | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 |
| Advisory Fees Paid, Amount | $ 1,229,454 | ||||||||
| InvestmentCompanyPortfolioTurnover | 38% | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $244,827,488 # of Portfolio Holdings 68 Portfolio Turnover Rate 38% Total Advisory Fees Paid $1,229,454 | ||||||||
| Holdings [Text Block] | Top Industry Industry % Value of Total Net Assets Health Care Equipment 75.1% Health Care Supplies 24.7% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets Silk Road Medical, Inc. 2.0% STAAR Surgical Co. 2.0% iRhythm Technologies, Inc. 2.0% AtriCure, Inc. 1.9% Inari Medical, Inc. 1.8% TransMedics Group, Inc. 1.8% Edwards Lifesciences Corp. 1.8% Glaukos Corp. 1.8% Merit Medical Systems, Inc. 1.8% UFP Technologies, Inc. 1.8% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000033547 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR S&P Health Care Services ETF | ||||||||
| Trading Symbol | XHS | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR S&P Health Care Services ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C163"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR S&P Health Care Services ETF $34 0.35% | ||||||||
| Expenses Paid, Amount | $ 34 | ||||||||
| Expense Ratio, Percent | 0.35% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Performance of the Fund was negatively impacted by rising costs to operate in the Health Care Services industry. The industry has also struggled with staffing normalization during the years following the global pandemic. The Fund did not invest in derivatives during the reporting period. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C168"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | XHS S&P 500 Index S&P Health Care Services Select Industry Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $10,186 $9,838 $10,188 8/31/14 $10,582 $10,245 $10,584 9/30/14 $10,230 $10,065 $10,239 10/31/14 $10,966 $10,311 $10,976 11/30/14 $11,046 $10,581 $11,064 12/31/14 $11,331 $10,557 $11,353 1/31/15 $11,203 $10,267 $11,236 2/28/15 $12,155 $10,860 $12,185 3/31/15 $12,570 $10,725 $12,597 4/30/15 $12,178 $10,801 $12,215 5/31/15 $12,885 $10,942 $12,929 6/30/15 $13,258 $10,737 $13,301 7/31/15 $13,264 $10,944 $13,316 8/31/15 $12,544 $10,285 $12,602 9/30/15 $11,524 $10,003 $11,581 10/31/15 $11,595 $10,813 $11,648 11/30/15 $11,839 $10,849 $11,901 12/31/15 $11,683 $10,653 $11,759 1/31/16 $10,731 $10,080 $10,797 2/29/16 $10,664 $10,077 $10,725 3/31/16 $11,297 $10,780 $11,373 4/30/16 $11,794 $10,838 $11,876 5/31/16 $11,696 $11,027 $11,788 6/30/16 $11,697 $11,053 $11,779 7/31/16 $12,017 $11,474 $12,111 8/31/16 $11,211 $11,489 $11,299 9/30/16 $11,257 $11,498 $11,349 10/31/16 $10,292 $11,274 $10,377 11/30/16 $10,601 $11,718 $10,689 12/31/16 $10,732 $11,938 $10,824 1/31/17 $11,290 $12,178 $11,397 2/28/17 $11,967 $12,650 $12,082 3/31/17 $11,868 $12,657 $11,986 4/30/17 $11,991 $12,791 $12,113 5/31/17 $12,288 $12,955 $12,414 6/30/17 $13,171 $13,046 $13,313 7/31/17 $12,539 $13,304 $12,675 8/31/17 $12,354 $13,345 $12,509 9/30/17 $12,498 $13,630 $12,642 10/31/17 $12,098 $13,942 $12,241 11/30/17 $12,449 $14,374 $12,601 12/31/17 $12,566 $14,532 $12,717 1/31/18 $13,596 $15,317 $13,761 2/28/18 $13,065 $14,764 $13,219 3/31/18 $12,857 $14,426 $12,982 4/30/18 $13,373 $14,499 $13,504 5/31/18 $13,852 $14,869 $14,004 6/30/18 $14,223 $14,945 $14,406 7/31/18 $14,707 $15,461 $14,906 8/31/18 $15,628 $15,995 $15,852 9/30/18 $15,706 $16,067 $15,896 10/31/18 $14,665 $14,939 $14,885 11/30/18 $15,464 $15,237 $15,665 12/31/18 $12,876 $13,845 $13,100 1/31/19 $14,272 $15,032 $14,513 2/28/19 $14,070 $15,555 $14,304 3/31/19 $13,255 $15,829 $13,478 4/30/19 $13,142 $16,483 $13,374 5/31/19 $12,751 $15,441 $12,973 6/30/19 $13,695 $16,537 $13,945 7/31/19 $14,041 $16,789 $14,300 8/31/19 $13,162 $16,480 $13,416 9/30/19 $12,840 $16,767 $13,081 10/31/19 $13,327 $17,132 $13,580 11/30/19 $14,903 $17,785 $15,182 12/31/19 $15,310 $18,296 $15,613 1/31/20 $15,143 $18,315 $15,448 2/29/20 $14,212 $16,807 $14,488 3/31/20 $12,162 $14,731 $12,391 4/30/20 $13,483 $16,620 $13,747 5/31/20 $14,721 $17,411 $15,022 6/30/20 $14,337 $17,758 $14,642 7/31/20 $16,005 $18,759 $16,350 8/31/20 $16,415 $20,107 $16,770 9/30/20 $16,305 $19,343 $16,670 10/31/20 $16,556 $18,829 $16,915 11/30/20 $18,918 $20,890 $19,339 12/31/20 $20,422 $21,693 $20,892 1/31/21 $21,738 $21,474 $22,259 2/28/21 $21,455 $22,066 $21,972 3/31/21 $22,444 $23,033 $22,967 4/30/21 $23,216 $24,262 $23,754 5/31/21 $23,785 $24,431 $24,341 6/30/21 $24,152 $25,002 $24,745 7/31/21 $23,645 $25,596 $24,187 8/31/21 $23,495 $26,374 $24,058 9/30/21 $22,024 $25,147 $22,538 10/31/21 $22,407 $26,909 $22,950 11/30/21 $20,765 $26,723 $21,278 12/31/21 $22,417 $27,920 $22,981 1/31/22 $19,410 $26,475 $19,904 2/28/22 $20,066 $25,683 $20,581 3/31/22 $21,413 $26,636 $21,961 4/30/22 $18,473 $24,314 $18,953 5/31/22 $18,298 $24,358 $18,783 6/30/22 $17,419 $22,348 $17,859 7/31/22 $20,110 $24,408 $20,625 8/31/22 $19,630 $23,413 $20,141 9/30/22 $18,572 $21,256 $19,060 10/31/22 $19,449 $22,977 $19,959 11/30/22 $18,988 $24,261 $19,489 12/31/22 $17,956 $22,864 $18,458 1/31/23 $19,611 $24,300 $20,157 2/28/23 $19,280 $23,707 $19,791 3/31/23 $18,321 $24,578 $18,813 4/30/23 $18,981 $24,961 $19,480 5/31/23 $18,290 $25,070 $18,790 6/30/23 $19,870 $26,726 $20,404 7/31/23 $19,922 $27,585 $20,460 8/31/23 $18,884 $27,146 $19,401 9/30/23 $17,671 $25,852 $18,151 10/31/23 $16,836 $25,308 $17,304 11/30/23 $17,993 $27,619 $18,478 12/31/23 $18,896 $28,874 $19,414 1/31/24 $18,442 $29,359 $18,958 2/29/24 $19,175 $30,927 $19,722 3/31/24 $20,140 $31,922 $20,726 4/30/24 $18,792 $30,619 $19,320 5/31/24 $19,566 $32,138 $20,122 6/30/24 $19,137 $33,292 $19,701 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years XHS (3.65%) 6.92% 6.71% S&P 500 Index 24.56% 15.05% 12.86% S&P Health Care Services Select Industry Index (3.46%) 7.15% 7.02% | ||||||||
| AssetsNet | $ 80,990,203 | $ 80,990,203 | $ 80,990,203 | $ 80,990,203 | $ 80,990,203 | $ 80,990,203 | $ 80,990,203 | $ 80,990,203 | $ 80,990,203 |
| Holdings Count | Holding | 62 | 62 | 62 | 62 | 62 | 62 | 62 | 62 | 62 |
| Advisory Fees Paid, Amount | $ 325,906 | ||||||||
| InvestmentCompanyPortfolioTurnover | 37% | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $80,990,203 # of Portfolio Holdings 62 Portfolio Turnover Rate 37% Total Advisory Fees Paid $325,906 | ||||||||
| Holdings [Text Block] | Top Industry Industry % Value of Total Net Assets Health Care Services 48.1% Health Care Facilities 21.5% Managed Health Care 16.2% Health Care Distributors 14.2% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets Patterson Cos., Inc. 2.3% Progyny, Inc. 2.3% HealthEquity, Inc. 2.3% Humana, Inc. 2.3% Ensign Group, Inc. 2.3% Select Medical Holdings Corp. 2.3% Acadia Healthcare Co., Inc. 2.3% UnitedHealth Group, Inc. 2.2% Labcorp Holdings, Inc. 2.2% Encompass Health Corp. 2.2% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000033549 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR S&P Metals & Mining ETF | ||||||||
| Trading Symbol | XME | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR S&P Metals & Mining ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C187"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR S&P Metals & Mining ETF $38 0.35% | ||||||||
| Expenses Paid, Amount | $ 38 | ||||||||
| Expense Ratio, Percent | 0.35% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Performance of the Fund has been driven by rising metal prices and solid demand. Companies in the metals and mining industry have been focusing on investing in technology, keeping operating costs low, and improving efficiency to increase profits. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C192"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | XME S&P 500 Index S&P Metals & Mining Select Industry Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $9,789 $9,838 $9,782 8/31/14 $10,355 $10,245 $10,345 9/30/14 $8,747 $10,065 $8,726 10/31/14 $8,371 $10,311 $8,362 11/30/14 $8,015 $10,581 $7,982 12/31/14 $7,399 $10,557 $7,368 1/31/15 $6,502 $10,267 $6,482 2/28/15 $7,008 $10,860 $6,984 3/31/15 $6,299 $10,725 $6,273 4/30/15 $6,794 $10,801 $6,758 5/31/15 $6,522 $10,942 $6,496 6/30/15 $5,866 $10,737 $5,842 7/31/15 $4,882 $10,944 $4,857 8/31/15 $4,947 $10,285 $4,931 9/30/15 $4,058 $10,003 $4,035 10/31/15 $4,181 $10,813 $4,153 11/30/15 $3,900 $10,849 $3,867 12/31/15 $3,664 $10,653 $3,627 1/31/16 $3,407 $10,080 $3,368 2/29/16 $4,085 $10,077 $4,024 3/31/16 $5,030 $10,780 $4,949 4/30/16 $6,060 $10,838 $5,959 5/31/16 $5,416 $11,027 $5,328 6/30/16 $6,020 $11,053 $5,920 7/31/16 $7,167 $11,474 $7,054 8/31/16 $6,343 $11,489 $6,243 9/30/16 $6,571 $11,498 $6,470 10/31/16 $6,304 $11,274 $6,206 11/30/16 $7,705 $11,718 $7,598 12/31/16 $7,543 $11,938 $7,442 1/31/17 $8,280 $12,178 $8,161 2/28/17 $8,025 $12,650 $7,915 3/31/17 $7,552 $12,657 $7,452 4/30/17 $7,406 $12,791 $7,308 5/31/17 $7,182 $12,955 $7,088 6/30/17 $7,455 $13,046 $7,360 7/31/17 $7,821 $13,304 $7,727 8/31/17 $8,066 $13,345 $7,968 9/30/17 $8,021 $13,630 $7,923 10/31/17 $7,892 $13,942 $7,804 11/30/17 $7,964 $14,374 $7,869 12/31/17 $9,076 $14,532 $8,979 1/31/18 $9,268 $15,317 $9,184 2/28/18 $9,057 $14,764 $8,971 3/31/18 $8,564 $14,426 $8,476 4/30/18 $8,795 $14,499 $8,706 5/31/18 $9,426 $14,869 $9,333 6/30/18 $9,024 $14,945 $8,937 7/31/18 $9,131 $15,461 $9,054 8/31/18 $8,628 $15,995 $8,552 9/30/18 $8,702 $16,067 $8,625 10/31/18 $7,791 $14,939 $7,730 11/30/18 $7,394 $15,237 $7,325 12/31/18 $6,691 $13,845 $6,640 1/31/19 $7,843 $15,032 $7,778 2/28/19 $7,902 $15,555 $7,841 3/31/19 $7,629 $15,829 $7,573 4/30/19 $7,400 $16,483 $7,348 5/31/19 $6,266 $15,441 $6,220 6/30/19 $7,370 $16,537 $7,327 7/31/19 $7,266 $16,789 $7,223 8/31/19 $6,620 $16,480 $6,586 9/30/19 $6,631 $16,767 $6,600 10/31/19 $6,858 $17,132 $6,816 11/30/19 $7,212 $17,785 $7,162 12/31/19 $7,666 $18,296 $7,624 1/31/20 $6,519 $18,315 $6,485 2/29/20 $5,802 $16,807 $5,773 3/31/20 $4,247 $14,731 $4,233 4/30/20 $5,081 $16,620 $5,061 5/31/20 $5,488 $17,411 $5,462 6/30/20 $5,606 $17,758 $5,586 7/31/20 $6,050 $18,759 $6,028 8/31/20 $6,551 $20,107 $6,532 9/30/20 $6,161 $19,343 $6,142 10/31/20 $6,470 $18,829 $6,453 11/30/20 $7,765 $20,890 $7,747 12/31/20 $8,890 $21,693 $8,878 1/31/21 $8,603 $21,474 $8,593 2/28/21 $9,538 $22,066 $9,535 3/31/21 $10,634 $23,033 $10,621 4/30/21 $10,790 $24,262 $10,799 5/31/21 $12,376 $24,431 $12,382 6/30/21 $11,492 $25,002 $11,498 7/31/21 $11,996 $25,596 $12,012 8/31/21 $11,819 $26,374 $11,843 9/30/21 $11,156 $25,147 $11,172 10/31/21 $11,665 $26,909 $11,692 11/30/21 $10,999 $26,723 $11,037 12/31/21 $11,991 $27,920 $12,028 1/31/22 $11,189 $26,475 $11,224 2/28/22 $14,105 $25,683 $14,161 3/31/22 $16,451 $26,636 $16,512 4/30/22 $15,060 $24,314 $15,134 5/31/22 $14,381 $24,358 $14,441 6/30/22 $11,699 $22,348 $11,751 7/31/22 $13,002 $24,408 $13,061 8/31/22 $13,231 $23,413 $13,295 9/30/22 $11,500 $21,256 $11,548 10/31/22 $13,118 $22,977 $13,182 11/30/22 $14,596 $24,261 $14,680 12/31/22 $13,565 $22,864 $13,647 1/31/23 $15,565 $24,300 $15,657 2/28/23 $15,305 $23,707 $15,408 3/31/23 $14,529 $24,578 $14,625 4/30/23 $13,501 $24,961 $13,599 5/31/23 $12,174 $25,070 $12,254 6/30/23 $13,938 $26,726 $14,038 7/31/23 $14,789 $27,585 $14,891 8/31/23 $14,285 $27,146 $14,400 9/30/23 $14,445 $25,852 $14,555 10/31/23 $13,611 $25,308 $13,727 11/30/23 $15,061 $27,619 $15,190 12/31/23 $16,484 $28,874 $16,639 1/31/24 $15,755 $29,359 $15,912 2/29/24 $15,576 $30,927 $15,732 3/31/24 $16,639 $31,922 $16,806 4/30/24 $16,369 $30,619 $16,541 5/31/24 $17,793 $32,138 $17,979 6/30/24 $16,417 $33,292 $16,592 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years XME 17.83% 17.36% 5.09% S&P 500 Index 24.56% 15.05% 12.86% S&P Metals & Mining Select Industry Index 18.22% 17.77% 5.19% | ||||||||
| AssetsNet | $ 1,994,814,118 | $ 1,994,814,118 | $ 1,994,814,118 | $ 1,994,814,118 | $ 1,994,814,118 | $ 1,994,814,118 | $ 1,994,814,118 | $ 1,994,814,118 | $ 1,994,814,118 |
| Holdings Count | Holding | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 |
| Advisory Fees Paid, Amount | $ 6,476,584 | ||||||||
| InvestmentCompanyPortfolioTurnover | 43% | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $1,994,814,118 # of Portfolio Holdings 38 Portfolio Turnover Rate 43% Total Advisory Fees Paid $6,476,584 | ||||||||
| Holdings [Text Block] | Top Industry Industry % Value of Total Net Assets Steel 55.2% Gold 12.9% Coal & Consumable Fuels 11.3% Aluminum 7.4% Copper 4.6% Silver 4.3% Diversified Metals & Mining 4.2% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets Carpenter Technology Corp. 5.0% Steel Dynamics, Inc. 4.9% Alcoa Corp. 4.8% ATI, Inc. 4.8% U.S. Steel Corp. 4.8% Cleveland-Cliffs, Inc. 4.8% Reliance, Inc. 4.8% Royal Gold, Inc. 4.7% Newmont Corp. 4.7% Nucor Corp. 4.7% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000033550 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR S&P Oil & Gas Equipment & Services ETF | ||||||||
| Trading Symbol | XES | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR S&P Oil & Gas Equipment & Services ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C211"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR S&P Oil & Gas Equipment & Services ETF $38 0.35% | ||||||||
| Expenses Paid, Amount | $ 38 | ||||||||
| Expense Ratio, Percent | 0.35% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Most of the Fund’s underperformance in the first half of the fiscal year occurred in the 3rd quarter of 2023, as Energy sector posted robust gains, up 19.6%, with the West Texas Intermediate (WTI) crude oil index rising by 31.7%, its best quarterly gain since Q1 2022 (Ukraine invasion). Crude oil prices were supported by OPEC+ production cuts that squeezed global crude supply. Although things took a turn in the 4th quarter of 2023, driven primarily by lower energy prices. The Fund still closed the first 6 months under review with positive returns. Similarly, in the second half of the period under review, the Fund continued to post positive returns mostly benefited by the strong performance in energy sector, with the West Texas Intermediate (WTI) crude oil index registering over 17% for the 1st quarter of 2024. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C216"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | XES S&P 500 Index S&P Oil & Gas Equipment & Services Select Industry Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $9,101 $9,838 $9,104 8/31/14 $9,280 $10,245 $9,288 9/30/14 $8,169 $10,065 $8,169 10/31/14 $7,233 $10,311 $7,236 11/30/14 $6,065 $10,581 $6,066 12/31/14 $5,771 $10,557 $5,768 1/31/15 $5,102 $10,267 $5,095 2/28/15 $5,452 $10,860 $5,446 3/31/15 $5,165 $10,725 $5,157 4/30/15 $6,172 $10,801 $6,163 5/31/15 $5,711 $10,942 $5,704 6/30/15 $5,377 $10,737 $5,367 7/31/15 $4,477 $10,944 $4,468 8/31/15 $4,483 $10,285 $4,475 9/30/15 $3,689 $10,003 $3,679 10/31/15 $4,142 $10,813 $4,131 11/30/15 $4,287 $10,849 $4,277 12/31/15 $3,662 $10,653 $3,653 1/31/16 $3,228 $10,080 $3,220 2/29/16 $3,132 $10,077 $3,124 3/31/16 $3,621 $10,780 $3,615 4/30/16 $4,088 $10,838 $4,081 5/31/16 $3,799 $11,027 $3,790 6/30/16 $3,930 $11,053 $3,927 7/31/16 $3,714 $11,474 $3,709 8/31/16 $3,680 $11,489 $3,676 9/30/16 $3,997 $11,498 $3,997 10/31/16 $3,711 $11,274 $3,708 11/30/16 $4,455 $11,718 $4,455 12/31/16 $4,699 $11,938 $4,701 1/31/17 $4,727 $12,178 $4,730 2/28/17 $4,508 $12,650 $4,511 3/31/17 $4,230 $12,657 $4,237 4/30/17 $3,735 $12,791 $3,741 5/31/17 $3,384 $12,955 $3,391 6/30/17 $3,266 $13,046 $3,273 7/31/17 $3,234 $13,304 $3,241 8/31/17 $2,846 $13,345 $2,849 9/30/17 $3,540 $13,630 $3,547 10/31/17 $3,294 $13,942 $3,300 11/30/17 $3,384 $14,374 $3,390 12/31/17 $3,670 $14,532 $3,675 1/31/18 $3,749 $15,317 $3,757 2/28/18 $3,139 $14,764 $3,146 3/31/18 $3,123 $14,426 $3,132 4/30/18 $3,656 $14,499 $3,666 5/31/18 $3,708 $14,869 $3,717 6/30/18 $3,645 $14,945 $3,654 7/31/18 $3,665 $15,461 $3,675 8/31/18 $3,487 $15,995 $3,499 9/30/18 $3,594 $16,067 $3,606 10/31/18 $2,920 $14,939 $2,930 11/30/18 $2,551 $15,237 $2,559 12/31/18 $1,940 $13,845 $1,947 1/31/19 $2,361 $15,032 $2,368 2/28/19 $2,449 $15,555 $2,461 3/31/19 $2,492 $15,829 $2,503 4/30/19 $2,412 $16,483 $2,421 5/31/19 $1,863 $15,441 $1,873 6/30/19 $2,085 $16,537 $2,096 7/31/19 $2,000 $16,789 $2,011 8/31/19 $1,556 $16,480 $1,565 9/30/19 $1,574 $16,767 $1,584 10/31/19 $1,455 $17,132 $1,462 11/30/19 $1,487 $17,785 $1,495 12/31/19 $1,769 $18,296 $1,779 1/31/20 $1,426 $18,315 $1,434 2/29/20 $1,175 $16,807 $1,180 3/31/20 $502 $14,731 $505 4/30/20 $646 $16,620 $650 5/31/20 $718 $17,411 $720 6/30/20 $736 $17,758 $740 7/31/20 $758 $18,759 $762 8/31/20 $766 $20,107 $770 9/30/20 $622 $19,343 $626 10/31/20 $610 $18,829 $613 11/30/20 $869 $20,890 $875 12/31/20 $1,000 $21,693 $1,007 1/31/21 $1,077 $21,474 $1,085 2/28/21 $1,286 $22,066 $1,296 3/31/21 $1,205 $23,033 $1,212 4/30/21 $1,141 $24,262 $1,150 5/31/21 $1,325 $24,431 $1,335 6/30/21 $1,401 $25,002 $1,411 7/31/21 $1,198 $25,596 $1,207 8/31/21 $1,165 $26,374 $1,174 9/30/21 $1,232 $25,147 $1,242 10/31/21 $1,295 $26,909 $1,305 11/30/21 $1,091 $26,723 $1,099 12/31/21 $1,121 $27,920 $1,130 1/31/22 $1,318 $26,475 $1,329 2/28/22 $1,458 $25,683 $1,471 3/31/22 $1,704 $26,636 $1,720 4/30/22 $1,594 $24,314 $1,610 5/31/22 $1,743 $24,358 $1,762 6/30/22 $1,358 $22,348 $1,371 7/31/22 $1,453 $24,408 $1,469 8/31/22 $1,429 $23,413 $1,444 9/30/22 $1,255 $21,256 $1,268 10/31/22 $1,786 $22,977 $1,805 11/30/22 $1,791 $24,261 $1,812 12/31/22 $1,816 $22,864 $1,837 1/31/23 $1,996 $24,300 $2,020 2/28/23 $1,944 $23,707 $1,968 3/31/23 $1,716 $24,578 $1,737 4/30/23 $1,682 $24,961 $1,703 5/31/23 $1,530 $25,070 $1,549 6/30/23 $1,785 $26,726 $1,809 7/31/23 $2,157 $27,585 $2,186 8/31/23 $2,124 $27,146 $2,154 9/30/23 $2,191 $25,852 $2,222 10/31/23 $2,001 $25,308 $2,030 11/30/23 $1,912 $27,619 $1,940 12/31/23 $1,938 $28,874 $1,967 1/31/24 $1,871 $29,359 $1,899 2/29/24 $1,880 $30,927 $1,911 3/31/24 $2,140 $31,922 $2,176 4/30/24 $2,035 $30,619 $2,068 5/31/24 $2,156 $32,138 $2,191 6/30/24 $2,096 $33,292 $2,133 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years XES 17.44% 0.11% (14.46%) S&P 500 Index 24.56% 15.05% 12.86% S&P Oil & Gas Equipment & Services Select Industry Index 17.89% 0.35% (14.32%) | ||||||||
| AssetsNet | $ 246,942,374 | $ 246,942,374 | $ 246,942,374 | $ 246,942,374 | $ 246,942,374 | $ 246,942,374 | $ 246,942,374 | $ 246,942,374 | $ 246,942,374 |
| Holdings Count | Holding | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 |
| Advisory Fees Paid, Amount | $ 1,194,117 | ||||||||
| InvestmentCompanyPortfolioTurnover | 39% | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $246,942,374 # of Portfolio Holdings 34 Portfolio Turnover Rate 39% Total Advisory Fees Paid $1,194,117 | ||||||||
| Holdings [Text Block] | Top Industry Industry % Value of Total Net Assets Oil & Gas Equipment & Services 72.6% Oil & Gas Drilling 27.3% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets Baker Hughes Co. 4.9% Helmerich & Payne, Inc. 4.8% ChampionX Corp. 4.8% Weatherford International PLC 4.7% Schlumberger NV 4.7% NOV, Inc. 4.7% TechnipFMC PLC 4.7% Patterson-UTI Energy, Inc. 4.6% Noble Corp. PLC 4.5% Archrock, Inc. 4.5% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000033537 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR S&P Pharmaceuticals ETF | ||||||||
| Trading Symbol | XPH | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR S&P Pharmaceuticals ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C235"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR S&P Pharmaceuticals ETF $35 0.35% | ||||||||
| Expenses Paid, Amount | $ 35 | ||||||||
| Expense Ratio, Percent | 0.35% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? The Pharmaceutical Industry had a repeat outcome of last fiscal year’s disappointing results. For the second straight reporting period, the Industry lost value (-1.52%) while the broader S&P 500 gained significantly (+24.56%). The stabilization of COVID-19 continues to decrease vaccine demands and persistent patent expirations have caused the market to flood with generic versions of once exclusive drugs. This supply and demand conundrum has added another layer to healthcare spending reforms. The largest headwind to the Industry actually started to take shape back in 2022. The Inflation Reduction Act (IRA), which was signed into law in August 2022, requires drug manufacturers to pay a rebate to the government if prices on certain products increase faster than the inflation rate. Even though inflation itself was relatively high during the period, median drug prices were even higher. When the period began in July 2023, there were 112 drugs that had price increases (at a median clip of 3.9%) that were higher than the inflation rate of 3.4%. The options for these companies are to pay the penalty or decrease their pricing. Neither option is favorable to the Industry or the eyes of its investors. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C240"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | XPH S&P 500 Index S&P Pharmaceuticals Select Industry Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $9,171 $9,838 $9,172 8/31/14 $10,010 $10,245 $10,014 9/30/14 $10,241 $10,065 $10,238 10/31/14 $10,766 $10,311 $10,774 11/30/14 $11,121 $10,581 $11,120 12/31/14 $10,960 $10,557 $10,962 1/31/15 $11,301 $10,267 $11,301 2/28/15 $12,547 $10,860 $12,549 3/31/15 $12,551 $10,725 $12,554 4/30/15 $11,927 $10,801 $11,936 5/31/15 $12,633 $10,942 $12,640 6/30/15 $12,694 $10,737 $12,702 7/31/15 $13,329 $10,944 $13,339 8/31/15 $11,790 $10,285 $11,811 9/30/15 $9,568 $10,003 $9,578 10/31/15 $9,957 $10,813 $9,953 11/30/15 $11,001 $10,849 $11,012 12/31/15 $11,120 $10,653 $11,160 1/31/16 $9,358 $10,080 $9,389 2/29/16 $8,839 $10,077 $8,877 3/31/16 $8,745 $10,780 $8,775 4/30/16 $9,190 $10,838 $9,223 5/31/16 $9,464 $11,027 $9,496 6/30/16 $9,110 $11,053 $9,143 7/31/16 $10,007 $11,474 $10,047 8/31/16 $9,770 $11,489 $9,809 9/30/16 $9,630 $11,498 $9,673 10/31/16 $8,667 $11,274 $8,701 11/30/16 $8,566 $11,718 $8,598 12/31/16 $8,542 $11,938 $8,572 1/31/17 $8,472 $12,178 $8,503 2/28/17 $9,147 $12,650 $9,185 3/31/17 $9,151 $12,657 $9,192 4/30/17 $9,418 $12,791 $9,459 5/31/17 $9,119 $12,955 $9,162 6/30/17 $9,426 $13,046 $9,471 7/31/17 $9,461 $13,304 $9,502 8/31/17 $9,397 $13,345 $9,443 9/30/17 $9,339 $13,630 $9,382 10/31/17 $8,907 $13,942 $8,951 11/30/17 $9,442 $14,374 $9,490 12/31/17 $9,567 $14,532 $9,617 1/31/18 $9,815 $15,317 $9,869 2/28/18 $9,150 $14,764 $9,200 3/31/18 $9,213 $14,426 $9,271 4/30/18 $8,856 $14,499 $8,907 5/31/18 $9,271 $14,869 $9,325 6/30/18 $9,472 $14,945 $9,534 7/31/18 $10,235 $15,461 $10,308 8/31/18 $11,005 $15,995 $11,072 9/30/18 $10,719 $16,067 $10,784 10/31/18 $9,544 $14,939 $9,609 11/30/18 $9,623 $15,237 $9,693 12/31/18 $8,105 $13,845 $8,170 1/31/19 $8,881 $15,032 $8,945 2/28/19 $9,492 $15,555 $9,566 3/31/19 $9,220 $15,829 $9,292 4/30/19 $8,821 $16,483 $8,889 5/31/19 $8,149 $15,441 $8,207 6/30/19 $8,826 $16,537 $8,893 7/31/19 $8,427 $16,789 $8,494 8/31/19 $7,866 $16,480 $7,931 9/30/19 $7,923 $16,767 $7,987 10/31/19 $8,612 $17,132 $8,678 11/30/19 $9,105 $17,785 $9,174 12/31/19 $10,190 $18,296 $10,281 1/31/20 $10,108 $18,315 $10,196 2/29/20 $9,192 $16,807 $9,254 3/31/20 $8,060 $14,731 $8,120 4/30/20 $9,374 $16,620 $9,447 5/31/20 $9,640 $17,411 $9,726 6/30/20 $9,635 $17,758 $9,717 7/31/20 $9,537 $18,759 $9,618 8/31/20 $9,901 $20,107 $9,989 9/30/20 $9,726 $19,343 $9,821 10/31/20 $9,885 $18,829 $9,975 11/30/20 $10,710 $20,890 $10,818 12/31/20 $11,662 $21,693 $11,781 1/31/21 $11,627 $21,474 $11,752 2/28/21 $11,956 $22,066 $12,084 3/31/21 $11,296 $23,033 $11,401 4/30/21 $11,052 $24,262 $11,172 5/31/21 $11,341 $24,431 $11,463 6/30/21 $11,633 $25,002 $11,769 7/31/21 $11,326 $25,596 $11,458 8/31/21 $10,901 $26,374 $11,037 9/30/21 $10,679 $25,147 $10,807 10/31/21 $10,799 $26,909 $10,930 11/30/21 $10,321 $26,723 $10,438 12/31/21 $10,433 $27,920 $10,556 1/31/22 $9,853 $26,475 $9,967 2/28/22 $9,802 $25,683 $9,912 3/31/22 $10,276 $26,636 $10,389 4/30/22 $9,384 $24,314 $9,480 5/31/22 $9,536 $24,358 $9,636 6/30/22 $9,582 $22,348 $9,675 7/31/22 $9,767 $24,408 $9,863 8/31/22 $9,468 $23,413 $9,553 9/30/22 $9,180 $21,256 $9,250 10/31/22 $9,675 $22,977 $9,740 11/30/22 $9,824 $24,261 $9,894 12/31/22 $9,416 $22,864 $9,478 1/31/23 $10,010 $24,300 $10,072 2/28/23 $9,475 $23,707 $9,539 3/31/23 $9,453 $24,578 $9,517 4/30/23 $9,692 $24,961 $9,751 5/31/23 $9,096 $25,070 $9,149 6/30/23 $9,484 $26,726 $9,545 7/31/23 $10,109 $27,585 $10,174 8/31/23 $10,107 $27,146 $10,174 9/30/23 $9,220 $25,852 $9,278 10/31/23 $8,311 $25,308 $8,362 11/30/23 $8,582 $27,619 $8,627 12/31/23 $9,688 $28,874 $9,740 1/31/24 $9,783 $29,359 $9,836 2/29/24 $10,349 $30,927 $10,409 3/31/24 $10,078 $31,922 $10,138 4/30/24 $9,307 $30,619 $9,357 5/31/24 $9,457 $32,138 $9,506 6/30/24 $9,345 $33,292 $9,399 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years XPH (1.46%) 1.15% (0.67%) S&P 500 Index 24.56% 15.05% 12.86% S&P Pharmaceuticals Select Industry Index (1.52%) 1.11% (0.62%) | ||||||||
| AssetsNet | $ 195,148,111 | $ 195,148,111 | $ 195,148,111 | $ 195,148,111 | $ 195,148,111 | $ 195,148,111 | $ 195,148,111 | $ 195,148,111 | $ 195,148,111 |
| Holdings Count | Holding | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 45 |
| Advisory Fees Paid, Amount | $ 722,805 | ||||||||
| InvestmentCompanyPortfolioTurnover | 61% | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $195,148,111 # of Portfolio Holdings 45 Portfolio Turnover Rate 61% Total Advisory Fees Paid $722,805 | ||||||||
| Holdings [Text Block] | Top Industry Industry % Value of Total Net Assets Pharmaceuticals 99.9% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets Axsome Therapeutics, Inc. 4.3% Viatris, Inc. 4.1% Eli Lilly & Co. 4.0% Zoetis, Inc. 4.0% Pfizer, Inc. 4.0% Organon & Co. 4.0% Catalent, Inc. 4.0% Intra-Cellular Therapies, Inc. 3.9% Bristol-Myers Squibb Co. 3.9% Johnson & Johnson 3.9% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000033538 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR S&P Retail ETF | ||||||||
| Trading Symbol | XRT | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR S&P Retail ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C259"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR S&P Retail ETF $38 0.35% | ||||||||
| Expenses Paid, Amount | $ 38 | ||||||||
| Expense Ratio, Percent | 0.35% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Performance of the Fund for the reporting period was driven by strong labor markets, strong consumer spending, data slowing inflation, a pause in interest rate hikes, and the concerns over a recession that weighted on the minds of many consumers and investors. During the fiscal year ended June 30, 2024, the Fund’s use of their current investment strategies did not cause the Fund’s performance to materially deviate from the manager’s expectations considering the uncertainty of the markets. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C264"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | XRT S&P 500 Index S&P Retail Select Industry Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $9,663 $9,838 $9,666 8/31/14 $10,240 $10,245 $10,251 9/30/14 $9,884 $10,065 $9,891 10/31/14 $10,212 $10,311 $10,223 11/30/14 $10,891 $10,581 $10,905 12/31/14 $11,108 $10,557 $11,127 1/31/15 $10,750 $10,267 $10,767 2/28/15 $11,418 $10,860 $11,437 3/31/15 $11,761 $10,725 $11,788 4/30/15 $11,237 $10,801 $11,267 5/31/15 $11,355 $10,942 $11,385 6/30/15 $11,484 $10,737 $11,517 7/31/15 $11,447 $10,944 $11,479 8/31/15 $10,888 $10,285 $10,926 9/30/15 $10,349 $10,003 $10,377 10/31/15 $10,701 $10,813 $10,739 11/30/15 $10,391 $10,849 $10,423 12/31/15 $10,133 $10,653 $10,168 1/31/16 $9,604 $10,080 $9,643 2/29/16 $10,138 $10,077 $10,178 3/31/16 $10,850 $10,780 $10,887 4/30/16 $10,394 $10,838 $10,436 5/31/16 $9,941 $11,027 $9,976 6/30/16 $9,896 $11,053 $9,926 7/31/16 $10,630 $11,474 $10,668 8/31/16 $10,481 $11,489 $10,520 9/30/16 $10,306 $11,498 $10,341 10/31/16 $9,989 $11,274 $10,020 11/30/16 $10,803 $11,718 $10,844 12/31/16 $10,471 $11,938 $10,507 1/31/17 $10,260 $12,178 $10,298 2/28/17 $10,200 $12,650 $10,245 3/31/17 $10,058 $12,657 $10,106 4/30/17 $10,231 $12,791 $10,273 5/31/17 $9,697 $12,955 $9,734 6/30/17 $9,736 $13,046 $9,769 7/31/17 $9,838 $13,304 $9,868 8/31/17 $9,374 $13,345 $9,403 9/30/17 $10,041 $13,630 $10,078 10/31/17 $9,491 $13,942 $9,527 11/30/17 $10,505 $14,374 $10,547 12/31/17 $10,898 $14,532 $10,944 1/31/18 $11,394 $15,317 $11,439 2/28/18 $10,919 $14,764 $10,965 3/31/18 $10,720 $14,426 $10,766 4/30/18 $10,933 $14,499 $10,979 5/31/18 $11,214 $14,869 $11,267 6/30/18 $11,781 $14,945 $11,850 7/31/18 $12,042 $15,461 $12,106 8/31/18 $12,632 $15,995 $12,701 9/30/18 $12,433 $16,067 $12,509 10/31/18 $11,485 $14,939 $11,552 11/30/18 $11,286 $15,237 $11,343 12/31/18 $10,024 $13,845 $10,082 1/31/19 $10,802 $15,032 $10,868 2/28/19 $11,215 $15,555 $11,285 3/31/19 $11,041 $15,829 $11,110 4/30/19 $11,209 $16,483 $11,283 5/31/19 $9,817 $15,441 $9,880 6/30/19 $10,451 $16,537 $10,522 7/31/19 $10,501 $16,789 $10,572 8/31/19 $9,794 $16,480 $9,859 9/30/19 $10,507 $16,767 $10,574 10/31/19 $10,667 $17,132 $10,735 11/30/19 $11,058 $17,785 $11,129 12/31/19 $11,443 $18,296 $11,490 1/31/20 $10,703 $18,315 $10,748 2/29/20 $10,027 $16,807 $10,055 3/31/20 $7,441 $14,731 $7,466 4/30/20 $9,168 $16,620 $9,202 5/31/20 $10,198 $17,411 $10,232 6/30/20 $10,740 $17,758 $10,769 7/31/20 $11,871 $18,759 $11,899 8/31/20 $12,982 $20,107 $13,027 9/30/20 $12,467 $19,343 $12,507 10/31/20 $12,533 $18,829 $12,557 11/30/20 $15,107 $20,890 $15,149 12/31/20 $16,215 $21,693 $16,274 1/31/21 $22,193 $21,474 $22,208 2/28/21 $19,988 $22,066 $20,065 3/31/21 $22,509 $23,033 $22,578 4/30/21 $23,466 $24,262 $23,544 5/31/21 $23,617 $24,431 $23,702 6/30/21 $24,583 $25,002 $24,686 7/31/21 $24,115 $25,596 $24,217 8/31/21 $24,271 $26,374 $24,387 9/30/21 $22,902 $25,147 $23,012 10/31/21 $23,884 $26,909 $24,006 11/30/21 $23,784 $26,723 $23,925 12/31/21 $23,136 $27,920 $23,267 1/31/22 $20,928 $26,475 $21,048 2/28/22 $19,769 $25,683 $19,895 3/31/22 $19,356 $26,636 $19,481 4/30/22 $18,008 $24,314 $18,116 5/31/22 $16,952 $24,358 $17,067 6/30/22 $15,001 $22,348 $15,080 7/31/22 $16,385 $24,408 $16,476 8/31/22 $16,342 $23,413 $16,424 9/30/22 $14,638 $21,256 $14,706 10/31/22 $16,259 $22,977 $16,349 11/30/22 $17,449 $24,261 $17,546 12/31/22 $15,808 $22,864 $15,887 1/31/23 $18,354 $24,300 $18,458 2/28/23 $17,384 $23,707 $17,470 3/31/23 $16,642 $24,578 $16,711 4/30/23 $16,127 $24,961 $16,168 5/31/23 $14,924 $25,070 $14,962 6/30/23 $16,811 $26,726 $16,866 7/31/23 $17,875 $27,585 $17,930 8/31/23 $16,959 $27,146 $17,020 9/30/23 $16,093 $25,852 $16,150 10/31/23 $15,520 $25,308 $15,577 11/30/23 $17,088 $27,619 $17,155 12/31/23 $19,219 $28,874 $19,308 1/31/24 $18,225 $29,359 $18,313 2/29/24 $20,314 $30,927 $20,432 3/31/24 $21,024 $31,922 $21,141 4/30/24 $19,123 $30,619 $19,220 5/31/24 $20,619 $32,138 $20,732 6/30/24 $20,075 $33,292 $20,196 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years XRT 19.39% 13.94% 7.22% S&P 500 Index 24.56% 15.05% 12.86% S&P Retail Select Industry Index 19.76% 13.93% 7.28% | ||||||||
| AssetsNet | $ 356,458,087 | $ 356,458,087 | $ 356,458,087 | $ 356,458,087 | $ 356,458,087 | $ 356,458,087 | $ 356,458,087 | $ 356,458,087 | $ 356,458,087 |
| Holdings Count | Holding | 80 | 80 | 80 | 80 | 80 | 80 | 80 | 80 | 80 |
| Advisory Fees Paid, Amount | $ 1,537,607 | ||||||||
| InvestmentCompanyPortfolioTurnover | 34% | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $356,458,087 # of Portfolio Holdings 80 Portfolio Turnover Rate 34% Total Advisory Fees Paid $1,537,607 | ||||||||
| Holdings [Text Block] | Top Industry Industry % Value of Total Net Assets Automotive Retail 21.6% Other Specialty Retail 21.3% Apparel Retail 21.0% Broadline Retail 12.9% Consumer Staples Merchandise Retail 9.6% Food Retail 8.6% Computer & Electronics Retail 3.8% Drug Retail 1.1% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets Carvana Co. 1.7% Chewy, Inc., A 1.7% Ollie's Bargain Outlet Holdings, Inc. 1.5% Sprouts Farmers Market, Inc. 1.5% Grocery Outlet Holding Corp. 1.4% Kohl's Corp. 1.4% Dillard's, Inc., A 1.4% Amazon.com, Inc. 1.4% Burlington Stores, Inc. 1.4% Dollar General Corp. 1.4% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000027708 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR S&P Semiconductor ETF | ||||||||
| Trading Symbol | XSD | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR S&P Semiconductor ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C283"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR S&P Semiconductor ETF $37 0.35% | ||||||||
| Expenses Paid, Amount | $ 37 | ||||||||
| Expense Ratio, Percent | 0.35% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? U.S. Economic indicators from the U.S. remained relatively strong over the Q3 2023. While investors began the quarter with hopes that the rate hikes would soon end and cuts would begin, that probability ended by the end of the quarter. U.S. stocks rallied in Q4 2023, supported by prospects of rate cuts in 2024. 2023 was a memorable year for A.I., which also benefited the semiconductor industry. Semiconductors have stood at the forefront of modern technology, driving the functionality of electronic devices across various industries. These tiny components played a vital role in powering everything from smartphones to cloud computing servers to Artificial Intelligence (A.I.). U.S. equities rallied for a second straight quarter in Q1 2024. The A.I. theme was a key tailwinds in Q1 2024. U.S. equity indices were mixed in Q2 2024, with a tough start to the quarter in April. Semiconductor stocks have continued to be standout performers in 2024, with investor appetite for A.I. stocks remaining elevated as A.I. chip leader NVIDIA continues its streak of high growth. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C288"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | XSD S&P 500 Index S&P Semiconductor Select Industry Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $9,281 $9,838 $9,277 8/31/14 $10,264 $10,245 $10,262 9/30/14 $9,788 $10,065 $9,788 10/31/14 $9,609 $10,311 $9,611 11/30/14 $10,094 $10,581 $10,097 12/31/14 $10,638 $10,557 $10,655 1/31/15 $10,603 $10,267 $10,602 2/28/15 $11,740 $10,860 $11,746 3/31/15 $11,702 $10,725 $11,715 4/30/15 $11,317 $10,801 $11,331 5/31/15 $12,300 $10,942 $12,318 6/30/15 $11,526 $10,737 $11,545 7/31/15 $10,638 $10,944 $10,657 8/31/15 $10,263 $10,285 $10,287 9/30/15 $10,116 $10,003 $10,140 10/31/15 $11,390 $10,813 $11,421 11/30/15 $12,105 $10,849 $12,141 12/31/15 $11,736 $10,653 $11,776 1/31/16 $11,119 $10,080 $11,149 2/29/16 $11,172 $10,077 $11,212 3/31/16 $11,973 $10,780 $12,018 4/30/16 $11,392 $10,838 $11,439 5/31/16 $12,218 $11,027 $12,268 6/30/16 $11,989 $11,053 $12,043 7/31/16 $13,442 $11,474 $13,514 8/31/16 $13,868 $11,489 $13,944 9/30/16 $14,358 $11,498 $14,439 10/31/16 $13,756 $11,274 $13,834 11/30/16 $14,828 $11,718 $14,922 12/31/16 $15,174 $11,938 $15,275 1/31/17 $15,753 $12,178 $15,863 2/28/17 $16,162 $12,650 $16,285 3/31/17 $16,343 $12,657 $16,470 4/30/17 $16,083 $12,791 $16,205 5/31/17 $17,479 $12,955 $17,618 6/30/17 $16,737 $13,046 $16,880 7/31/17 $17,640 $13,304 $17,793 8/31/17 $17,333 $13,345 $17,485 9/30/17 $17,824 $13,630 $17,978 10/31/17 $19,250 $13,942 $19,426 11/30/17 $19,340 $14,374 $19,523 12/31/17 $19,004 $14,532 $19,185 1/31/18 $19,988 $15,317 $20,188 2/28/18 $19,394 $14,764 $19,581 3/31/18 $19,095 $14,426 $19,277 4/30/18 $18,292 $14,499 $18,464 5/31/18 $20,386 $14,869 $20,572 6/30/18 $19,756 $14,945 $19,939 7/31/18 $20,357 $15,461 $20,531 8/31/18 $21,551 $15,995 $21,734 9/30/18 $20,814 $16,067 $20,985 10/31/18 $18,453 $14,939 $18,607 11/30/18 $19,399 $15,237 $19,557 12/31/18 $17,798 $13,845 $17,953 1/31/19 $19,716 $15,032 $19,886 2/28/19 $21,661 $15,555 $21,849 3/31/19 $21,623 $15,829 $21,819 4/30/19 $23,850 $16,483 $24,085 5/31/19 $20,273 $15,441 $20,470 6/30/19 $23,302 $16,537 $23,525 7/31/19 $25,283 $16,789 $25,543 8/31/19 $24,286 $16,480 $24,558 9/30/19 $24,828 $16,767 $25,104 10/31/19 $25,937 $17,132 $26,223 11/30/19 $27,023 $17,785 $27,327 12/31/19 $29,312 $18,296 $29,664 1/31/20 $28,247 $18,315 $28,594 2/29/20 $26,441 $16,807 $26,739 3/31/20 $23,267 $14,731 $23,555 4/30/20 $27,600 $16,620 $27,967 5/31/20 $29,707 $17,411 $30,134 6/30/20 $31,068 $17,758 $31,499 7/31/20 $33,812 $18,759 $34,278 8/31/20 $35,133 $20,107 $35,646 9/30/20 $34,886 $19,343 $35,401 10/31/20 $36,815 $18,829 $37,339 11/30/20 $43,721 $20,890 $44,354 12/31/20 $47,432 $21,693 $48,161 1/31/21 $49,863 $21,474 $50,699 2/28/21 $51,738 $22,066 $52,625 3/31/21 $50,792 $23,033 $51,622 4/30/21 $49,137 $24,262 $49,982 5/31/21 $49,670 $24,431 $50,524 6/30/21 $53,449 $25,002 $54,405 7/31/21 $53,085 $25,596 $54,045 8/31/21 $56,287 $26,374 $57,337 9/30/21 $55,018 $25,147 $56,020 10/31/21 $61,520 $26,909 $62,670 11/30/21 $66,199 $26,723 $67,437 12/31/21 $67,602 $27,920 $68,903 1/31/22 $56,901 $26,475 $58,023 2/28/22 $57,452 $25,683 $58,593 3/31/22 $57,674 $26,636 $58,870 4/30/22 $47,869 $24,314 $48,808 5/31/22 $50,834 $24,358 $51,858 6/30/22 $42,308 $22,348 $43,126 7/31/22 $50,841 $24,408 $51,849 8/31/22 $47,646 $23,413 $48,620 9/30/22 $42,436 $21,256 $43,291 10/31/22 $43,777 $22,977 $44,689 11/30/22 $51,887 $24,261 $52,975 12/31/22 $46,737 $22,864 $47,738 1/31/23 $54,804 $24,300 $55,983 2/28/23 $55,386 $23,707 $56,582 3/31/23 $58,319 $24,578 $59,611 4/30/23 $49,867 $24,961 $50,974 5/31/23 $56,965 $25,070 $58,272 6/30/23 $61,913 $26,726 $63,352 7/31/23 $64,109 $27,585 $65,583 8/31/23 $59,656 $27,146 $61,079 9/30/23 $54,877 $25,852 $56,184 10/31/23 $47,539 $25,308 $48,668 11/30/23 $55,842 $27,619 $57,201 12/31/23 $63,034 $28,874 $64,605 1/31/24 $59,031 $29,359 $60,522 2/29/24 $62,651 $30,927 $64,306 3/31/24 $65,123 $31,922 $66,846 4/30/24 $62,936 $30,619 $64,597 5/31/24 $69,007 $32,138 $70,796 6/30/24 $69,396 $33,292 $71,285 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years XSD 12.11% 24.41% 21.38% S&P 500 Index 24.56% 15.05% 12.86% S&P Semiconductor Select Industry Index 12.52% 24.83% 21.70% | ||||||||
| AssetsNet | $ 1,534,252,726 | $ 1,534,252,726 | $ 1,534,252,726 | $ 1,534,252,726 | $ 1,534,252,726 | $ 1,534,252,726 | $ 1,534,252,726 | $ 1,534,252,726 | $ 1,534,252,726 |
| Holdings Count | Holding | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 |
| Advisory Fees Paid, Amount | $ 5,081,154 | ||||||||
| InvestmentCompanyPortfolioTurnover | 30% | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $1,534,252,726 # of Portfolio Holdings 41 Portfolio Turnover Rate 30% Total Advisory Fees Paid $5,081,154 | ||||||||
| Holdings [Text Block] | Top Industry Industry % Value of Total Net Assets Semiconductors 99.9% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets Credo Technology Group Holding Ltd. 3.5% MACOM Technology Solutions Holdings, Inc. 3.3% Impinj, Inc. 3.3% Universal Display Corp. 3.3% Cirrus Logic, Inc. 3.3% Qorvo, Inc. 3.2% Rambus, Inc. 3.2% Skyworks Solutions, Inc. 3.2% Monolithic Power Systems, Inc. 3.2% Intel Corp. 3.2% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000033545 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR S&P Software & Services ETF | ||||||||
| Trading Symbol | XSW | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR S&P Software & Services ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C307"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR S&P Software & Services ETF $37 0.35% | ||||||||
| Expenses Paid, Amount | $ 37 | ||||||||
| Expense Ratio, Percent | 0.35% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Most of the Fund’s outperformance in the fiscal year occurred in the 4th quarter of 2023, A.I. theme was one of the key tailwinds helped to drive the momentum, some companies benefited significantly from A.I. advancements and expectation on revenue growth. In the second half of the period under review, the Fund continue to post positive returns as market continued to pare back rate cut expectations by the U.S. Federal Reserve (the “Fed”), as macroeconomic data continued to highlight an exceptionally strong U.S. economy. U.S. equities rallied for a second straight quarter in 1st quarter of 2024. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C312"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | XSW S&P 500 Index S&P Software & Services Select Industry Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $9,673 $9,838 $9,670 8/31/14 $10,034 $10,245 $10,035 9/30/14 $9,727 $10,065 $9,719 10/31/14 $10,296 $10,311 $10,299 11/30/14 $10,556 $10,581 $10,560 12/31/14 $10,651 $10,557 $10,662 1/31/15 $10,266 $10,267 $10,277 2/28/15 $11,239 $10,860 $11,251 3/31/15 $11,234 $10,725 $11,250 4/30/15 $11,322 $10,801 $11,340 5/31/15 $11,574 $10,942 $11,593 6/30/15 $11,602 $10,737 $11,624 7/31/15 $11,632 $10,944 $11,653 8/31/15 $10,906 $10,285 $10,934 9/30/15 $10,638 $10,003 $10,674 10/31/15 $11,416 $10,813 $11,445 11/30/15 $11,883 $10,849 $11,916 12/31/15 $11,439 $10,653 $11,475 1/31/16 $10,251 $10,080 $10,281 2/29/16 $10,194 $10,077 $10,232 3/31/16 $10,891 $10,780 $10,931 4/30/16 $11,099 $10,838 $11,144 5/31/16 $11,621 $11,027 $11,669 6/30/16 $11,544 $11,053 $11,596 7/31/16 $12,283 $11,474 $12,344 8/31/16 $12,489 $11,489 $12,552 9/30/16 $12,702 $11,498 $12,766 10/31/16 $12,292 $11,274 $12,354 11/30/16 $12,661 $11,718 $12,713 12/31/16 $12,522 $11,938 $12,575 1/31/17 $12,920 $12,178 $12,982 2/28/17 $13,354 $12,650 $13,428 3/31/17 $13,523 $12,657 $13,591 4/30/17 $13,699 $12,791 $13,776 5/31/17 $14,364 $12,955 $14,446 6/30/17 $14,388 $13,046 $14,484 7/31/17 $14,720 $13,304 $14,819 8/31/17 $14,896 $13,345 $15,008 9/30/17 $15,135 $13,630 $15,253 10/31/17 $15,793 $13,942 $15,918 11/30/17 $16,040 $14,374 $16,174 12/31/17 $15,976 $14,532 $16,105 1/31/18 $17,195 $15,317 $17,335 2/28/18 $17,382 $14,764 $17,517 3/31/18 $17,413 $14,426 $17,566 4/30/18 $17,869 $14,499 $18,012 5/31/18 $18,646 $14,869 $18,803 6/30/18 $18,712 $14,945 $18,869 7/31/18 $18,958 $15,461 $19,166 8/31/18 $21,045 $15,995 $21,249 9/30/18 $20,985 $16,067 $21,204 10/31/18 $18,588 $14,939 $18,789 11/30/18 $18,754 $15,237 $18,965 12/31/18 $17,306 $13,845 $17,570 1/31/19 $19,678 $15,032 $19,892 2/28/19 $21,423 $15,555 $21,649 3/31/19 $21,845 $15,829 $22,090 4/30/19 $22,827 $16,483 $23,092 5/31/19 $21,381 $15,441 $21,624 6/30/19 $22,272 $16,537 $22,556 7/31/19 $22,967 $16,789 $23,235 8/31/19 $22,278 $16,480 $22,571 9/30/19 $21,614 $16,767 $21,887 10/31/19 $22,177 $17,132 $22,449 11/30/19 $23,799 $17,785 $24,110 12/31/19 $23,563 $18,296 $23,883 1/31/20 $24,351 $18,315 $24,681 2/29/20 $22,940 $16,807 $23,259 3/31/20 $19,072 $14,731 $19,377 4/30/20 $22,005 $16,620 $22,346 5/31/20 $24,856 $17,411 $25,234 6/30/20 $25,921 $17,758 $26,335 7/31/20 $27,069 $18,759 $27,502 8/31/20 $28,917 $20,107 $29,384 9/30/20 $27,775 $19,343 $28,243 10/31/20 $27,471 $18,829 $27,905 11/30/20 $32,516 $20,890 $33,061 12/31/20 $35,842 $21,693 $36,466 1/31/21 $35,839 $21,474 $36,478 2/28/21 $37,364 $22,066 $38,052 3/31/21 $36,642 $23,033 $37,277 4/30/21 $37,982 $24,262 $38,682 5/31/21 $37,423 $24,431 $38,126 6/30/21 $39,912 $25,002 $40,665 7/31/21 $39,917 $25,596 $40,683 8/31/21 $41,526 $26,374 $42,331 9/30/21 $39,968 $25,147 $40,764 10/31/21 $42,219 $26,909 $43,063 11/30/21 $38,624 $26,723 $39,392 12/31/21 $38,572 $27,920 $39,363 1/31/22 $34,717 $26,475 $35,463 2/28/22 $33,654 $25,683 $34,367 3/31/22 $34,319 $26,636 $35,014 4/30/22 $30,436 $24,314 $31,065 5/31/22 $28,427 $24,358 $29,029 6/30/22 $25,878 $22,348 $26,423 7/31/22 $28,104 $24,408 $28,713 8/31/22 $27,364 $23,413 $27,954 9/30/22 $24,945 $21,256 $25,469 10/31/22 $26,763 $22,977 $27,343 11/30/22 $26,246 $24,261 $26,838 12/31/22 $25,343 $22,864 $25,900 1/31/23 $28,421 $24,300 $29,057 2/28/23 $28,008 $23,707 $28,631 3/31/23 $28,728 $24,578 $29,384 4/30/23 $27,168 $24,961 $27,778 5/31/23 $29,807 $25,070 $30,486 6/30/23 $31,110 $26,726 $31,824 7/31/23 $33,264 $27,585 $34,016 8/31/23 $31,463 $27,146 $32,192 9/30/23 $29,636 $25,852 $30,329 10/31/23 $27,959 $25,308 $28,615 11/30/23 $31,872 $27,619 $32,566 12/31/23 $35,222 $28,874 $35,986 1/31/24 $34,497 $29,359 $35,269 2/29/24 $36,142 $30,927 $36,981 3/31/24 $36,377 $31,922 $37,245 4/30/24 $33,870 $30,619 $34,640 5/31/24 $33,994 $32,138 $34,769 6/30/24 $35,324 $33,292 $36,144 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years XSW 13.53% 9.65% 13.45% S&P 500 Index 24.56% 15.05% 12.86% S&P Software & Services Select Industry Index 13.57% 9.90% 13.71% | ||||||||
| AssetsNet | $ 361,083,564 | $ 361,083,564 | $ 361,083,564 | $ 361,083,564 | $ 361,083,564 | $ 361,083,564 | $ 361,083,564 | $ 361,083,564 | $ 361,083,564 |
| Holdings Count | Holding | 139 | 139 | 139 | 139 | 139 | 139 | 139 | 139 | 139 |
| Advisory Fees Paid, Amount | $ 1,191,270 | ||||||||
| InvestmentCompanyPortfolioTurnover | 41% | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $361,083,564 # of Portfolio Holdings 139 Portfolio Turnover Rate 41% Total Advisory Fees Paid $1,191,270 | ||||||||
| Holdings [Text Block] | Top Industry Industry % Value of Total Net Assets Application Software 69.5% Systems Software 20.0% IT Consulting & Other Services 6.8% Interactive Home Entertainment 2.9% Human Resource & Employment Services 0.7% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets Samsara, Inc., A 0.9% Rapid7, Inc. 0.8% AvePoint, Inc. 0.8% Agilysys, Inc. 0.8% SentinelOne, Inc., A 0.8% Terawulf, Inc. 0.8% Asana, Inc., A 0.8% Matterport, Inc. 0.8% Varonis Systems, Inc. 0.8% Gitlab, Inc., A 0.8% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000033539 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR S&P Telecom ETF | ||||||||
| Trading Symbol | XTL | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR S&P Telecom ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C331"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR S&P Telecom ETF $35 0.35% | ||||||||
| Expenses Paid, Amount | $ 35 | ||||||||
| Expense Ratio, Percent | 0.35% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? High capital expenditures for 5G infrastructure upgrades, volatile raw material prices, high inventory levels and geopolitical conflicts amid a challenging macroeconomic environment have decreased the industries profitability. During the reporting period, the Fund’s use of their current investment strategies did not cause the Fund’s performance to materially deviate from the manager’s expectations considering the uncertainty of the markets. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C336"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | XTL S&P 500 Index S&P Telecom Select Industry Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $9,794 $9,838 $9,788 8/31/14 $10,088 $10,245 $10,087 9/30/14 $9,726 $10,065 $9,712 10/31/14 $10,033 $10,311 $10,035 11/30/14 $10,181 $10,581 $10,181 12/31/14 $10,202 $10,557 $10,210 1/31/15 $9,802 $10,267 $9,810 2/28/15 $10,687 $10,860 $10,693 3/31/15 $10,358 $10,725 $10,361 4/30/15 $10,504 $10,801 $10,511 5/31/15 $10,617 $10,942 $10,639 6/30/15 $10,232 $10,737 $10,244 7/31/15 $10,307 $10,944 $10,327 8/31/15 $9,887 $10,285 $9,912 9/30/15 $9,454 $10,003 $9,470 10/31/15 $10,272 $10,813 $10,289 11/30/15 $10,313 $10,849 $10,338 12/31/15 $10,032 $10,653 $10,054 1/31/16 $9,115 $10,080 $9,129 2/29/16 $9,800 $10,077 $9,827 3/31/16 $10,281 $10,780 $10,305 4/30/16 $10,247 $10,838 $10,253 5/31/16 $10,463 $11,027 $10,477 6/30/16 $10,539 $11,053 $10,562 7/31/16 $11,205 $11,474 $11,232 8/31/16 $11,415 $11,489 $11,440 9/30/16 $11,897 $11,498 $11,924 10/31/16 $11,493 $11,274 $11,521 11/30/16 $12,254 $11,718 $12,285 12/31/16 $12,605 $11,938 $12,641 1/31/17 $12,898 $12,178 $12,950 2/28/17 $12,902 $12,650 $12,962 3/31/17 $12,919 $12,657 $12,986 4/30/17 $12,892 $12,791 $12,960 5/31/17 $12,887 $12,955 $12,937 6/30/17 $12,879 $13,046 $12,930 7/31/17 $13,163 $13,304 $13,187 8/31/17 $12,850 $13,345 $12,899 9/30/17 $12,803 $13,630 $12,833 10/31/17 $12,729 $13,942 $12,746 11/30/17 $12,988 $14,374 $12,989 12/31/17 $12,649 $14,532 $12,630 1/31/18 $12,982 $15,317 $12,941 2/28/18 $12,783 $14,764 $12,743 3/31/18 $12,855 $14,426 $12,817 4/30/18 $13,012 $14,499 $12,940 5/31/18 $13,141 $14,869 $13,027 6/30/18 $13,532 $14,945 $13,448 7/31/18 $13,356 $15,461 $13,249 8/31/18 $14,427 $15,995 $14,331 9/30/18 $14,337 $16,067 $14,261 10/31/18 $13,181 $14,939 $13,109 11/30/18 $13,303 $15,237 $13,235 12/31/18 $11,879 $13,845 $11,829 1/31/19 $12,905 $15,032 $12,853 2/28/19 $13,602 $15,555 $13,554 3/31/19 $13,354 $15,829 $13,309 4/30/19 $13,815 $16,483 $13,767 5/31/19 $12,321 $15,441 $12,276 6/30/19 $12,822 $16,537 $12,779 7/31/19 $13,473 $16,789 $13,427 8/31/19 $12,664 $16,480 $12,628 9/30/19 $12,737 $16,767 $12,701 10/31/19 $12,868 $17,132 $12,829 11/30/19 $13,116 $17,785 $13,090 12/31/19 $13,321 $18,296 $13,294 1/31/20 $13,043 $18,315 $13,020 2/29/20 $12,583 $16,807 $12,553 3/31/20 $11,335 $14,731 $11,321 4/30/20 $12,743 $16,620 $12,713 5/31/20 $13,256 $17,411 $13,258 6/30/20 $13,332 $17,758 $13,330 7/31/20 $14,490 $18,759 $14,479 8/31/20 $14,213 $20,107 $14,201 9/30/20 $12,944 $19,343 $12,925 10/31/20 $13,085 $18,829 $13,058 11/30/20 $15,115 $20,890 $15,097 12/31/20 $16,330 $21,693 $16,301 1/31/21 $17,674 $21,474 $17,653 2/28/21 $17,740 $22,066 $17,730 3/31/21 $18,073 $23,033 $18,056 4/30/21 $18,414 $24,262 $18,417 5/31/21 $19,234 $24,431 $19,240 6/30/21 $19,731 $25,002 $19,755 7/31/21 $19,307 $25,596 $19,335 8/31/21 $19,549 $26,374 $19,578 9/30/21 $18,533 $25,147 $18,557 10/31/21 $18,625 $26,909 $18,658 11/30/21 $18,556 $26,723 $18,595 12/31/21 $19,806 $27,920 $19,856 1/31/22 $17,799 $26,475 $17,848 2/28/22 $17,490 $25,683 $17,539 3/31/22 $18,086 $26,636 $18,149 4/30/22 $16,012 $24,314 $16,059 5/31/22 $16,395 $24,358 $16,452 6/30/22 $15,229 $22,348 $15,277 7/31/22 $17,056 $24,408 $17,123 8/31/22 $16,905 $23,413 $16,969 9/30/22 $15,082 $21,256 $15,130 10/31/22 $17,243 $22,977 $17,307 11/30/22 $17,170 $24,261 $17,247 12/31/22 $16,003 $22,864 $16,075 1/31/23 $17,032 $24,300 $17,111 2/28/23 $15,981 $23,707 $16,070 3/31/23 $15,933 $24,578 $16,025 4/30/23 $14,757 $24,961 $14,837 5/31/23 $14,351 $25,070 $14,431 6/30/23 $15,298 $26,726 $15,388 7/31/23 $14,483 $27,585 $14,567 8/31/23 $15,290 $27,146 $15,385 9/30/23 $14,031 $25,852 $14,116 10/31/23 $13,058 $25,308 $13,146 11/30/23 $13,908 $27,619 $13,999 12/31/23 $15,837 $28,874 $15,943 1/31/24 $15,186 $29,359 $15,291 2/29/24 $14,892 $30,927 $15,005 3/31/24 $14,726 $31,922 $14,847 4/30/24 $13,503 $30,619 $13,607 5/31/24 $15,218 $32,138 $15,356 6/30/24 $15,449 $33,292 $15,592 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years XTL 1.04% 3.81% 4.45% S&P 500 Index 24.56% 15.05% 12.86% S&P Telecom Select Industry Index 1.30% 4.06% 4.54% | ||||||||
| AssetsNet | $ 60,268,423 | $ 60,268,423 | $ 60,268,423 | $ 60,268,423 | $ 60,268,423 | $ 60,268,423 | $ 60,268,423 | $ 60,268,423 | $ 60,268,423 |
| Holdings Count | Holding | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 |
| Advisory Fees Paid, Amount | $ 199,339 | ||||||||
| InvestmentCompanyPortfolioTurnover | 50% | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $60,268,423 # of Portfolio Holdings 41 Portfolio Turnover Rate 50% Total Advisory Fees Paid $199,339 | ||||||||
| Holdings [Text Block] | Top Industry Industry % Value of Total Net Assets Communications Equipment 55.6% Alternative Carriers 20.5% Integrated Telecommunication Services 14.7% Wireless Telecommunication Services 9.1% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets AT&T, Inc. 4.7% Lumentum Holdings, Inc. 4.7% Arista Networks, Inc. 4.6% Cogent Communications Holdings, Inc. 4.6% Frontier Communications Parent, Inc. 4.6% Verizon Communications, Inc. 4.6% Cisco Systems, Inc. 4.5% Motorola Solutions, Inc. 4.5% Ciena Corp. 4.5% Juniper Networks, Inc. 4.5% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000033540 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR S&P Transportation ETF | ||||||||
| Trading Symbol | XTN | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR S&P Transportation ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C355"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR S&P Transportation ETF $34 0.35% | ||||||||
| Expenses Paid, Amount | $ 34 | ||||||||
| Expense Ratio, Percent | 0.35% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Fees, expenses, cash drag and cumulative effect contributed to the difference between the Fund’s performance and that of the Index. The transportation industry faced a challenging fiscal year. Supply for the transportation industry is down as demand with industrial production remaining low thanks to high inflation. Additionally, the industry has had to contend with rising expenses and low rates causing the industry to feel the economic crunch. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C360"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | XTN S&P 500 Index S&P Transportation Select Industry Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $9,725 $9,838 $9,731 8/31/14 $10,041 $10,245 $10,054 9/30/14 $9,923 $10,065 $9,937 10/31/14 $10,474 $10,311 $10,488 11/30/14 $11,381 $10,581 $11,398 12/31/14 $11,598 $10,557 $11,620 1/31/15 $10,730 $10,267 $10,757 2/28/15 $11,521 $10,860 $11,556 3/31/15 $11,385 $10,725 $11,419 4/30/15 $10,882 $10,801 $10,928 5/31/15 $10,651 $10,942 $10,694 6/30/15 $10,389 $10,737 $10,427 7/31/15 $10,639 $10,944 $10,683 8/31/15 $9,868 $10,285 $9,912 9/30/15 $9,386 $10,003 $9,434 10/31/15 $10,019 $10,813 $10,074 11/30/15 $9,992 $10,849 $10,042 12/31/15 $9,248 $10,653 $9,297 1/31/16 $8,570 $10,080 $8,619 2/29/16 $9,127 $10,077 $9,175 3/31/16 $9,930 $10,780 $9,987 4/30/16 $9,803 $10,838 $9,857 5/31/16 $9,690 $11,027 $9,754 6/30/16 $9,458 $11,053 $9,518 7/31/16 $10,102 $11,474 $10,172 8/31/16 $10,113 $11,489 $10,183 9/30/16 $10,269 $11,498 $10,342 10/31/16 $10,299 $11,274 $10,378 11/30/16 $11,687 $11,718 $11,777 12/31/16 $11,744 $11,938 $11,839 1/31/17 $11,846 $12,178 $11,942 2/28/17 $12,107 $12,650 $12,215 3/31/17 $11,529 $12,657 $11,637 4/30/17 $11,739 $12,791 $11,852 5/31/17 $11,460 $12,955 $11,575 6/30/17 $12,091 $13,046 $12,216 7/31/17 $11,853 $13,304 $11,977 8/31/17 $12,395 $13,345 $12,531 9/30/17 $13,132 $13,630 $13,272 10/31/17 $13,132 $13,942 $13,284 11/30/17 $13,852 $14,374 $14,013 12/31/17 $14,286 $14,532 $14,454 1/31/18 $14,665 $15,317 $14,849 2/28/18 $13,752 $14,764 $13,927 3/31/18 $13,773 $14,426 $13,956 4/30/18 $13,594 $14,499 $13,778 5/31/18 $14,173 $14,869 $14,363 6/30/18 $13,875 $14,945 $14,072 7/31/18 $14,412 $15,461 $14,623 8/31/18 $14,909 $15,995 $15,118 9/30/18 $14,804 $16,067 $15,012 10/31/18 $13,061 $14,939 $13,262 11/30/18 $14,041 $15,237 $14,259 12/31/18 $11,837 $13,845 $12,034 1/31/19 $13,271 $15,032 $13,481 2/28/19 $13,674 $15,555 $13,901 3/31/19 $13,388 $15,829 $13,613 4/30/19 $13,990 $16,483 $14,227 5/31/19 $12,480 $15,441 $12,690 6/30/19 $13,634 $16,537 $13,871 7/31/19 $14,026 $16,789 $14,281 8/31/19 $13,139 $16,480 $13,385 9/30/19 $13,627 $16,767 $13,880 10/31/19 $13,929 $17,132 $14,190 11/30/19 $14,407 $17,785 $14,678 12/31/19 $14,413 $18,296 $14,688 1/31/20 $14,078 $18,315 $14,363 2/29/20 $12,367 $16,807 $12,583 3/31/20 $9,829 $14,731 $10,012 4/30/20 $10,802 $16,620 $11,008 5/31/20 $11,717 $17,411 $11,944 6/30/20 $11,888 $17,758 $12,129 7/31/20 $12,261 $18,759 $12,505 8/31/20 $13,591 $20,107 $13,862 9/30/20 $13,092 $19,343 $13,357 10/31/20 $13,216 $18,829 $13,483 11/30/20 $15,692 $20,890 $16,018 12/31/20 $16,115 $21,693 $16,460 1/31/21 $15,739 $21,474 $16,087 2/28/21 $18,365 $22,066 $18,786 3/31/21 $19,916 $23,033 $20,360 4/30/21 $20,238 $24,262 $20,717 5/31/21 $20,711 $24,431 $21,200 6/30/21 $19,347 $25,002 $19,814 7/31/21 $18,906 $25,596 $19,370 8/31/21 $19,578 $26,374 $20,061 9/30/21 $19,729 $25,147 $20,218 10/31/21 $20,709 $26,909 $21,229 11/30/21 $20,599 $26,723 $21,126 12/31/21 $21,561 $27,920 $22,126 1/31/22 $19,603 $26,475 $20,126 2/28/22 $20,060 $25,683 $20,598 3/31/22 $20,388 $26,636 $20,940 4/30/22 $18,667 $24,314 $19,175 5/31/22 $17,969 $24,358 $18,459 6/30/22 $15,565 $22,348 $15,990 7/31/22 $17,619 $24,408 $18,110 8/31/22 $16,700 $23,413 $17,168 9/30/22 $14,645 $21,256 $15,055 10/31/22 $16,223 $22,977 $16,717 11/30/22 $17,205 $24,261 $17,691 12/31/22 $15,490 $22,864 $15,928 1/31/23 $17,825 $24,300 $18,339 2/28/23 $17,705 $23,707 $18,216 3/31/23 $16,745 $24,578 $17,234 4/30/23 $16,852 $24,961 $17,346 5/31/23 $16,630 $25,070 $17,116 6/30/23 $19,382 $26,726 $19,960 7/31/23 $20,406 $27,585 $21,024 8/31/23 $18,617 $27,146 $19,185 9/30/23 $17,401 $25,852 $17,929 10/31/23 $15,676 $25,308 $16,156 11/30/23 $17,329 $27,619 $17,862 12/31/23 $19,418 $28,874 $20,023 1/31/24 $18,271 $29,359 $18,849 2/29/24 $19,253 $30,927 $19,882 3/31/24 $19,754 $31,922 $20,398 4/30/24 $17,606 $30,619 $18,176 5/31/24 $17,997 $32,138 $18,582 6/30/24 $18,279 $33,292 $18,863 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years XTN (5.78%) 6.02% 6.22% S&P 500 Index 24.56% 15.05% 12.86% S&P Transportation Select Industry Index (5.51%) 6.34% 6.55% | ||||||||
| AssetsNet | $ 167,322,653 | $ 167,322,653 | $ 167,322,653 | $ 167,322,653 | $ 167,322,653 | $ 167,322,653 | $ 167,322,653 | $ 167,322,653 | $ 167,322,653 |
| Holdings Count | Holding | 46 | 46 | 46 | 46 | 46 | 46 | 46 | 46 | 46 |
| Advisory Fees Paid, Amount | $ 696,412 | ||||||||
| InvestmentCompanyPortfolioTurnover | 34% | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $167,322,653 # of Portfolio Holdings 46 Portfolio Turnover Rate 34% Total Advisory Fees Paid $696,412 | ||||||||
| Holdings [Text Block] | Top Industry Industry % Value of Total Net Assets Cargo Ground Transportation 30.6% Airlines 25.1% Air Freight & Logistics 18.0% Passenger Ground Transportation 9.3% Railroads 9.1% Marine 7.6% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets FedEx Corp. 3.2% JetBlue Airways Corp. 2.9% Matson, Inc. 2.9% SkyWest, Inc. 2.8% Knight-Swift Transportation Holdings, Inc. 2.8% CH Robinson Worldwide, Inc. 2.8% GXO Logistics, Inc. 2.8% Saia, Inc. 2.7% Joby Aviation, Inc. 2.7% Ryder System, Inc. 2.7% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000152674 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR MSCI USA StrategicFactors℠ ETF | ||||||||
| Trading Symbol | QUS | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR MSCI USA StrategicFactors℠ ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C379"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR MSCI USA StrategicFactors℠ ETF $17 0.15% | ||||||||
| Expenses Paid, Amount | $ 17 | ||||||||
| Expense Ratio, Percent | 0.15% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? The reporting period’s market environment was largely driven by news about inflation, economic growth and the impact either would have on the Fed and other central banks with regard to interest rate decisions. Alongside this macro story was the prospect of a burgeoning artificial intelligence boom, driving up the values of A.I.-related tech and semiconductor companies. And markets continued to be dominated by the so-called "Magnificent Seven", consisting of Alphabet Inc., Amazon.com Inc., Apple Inc., Meta Platforms Inc., Microsoft Corp., NVIDIA Corp. and Tesla Inc.. Compared to the S&P 500, which returned 24.56% during the reporting period, the Fund slightly underperformed. The Fund's strategy is to target stocks which exhibit quality factor characteristics, while at the same time tilting towards value and low volatility stocks. These tilts generally caused the Fund to underweight the A.I.-related tech and semiconductor stocks, as well as the Magnificent Seven. But as an offset to this underweighting, the Fund's targeting of high quality securities tended to push the weights of those stocks back up. However, the impact was not significant enough to undo the underweighting, resulting in net underperformance. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C384"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | QUS S&P 500 Index MSCI USA Factor Mix A-Series Capped Index 4/15/15 $10,000 $10,000 $10,000 4/30/15 $9,895 $9,904 $9,893 5/31/15 $10,022 $10,034 $10,010 6/30/15 $9,809 $9,845 $9,804 7/31/15 $10,057 $10,035 $10,055 8/31/15 $9,533 $9,431 $9,522 9/30/15 $9,400 $9,173 $9,392 10/31/15 $10,133 $9,915 $10,115 11/30/15 $10,152 $9,948 $10,131 12/31/15 $10,038 $9,769 $10,023 1/31/16 $9,622 $9,243 $9,633 2/29/16 $9,661 $9,241 $9,666 3/31/16 $10,285 $9,885 $10,296 4/30/16 $10,270 $9,938 $10,283 5/31/16 $10,413 $10,112 $10,429 6/30/16 $10,532 $10,135 $10,546 7/31/16 $10,873 $10,521 $10,891 8/31/16 $10,866 $10,535 $10,862 9/30/16 $10,854 $10,543 $10,855 10/31/16 $10,637 $10,338 $10,637 11/30/16 $10,976 $10,745 $10,982 12/31/16 $11,212 $10,947 $11,212 1/31/17 $11,355 $11,167 $11,369 2/28/17 $11,852 $11,599 $11,869 3/31/17 $11,853 $11,606 $11,876 4/30/17 $12,001 $11,729 $12,018 5/31/17 $12,170 $11,880 $12,197 6/30/17 $12,178 $11,963 $12,206 7/31/17 $12,411 $12,200 $12,426 8/31/17 $12,456 $12,237 $12,482 9/30/17 $12,689 $12,498 $12,717 10/31/17 $13,013 $12,784 $13,054 11/30/17 $13,458 $13,181 $13,487 12/31/17 $13,602 $13,326 $13,618 1/31/18 $14,239 $14,045 $14,278 2/28/18 $13,722 $13,538 $13,749 3/31/18 $13,485 $13,228 $13,526 4/30/18 $13,449 $13,296 $13,487 5/31/18 $13,707 $13,635 $13,751 6/30/18 $13,828 $13,704 $13,869 7/31/18 $14,324 $14,177 $14,375 8/31/18 $14,765 $14,667 $14,837 9/30/18 $14,856 $14,733 $14,938 10/31/18 $14,032 $13,699 $14,107 11/30/18 $14,336 $13,972 $14,428 12/31/18 $13,114 $12,696 $13,202 1/31/19 $14,126 $13,784 $14,198 2/28/19 $14,656 $14,264 $14,739 3/31/19 $14,967 $14,515 $15,056 4/30/19 $15,520 $15,115 $15,616 5/31/19 $14,706 $14,159 $14,793 6/30/19 $15,648 $15,164 $15,759 7/31/19 $15,964 $15,395 $16,073 8/31/19 $15,808 $15,112 $15,926 9/30/19 $16,113 $15,375 $16,225 10/31/19 $16,386 $15,710 $16,501 11/30/19 $16,905 $16,309 $17,024 12/31/19 $17,370 $16,777 $17,511 1/31/20 $17,413 $16,794 $17,548 2/29/20 $15,978 $15,412 $16,086 3/31/20 $14,023 $13,508 $14,126 4/30/20 $15,558 $15,240 $15,692 5/31/20 $16,318 $15,966 $16,457 6/30/20 $16,350 $16,283 $16,504 7/31/20 $17,050 $17,202 $17,203 8/31/20 $17,966 $18,438 $18,140 9/30/20 $17,490 $17,737 $17,654 10/31/20 $17,002 $17,266 $17,149 11/30/20 $18,923 $19,156 $19,084 12/31/20 $19,517 $19,892 $19,708 1/31/21 $19,162 $19,691 $19,356 2/28/21 $19,723 $20,234 $19,923 3/31/21 $20,749 $21,121 $20,956 4/30/21 $21,637 $22,248 $21,858 5/31/21 $21,971 $22,403 $22,197 6/30/21 $22,452 $22,926 $22,689 7/31/21 $23,045 $23,471 $23,294 8/31/21 $23,619 $24,184 $23,881 9/30/21 $22,420 $23,060 $22,676 10/31/21 $23,778 $24,675 $24,045 11/30/21 $23,444 $24,504 $23,709 12/31/21 $24,730 $25,602 $25,013 1/31/22 $23,473 $24,278 $23,760 2/28/22 $22,698 $23,551 $22,971 3/31/22 $23,592 $24,425 $23,871 4/30/22 $21,986 $22,295 $22,249 5/31/22 $22,137 $22,336 $22,404 6/30/22 $20,604 $20,492 $20,841 7/31/22 $22,051 $22,382 $22,322 8/31/22 $21,168 $21,469 $21,431 9/30/22 $19,358 $19,492 $19,579 10/31/22 $20,968 $21,070 $21,224 11/30/22 $22,293 $22,247 $22,589 12/31/22 $21,242 $20,966 $21,511 1/31/23 $22,211 $22,283 $22,498 2/28/23 $21,571 $21,739 $21,859 3/31/23 $22,317 $22,537 $22,618 4/30/23 $22,707 $22,889 $23,007 5/31/23 $22,576 $22,989 $22,873 6/30/23 $23,840 $24,508 $24,179 7/31/23 $24,578 $25,295 $24,919 8/31/23 $24,294 $24,892 $24,639 9/30/23 $23,400 $23,705 $23,730 10/31/23 $22,999 $23,207 $23,328 11/30/23 $24,778 $25,326 $25,102 12/31/23 $25,883 $26,477 $26,211 1/31/24 $26,410 $26,922 $26,762 2/29/24 $27,520 $28,359 $27,903 3/31/24 $28,484 $29,272 $28,879 4/30/24 $27,319 $28,077 $27,693 5/31/24 $28,446 $29,470 $28,827 6/30/24 $29,050 $30,529 $29,460 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years Since Inception 4/15/15 QUS 21.84% 13.17% 12.28% S&P 500 Index 24.56% 15.05% 12.95% MSCI USA Factor Mix A-Series Capped Index 21.84% 13.33% 12.45% | ||||||||
| Performance Inception Date | Apr. 15, 2015 | ||||||||
| AssetsNet | $ 1,299,231,401 | $ 1,299,231,401 | $ 1,299,231,401 | $ 1,299,231,401 | $ 1,299,231,401 | $ 1,299,231,401 | $ 1,299,231,401 | $ 1,299,231,401 | $ 1,299,231,401 |
| Holdings Count | Holding | 605 | 605 | 605 | 605 | 605 | 605 | 605 | 605 | 605 |
| Advisory Fees Paid, Amount | $ 1,692,396 | ||||||||
| InvestmentCompanyPortfolioTurnover | 13% | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $1,299,231,401 # of Portfolio Holdings 605 Portfolio Turnover Rate 13% Total Advisory Fees Paid $1,692,396 | ||||||||
| Holdings [Text Block] | Top Ten Industry Industry % Value of Total Net Assets Semiconductors & Semiconductor Equipment 7.8% Software 7.3% Pharmaceuticals 5.8% Insurance 5.1% Interactive Media & Services 4.9% Health Care Providers & Services 4.9% Financial Services 4.8% Banks 4.0% Technology Hardware, Storage & Peripherals 3.9% Oil, Gas & Consumable Fuels 3.6% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets Apple, Inc. 3.3% Microsoft Corp. 3.1% Alphabet, Inc. 2.6% NVIDIA Corp. 2.6% Eli Lilly & Co. 2.5% Meta Platforms, Inc. 2.3% UnitedHealth Group, Inc. 2.0% Visa, Inc., A 1.7% Johnson & Johnson 1.7% Mastercard, Inc., A 1.5% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000078463 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR ICE Preferred Securities ETF | ||||||||
| Trading Symbol | PSK | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR ICE Preferred Securities ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C404"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR ICE Preferred Securities ETF $47 0.45% | ||||||||
| Expenses Paid, Amount | $ 47 | ||||||||
| Expense Ratio, Percent | 0.45% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Preferred stocks are less volatile than common stocks and offer a higher yield with a preference over common stock shareholders in receiving dividends. A hybrid between traditional equities and bonds, preferred stocks provide unique benefits in any market climate. Over the 12-month reporting period, the Fund posted positive returns in eight of the months. Banks (9.59%), Insurance (9.49%) and Financial Services (9.48%) all performed similarly and drove the positive return. These industries make up the bulk of the preferred securities in the Index. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C409"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | PSK S&P 500 Index ICE Exchange-Listed Fixed & Adjustable Rate Preferred Securities Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $9,938 $9,838 $9,958 8/31/14 $10,147 $10,245 $10,140 9/30/14 $10,062 $10,065 $10,076 10/31/14 $10,217 $10,311 $10,241 11/30/14 $10,372 $10,581 $10,380 12/31/14 $10,354 $10,557 $10,338 1/31/15 $10,579 $10,267 $10,595 2/28/15 $10,640 $10,860 $10,680 3/31/15 $10,724 $10,725 $10,743 4/30/15 $10,667 $10,801 $10,701 5/31/15 $10,641 $10,942 $10,672 6/30/15 $10,510 $10,737 $10,534 7/31/15 $10,682 $10,944 $10,762 8/31/15 $10,699 $10,285 $10,764 9/30/15 $10,737 $10,003 $10,771 10/31/15 $10,967 $10,813 $11,033 11/30/15 $11,070 $10,849 $11,136 12/31/15 $11,164 $10,653 $11,234 1/31/16 $11,161 $10,080 $11,223 2/29/16 $11,171 $10,077 $11,234 3/31/16 $11,362 $10,780 $11,427 4/30/16 $11,432 $10,838 $11,515 5/31/16 $11,596 $11,027 $11,699 6/30/16 $11,776 $11,053 $11,868 7/31/16 $11,868 $11,474 $11,948 8/31/16 $11,884 $11,489 $11,973 9/30/16 $11,784 $11,498 $11,868 10/31/16 $11,670 $11,274 $11,782 11/30/16 $11,115 $11,718 $11,227 12/31/16 $11,085 $11,938 $11,191 1/31/17 $11,436 $12,178 $11,560 2/28/17 $11,640 $12,650 $11,757 3/31/17 $11,727 $12,657 $11,844 4/30/17 $11,918 $12,791 $12,011 5/31/17 $12,057 $12,955 $12,130 6/30/17 $12,162 $13,046 $12,265 7/31/17 $12,221 $13,304 $12,324 8/31/17 $12,236 $13,345 $12,357 9/30/17 $12,245 $13,630 $12,368 10/31/17 $12,245 $13,942 $12,357 11/30/17 $12,295 $14,374 $12,366 12/31/17 $12,256 $14,532 $12,363 1/31/18 $11,885 $15,317 $12,017 2/28/18 $12,082 $14,764 $12,209 3/31/18 $12,184 $14,426 $12,301 4/30/18 $12,063 $14,499 $12,170 5/31/18 $12,201 $14,869 $12,329 6/30/18 $12,358 $14,945 $12,454 7/31/18 $12,349 $15,461 $12,481 8/31/18 $12,507 $15,995 $12,619 9/30/18 $12,304 $16,067 $12,412 10/31/18 $12,068 $14,939 $12,190 11/30/18 $11,752 $15,237 $11,872 12/31/18 $11,701 $13,845 $11,818 1/31/19 $12,405 $15,032 $12,527 2/28/19 $12,564 $15,555 $12,731 3/31/19 $12,735 $15,829 $12,860 4/30/19 $12,829 $16,483 $12,968 5/31/19 $12,927 $15,441 $13,069 6/30/19 $13,077 $16,537 $13,211 7/31/19 $13,347 $16,789 $13,496 8/31/19 $13,475 $16,480 $13,626 9/30/19 $13,560 $16,767 $13,738 10/31/19 $13,611 $17,132 $13,770 11/30/19 $13,474 $17,785 $13,629 12/31/19 $13,745 $18,296 $13,915 1/31/20 $13,867 $18,315 $14,056 2/29/20 $13,430 $16,807 $13,551 3/31/20 $12,398 $14,731 $12,519 4/30/20 $13,329 $16,620 $13,493 5/31/20 $13,479 $17,411 $13,665 6/30/20 $13,333 $17,758 $13,464 7/31/20 $13,918 $18,759 $14,120 8/31/20 $14,120 $20,107 $14,297 9/30/20 $14,048 $19,343 $14,221 10/31/20 $14,019 $18,829 $14,273 11/30/20 $14,345 $20,890 $14,545 12/31/20 $14,612 $21,693 $14,867 1/31/21 $14,296 $21,474 $14,572 2/28/21 $14,033 $22,066 $14,279 3/31/21 $14,416 $23,033 $14,655 4/30/21 $14,532 $24,262 $14,770 5/31/21 $14,601 $24,431 $14,881 6/30/21 $14,869 $25,002 $15,156 7/31/21 $14,831 $25,596 $15,130 8/31/21 $14,790 $26,374 $15,077 9/30/21 $14,781 $25,147 $15,083 10/31/21 $14,840 $26,909 $15,138 11/30/21 $14,498 $26,723 $14,800 12/31/21 $14,851 $27,920 $15,167 1/31/22 $14,275 $26,475 $14,589 2/28/22 $13,729 $25,683 $13,979 3/31/22 $13,618 $26,636 $13,919 4/30/22 $12,670 $24,314 $12,988 5/31/22 $13,169 $24,358 $13,472 6/30/22 $12,717 $22,348 $12,983 7/31/22 $13,463 $24,408 $13,777 8/31/22 $12,816 $23,413 $13,092 9/30/22 $12,536 $21,256 $12,802 10/31/22 $11,844 $22,977 $12,136 11/30/22 $12,576 $24,261 $12,908 12/31/22 $12,061 $22,864 $12,315 1/31/23 $13,534 $24,300 $13,872 2/28/23 $13,177 $23,707 $13,504 3/31/23 $12,592 $24,578 $12,877 4/30/23 $12,874 $24,961 $13,184 5/31/23 $12,545 $25,070 $12,861 6/30/23 $12,614 $26,726 $12,946 7/31/23 $12,798 $27,585 $13,112 8/31/23 $12,591 $27,146 $12,920 9/30/23 $12,450 $25,852 $12,768 10/31/23 $11,814 $25,308 $12,122 11/30/23 $12,840 $27,619 $13,179 12/31/23 $13,148 $28,874 $13,466 1/31/24 $13,634 $29,359 $13,979 2/29/24 $13,768 $30,927 $14,136 3/31/24 $13,801 $31,922 $14,148 4/30/24 $13,254 $30,619 $13,640 5/31/24 $13,532 $32,138 $13,930 6/30/24 $13,639 $33,292 $13,980 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years PSK 7.62% 0.84% 3.15% S&P 500 Index 24.56% 15.05% 12.86% ICE Exchange-Listed Fixed & Adjustable Rate Preferred Securities Index 7.98% 1.14% 3.47% | ||||||||
| AssetsNet | $ 809,692,978 | $ 809,692,978 | $ 809,692,978 | $ 809,692,978 | $ 809,692,978 | $ 809,692,978 | $ 809,692,978 | $ 809,692,978 | $ 809,692,978 |
| Holdings Count | Holding | 157 | 157 | 157 | 157 | 157 | 157 | 157 | 157 | 157 |
| Advisory Fees Paid, Amount | $ 3,680,424 | ||||||||
| InvestmentCompanyPortfolioTurnover | 21% | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $809,692,978 # of Portfolio Holdings 157 Portfolio Turnover Rate 21% Total Advisory Fees Paid $3,680,424 | ||||||||
| Holdings [Text Block] | Top Industry Industry % Value of Total Net Assets Banks 37.0% Insurance 25.8% Electric 14.8% Diversified Financial Services 10.4% Real Estate Investment Trusts 4.8% Auto Manufacturers 2.9% Telecommunications 2.8% Sovereign 0.3% Gas 0.3% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets Citigroup Capital XIII, 11.96%, due 10/30/40 3.7% AT&T, Inc., 5.35%, due 11/01/66 1.7% Capital One Financial Corp., 5.00%, due 12/01/24 1.7% Wells Fargo & Co., 4.75%, due 03/15/25 1.6% Allstate Corp., 5.10%, due 10/15/24 1.4% Duke Energy Corp., 5.75%, due 07/29/24 1.4% Capital One Financial Corp., 4.80%, due 06/01/25 1.3% Southern Co., 4.95%, due 01/30/80 1.2% U.S. Bancorp, 6.19%, due 07/29/24 1.2% Athene Holding Ltd., 6.35%, due 06/30/29 1.2% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000162275 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR FactSet Innovative Technology ETF | ||||||||
| Trading Symbol | XITK | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR FactSet Innovative Technology ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C428"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR FactSet Innovative Technology ETF $48 0.45% | ||||||||
| Expenses Paid, Amount | $ 48 | ||||||||
| Expense Ratio, Percent | 0.45% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Performance of the Fund for the reporting period was driven by positive earnings growth, Artificial Intelligence and other Technology-centered tailwinds and a resilient economy despite sticky core inflation. During the reporting period, the Fund’s use of their current investment strategies did not cause the Fund’s performance to materially deviate from the manager’s expectations considering the uncertainty of the markets. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C433"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | XITK S&P 500 Index FactSet Innovative Technology Index 1/13/16 $10,000 $10,000 $10,000 1/31/16 $9,854 $10,269 $9,849 2/29/16 $9,918 $10,266 $9,914 3/31/16 $10,552 $10,981 $10,550 4/30/16 $10,740 $11,041 $10,745 5/31/16 $11,030 $11,234 $11,040 6/30/16 $10,968 $11,260 $10,984 7/31/16 $12,056 $11,689 $12,073 8/31/16 $12,396 $11,704 $12,425 9/30/16 $12,580 $11,713 $12,614 10/31/16 $11,902 $11,485 $11,940 11/30/16 $12,284 $11,937 $12,320 12/31/16 $11,893 $12,162 $11,933 1/31/17 $12,433 $12,406 $12,497 2/28/17 $12,759 $12,886 $12,791 3/31/17 $13,008 $12,894 $13,070 4/30/17 $13,535 $13,031 $13,625 5/31/17 $14,162 $13,198 $14,256 6/30/17 $14,230 $13,290 $14,300 7/31/17 $14,810 $13,553 $14,901 8/31/17 $15,273 $13,595 $15,378 9/30/17 $15,787 $13,885 $15,885 10/31/17 $16,226 $14,203 $16,335 11/30/17 $16,322 $14,643 $16,433 12/31/17 $16,126 $14,804 $16,229 1/31/18 $17,431 $15,604 $17,561 2/28/18 $17,979 $15,040 $18,092 3/31/18 $18,201 $14,696 $18,220 4/30/18 $18,137 $14,771 $18,246 5/31/18 $19,877 $15,147 $19,977 6/30/18 $19,809 $15,225 $19,901 7/31/18 $19,515 $15,750 $19,601 8/31/18 $21,804 $16,295 $21,966 9/30/18 $21,514 $16,368 $21,635 10/31/18 $18,607 $15,219 $18,782 11/30/18 $18,983 $15,522 $19,146 12/31/18 $17,432 $14,104 $17,628 1/31/19 $20,061 $15,313 $20,300 2/28/19 $21,644 $15,847 $21,894 3/31/19 $21,968 $16,126 $22,240 4/30/19 $22,972 $16,792 $23,261 5/31/19 $21,005 $15,730 $21,280 6/30/19 $22,225 $16,847 $22,523 7/31/19 $22,752 $17,103 $23,056 8/31/19 $21,931 $16,789 $22,262 9/30/19 $20,993 $17,081 $21,302 10/31/19 $22,188 $17,453 $22,523 11/30/19 $23,843 $18,118 $24,225 12/31/19 $23,886 $18,639 $24,275 1/31/20 $24,960 $18,658 $25,362 2/29/20 $24,048 $17,122 $24,464 3/31/20 $20,819 $15,007 $21,168 4/30/20 $24,213 $16,931 $24,618 5/31/20 $27,991 $17,737 $28,484 6/30/20 $30,604 $18,090 $31,148 7/31/20 $33,732 $19,110 $34,335 8/31/20 $36,185 $20,484 $36,836 9/30/20 $35,569 $19,706 $36,233 10/31/20 $35,813 $19,182 $36,487 11/30/20 $41,763 $21,281 $42,538 12/31/20 $45,352 $22,099 $46,254 1/31/21 $46,843 $21,876 $47,792 2/28/21 $48,800 $22,480 $49,804 3/31/21 $44,021 $23,464 $44,925 4/30/21 $45,560 $24,716 $46,524 5/31/21 $43,939 $24,889 $44,890 6/30/21 $47,657 $25,470 $48,708 7/31/21 $46,866 $26,075 $47,917 8/31/21 $47,754 $26,868 $48,847 9/30/21 $45,423 $25,618 $46,476 10/31/21 $48,390 $27,413 $49,510 11/30/21 $42,965 $27,223 $43,969 12/31/21 $40,233 $28,443 $41,208 1/31/22 $34,443 $26,971 $35,311 2/28/22 $33,843 $26,164 $34,718 3/31/22 $32,242 $27,135 $33,053 4/30/22 $26,857 $24,769 $27,538 5/31/22 $24,859 $24,814 $25,499 6/30/22 $22,733 $22,766 $23,313 7/31/22 $23,798 $24,865 $24,418 8/31/22 $23,625 $23,851 $24,224 9/30/22 $21,011 $21,655 $21,540 10/31/22 $21,555 $23,408 $22,120 11/30/22 $21,668 $24,716 $22,238 12/31/22 $21,129 $23,292 $21,684 1/31/23 $24,502 $24,755 $25,161 2/28/23 $23,952 $24,151 $24,601 3/31/23 $25,221 $25,038 $25,905 4/30/23 $23,148 $25,429 $23,768 5/31/23 $25,786 $25,539 $26,501 6/30/23 $27,834 $27,227 $28,601 7/31/23 $30,516 $28,102 $31,355 8/31/23 $28,320 $27,654 $29,121 9/30/23 $26,100 $26,336 $26,831 10/31/23 $23,830 $25,782 $24,509 11/30/23 $27,659 $28,136 $28,449 12/31/23 $30,821 $29,415 $31,720 1/31/24 $30,368 $29,909 $31,290 2/29/24 $31,662 $31,506 $32,632 3/31/24 $31,505 $32,520 $32,466 4/30/24 $29,323 $31,192 $30,144 5/31/24 $29,754 $32,740 $30,602 6/30/24 $30,933 $33,916 $31,819 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years Since Inception 1/13/16 XITK 11.15% 6.84% 14.27% S&P 500 Index 24.56% 15.05% 15.42% FactSet Innovative Technology Index 11.25% 7.15% 14.66% | ||||||||
| Performance Inception Date | Jan. 13, 2016 | ||||||||
| AssetsNet | $ 148,033,452 | $ 148,033,452 | $ 148,033,452 | $ 148,033,452 | $ 148,033,452 | $ 148,033,452 | $ 148,033,452 | $ 148,033,452 | $ 148,033,452 |
| Holdings Count | Holding | 103 | 103 | 103 | 103 | 103 | 103 | 103 | 103 | 103 |
| Advisory Fees Paid, Amount | $ 477,913 | ||||||||
| InvestmentCompanyPortfolioTurnover | 34% | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $148,033,452 # of Portfolio Holdings 103 Portfolio Turnover Rate 34% Total Advisory Fees Paid $477,913 | ||||||||
| Holdings [Text Block] | Top Ten Industry Industry % Value of Total Net Assets Software 37.7% Semiconductors & Semiconductor Equipment 15.5% IT Services 9.5% Professional Services 6.4% Entertainment 5.2% Electronic Equipment, Instruments & Components 5.0% Media 4.7% Interactive Media & Services 3.9% Technology Hardware, Storage & Peripherals 2.8% Financial Services 2.4% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets Super Micro Computer, Inc. 2.8% NVIDIA Corp. 2.4% AppLovin Corp., A 2.1% Camtek Ltd. 1.9% Impinj, Inc. 1.8% Toast, Inc., A 1.6% Daktronics, Inc. 1.5% HashiCorp, Inc., A 1.5% Crowdstrike Holdings, Inc., A 1.5% Spotify Technology SA 1.5% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000166946 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR MSCI USA Gender Diversity ETF | ||||||||
| Trading Symbol | SHE | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR MSCI USA Gender Diversity ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C453"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR MSCI USA Gender Diversity ETF $23 0.20% | ||||||||
| Expenses Paid, Amount | $ 23 | ||||||||
| Expense Ratio, Percent | 0.20% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? The market environment over the reporting period was largely driven by news about inflation, economic growth and the impact either would have on the Fed and other central banks with regard to interest rate decisions. Alongside this macro story was the prospect of a burgeoning artificial intelligence (A.I.) boom, driving up the values of A.I.-related tech and semiconductor companies. Meta Platforms, NVIDIA Corporation, and Amazon.com traded at record levels and were the top contributors to the Fund’s performance. There was wide dispersion of sector returns. The Index is constructed as a sector neutral Index which helped the Index keep up with the returns of the broader MSCI USA Index over the reporting period. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C458"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | SHE S&P 500 Index MSCI USA Gender Diversity Select Index 3/7/16 $10,000 $10,000 $10,000 3/31/16 $10,311 $10,303 $10,309 4/30/16 $10,482 $10,359 $10,469 5/31/16 $10,477 $10,540 $10,483 6/30/16 $10,533 $10,564 $10,537 7/31/16 $10,939 $10,967 $10,952 8/31/16 $10,903 $10,981 $10,915 9/30/16 $10,839 $10,990 $10,855 10/31/16 $10,619 $10,775 $10,630 11/30/16 $11,006 $11,200 $11,020 12/31/16 $11,066 $11,411 $11,079 1/31/17 $11,208 $11,640 $11,227 2/28/17 $11,692 $12,090 $11,720 3/31/17 $11,616 $12,098 $11,641 4/30/17 $11,780 $12,226 $11,807 5/31/17 $11,861 $12,382 $11,889 6/30/17 $11,986 $12,469 $12,019 7/31/17 $12,162 $12,716 $12,198 8/31/17 $12,170 $12,755 $12,211 9/30/17 $12,512 $13,027 $12,560 10/31/17 $12,663 $13,325 $12,711 11/30/17 $13,116 $13,738 $13,165 12/31/17 $13,249 $13,889 $13,297 1/31/18 $13,840 $14,640 $13,901 2/28/18 $13,314 $14,111 $13,375 3/31/18 $13,129 $13,788 $13,183 4/30/18 $13,281 $13,858 $13,343 5/31/18 $13,439 $14,212 $13,509 6/30/18 $13,646 $14,284 $13,706 7/31/18 $14,114 $14,777 $14,191 8/31/18 $14,459 $15,288 $14,513 9/30/18 $14,608 $15,356 $14,628 10/31/18 $13,596 $14,279 $13,663 11/30/18 $14,045 $14,563 $14,130 12/31/18 $12,793 $13,233 $12,836 1/31/19 $13,791 $14,367 $13,822 2/28/19 $14,185 $14,867 $14,240 3/31/19 $14,323 $15,129 $14,397 4/30/19 $14,749 $15,754 $14,808 5/31/19 $14,006 $14,758 $14,050 6/30/19 $14,945 $15,806 $15,013 7/31/19 $15,094 $16,047 $15,169 8/31/19 $14,810 $15,752 $14,891 9/30/19 $14,951 $16,026 $15,026 10/31/19 $15,127 $16,375 $15,212 11/30/19 $15,604 $16,999 $15,689 12/31/19 $15,817 $17,487 $15,914 1/31/20 $15,637 $17,505 $15,727 2/29/20 $14,442 $16,064 $14,518 3/31/20 $12,157 $14,080 $12,226 4/30/20 $13,734 $15,885 $13,829 5/31/20 $14,566 $16,642 $14,673 6/30/20 $14,666 $16,973 $14,785 7/31/20 $15,197 $17,930 $15,297 8/31/20 $16,200 $19,218 $16,316 9/30/20 $15,852 $18,488 $15,970 10/31/20 $15,461 $17,996 $15,549 11/30/20 $17,648 $19,966 $17,773 12/31/20 $18,644 $20,734 $18,796 1/31/21 $18,247 $20,525 $18,392 2/28/21 $19,386 $21,091 $19,515 3/31/21 $19,798 $22,014 $19,931 4/30/21 $20,683 $23,189 $20,827 5/31/21 $20,822 $23,351 $20,975 6/30/21 $21,247 $23,896 $21,417 7/31/21 $21,639 $24,464 $21,812 8/31/21 $22,136 $25,208 $22,322 9/30/21 $21,136 $24,035 $21,321 10/31/21 $22,416 $25,719 $22,611 11/30/21 $20,910 $25,541 $21,103 12/31/21 $21,475 $26,686 $21,663 1/31/22 $19,806 $25,305 $20,007 2/28/22 $19,124 $24,547 $19,311 3/31/22 $19,417 $25,459 $19,605 4/30/22 $17,675 $23,239 $17,848 5/31/22 $17,457 $23,281 $17,621 6/30/22 $16,058 $21,360 $16,204 7/31/22 $17,313 $23,329 $17,481 8/31/22 $16,809 $22,378 $16,979 9/30/22 $15,440 $20,317 $15,590 10/31/22 $17,126 $21,962 $17,305 11/30/22 $17,769 $23,189 $17,976 12/31/22 $16,820 $21,853 $17,007 1/31/23 $17,807 $23,226 $18,005 2/28/23 $17,310 $22,659 $17,522 3/31/23 $17,749 $23,491 $17,961 4/30/23 $18,060 $23,858 $18,273 5/31/23 $17,814 $23,962 $18,017 6/30/23 $18,924 $25,545 $19,160 7/31/23 $19,546 $26,365 $19,778 8/31/23 $19,171 $25,946 $19,403 9/30/23 $18,342 $24,709 $18,557 10/31/23 $18,136 $24,189 $18,369 11/30/23 $19,682 $26,398 $19,930 12/31/23 $20,592 $27,597 $20,847 1/31/24 $21,073 $28,061 $21,353 2/29/24 $22,305 $29,560 $22,622 3/31/24 $23,026 $30,511 $23,353 4/30/24 $21,979 $29,265 $22,267 5/31/24 $22,840 $30,718 $23,134 6/30/24 $23,705 $31,821 $24,023 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years Since Inception 3/7/16 SHE 25.14% 9.65% 10.93% S&P 500 Index 24.56% 15.05% 14.87% MSCI USA Gender Diversity Select Index 25.38% 9.86% 11.12% | ||||||||
| Performance Inception Date | Mar. 07, 2016 | ||||||||
| AssetsNet | $ 244,862,441 | $ 244,862,441 | $ 244,862,441 | $ 244,862,441 | $ 244,862,441 | $ 244,862,441 | $ 244,862,441 | $ 244,862,441 | $ 244,862,441 |
| Holdings Count | Holding | 223 | 223 | 223 | 223 | 223 | 223 | 223 | 223 | 223 |
| Advisory Fees Paid, Amount | $ 439,079 | ||||||||
| InvestmentCompanyPortfolioTurnover | 46% | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $244,862,441 # of Portfolio Holdings 223 Portfolio Turnover Rate 46% Total Advisory Fees Paid $439,079 | ||||||||
| Holdings [Text Block] | Top Ten Sectors Sector % Value of Total Net Assets Information Technology 31.4% Financials 12.4% Health Care 11.8% Consumer Discretionary 10.1% Communication Services 9.4% Industrials 8.6% Consumer Staples 5.7% Energy 3.7% Materials 2.3% Real Estate 2.2% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets NVIDIA Corp. 5.7% Apple, Inc. 4.8% Amazon.com, Inc. 4.6% Microsoft Corp. 4.6% Meta Platforms, Inc. 4.0% Alphabet, Inc. 3.3% Accenture PLC, A 3.1% Eli Lilly & Co. 2.9% Intuit, Inc. 2.9% Cisco Systems, Inc. 2.6% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000219610 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR Bloomberg Emerging Markets USD Bond ETF | ||||||||
| Trading Symbol | EMHC | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR Bloomberg Emerging Markets USD Bond ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C478"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR Bloomberg Emerging Markets USD Bond ETF $24 0.23% | ||||||||
| Expenses Paid, Amount | $ 24 | ||||||||
| Expense Ratio, Percent | 0.23% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Global disinflation, tightening credit spreads, and loosening monetary policy were the main drivers of fund performance. Real yields in most EM economies remained on an upward trajectory. Investor sentiments towards the end of 2023 were lifted by increasing market expectations of monetary policy convergence between emerging markets and developed markets central banks in 2024. Emerging market debt had a cautious start to 2024, having experienced a strong rally towards the end of 2023. A market narrative built on the possibility of the U.S. Federal Reserve (the “Fed”) maintaining high rates for longer than what had been anticipated weighed on risk sentiments. The geopolitical backdrop remained uncertain, with Israel’s operations in Rafah and elections taking place in India, Mexico, and South Africa. In China, the government relaxed home buying restrictions and reduced down payment ratios to support the prevailing sluggishness of its housing market. Overall EM hard currency treasuries delivered positive returns during the period majorly driven by the spread component. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C483"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | EMHC Bloomberg Global Aggregate Bond Index Bloomberg Emerging USD Bond Core Index 3/31/21 $10,000 $10,000 $10,000 4/30/21 $10,143 $10,271 $10,097 5/31/21 $10,235 $10,367 $10,192 6/30/21 $10,335 $10,276 $10,286 7/31/21 $10,388 $10,413 $10,331 8/31/21 $10,473 $10,369 $10,431 9/30/21 $10,211 $10,185 $10,206 10/31/21 $10,221 $10,161 $10,213 11/30/21 $10,043 $10,131 $10,048 12/31/21 $10,228 $10,117 $10,181 1/31/22 $9,867 $9,909 $9,848 2/28/22 $9,222 $9,792 $9,166 3/31/22 $9,136 $9,493 $8,955 4/30/22 $8,552 $8,973 $8,434 5/31/22 $8,616 $8,998 $8,465 6/30/22 $8,138 $8,709 $7,969 7/31/22 $8,458 $8,894 $8,229 8/31/22 $8,268 $8,543 $8,163 9/30/22 $7,753 $8,104 $7,648 10/31/22 $7,766 $8,049 $7,676 11/30/22 $8,492 $8,427 $8,259 12/31/22 $8,411 $8,473 $8,283 1/31/23 $8,714 $8,751 $8,524 2/28/23 $8,494 $8,460 $8,349 3/31/23 $8,663 $8,728 $8,469 4/30/23 $8,707 $8,766 $8,515 5/31/23 $8,589 $8,595 $8,437 6/30/23 $8,751 $8,594 $8,558 7/31/23 $8,885 $8,654 $8,707 8/31/23 $8,725 $8,535 $8,556 9/30/23 $8,453 $8,286 $8,318 10/31/23 $8,329 $8,187 $8,180 11/30/23 $8,833 $8,600 $8,668 12/31/23 $9,255 $8,957 $9,105 1/31/24 $9,137 $8,834 $8,989 2/29/24 $9,157 $8,723 $9,009 3/31/24 $9,270 $8,771 $9,143 4/30/24 $9,041 $8,549 $8,925 5/31/24 $9,279 $8,661 $9,111 6/30/24 $9,263 $8,673 $9,166 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year Since Inception 4/6/21 EMHC 6.72% (2.29%) Bloomberg Global Aggregate Bond Index 0.93% (4.90%) Bloomberg Emerging USD Bond Core Index 7.10% (2.66%) | ||||||||
| Performance Inception Date | Apr. 06, 2021 | ||||||||
| AssetsNet | $ 307,523,982 | $ 307,523,982 | $ 307,523,982 | $ 307,523,982 | $ 307,523,982 | $ 307,523,982 | $ 307,523,982 | $ 307,523,982 | $ 307,523,982 |
| Holdings Count | Holding | 529 | 529 | 529 | 529 | 529 | 529 | 529 | 529 | 529 |
| Advisory Fees Paid, Amount | $ 594,283 | ||||||||
| InvestmentCompanyPortfolioTurnover | 31% | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $307,523,982 # of Portfolio Holdings 529 Portfolio Turnover Rate 31% Total Advisory Fees Paid $594,283 | ||||||||
| Holdings [Text Block] | Maturity Weightings Maturity Duration % Value of Total Net Assets 0 to 1 Year 1.2% 1 to 2 Years 0.8% 2 to 3 Years 5.4% 3 to 5 Years 19.2% 5 to 10 Years 34.3% 10 to 20 Years 13.1% 20 to 30 Years 20.7% Greater than 30 Years 3.9% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets Republic of Poland Government International Bonds, 5.13%, due 09/18/34 0.7% Israel Government International Bonds, 5.75%, due 03/12/54 0.6% Ecopetrol SA, 8.88%, due 01/13/33 0.6% Israel Government International Bonds, 5.50%, due 03/12/34 0.6% Israel Government International Bonds, 5.38%, due 03/12/29 0.6% Bahrain Government International Bonds, 7.00%, due 10/12/28 0.6% Bahrain Government International Bonds, 5.25%, due 01/25/33 0.6% Oman Government International Bonds, 6.00%, due 08/01/29 0.6% Panama Government International Bonds, 6.70%, due 01/26/36 0.5% Peru Government International Bonds, 3.00%, due 01/15/34 0.5% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000222017 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR Bloomberg 3-12 Month T-Bill ETF | ||||||||
| Trading Symbol | BILS | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR Bloomberg 3-12 Month T-Bill ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C503"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR Bloomberg 3-12 Month T-Bill ETF $14 0.14% | ||||||||
| Expenses Paid, Amount | $ 14 | ||||||||
| Expense Ratio, Percent | 0.14% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Uncertainty around the future path of the U.S. Federal Reserve (“Fed”) policy as well as high interest rates were the primary drivers of Fund performance during the reporting period. Following record high inflation stemming from the 2020 pandemic, the Fed embarked on an aggressive hiking path that saw a 5.25% increase in interest rates, with the last 25 bp rate hike occurring in July 2023. The Fed has been on pause ever since, waiting for the economy to fully absorb the effects from their policy tightening. By the end of the reporting period, the Fed still deemed inflation too high for to start lowering interest rates and reiterated the importance of seeing more “good data”, with lower CPI and PCE readings being the most important indicators of a cooling economy. Fixed income markets were sensitive to data during the reporting period, as evidenced by moves in Treasury yields. However, due to the shorter durations of the bonds in scope for the index, market volatility did not have a large impact on price returns. Twelve-month yields oscillated between 5.40% and 4.65% during the period, resulting in higher returns than we have seen in recent history in the strategy. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C508"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | BILS Bloomberg U.S. Aggregate Bond Index Bloomberg 3-12 Month U.S. Treasury Bill Index 8/31/20 $10,000 $10,000 $10,000 9/30/20 $10,001 $10,392 $10,001 10/31/20 $10,001 $10,346 $10,002 11/30/20 $10,001 $10,447 $10,004 12/31/20 $10,001 $10,462 $10,005 1/31/21 $10,002 $10,386 $10,006 2/28/21 $10,001 $10,237 $10,007 3/31/21 $10,002 $10,109 $10,009 4/30/21 $10,001 $10,189 $10,009 5/31/21 $10,000 $10,222 $10,010 6/30/21 $9,998 $10,294 $10,009 7/31/21 $9,998 $10,409 $10,009 8/31/21 $9,997 $10,389 $10,010 9/30/21 $9,997 $10,299 $10,010 10/31/21 $9,995 $10,296 $10,010 11/30/21 $9,994 $10,327 $10,010 12/31/21 $9,993 $10,300 $10,010 1/31/22 $9,984 $10,078 $10,002 2/28/22 $9,983 $9,966 $10,002 3/31/22 $9,978 $9,689 $9,998 4/30/22 $9,976 $9,321 $9,998 5/31/22 $9,984 $9,381 $10,007 6/30/22 $9,976 $9,234 $9,997 7/31/22 $9,979 $9,460 $10,004 8/31/22 $9,990 $9,193 $10,016 9/30/22 $10,002 $8,795 $10,026 10/31/22 $10,008 $8,681 $10,036 11/30/22 $10,041 $9,001 $10,070 12/31/22 $10,082 $8,960 $10,109 1/31/23 $10,112 $9,236 $10,145 2/28/23 $10,142 $8,997 $10,176 3/31/23 $10,192 $9,226 $10,225 4/30/23 $10,222 $9,281 $10,259 5/31/23 $10,252 $9,180 $10,290 6/30/23 $10,298 $9,148 $10,333 7/31/23 $10,337 $9,141 $10,378 8/31/23 $10,387 $9,083 $10,425 9/30/23 $10,428 $8,852 $10,470 10/31/23 $10,475 $8,712 $10,519 11/30/23 $10,528 $9,107 $10,572 12/31/23 $10,578 $9,456 $10,626 1/31/24 $10,622 $9,430 $10,670 2/29/24 $10,660 $9,296 $10,707 3/31/24 $10,703 $9,382 $10,754 4/30/24 $10,743 $9,145 $10,796 5/31/24 $10,793 $9,300 $10,848 6/30/24 $10,837 $9,388 $10,892 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year Since Inception 9/23/20 BILS 5.28% 2.16% Bloomberg U.S. Aggregate Bond Index 2.63% (2.69%) Bloomberg 3-12 Month U.S. Treasury Bill Index 5.42% 2.29% | ||||||||
| Performance Inception Date | Sep. 23, 2020 | ||||||||
| AssetsNet | $ 2,837,386,715 | $ 2,837,386,715 | $ 2,837,386,715 | $ 2,837,386,715 | $ 2,837,386,715 | $ 2,837,386,715 | $ 2,837,386,715 | $ 2,837,386,715 | $ 2,837,386,715 |
| Holdings Count | Holding | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 |
| Advisory Fees Paid, Amount | $ 3,704,143 | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $2,837,386,715 # of Portfolio Holdings 26 Total Advisory Fees Paid $3,704,143 | ||||||||
| Holdings [Text Block] | Maturity Weightings Maturity Duration % Value of Total Net Assets 0 to 1 Year 107.5% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets U.S. Treasury Bills, 5.24%, due 10/03/24 6.9% U.S. Treasury Bills, 5.25%, due 10/31/24 6.9% U.S. Treasury Bills, 5.16%, due 11/29/24 6.8% U.S. Treasury Bills, 5.06%, due 12/26/24 6.8% U.S. Treasury Bills, 5.22%, due 10/10/24 4.2% U.S. Treasury Bills, 5.26%, due 10/17/24 4.2% U.S. Treasury Bills, 5.27%, due 10/24/24 4.2% U.S. Treasury Bills, 5.30%, due 11/21/24 4.2% U.S. Treasury Bills, 5.30%, due 11/07/24 4.2% U.S. Treasury Bills, 5.31%, due 11/14/24 4.2% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000047963 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR Bloomberg 1-3 Month T-Bill ETF | ||||||||
| Trading Symbol | BIL | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR Bloomberg 1-3 Month T-Bill ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C527"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR Bloomberg 1-3 Month T-Bill ETF $14 0.14% | ||||||||
| Expenses Paid, Amount | $ 14 | ||||||||
| Expense Ratio, Percent | 0.14% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Uncertainty around the future path of the U.S. Federal Reserve (“Fed”) policy as well as high interest rates were the primary drivers of Fund performance during the reporting period. Following record high inflation stemming from the 2020 pandemic, the Fed embarked on an aggressive hiking path that saw a 5.25% increase in interest rates, with the last 25 bp rate hike occurring in July 2023. The Fed has been on pause ever since, waiting for the economy to fully absorb the effects from their policy tightening. By the end of the reporting period, the Fed still deemed inflation too high for to start lowering interest rates and reiterated the importance of seeing more “good data”, with lower CPI and PCE readings being the most important indicators of a cooling economy. Fixed income markets were sensitive to data during the reporting period, as evidenced by moves in Treasury yields. However, due to the shorter durations of the bonds in scope for the index, market volatility did not have a large impact on price returns. Three-month yields oscillated between 5.50% and 5.33% during the period, resulting in higher returns than we have seen in recent history in the strategy. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C532"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | BIL Bloomberg U.S. Aggregate Bond Index Bloomberg 1-3 Month U.S. Treasury Bill Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $9,998 $9,975 $10,000 8/31/14 $9,998 $10,085 $10,000 9/30/14 $9,998 $10,017 $10,001 10/31/14 $9,996 $10,115 $10,001 11/30/14 $9,996 $10,187 $10,001 12/31/14 $9,991 $10,196 $10,001 1/31/15 $9,991 $10,410 $10,001 2/28/15 $9,991 $10,312 $10,001 3/31/15 $9,989 $10,360 $10,001 4/30/15 $9,989 $10,323 $10,001 5/31/15 $9,989 $10,298 $10,001 6/30/15 $9,985 $10,186 $10,001 7/31/15 $9,985 $10,257 $10,001 8/31/15 $9,985 $10,242 $10,002 9/30/15 $9,985 $10,311 $10,002 10/31/15 $9,983 $10,313 $10,002 11/30/15 $9,983 $10,286 $10,002 12/31/15 $9,983 $10,252 $10,004 1/31/16 $9,983 $10,393 $10,004 2/29/16 $9,983 $10,467 $10,006 3/31/16 $9,985 $10,564 $10,010 4/30/16 $9,985 $10,604 $10,012 5/31/16 $9,985 $10,607 $10,013 6/30/16 $9,989 $10,798 $10,016 7/31/16 $9,989 $10,866 $10,018 8/31/16 $9,989 $10,854 $10,020 9/30/16 $9,991 $10,847 $10,023 10/31/16 $9,991 $10,765 $10,025 11/30/16 $9,989 $10,510 $10,027 12/31/16 $9,991 $10,524 $10,030 1/31/17 $9,996 $10,546 $10,034 2/28/17 $9,998 $10,616 $10,038 3/31/17 $10,000 $10,611 $10,040 4/30/17 $10,003 $10,693 $10,046 5/31/17 $10,009 $10,775 $10,052 6/30/17 $10,017 $10,764 $10,060 7/31/17 $10,025 $10,810 $10,068 8/31/17 $10,032 $10,908 $10,077 9/30/17 $10,039 $10,855 $10,086 10/31/17 $10,046 $10,862 $10,095 11/30/17 $10,053 $10,848 $10,103 12/31/17 $10,063 $10,898 $10,112 1/31/18 $10,073 $10,772 $10,123 2/28/18 $10,081 $10,670 $10,132 3/31/18 $10,094 $10,738 $10,145 4/30/18 $10,106 $10,659 $10,159 5/31/18 $10,120 $10,734 $10,175 6/30/18 $10,135 $10,722 $10,190 7/31/18 $10,149 $10,724 $10,206 8/31/18 $10,166 $10,793 $10,222 9/30/18 $10,179 $10,724 $10,239 10/31/18 $10,197 $10,639 $10,257 11/30/18 $10,216 $10,702 $10,276 12/31/18 $10,234 $10,899 $10,296 1/31/19 $10,253 $11,015 $10,317 2/28/19 $10,271 $11,008 $10,336 3/31/19 $10,290 $11,220 $10,357 4/30/19 $10,309 $11,223 $10,377 5/31/19 $10,331 $11,422 $10,399 6/30/19 $10,351 $11,565 $10,421 7/31/19 $10,368 $11,591 $10,440 8/31/19 $10,387 $11,891 $10,459 9/30/19 $10,403 $11,828 $10,477 10/31/19 $10,419 $11,863 $10,496 11/30/19 $10,430 $11,857 $10,508 12/31/19 $10,444 $11,849 $10,523 1/31/20 $10,456 $12,077 $10,537 2/29/20 $10,468 $12,294 $10,551 3/31/20 $10,489 $12,222 $10,573 4/30/20 $10,486 $12,439 $10,573 5/31/20 $10,486 $12,497 $10,574 6/30/20 $10,486 $12,576 $10,575 7/31/20 $10,486 $12,764 $10,576 8/31/20 $10,486 $12,661 $10,577 9/30/20 $10,485 $12,654 $10,578 10/31/20 $10,485 $12,597 $10,579 11/30/20 $10,485 $12,721 $10,580 12/31/20 $10,484 $12,739 $10,580 1/31/21 $10,484 $12,647 $10,581 2/28/21 $10,483 $12,465 $10,582 3/31/21 $10,483 $12,309 $10,582 4/30/21 $10,482 $12,406 $10,582 5/31/21 $10,480 $12,447 $10,583 6/30/21 $10,479 $12,534 $10,582 7/31/21 $10,478 $12,674 $10,583 8/31/21 $10,477 $12,650 $10,583 9/30/21 $10,477 $12,541 $10,584 10/31/21 $10,475 $12,537 $10,584 11/30/21 $10,475 $12,574 $10,584 12/31/21 $10,474 $12,542 $10,585 1/31/22 $10,473 $12,272 $10,585 2/28/22 $10,472 $12,135 $10,586 3/31/22 $10,474 $11,798 $10,588 4/30/22 $10,474 $11,350 $10,590 5/31/22 $10,477 $11,423 $10,596 6/30/22 $10,484 $11,244 $10,601 7/31/22 $10,489 $11,519 $10,610 8/31/22 $10,508 $11,193 $10,630 9/30/22 $10,529 $10,710 $10,651 10/31/22 $10,548 $10,571 $10,674 11/30/22 $10,580 $10,960 $10,708 12/31/22 $10,618 $10,910 $10,746 1/31/23 $10,649 $11,246 $10,782 2/28/23 $10,685 $10,955 $10,820 3/31/23 $10,729 $11,234 $10,863 4/30/23 $10,767 $11,302 $10,905 5/31/23 $10,808 $11,179 $10,949 6/30/23 $10,858 $11,139 $10,996 7/31/23 $10,900 $11,131 $11,044 8/31/23 $10,953 $11,060 $11,095 9/30/23 $10,997 $10,779 $11,144 10/31/23 $11,045 $10,609 $11,195 11/30/23 $11,096 $11,089 $11,245 12/31/23 $11,144 $11,514 $11,298 1/31/24 $11,191 $11,482 $11,347 2/29/24 $11,241 $11,320 $11,395 3/31/24 $11,287 $11,424 $11,447 4/30/24 $11,336 $11,136 $11,497 5/31/24 $11,388 $11,324 $11,553 6/30/24 $11,433 $11,431 $11,601 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years BIL 5.33% 2.01% 1.35% Bloomberg U.S. Aggregate Bond Index 2.63% (0.23%) 1.35% Bloomberg 1-3 Month U.S. Treasury Bill Index 5.50% 2.17% 1.50% | ||||||||
| AssetsNet | $ 32,516,469,361 | $ 32,516,469,361 | $ 32,516,469,361 | $ 32,516,469,361 | $ 32,516,469,361 | $ 32,516,469,361 | $ 32,516,469,361 | $ 32,516,469,361 | $ 32,516,469,361 |
| Holdings Count | Holding | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
| Advisory Fees Paid, Amount | $ 43,258,120 | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $32,516,469,361 # of Portfolio Holdings 28 Total Advisory Fees Paid $43,258,120 | ||||||||
| Holdings [Text Block] | Maturity Weightings Maturity Duration % Value of Total Net Assets 0 to 1 Year 107.7% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets U.S. Treasury Bills, due 08/08/24 10.9% U.S. Treasury Bills, due 08/01/24 9.2% U.S. Treasury Bills, due 09/05/24 7.7% U.S. Treasury Bills, due 09/12/24 6.5% U.S. Treasury Bills, due 09/26/24 6.3% U.S. Treasury Bills, due 08/29/24 6.2% U.S. Treasury Bills, due 08/22/24 6.0% U.S. Treasury Bills, due 08/15/24 5.7% U.S. Treasury Bills, due 08/20/24 5.4% U.S. Treasury Bills, due 09/19/24 5.4% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000126354 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR Bloomberg 1-10 Year TIPS ETF | ||||||||
| Trading Symbol | TIPX | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR Bloomberg 1-10 Year TIPS ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C550"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR Bloomberg 1-10 Year TIPS ETF $15 0.15% | ||||||||
| Expenses Paid, Amount | $ 15 | ||||||||
| Expense Ratio, Percent | 0.15% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Uncertainty around the future path of the U.S. Federal Reserve (“Fed”) policy as well as high interest rates were the primary drivers of Fund performance during the reporting period. Following record high inflation stemming from the 2020 pandemic, the Fed embarked on an aggressive hiking path that saw a 5.25% increase in interest rates, with the last 25 bp rate hike occurring in July 2023. The Fed has been on pause ever since, waiting for the economy to fully absorb the effects from their policy tightening. By the end of the reporting period, the Fed still deemed inflation too high for to start lowering interest rates and reiterated the importance of seeing more “good data”, with lower CPI and PCE readings being the most important indicators of a cooling economy. Fixed income markets were sensitive to data during the reporting period, as evidenced by moves in Treasury yields. Ten-year TIPS yields reached a high of 2.52% in October, dropped to a low of 1.64% in December, and ended the reporting period slightly higher at 2.11%, resulting in positive, albeit muted, returns for the strategy. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C555"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | TIPX Bloomberg U.S. Aggregate Bond Index Bloomberg 1-10 Year U.S. Government Inflation-Linked Bond Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $9,946 $9,975 $9,975 8/31/14 $9,959 $10,085 $9,979 9/30/14 $9,790 $10,017 $9,801 10/31/14 $9,801 $10,115 $9,846 11/30/14 $9,811 $10,187 $9,853 12/31/14 $9,662 $10,196 $9,700 1/31/15 $9,914 $10,410 $9,940 2/28/15 $9,813 $10,312 $9,854 3/31/15 $9,778 $10,360 $9,817 4/30/15 $9,848 $10,323 $9,902 5/31/15 $9,793 $10,298 $9,856 6/30/15 $9,747 $10,186 $9,803 7/31/15 $9,747 $10,257 $9,797 8/31/15 $9,747 $10,242 $9,744 9/30/15 $9,671 $10,311 $9,719 10/31/15 $9,677 $10,313 $9,721 11/30/15 $9,651 $10,286 $9,708 12/31/15 $9,723 $10,252 $9,649 1/31/16 $9,718 $10,393 $9,775 2/29/16 $9,840 $10,467 $9,856 3/31/16 $9,966 $10,564 $9,998 4/30/16 $9,956 $10,604 $10,026 5/31/16 $9,905 $10,607 $9,967 6/30/16 $10,108 $10,798 $10,129 7/31/16 $10,093 $10,866 $10,162 8/31/16 $10,026 $10,854 $10,110 9/30/16 $10,109 $10,847 $10,188 10/31/16 $10,089 $10,765 $10,174 11/30/16 $9,941 $10,510 $10,025 12/31/16 $9,941 $10,524 $10,035 1/31/17 $10,043 $10,546 $10,110 2/28/17 $10,063 $10,616 $10,135 3/31/17 $10,063 $10,611 $10,144 4/30/17 $10,097 $10,693 $10,188 5/31/17 $10,094 $10,775 $10,183 6/30/17 $10,019 $10,764 $10,102 7/31/17 $10,072 $10,810 $10,152 8/31/17 $10,145 $10,908 $10,223 9/30/17 $10,086 $10,855 $10,174 10/31/17 $10,101 $10,862 $10,189 11/30/17 $10,088 $10,848 $10,179 12/31/17 $10,143 $10,898 $10,229 1/31/18 $10,067 $10,772 $10,151 2/28/18 $10,025 $10,670 $10,103 3/31/18 $10,090 $10,738 $10,188 4/30/18 $10,072 $10,659 $10,173 5/31/18 $10,117 $10,734 $10,220 6/30/18 $10,150 $10,722 $10,251 7/31/18 $10,109 $10,724 $10,208 8/31/18 $10,171 $10,793 $10,278 9/30/18 $10,113 $10,724 $10,205 10/31/18 $10,028 $10,639 $10,124 11/30/18 $10,058 $10,702 $10,159 12/31/18 $10,100 $10,899 $10,199 1/31/19 $10,226 $11,015 $10,315 2/28/19 $10,215 $11,008 $10,325 3/31/19 $10,360 $11,220 $10,464 4/30/19 $10,396 $11,223 $10,509 5/31/19 $10,512 $11,422 $10,631 6/30/19 $10,614 $11,565 $10,733 7/31/19 $10,638 $11,591 $10,750 8/31/19 $10,764 $11,891 $10,894 9/30/19 $10,690 $11,828 $10,799 10/31/19 $10,705 $11,863 $10,830 11/30/19 $10,705 $11,857 $10,832 12/31/19 $10,780 $11,849 $10,906 1/31/20 $10,928 $12,077 $11,051 2/29/20 $11,000 $12,294 $11,150 3/31/20 $10,800 $12,222 $10,945 4/30/20 $11,029 $12,439 $11,171 5/31/20 $11,122 $12,497 $11,240 6/30/20 $11,230 $12,576 $11,362 7/31/20 $11,398 $12,764 $11,534 8/31/20 $11,545 $12,661 $11,695 9/30/20 $11,501 $12,654 $11,653 10/31/20 $11,455 $12,597 $11,605 11/30/20 $11,541 $12,721 $11,693 12/31/20 $11,691 $12,739 $11,840 1/31/21 $11,759 $12,647 $11,914 2/28/21 $11,669 $12,465 $11,822 3/31/21 $11,681 $12,309 $11,839 4/30/21 $11,835 $12,406 $11,998 5/31/21 $11,933 $12,447 $12,105 6/30/21 $11,946 $12,534 $12,114 7/31/21 $12,227 $12,674 $12,404 8/31/21 $12,203 $12,650 $12,375 9/30/21 $12,150 $12,541 $12,321 10/31/21 $12,239 $12,537 $12,420 11/30/21 $12,271 $12,574 $12,450 12/31/21 $12,330 $12,542 $12,514 1/31/22 $12,173 $12,272 $12,355 2/28/22 $12,299 $12,135 $12,473 3/31/22 $12,107 $11,798 $12,284 4/30/22 $11,977 $11,350 $12,175 5/31/22 $11,978 $11,423 $12,163 6/30/22 $11,683 $11,244 $11,861 7/31/22 $12,107 $11,519 $12,292 8/31/22 $11,824 $11,193 $12,001 9/30/22 $11,224 $10,710 $11,402 10/31/22 $11,357 $10,571 $11,527 11/30/22 $11,495 $10,960 $11,667 12/31/22 $11,392 $10,910 $11,590 1/31/23 $11,565 $11,246 $11,743 2/28/23 $11,435 $10,955 $11,608 3/31/23 $11,744 $11,234 $11,935 4/30/23 $11,767 $11,302 $11,954 5/31/23 $11,629 $11,179 $11,819 6/30/23 $11,575 $11,139 $11,764 7/31/23 $11,626 $11,131 $11,817 8/31/23 $11,582 $11,060 $11,770 9/30/23 $11,468 $10,779 $11,659 10/31/23 $11,458 $10,609 $11,648 11/30/23 $11,672 $11,089 $11,861 12/31/23 $11,897 $11,514 $12,098 1/31/24 $11,948 $11,482 $12,144 2/29/24 $11,845 $11,320 $12,040 3/31/24 $11,919 $11,424 $12,134 4/30/24 $11,813 $11,136 $12,019 5/31/24 $11,971 $11,324 $12,185 6/30/24 $12,064 $11,431 $12,274 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years TIPX 4.27% 2.59% 1.93% Bloomberg U.S. Aggregate Bond Index 2.63% (0.23%) 1.35% Bloomberg 1-10 Year U.S. Government Inflation-Linked Bond Index 4.33% 2.72% 2.07% | ||||||||
| AssetsNet | $ 1,378,197,564 | $ 1,378,197,564 | $ 1,378,197,564 | $ 1,378,197,564 | $ 1,378,197,564 | $ 1,378,197,564 | $ 1,378,197,564 | $ 1,378,197,564 | $ 1,378,197,564 |
| Holdings Count | Holding | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 |
| Advisory Fees Paid, Amount | $ 2,010,459 | ||||||||
| InvestmentCompanyPortfolioTurnover | 22% | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $1,378,197,564 # of Portfolio Holdings 34 Portfolio Turnover Rate 22% Total Advisory Fees Paid $2,010,459 | ||||||||
| Holdings [Text Block] | Maturity Weightings Maturity Duration % Value of Total Net Assets 1 to 2 Years 16.8% 2 to 3 Years 13.8% 3 to 5 Years 33.6% 5 to 10 Years 35.1% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets U.S. Treasury Inflation-Indexed Notes, 0.63%, due 01/15/26 4.6% U.S. Treasury Inflation-Indexed Notes, 0.13%, due 01/15/31 3.8% U.S. Treasury Inflation-Indexed Notes, 0.38%, due 07/15/25 3.7% U.S. Treasury Inflation-Indexed Notes, 1.75%, due 01/15/34 3.6% U.S. Treasury Inflation-Indexed Notes, 1.13%, due 01/15/33 3.5% U.S. Treasury Inflation-Indexed Notes, 0.63%, due 07/15/32 3.4% U.S. Treasury Inflation-Indexed Notes, 0.13%, due 07/15/31 3.4% U.S. Treasury Inflation-Indexed Notes, 0.88%, due 01/15/29 3.4% U.S. Treasury Inflation-Indexed Notes, 1.38%, due 07/15/33 3.4% U.S. Treasury Inflation-Indexed Notes, 0.25%, due 07/15/29 3.4% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000066456 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR Bloomberg Convertible Securities ETF | ||||||||
| Trading Symbol | CWB | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR Bloomberg Convertible Securities ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C574"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR Bloomberg Convertible Securities ETF $41 0.40% | ||||||||
| Expenses Paid, Amount | $ 41 | ||||||||
| Expense Ratio, Percent | 0.40% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Uncertainty around the future path of the U.S. Federal Reserve (“Fed”) policy as well as high interest rates were the primary drivers of Fund performance during the reporting period. Following record high inflation stemming from the 2020 pandemic, the Fed embarked on an aggressive hiking path that saw a 5.25% increase in interest rates, with the last 25 bp rate hike occurring in July 2023. The Fed has been on pause ever since, waiting for the economy to fully absorb the effects from their policy tightening. By the end of the reporting period, the Fed still deemed inflation too high for to start lowering interest rates and reiterated the importance of seeing more “good data”, with lower CPI and PCE readings being the most important indicators of a cooling economy. Markets were sensitive to data during the reporting period, and credit spreads increased to period highs in the fourth quarter as inflation remained stubborn. However, as inflation readings eased, so too did credit spreads. Equity indices saw large gains throughout the reporting period, with the S&P500 Index increasing over 22%, contributing to positive absolute returns for the convertible bond index. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C579"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | CWB Bloomberg U.S. Aggregate Bond Index Bloomberg U.S. Convertible Liquid Bond Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $9,856 $9,975 $9,872 8/31/14 $10,175 $10,085 $10,165 9/30/14 $9,892 $10,017 $9,874 10/31/14 $9,945 $10,115 $9,957 11/30/14 $10,073 $10,187 $10,073 12/31/14 $9,874 $10,196 $9,879 1/31/15 $9,747 $10,410 $9,786 2/28/15 $10,109 $10,312 $10,153 3/31/15 $10,102 $10,360 $10,106 4/30/15 $10,251 $10,323 $10,228 5/31/15 $10,445 $10,298 $10,482 6/30/15 $10,110 $10,186 $10,173 7/31/15 $10,080 $10,257 $10,147 8/31/15 $9,809 $10,242 $9,838 9/30/15 $9,580 $10,311 $9,640 10/31/15 $9,999 $10,313 $10,041 11/30/15 $9,940 $10,286 $9,988 12/31/15 $9,806 $10,252 $9,853 1/31/16 $9,300 $10,393 $9,370 2/29/16 $9,373 $10,467 $9,424 3/31/16 $9,874 $10,564 $9,894 4/30/16 $9,953 $10,604 $9,997 5/31/16 $10,039 $10,607 $10,105 6/30/16 $10,093 $10,798 $10,141 7/31/16 $10,534 $10,866 $10,584 8/31/16 $10,661 $10,854 $10,715 9/30/16 $10,784 $10,847 $10,862 10/31/16 $10,662 $10,765 $10,745 11/30/16 $10,715 $10,510 $10,760 12/31/16 $10,856 $10,524 $10,910 1/31/17 $11,160 $10,546 $11,251 2/28/17 $11,396 $10,616 $11,466 3/31/17 $11,490 $10,611 $11,573 4/30/17 $11,686 $10,693 $11,787 5/31/17 $11,792 $10,775 $11,901 6/30/17 $11,951 $10,764 $12,054 7/31/17 $12,302 $10,810 $12,440 8/31/17 $12,343 $10,908 $12,492 9/30/17 $12,399 $10,855 $12,557 10/31/17 $12,604 $10,862 $12,815 11/30/17 $12,599 $10,848 $12,796 12/31/17 $12,560 $10,898 $12,798 1/31/18 $13,187 $10,772 $13,425 2/28/18 $12,866 $10,670 $13,121 3/31/18 $12,874 $10,738 $13,098 4/30/18 $12,851 $10,659 $13,098 5/31/18 $13,326 $10,734 $13,583 6/30/18 $13,291 $10,722 $13,567 7/31/18 $13,356 $10,724 $13,614 8/31/18 $13,681 $10,793 $13,929 9/30/18 $13,595 $10,724 $13,851 10/31/18 $12,699 $10,639 $12,994 11/30/18 $13,015 $10,702 $13,291 12/31/18 $12,316 $10,899 $12,568 1/31/19 $13,294 $11,015 $13,571 2/28/19 $13,770 $11,008 $14,101 3/31/19 $13,794 $11,220 $14,091 4/30/19 $14,149 $11,223 $14,484 5/31/19 $13,418 $11,422 $13,756 6/30/19 $14,043 $11,565 $14,388 7/31/19 $14,256 $11,591 $14,594 8/31/19 $14,042 $11,891 $14,381 9/30/19 $13,997 $11,828 $14,298 10/31/19 $14,227 $11,863 $14,582 11/30/19 $14,624 $11,857 $14,985 12/31/19 $15,052 $11,849 $15,431 1/31/20 $15,551 $12,077 $15,949 2/29/20 $15,038 $12,294 $15,461 3/31/20 $13,023 $12,222 $13,426 4/30/20 $14,503 $12,439 $14,921 5/31/20 $15,554 $12,497 $15,999 6/30/20 $16,550 $12,576 $16,979 7/31/20 $17,785 $12,764 $18,335 8/31/20 $19,424 $12,661 $20,086 9/30/20 $18,948 $12,654 $19,548 10/31/20 $18,915 $12,597 $19,556 11/30/20 $21,554 $12,721 $22,255 12/31/20 $23,076 $12,739 $23,834 1/31/21 $23,567 $12,647 $24,446 2/28/21 $24,270 $12,465 $25,175 3/31/21 $23,293 $12,309 $24,182 4/30/21 $23,894 $12,406 $24,895 5/31/21 $23,630 $12,447 $24,565 6/30/21 $24,366 $12,534 $25,317 7/31/21 $24,075 $12,674 $25,049 8/31/21 $24,536 $12,650 $25,519 9/30/21 $24,041 $12,541 $24,979 10/31/21 $24,817 $12,537 $25,795 11/30/21 $23,696 $12,574 $24,664 12/31/21 $23,588 $12,542 $24,566 1/31/22 $21,844 $12,272 $22,828 2/28/22 $21,763 $12,135 $22,744 3/31/22 $22,015 $11,798 $22,925 4/30/22 $20,271 $11,350 $21,258 5/31/22 $19,671 $11,423 $20,523 6/30/22 $18,501 $11,244 $19,342 7/31/22 $19,474 $11,519 $20,329 8/31/22 $19,529 $11,193 $20,439 9/30/22 $18,195 $10,710 $19,204 10/31/22 $18,763 $10,571 $19,732 11/30/22 $19,223 $10,960 $20,158 12/31/22 $18,702 $10,910 $19,639 1/31/23 $19,832 $11,246 $20,818 2/28/23 $19,472 $10,955 $20,499 3/31/23 $19,553 $11,234 $20,544 4/30/23 $19,273 $11,302 $20,271 5/31/23 $19,538 $11,179 $20,451 6/30/23 $20,523 $11,139 $21,539 7/31/23 $21,095 $11,131 $22,129 8/31/23 $20,469 $11,060 $21,533 9/30/23 $19,932 $10,779 $21,006 10/31/23 $19,118 $10,609 $20,177 11/30/23 $20,164 $11,089 $21,250 12/31/23 $21,402 $11,514 $22,514 1/31/24 $21,130 $11,482 $22,224 2/29/24 $21,294 $11,320 $22,429 3/31/24 $21,742 $11,424 $22,854 4/30/24 $20,927 $11,136 $22,048 5/31/24 $21,390 $11,324 $22,491 6/30/24 $21,538 $11,431 $22,717 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years CWB 5.32% 8.98% 8.04% Bloomberg U.S. Aggregate Bond Index 2.63% (0.23%) 1.35% Bloomberg U.S. Convertible Liquid Bond Index 5.45% 9.56% 8.55% | ||||||||
| AssetsNet | $ 3,424,580,271 | $ 3,424,580,271 | $ 3,424,580,271 | $ 3,424,580,271 | $ 3,424,580,271 | $ 3,424,580,271 | $ 3,424,580,271 | $ 3,424,580,271 | $ 3,424,580,271 |
| Holdings Count | Holding | 299 | 299 | 299 | 299 | 299 | 299 | 299 | 299 | 299 |
| Advisory Fees Paid, Amount | $ 15,413,536 | ||||||||
| InvestmentCompanyPortfolioTurnover | 30% | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $3,424,580,271 # of Portfolio Holdings 299 Portfolio Turnover Rate 30% Total Advisory Fees Paid $15,413,536 | ||||||||
| Holdings [Text Block] | Top Ten Sectors Sector % Value of Total Net Assets Communications 21.6% Technology 20.8% Consumer, Non-Cyclical 16.6% Consumer, Cyclical 12.4% Utilities 9.8% Financial Services 9.5% Industrial 4.5% Energy 2.1% Materials 0.9% Basic Materials 0.7% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets Alibaba Group Holding Ltd., 0.50%, due 06/01/31 2.0% Wells Fargo & Co., A, 7.50%, due 12/31/49 1.9% Royal Caribbean Cruises Ltd., 6.00%, due 08/15/25 1.6% Bank of America Corp., 7.25%, due 12/31/49 1.5% Palo Alto Networks, Inc., 0.38%, due 06/01/25 1.5% Western Digital Corp., 3.00%, due 11/15/28 1.1% Ford Motor Co., due 03/15/26 1.0% PG&E Corp., 4.25%, due 12/01/27 0.9% Uber Technologies, Inc., 0.88%, due 12/01/28 0.9% Albemarle Corp., 7.25%, due 03/01/27 0.9% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000047970 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR Nuveen Bloomberg Municipal Bond ETF | ||||||||
| Trading Symbol | TFI | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR Nuveen Bloomberg Municipal Bond ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C598"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR Nuveen Bloomberg Municipal Bond ETF $23 0.23% | ||||||||
| Expenses Paid, Amount | $ 23 | ||||||||
| Expense Ratio, Percent | 0.23% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? The reporting period has been a period of shifting markets, as interest rates expectations moved drastically during this time period. We saw a large sell off to start the reporting period, before a significant rally to end the calendar year. 2024 saw a slight sell off throughout the first half of 2024. Despite this municipal performance held in due to higher income. Spreads tightened in 2024, providing better performance for high yield municipals. The yield curve became barbelled, with yields on the short and long ends providing more yield than the belly of the curve. Curve exposure hurt performance slightly, as bonds with durations between 2 and 8 years hurt performance. Exposure to long bonds offset some of this. Exposure to transportation, electric and water and sewer bonds hurt performance. Special tax and Local general obligation exposure aided. Residual impacts were slightly positive to performance. Top contributors include New York City general obligation, New York State Thruway and University of California bonds. Bonds purchased in the fall also aided performance as markets rallied after bottoming. Largest Detractors were Pflugerville Independent School District, Nashville General Obligation and Wisconsin Transit bonds. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C603"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | TFI Bloomberg U.S. Aggregate Bond Index Bloomberg Municipal Managed Money 1-25 Years Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $10,037 $9,975 $10,026 8/31/14 $10,176 $10,085 $10,173 9/30/14 $10,183 $10,017 $10,166 10/31/14 $10,238 $10,115 $10,241 11/30/14 $10,249 $10,187 $10,248 12/31/14 $10,336 $10,196 $10,309 1/31/15 $10,545 $10,410 $10,533 2/28/15 $10,386 $10,312 $10,372 3/31/15 $10,399 $10,360 $10,412 4/30/15 $10,333 $10,323 $10,331 5/31/15 $10,263 $10,298 $10,300 6/30/15 $10,248 $10,186 $10,283 7/31/15 $10,373 $10,257 $10,382 8/31/15 $10,363 $10,242 $10,411 9/30/15 $10,474 $10,311 $10,503 10/31/15 $10,520 $10,313 $10,542 11/30/15 $10,558 $10,286 $10,597 12/31/15 $10,682 $10,252 $10,691 1/31/16 $10,805 $10,393 $10,848 2/29/16 $10,825 $10,467 $10,857 3/31/16 $10,852 $10,564 $10,897 4/30/16 $10,964 $10,604 $10,994 5/31/16 $10,973 $10,607 $11,019 6/30/16 $11,191 $10,798 $11,229 7/31/16 $11,188 $10,866 $11,227 8/31/16 $11,210 $10,854 $11,235 9/30/16 $11,137 $10,847 $11,170 10/31/16 $11,012 $10,765 $11,020 11/30/16 $10,540 $10,510 $10,528 12/31/16 $10,646 $10,524 $10,692 1/31/17 $10,698 $10,546 $10,756 2/28/17 $10,753 $10,616 $10,826 3/31/17 $10,787 $10,611 $10,852 4/30/17 $10,875 $10,693 $10,947 5/31/17 $11,077 $10,775 $11,153 6/30/17 $11,019 $10,764 $11,104 7/31/17 $11,122 $10,810 $11,202 8/31/17 $11,206 $10,908 $11,283 9/30/17 $11,126 $10,855 $11,209 10/31/17 $11,156 $10,862 $11,241 11/30/17 $11,092 $10,848 $11,174 12/31/17 $11,225 $10,898 $11,320 1/31/18 $11,054 $10,772 $11,139 2/28/18 $10,979 $10,670 $11,091 3/31/18 $11,044 $10,738 $11,144 4/30/18 $10,984 $10,659 $11,094 5/31/18 $11,115 $10,734 $11,237 6/30/18 $11,100 $10,722 $11,237 7/31/18 $11,122 $10,724 $11,257 8/31/18 $11,151 $10,793 $11,284 9/30/18 $11,051 $10,724 $11,197 10/31/18 $10,957 $10,639 $11,114 11/30/18 $11,112 $10,702 $11,263 12/31/18 $11,287 $10,899 $11,421 1/31/19 $11,349 $11,015 $11,524 2/28/19 $11,408 $11,008 $11,590 3/31/19 $11,601 $11,220 $11,784 4/30/19 $11,663 $11,223 $11,823 5/31/19 $11,839 $11,422 $11,994 6/30/19 $11,866 $11,565 $12,036 7/31/19 $11,982 $11,591 $12,148 8/31/19 $12,189 $11,891 $12,351 9/30/19 $12,069 $11,828 $12,226 10/31/19 $12,087 $11,863 $12,246 11/30/19 $12,087 $11,857 $12,275 12/31/19 $12,132 $11,849 $12,315 1/31/20 $12,380 $12,077 $12,561 2/29/20 $12,468 $12,294 $12,726 3/31/20 $12,026 $12,222 $12,352 4/30/20 $11,950 $12,439 $12,233 5/31/20 $12,493 $12,497 $12,698 6/30/20 $12,487 $12,576 $12,728 7/31/20 $12,687 $12,764 $12,943 8/31/20 $12,618 $12,661 $12,849 9/30/20 $12,613 $12,654 $12,853 10/31/20 $12,553 $12,597 $12,798 11/30/20 $12,770 $12,721 $13,010 12/31/20 $12,834 $12,739 $13,064 1/31/21 $12,856 $12,647 $13,119 2/28/21 $12,618 $12,465 $12,851 3/31/21 $12,673 $12,309 $12,934 4/30/21 $12,781 $12,406 $13,051 5/31/21 $12,809 $12,447 $13,083 6/30/21 $12,841 $12,534 $13,104 7/31/21 $12,920 $12,674 $13,229 8/31/21 $12,878 $12,650 $13,171 9/30/21 $12,762 $12,541 $13,052 10/31/21 $12,749 $12,537 $13,011 11/30/21 $12,848 $12,574 $13,143 12/31/21 $12,868 $12,542 $13,167 1/31/22 $12,494 $12,272 $12,747 2/28/22 $12,397 $12,135 $12,709 3/31/22 $11,940 $11,798 $12,239 4/30/22 $11,523 $11,350 $11,854 5/31/22 $11,731 $11,423 $12,069 6/30/22 $11,487 $11,244 $11,857 7/31/22 $11,833 $11,519 $12,215 8/31/22 $11,472 $11,193 $11,913 9/30/22 $11,063 $10,710 $11,427 10/31/22 $10,988 $10,571 $11,362 11/30/22 $11,595 $10,960 $11,941 12/31/22 $11,553 $10,910 $11,983 1/31/23 $11,928 $11,246 $12,358 2/28/23 $11,580 $10,955 $12,032 3/31/23 $11,892 $11,234 $12,342 4/30/23 $11,847 $11,302 $12,298 5/31/23 $11,711 $11,179 $12,150 6/30/23 $11,815 $11,139 $12,272 7/31/23 $11,813 $11,131 $12,313 8/31/23 $11,631 $11,060 $12,095 9/30/23 $11,257 $10,779 $11,680 10/31/23 $11,129 $10,609 $11,589 11/30/23 $11,866 $11,089 $12,421 12/31/23 $12,223 $11,514 $12,754 1/31/24 $12,173 $11,482 $12,665 2/29/24 $12,173 $11,320 $12,668 3/31/24 $12,128 $11,424 $12,642 4/30/24 $11,943 $11,136 $12,449 5/31/24 $11,869 $11,324 $12,367 6/30/24 $12,032 $11,431 $12,577 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years TFI 2.19% 0.30% 1.89% Bloomberg U.S. Aggregate Bond Index 2.63% (0.23%) 1.35% Bloomberg Municipal Managed Money 1-25 Years Index 2.48% 0.88% 2.32% | ||||||||
| AssetsNet | $ 3,531,267,658 | $ 3,531,267,658 | $ 3,531,267,658 | $ 3,531,267,658 | $ 3,531,267,658 | $ 3,531,267,658 | $ 3,531,267,658 | $ 3,531,267,658 | $ 3,531,267,658 |
| Holdings Count | Holding | 1,484 | 1,484 | 1,484 | 1,484 | 1,484 | 1,484 | 1,484 | 1,484 | 1,484 |
| Advisory Fees Paid, Amount | $ 8,277,688 | ||||||||
| InvestmentCompanyPortfolioTurnover | 24% | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $3,531,267,658 # of Portfolio Holdings 1,484 Portfolio Turnover Rate 24% Total Advisory Fees Paid $8,277,688 | ||||||||
| Holdings [Text Block] | Top Ten States (%) State % Value of Total Net Assets New York 21.0% California 18.8% Texas 12.8% Washington 4.9% Massachusetts 3.8% Florida 2.6% Maryland 2.5% Connecticut 2.4% Ohio 2.3% Virginia 2.2% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets University of California, 5.00%, due 05/15/29 0.9% New York City Municipal Water Finance Authority, 5.00%, due 06/15/35 0.6% City of New York, 5.25%, due 04/01/44 0.6% City of New York, 5.00%, due 08/01/29 0.5% City of New York, 5.00%, due 08/01/31 0.5% University of California, 5.00%, due 05/15/43 0.5% City of New York, 5.00%, due 08/01/30 0.5% Salt River Project Agricultural Improvement & Power District, 5.00%, due 01/01/31 0.5% State of Washington, 5.00%, due 08/01/44 0.5% State of California, 4.00%, due 03/01/36 0.5% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000047964 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR Nuveen Bloomberg Short Term Municipal Bond ETF | ||||||||
| Trading Symbol | SHM | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR Nuveen Bloomberg Short Term Municipal Bond ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C622"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR Nuveen Bloomberg Short Term Municipal Bond ETF $20 0.20% | ||||||||
| Expenses Paid, Amount | $ 20 | ||||||||
| Expense Ratio, Percent | 0.20% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? The reporting period has been a period of shifting markets, as interest rates expectations moved drastically during this time period. We saw a large sell off to start the reporting period, before a significant rally to end the calendar year. 2024 saw a slight sell off throughout the first half of 2024. Despite this municipal performance held in due to higher income. Spreads tightened in 2024, providing better performance for high yield municipals. The yield curve became barbelled, with yields on the short and long ends providing more yield than the belly of the curve. The fund’s duration positioning was in line with the benchmark, though exposure in 2 to 4 year duration bonds maturing in 4 to 6 years hurt performance. Exposure in transportation bonds hurt performance, whereas exposure to special tax, water and sewer, education and leasing bonds all aided performance. Residual impacts on the portfolio were slightly beneficial to performance. Top contributors to performance included New York City Water, Yale University and Chino Basin Inland Empire Utility. The largest detractors from performance include University of California General Obligation, California Various Purpose and Massachusetts General Obligation bonds. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C627"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | SHM Bloomberg U.S. Aggregate Bond Index Bloomberg Managed Money Municipal Short Term Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $10,033 $9,975 $10,011 8/31/14 $10,069 $10,085 $10,045 9/30/14 $10,051 $10,017 $10,037 10/31/14 $10,064 $10,115 $10,049 11/30/14 $10,071 $10,187 $10,054 12/31/14 $10,028 $10,196 $10,017 1/31/15 $10,115 $10,410 $10,104 2/28/15 $10,080 $10,312 $10,070 3/31/15 $10,061 $10,360 $10,065 4/30/15 $10,035 $10,323 $10,059 5/31/15 $10,030 $10,298 $10,043 6/30/15 $10,066 $10,186 $10,068 7/31/15 $10,099 $10,257 $10,106 8/31/15 $10,111 $10,242 $10,115 9/30/15 $10,127 $10,311 $10,149 10/31/15 $10,168 $10,313 $10,181 11/30/15 $10,147 $10,286 $10,157 12/31/15 $10,159 $10,252 $10,154 1/31/16 $10,200 $10,393 $10,231 2/29/16 $10,233 $10,467 $10,266 3/31/16 $10,200 $10,564 $10,231 4/30/16 $10,227 $10,604 $10,262 5/31/16 $10,221 $10,607 $10,246 6/30/16 $10,276 $10,798 $10,305 7/31/16 $10,306 $10,866 $10,336 8/31/16 $10,303 $10,854 $10,375 9/30/16 $10,252 $10,847 $10,323 10/31/16 $10,227 $10,765 $10,304 11/30/16 $10,039 $10,510 $10,135 12/31/16 $10,094 $10,524 $10,173 1/31/17 $10,166 $10,546 $10,256 2/28/17 $10,212 $10,616 $10,314 3/31/17 $10,218 $10,611 $10,310 4/30/17 $10,252 $10,693 $10,350 5/31/17 $10,312 $10,775 $10,412 6/30/17 $10,260 $10,764 $10,377 7/31/17 $10,323 $10,810 $10,429 8/31/17 $10,365 $10,908 $10,377 9/30/17 $10,308 $10,855 $10,416 10/31/17 $10,297 $10,862 $10,410 11/30/17 $10,184 $10,848 $10,305 12/31/17 $10,198 $10,898 $10,332 1/31/18 $10,219 $10,772 $10,340 2/28/18 $10,221 $10,670 $10,337 3/31/18 $10,200 $10,738 $10,326 4/30/18 $10,164 $10,659 $10,293 5/31/18 $10,225 $10,734 $10,358 6/30/18 $10,259 $10,722 $10,396 7/31/18 $10,286 $10,724 $10,427 8/31/18 $10,281 $10,793 $10,420 9/30/18 $10,232 $10,724 $10,375 10/31/18 $10,211 $10,639 $10,364 11/30/18 $10,272 $10,702 $10,426 12/31/18 $10,367 $10,899 $10,501 1/31/19 $10,401 $11,015 $10,567 2/28/19 $10,440 $11,008 $10,599 3/31/19 $10,480 $11,220 $10,645 4/30/19 $10,487 $11,223 $10,642 5/31/19 $10,564 $11,422 $10,717 6/30/19 $10,603 $11,565 $10,764 7/31/19 $10,676 $11,591 $10,831 8/31/19 $10,690 $11,891 $10,857 9/30/19 $10,654 $11,828 $10,793 10/31/19 $10,685 $11,863 $10,843 11/30/19 $10,698 $11,857 $10,865 12/31/19 $10,731 $11,849 $10,887 1/31/20 $10,800 $12,077 $10,967 2/29/20 $10,817 $12,294 $11,001 3/31/20 $10,698 $12,222 $10,879 4/30/20 $10,731 $12,439 $10,899 5/31/20 $10,967 $12,497 $11,142 6/30/20 $10,949 $12,576 $11,134 7/31/20 $11,009 $12,764 $11,196 8/31/20 $10,991 $12,661 $11,185 9/30/20 $10,992 $12,654 $11,199 10/31/20 $10,957 $12,597 $11,176 11/30/20 $11,003 $12,721 $11,207 12/31/20 $11,013 $12,739 $11,219 1/31/21 $11,032 $12,647 $11,234 2/28/21 $10,964 $12,465 $11,169 3/31/21 $10,980 $12,309 $11,197 4/30/21 $11,008 $12,406 $11,225 5/31/21 $11,003 $12,447 $11,224 6/30/21 $11,003 $12,534 $11,176 7/31/21 $11,038 $12,674 $11,222 8/31/21 $11,023 $12,650 $11,216 9/30/21 $10,989 $12,541 $11,184 10/31/21 $10,973 $12,537 $11,164 11/30/21 $10,975 $12,574 $11,172 12/31/21 $10,979 $12,542 $11,178 1/31/22 $10,771 $12,272 $10,978 2/28/22 $10,742 $12,135 $10,945 3/31/22 $10,570 $11,798 $10,754 4/30/22 $10,442 $11,350 $10,637 5/31/22 $10,575 $11,423 $10,775 6/30/22 $10,573 $11,244 $10,765 7/31/22 $10,696 $11,519 $10,904 8/31/22 $10,527 $11,193 $10,747 9/30/22 $10,331 $10,710 $10,533 10/31/22 $10,328 $10,571 $10,531 11/30/22 $10,537 $10,960 $10,751 12/31/22 $10,558 $10,910 $10,773 1/31/23 $10,715 $11,246 $10,936 2/28/23 $10,496 $10,955 $10,752 3/31/23 $10,686 $11,234 $10,929 4/30/23 $10,616 $11,302 $10,865 5/31/23 $10,545 $11,179 $10,785 6/30/23 $10,607 $11,139 $10,853 7/31/23 $10,606 $11,131 $10,876 8/31/23 $10,599 $11,060 $10,838 9/30/23 $10,474 $10,779 $10,709 10/31/23 $10,470 $10,609 $10,719 11/30/23 $10,754 $11,089 $11,021 12/31/23 $10,881 $11,514 $11,140 1/31/24 $10,841 $11,482 $11,104 2/29/24 $10,852 $11,320 $11,112 3/31/24 $10,816 $11,424 $11,081 4/30/24 $10,757 $11,136 $11,023 5/31/24 $10,721 $11,324 $10,996 6/30/24 $10,801 $11,431 $11,091 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years SHM 1.97% 0.39% 0.77% Bloomberg U.S. Aggregate Bond Index 2.63% (0.23%) 1.35% Bloomberg Managed Money Municipal Short Term Index 2.18% 0.68% 1.04% | ||||||||
| AssetsNet | $ 3,784,936,985 | $ 3,784,936,985 | $ 3,784,936,985 | $ 3,784,936,985 | $ 3,784,936,985 | $ 3,784,936,985 | $ 3,784,936,985 | $ 3,784,936,985 | $ 3,784,936,985 |
| Holdings Count | Holding | 794 | 794 | 794 | 794 | 794 | 794 | 794 | 794 | 794 |
| Advisory Fees Paid, Amount | $ 7,796,194 | ||||||||
| InvestmentCompanyPortfolioTurnover | 40% | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $3,784,936,985 # of Portfolio Holdings 794 Portfolio Turnover Rate 40% Total Advisory Fees Paid $7,796,194 | ||||||||
| Holdings [Text Block] | Top Ten States (%) State % Value of Total Net Assets California 21.1% New York 17.6% Texas 10.8% Washington 4.8% Connecticut 3.7% Maryland 3.4% Massachusetts 3.0% Virginia 2.8% Florida 2.3% Georgia 2.3% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets State of California, 5.00%, due 09/01/28 1.3% State of California, 5.00%, due 10/01/27 1.2% New York City Municipal Water Finance Authority, 5.00%, due 06/15/26 1.1% City of New York, 5.00%, due 08/01/27 1.1% New York City Transitional Finance Authority Future Tax Secured Revenue, 5.00%, due 11/01/27 0.8% Triborough Bridge & Tunnel Authority, 4.00%, due 05/15/27 0.7% University of California, 5.00%, due 05/15/28 0.7% Triborough Bridge & Tunnel Authority, 5.00%, due 11/15/28 0.7% Chino Basin Regional Financing Authority, 4.00%, due 11/01/25 0.6% Los Angeles Unified School District, 5.00%, due 07/01/26 0.6% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000088522 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR Nuveen Bloomberg High Yield Municipal Bond ETF | ||||||||
| Trading Symbol | HYMB | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR Nuveen Bloomberg High Yield Municipal Bond ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C646"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR Nuveen Bloomberg High Yield Municipal Bond ETF $36 0.35% | ||||||||
| Expenses Paid, Amount | $ 36 | ||||||||
| Expense Ratio, Percent | 0.35% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? The reporting period has been a period of shifting markets, as interest rates expectations moved drastically during this time period. We saw a large sell off to start the reporting period, before a significant rally to end the calendar year. 2024 saw a slight sell off throughout the first half of 2024. Despite this municipal performance held in due to higher income. Spreads tightened in 2024, providing better performance for high yield municipals. The yield curve became barbelled, with yields on the short and long ends providing more yield than the belly of the curve. Exposure to bonds with durations less than 2 years hurt performance, however in 2 to 8 years it aided performance, as did bonds with durations greater than 10 years. Exposure to unrated bonds and bonds rated double-A, single-A and triple-B hurt performance, whereas exposure in bonds rated double-B and single-B aided performance. Residual impacts were a detractor from performance. Largest contributors include Puerto Rico Sales Tax, Florida Brightline and New Hope Sanctuary Long Term care. Largest detractors include Fulcrum Sierra, Illinoi Christian Homes and Sumter County IDA Enviva Project. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C651"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | HYMB Bloomberg U.S. Aggregate Bond Index Bloomberg Municipal Yield Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $9,923 $9,975 $10,055 8/31/14 $10,118 $10,085 $10,309 9/30/14 $10,212 $10,017 $10,358 10/31/14 $10,276 $10,115 $10,370 11/30/14 $10,363 $10,187 $10,438 12/31/14 $10,493 $10,196 $10,511 1/31/15 $10,745 $10,410 $10,691 2/28/15 $10,592 $10,312 $10,637 3/31/15 $10,567 $10,360 $10,642 4/30/15 $10,559 $10,323 $10,597 5/31/15 $10,567 $10,298 $10,633 6/30/15 $10,306 $10,186 $10,466 7/31/15 $10,387 $10,257 $10,514 8/31/15 $10,472 $10,242 $10,565 9/30/15 $10,639 $10,311 $10,711 10/31/15 $10,744 $10,313 $10,801 11/30/15 $10,760 $10,286 $10,853 12/31/15 $10,896 $10,252 $10,928 1/31/16 $10,909 $10,393 $11,002 2/29/16 $10,978 $10,467 $11,069 3/31/16 $11,084 $10,564 $11,177 4/30/16 $11,242 $10,604 $11,268 5/31/16 $11,337 $10,607 $11,382 6/30/16 $11,616 $10,798 $11,674 7/31/16 $11,626 $10,866 $11,716 8/31/16 $11,645 $10,854 $11,778 9/30/16 $11,637 $10,847 $11,801 10/31/16 $11,499 $10,765 $11,702 11/30/16 $10,740 $10,510 $11,217 12/31/16 $11,121 $10,524 $11,277 1/31/17 $11,157 $10,546 $11,388 2/28/17 $11,315 $10,616 $11,562 3/31/17 $11,315 $10,611 $11,594 4/30/17 $11,403 $10,693 $11,717 5/31/17 $11,535 $10,775 $11,841 6/30/17 $11,476 $10,764 $11,833 7/31/17 $11,574 $10,810 $11,906 8/31/17 $11,705 $10,908 $12,023 9/30/17 $11,588 $10,855 $11,918 10/31/17 $11,363 $10,862 $11,910 11/30/17 $11,385 $10,848 $11,942 12/31/17 $11,480 $10,898 $12,068 1/31/18 $11,459 $10,772 $12,039 2/28/18 $11,445 $10,670 $12,022 3/31/18 $11,583 $10,738 $12,150 4/30/18 $11,614 $10,659 $12,186 5/31/18 $11,781 $10,734 $12,379 6/30/18 $11,835 $10,722 $12,450 7/31/18 $11,887 $10,724 $12,517 8/31/18 $11,967 $10,793 $12,609 9/30/18 $11,912 $10,724 $12,548 10/31/18 $11,817 $10,639 $12,396 11/30/18 $11,843 $10,702 $12,440 12/31/18 $12,040 $10,899 $12,564 1/31/19 $11,985 $11,015 $12,636 2/28/19 $12,140 $11,008 $12,753 3/31/19 $12,414 $11,220 $13,054 4/30/19 $12,483 $11,223 $13,124 5/31/19 $12,693 $11,422 $13,347 6/30/19 $12,754 $11,565 $13,427 7/31/19 $12,833 $11,591 $13,524 8/31/19 $13,094 $11,891 $13,823 9/30/19 $13,085 $11,828 $13,791 10/31/19 $13,077 $11,863 $13,817 11/30/19 $13,133 $11,857 $13,869 12/31/19 $13,179 $11,849 $13,916 1/31/20 $13,477 $12,077 $14,246 2/29/20 $13,621 $12,294 $14,534 3/31/20 $12,322 $12,222 $13,097 4/30/20 $11,920 $12,439 $12,674 5/31/20 $12,312 $12,497 $13,153 6/30/20 $12,782 $12,576 $13,623 7/31/20 $13,043 $12,764 $13,997 8/31/20 $13,022 $12,661 $14,017 9/30/20 $13,017 $12,654 $14,023 10/31/20 $12,987 $12,597 $14,031 11/30/20 $13,370 $12,721 $14,348 12/31/20 $13,658 $12,739 $14,597 1/31/21 $13,884 $12,647 $14,875 2/28/21 $13,647 $12,465 $14,703 3/31/21 $13,828 $12,309 $14,851 4/30/21 $13,967 $12,406 $15,054 5/31/21 $14,142 $12,447 $15,201 6/30/21 $14,280 $12,534 $15,363 7/31/21 $14,368 $12,674 $15,543 8/31/21 $14,337 $12,650 $15,509 9/30/21 $14,191 $12,541 $15,403 10/31/21 $14,134 $12,537 $15,337 11/30/21 $14,266 $12,574 $15,526 12/31/21 $14,364 $12,542 $15,563 1/31/22 $13,859 $12,272 $15,124 2/28/22 $13,811 $12,135 $15,074 3/31/22 $13,236 $11,798 $14,532 4/30/22 $12,759 $11,350 $14,040 5/31/22 $12,870 $11,423 $14,192 6/30/22 $12,457 $11,244 $13,783 7/31/22 $12,904 $11,519 $14,271 8/31/22 $12,538 $11,193 $13,949 9/30/22 $11,730 $10,710 $13,157 10/31/22 $11,498 $10,571 $12,907 11/30/22 $12,293 $10,960 $13,641 12/31/22 $12,154 $10,910 $13,632 1/31/23 $12,678 $11,246 $14,201 2/28/23 $12,264 $10,955 $13,788 3/31/23 $12,457 $11,234 $14,036 4/30/23 $12,496 $11,302 $14,088 5/31/23 $12,433 $11,179 $13,990 6/30/23 $12,616 $11,139 $14,221 7/31/23 $12,652 $11,131 $14,318 8/31/23 $12,514 $11,060 $14,095 9/30/23 $12,108 $10,779 $13,618 10/31/23 $11,834 $10,609 $13,413 11/30/23 $12,678 $11,089 $14,440 12/31/23 $13,096 $11,514 $14,855 1/31/24 $13,187 $11,482 $14,786 2/29/24 $13,251 $11,320 $14,882 3/31/24 $13,363 $11,424 $15,031 4/30/24 $13,141 $11,136 $14,907 5/31/24 $13,224 $11,324 $14,989 6/30/24 $13,382 $11,431 $15,326 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years HYMB 6.88% 1.12% 3.04% Bloomberg U.S. Aggregate Bond Index 2.63% (0.23%) 1.35% Bloomberg Municipal Yield Index 7.78% 2.68% 4.36% | ||||||||
| AssetsNet | $ 2,682,627,660 | $ 2,682,627,660 | $ 2,682,627,660 | $ 2,682,627,660 | $ 2,682,627,660 | $ 2,682,627,660 | $ 2,682,627,660 | $ 2,682,627,660 | $ 2,682,627,660 |
| Holdings Count | Holding | 1,874 | 1,874 | 1,874 | 1,874 | 1,874 | 1,874 | 1,874 | 1,874 | 1,874 |
| Advisory Fees Paid, Amount | $ 8,009,829 | ||||||||
| InvestmentCompanyPortfolioTurnover | 7% | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $2,682,627,660 # of Portfolio Holdings 1,874 Portfolio Turnover Rate 7% Total Advisory Fees Paid $8,009,829 | ||||||||
| Holdings [Text Block] | Top Ten States (%) State % Value of Total Net Assets Puerto Rico 11.5% California 11.2% New York 9.1% Illinois 6.7% Florida 5.9% Ohio 4.9% Texas 4.6% Wisconsin 3.6% Colorado 3.5% Pennsylvania 4.5% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets Puerto Rico Sales Tax Financing Corp. Sales Tax Revenue, 5.00%, due 07/01/58 2.0% Buckeye Tobacco Settlement Financing Authority, 2, 5.00%, due 06/01/55 1.7% Puerto Rico Sales Tax Financing Corp. Sales Tax Revenue, 4.78%, due 07/01/58 1.3% Puerto Rico Sales Tax Financing Corp. Sales Tax Revenue, 4.75%, due 07/01/53 0.9% Puerto Rico Sales Tax Financing Corp. Sales Tax Revenue, 4.33%, due 07/01/40 0.8% Commonwealth of Puerto Rico, 4.00%, due 07/01/41 0.8% Commonwealth of Puerto Rico, 4.00%, due 07/01/46 0.6% New York Liberty Development Corp., 1-3, 5.00%, due 11/15/44 0.6% Metropolitan Pier & Exposition Authority, 4.00%, due 12/15/42 0.6% New York Transportation Development Corp., 5.63%, due 04/01/40 0.5% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000055013 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR Bloomberg High Yield Bond ETF | ||||||||
| Trading Symbol | JNK | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR Bloomberg High Yield Bond ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C670"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR Bloomberg High Yield Bond ETF $42 0.40% | ||||||||
| Expenses Paid, Amount | $ 42 | ||||||||
| Expense Ratio, Percent | 0.40% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Uncertainty around the future path of the U.S. Federal Reserve (the “Fed”) policy as well as high interest rates were the primary drivers of Fund performance during the reporting period. Following record high inflation stemming from the 2020 pandemic, the Fed embarked on an aggressive hiking path that saw a 5.25% increase in interest rates, with the last 25 bp rate hike occurring in July 2023. The Fed has been on pause ever since, waiting for the economy to fully absorb the effects from their policy tightening. By the end of the reporting period, the Fed still deemed inflation too high for to start lowering interest rates and reiterated the importance of seeing more “good data”, with lower CPI and PCE readings being the most important indicators of a cooling economy. Markets were sensitive to data during the reporting period, and high yield spreads increased to period highs in the fourth quarter as inflation remained stubborn. However, as inflation readings eased, so too did spreads which, in conjunction with a more risk-on market mentality, resulted in positive performance for the Fund. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C675"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | JNK Bloomberg U.S. Aggregate Bond Index Bloomberg High Yield Very Liquid Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $9,763 $9,975 $9,837 8/31/14 $10,005 $10,085 $10,032 9/30/14 $9,750 $10,017 $9,785 10/31/14 $9,855 $10,115 $9,925 11/30/14 $9,708 $10,187 $9,829 12/31/14 $9,564 $10,196 $9,672 1/31/15 $9,643 $10,410 $9,736 2/28/15 $9,893 $10,312 $10,004 3/31/15 $9,800 $10,360 $9,923 4/30/15 $9,908 $10,323 $10,043 5/31/15 $9,948 $10,298 $10,069 6/30/15 $9,744 $10,186 $9,887 7/31/15 $9,678 $10,257 $9,830 8/31/15 $9,477 $10,242 $9,639 9/30/15 $9,183 $10,311 $9,360 10/31/15 $9,437 $10,313 $9,658 11/30/15 $9,197 $10,286 $9,426 12/31/15 $8,919 $10,252 $9,163 1/31/16 $8,730 $10,393 $9,022 2/29/16 $8,836 $10,467 $9,094 3/31/16 $9,107 $10,564 $9,500 4/30/16 $9,431 $10,604 $9,869 5/31/16 $9,467 $10,607 $9,917 6/30/16 $9,644 $10,798 $9,978 7/31/16 $9,792 $10,866 $10,239 8/31/16 $9,976 $10,854 $10,465 9/30/16 $10,077 $10,847 $10,519 10/31/16 $9,996 $10,765 $10,529 11/30/16 $10,017 $10,510 $10,486 12/31/16 $10,200 $10,524 $10,690 1/31/17 $10,331 $10,546 $10,824 2/28/17 $10,462 $10,616 $10,980 3/31/17 $10,441 $10,611 $10,951 4/30/17 $10,549 $10,693 $11,074 5/31/17 $10,666 $10,775 $11,177 6/30/17 $10,669 $10,764 $11,192 7/31/17 $10,778 $10,810 $11,320 8/31/17 $10,783 $10,908 $11,310 9/30/17 $10,848 $10,855 $11,397 10/31/17 $10,870 $10,862 $11,432 11/30/17 $10,835 $10,848 $11,395 12/31/17 $10,865 $10,898 $11,418 1/31/18 $10,865 $10,772 $11,456 2/28/18 $10,761 $10,670 $11,353 3/31/18 $10,706 $10,738 $11,279 4/30/18 $10,754 $10,659 $11,350 5/31/18 $10,733 $10,734 $11,337 6/30/18 $10,735 $10,722 $11,384 7/31/18 $10,925 $10,724 $11,528 8/31/18 $10,998 $10,793 $11,615 9/30/18 $11,060 $10,724 $11,677 10/31/18 $10,840 $10,639 $11,470 11/30/18 $10,762 $10,702 $11,391 12/31/18 $10,513 $10,899 $11,126 1/31/19 $11,065 $11,015 $11,702 2/28/19 $11,216 $11,008 $11,900 3/31/19 $11,363 $11,220 $12,025 4/30/19 $11,512 $11,223 $12,199 5/31/19 $11,285 $11,422 $12,019 6/30/19 $11,639 $11,565 $12,331 7/31/19 $11,651 $11,591 $12,387 8/31/19 $11,732 $11,891 $12,450 9/30/19 $11,777 $11,828 $12,484 10/31/19 $11,770 $11,863 $12,520 11/30/19 $11,838 $11,857 $12,564 12/31/19 $12,076 $11,849 $12,825 1/31/20 $12,020 $12,077 $12,798 2/29/20 $11,847 $12,294 $12,566 3/31/20 $10,538 $12,222 $11,245 4/30/20 $11,069 $12,439 $11,718 5/31/20 $11,459 $12,497 $12,255 6/30/20 $11,419 $12,576 $12,257 7/31/20 $12,036 $12,764 $12,862 8/31/20 $12,049 $12,661 $12,964 9/30/20 $11,928 $12,654 $12,814 10/31/20 $11,983 $12,597 $12,859 11/30/20 $12,406 $12,721 $13,352 12/31/20 $12,670 $12,739 $13,578 1/31/21 $12,607 $12,647 $13,593 2/28/21 $12,628 $12,465 $13,618 3/31/21 $12,746 $12,309 $13,656 4/30/21 $12,841 $12,406 $13,790 5/31/21 $12,849 $12,447 $13,822 6/30/21 $13,019 $12,534 $13,989 7/31/21 $13,043 $12,674 $14,026 8/31/21 $13,117 $12,650 $14,101 9/30/21 $13,084 $12,541 $14,092 10/31/21 $13,039 $12,537 $14,045 11/30/21 $12,871 $12,574 $13,895 12/31/21 $13,172 $12,542 $14,190 1/31/22 $12,813 $12,272 $13,782 2/28/22 $12,702 $12,135 $13,663 3/31/22 $12,534 $11,798 $13,505 4/30/22 $11,982 $11,350 $12,978 5/31/22 $12,156 $11,423 $13,041 6/30/22 $11,237 $11,244 $12,090 7/31/22 $11,998 $11,519 $12,891 8/31/22 $11,489 $11,193 $12,510 9/30/22 $11,037 $10,710 $11,985 10/31/22 $11,375 $10,571 $12,346 11/30/22 $11,790 $10,960 $12,615 12/31/22 $11,568 $10,910 $12,504 1/31/23 $12,032 $11,246 $13,010 2/28/23 $11,808 $10,955 $12,816 3/31/23 $12,053 $11,234 $12,980 4/30/23 $12,079 $11,302 $13,101 5/31/23 $11,927 $11,179 $12,955 6/30/23 $12,150 $11,139 $13,188 7/31/23 $12,315 $11,131 $13,371 8/31/23 $12,342 $11,060 $13,410 9/30/23 $12,133 $10,779 $13,231 10/31/23 $12,006 $10,609 $13,070 11/30/23 $12,583 $11,089 $13,693 12/31/23 $13,009 $11,514 $14,225 1/31/24 $13,028 $11,482 $14,203 2/29/24 $13,060 $11,320 $14,235 3/31/24 $13,206 $11,424 $14,406 4/30/24 $13,036 $11,136 $14,268 5/31/24 $13,243 $11,324 $14,426 6/30/24 $13,309 $11,431 $14,570 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years JNK 9.97% 2.80% 2.94% Bloomberg U.S. Aggregate Bond Index 2.63% (0.23%) 1.35% Bloomberg High Yield Very Liquid Index 10.49% 3.40% 3.84% | ||||||||
| AssetsNet | $ 8,411,964,245 | $ 8,411,964,245 | $ 8,411,964,245 | $ 8,411,964,245 | $ 8,411,964,245 | $ 8,411,964,245 | $ 8,411,964,245 | $ 8,411,964,245 | $ 8,411,964,245 |
| Holdings Count | Holding | 1,199 | 1,199 | 1,199 | 1,199 | 1,199 | 1,199 | 1,199 | 1,199 | 1,199 |
| Advisory Fees Paid, Amount | $ 32,661,159 | ||||||||
| InvestmentCompanyPortfolioTurnover | 33% | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $8,411,964,245 # of Portfolio Holdings 1,199 Portfolio Turnover Rate 33% Total Advisory Fees Paid $32,661,159 | ||||||||
| Holdings [Text Block] | Top Ten Sectors Sector % Value of Total Net Assets Consumer, Cyclical 18.7% Consumer, Non-Cyclical 16.5% Communications 15.0% Financial 12.9% Energy 11.9% Industrial 11.8% Technology 5.0% Basic Materials 4.2% Utilities 2.4% Diversified 0.2% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets Medline Borrower LP, 3.88%, due 04/01/29 0.5% Cloud Software Group, Inc., 6.50%, due 03/31/29 0.4% Cloud Software Group, Inc., 9.00%, due 09/30/29 0.4% DISH Network Corp., 11.75%, due 11/15/27 0.4% Directv Financing LLC/Directv Financing Co.-Obligor, Inc., 5.88%, due 08/15/27 0.4% HUB International Ltd., 7.25%, due 06/15/30 0.4% Venture Global LNG, Inc., 9.50%, due 02/01/29 0.4% Panther Escrow Issuer LLC, 7.13%, due 06/01/31 0.3% Carnival Corp., 5.75%, due 03/01/27 0.3% American Airlines, Inc./AAdvantage Loyalty IP Ltd., 5.75%, due 04/20/29 0.3% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000111386 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR Bloomberg Short Term High Yield Bond ETF | ||||||||
| Trading Symbol | SJNK | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR Bloomberg Short Term High Yield Bond ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C694"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR Bloomberg Short Term High Yield Bond ETF $42 0.40% | ||||||||
| Expenses Paid, Amount | $ 42 | ||||||||
| Expense Ratio, Percent | 0.40% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Uncertainty around the future path of the U.S. Federal Reserve (“Fed”) policy as well as high interest rates were the primary drivers of Fund performance during the reporting period. Following record high inflation stemming from the 2020 pandemic, the Fed embarked on an aggressive hiking path that saw a 5.25% increase in interest rates, with the last 25 bp rate hike occurring in July 2023. The Fed has been on pause ever since, waiting for the economy to fully absorb the effects from their policy tightening. By the end of the reporting period, the Fed still deemed inflation too high for to start lowering interest rates and reiterated the importance of seeing more “good data”, with lower CPI and PCE readings being the most important indicators of a cooling economy. Markets were sensitive to data during the reporting period, and high yield spreads increased to period highs in the fourth quarter as inflation remained stubborn. However, as inflation readings eased, so too did spreads which, in conjunction with a more risk-on market mentality, resulted in positive performance for the fund. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C699"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | SJNK Bloomberg U.S. Aggregate Bond Index Bloomberg US High Yield 350mn Cash Pay 0-5 Yr 2% Capped Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $9,852 $9,975 $9,895 8/31/14 $9,956 $10,085 $9,990 9/30/14 $9,794 $10,017 $9,842 10/31/14 $9,844 $10,115 $9,899 11/30/14 $9,745 $10,187 $9,864 12/31/14 $9,623 $10,196 $9,749 1/31/15 $9,647 $10,410 $9,759 2/28/15 $9,861 $10,312 $9,962 3/31/15 $9,800 $10,360 $9,916 4/30/15 $9,888 $10,323 $10,014 5/31/15 $9,914 $10,298 $10,058 6/30/15 $9,823 $10,186 $9,965 7/31/15 $9,710 $10,257 $9,857 8/31/15 $9,518 $10,242 $9,675 9/30/15 $9,288 $10,311 $9,464 10/31/15 $9,453 $10,313 $9,652 11/30/15 $9,237 $10,286 $9,459 12/31/15 $9,028 $10,252 $9,247 1/31/16 $8,831 $10,393 $9,079 2/29/16 $8,934 $10,467 $9,108 3/31/16 $9,157 $10,564 $9,469 4/30/16 $9,480 $10,604 $9,811 5/31/16 $9,567 $10,607 $9,902 6/30/16 $9,711 $10,798 $9,994 7/31/16 $9,808 $10,866 $10,195 8/31/16 $9,996 $10,854 $10,355 9/30/16 $10,109 $10,847 $10,446 10/31/16 $10,083 $10,765 $10,495 11/30/16 $10,133 $10,510 $10,490 12/31/16 $10,311 $10,524 $10,670 1/31/17 $10,407 $10,546 $10,789 2/28/17 $10,533 $10,616 $10,918 3/31/17 $10,511 $10,611 $10,905 4/30/17 $10,595 $10,693 $11,003 5/31/17 $10,683 $10,775 $11,079 6/30/17 $10,668 $10,764 $11,090 7/31/17 $10,745 $10,810 $11,176 8/31/17 $10,752 $10,908 $11,176 9/30/17 $10,817 $10,855 $11,252 10/31/17 $10,847 $10,862 $11,294 11/30/17 $10,831 $10,848 $11,259 12/31/17 $10,853 $10,898 $11,294 1/31/18 $10,924 $10,772 $11,387 2/28/18 $10,886 $10,670 $11,354 3/31/18 $10,873 $10,738 $11,331 4/30/18 $10,933 $10,659 $11,409 5/31/18 $10,949 $10,734 $11,449 6/30/18 $10,983 $10,722 $11,503 7/31/18 $11,131 $10,724 $11,620 8/31/18 $11,183 $10,793 $11,688 9/30/18 $11,259 $10,724 $11,758 10/31/18 $11,099 $10,639 $11,619 11/30/18 $11,039 $10,702 $11,555 12/31/18 $10,821 $10,899 $11,314 1/31/19 $11,236 $11,015 $11,739 2/28/19 $11,354 $11,008 $11,894 3/31/19 $11,445 $11,220 $11,963 4/30/19 $11,541 $11,223 $12,069 5/31/19 $11,388 $11,422 $11,961 6/30/19 $11,600 $11,565 $12,138 7/31/19 $11,613 $11,591 $12,175 8/31/19 $11,623 $11,891 $12,174 9/30/19 $11,659 $11,828 $12,201 10/31/19 $11,632 $11,863 $12,207 11/30/19 $11,640 $11,857 $12,203 12/31/19 $11,848 $11,849 $12,427 1/31/20 $11,826 $12,077 $12,422 2/29/20 $11,700 $12,294 $12,263 3/31/20 $10,447 $12,222 $10,912 4/30/20 $10,952 $12,439 $11,281 5/31/20 $11,257 $12,497 $11,697 6/30/20 $11,357 $12,576 $11,827 7/31/20 $11,807 $12,764 $12,233 8/31/20 $11,857 $12,661 $12,369 9/30/20 $11,815 $12,654 $12,298 10/31/20 $11,892 $12,597 $12,352 11/30/20 $12,291 $12,721 $12,788 12/31/20 $12,539 $12,739 $13,006 1/31/21 $12,553 $12,647 $13,090 2/28/21 $12,649 $12,465 $13,195 3/31/21 $12,806 $12,309 $13,289 4/30/21 $12,895 $12,406 $13,406 5/31/21 $12,921 $12,447 $13,463 6/30/21 $13,052 $12,534 $13,581 7/31/21 $13,036 $12,674 $13,584 8/31/21 $13,085 $12,650 $13,648 9/30/21 $13,092 $12,541 $13,676 10/31/21 $13,097 $12,537 $13,689 11/30/21 $12,963 $12,574 $13,578 12/31/21 $13,167 $12,542 $13,764 1/31/22 $12,983 $12,272 $13,572 2/28/22 $12,909 $12,135 $13,497 3/31/22 $12,820 $11,798 $13,390 4/30/22 $12,515 $11,350 $13,127 5/31/22 $12,617 $11,423 $13,121 6/30/22 $11,933 $11,244 $12,448 7/31/22 $12,519 $11,519 $13,016 8/31/22 $12,232 $11,193 $12,845 9/30/22 $11,949 $10,710 $12,518 10/31/22 $12,239 $10,571 $12,811 11/30/22 $12,598 $10,960 $13,036 12/31/22 $12,454 $10,910 $12,983 1/31/23 $12,844 $11,246 $13,370 2/28/23 $12,716 $10,955 $13,290 3/31/23 $12,900 $11,234 $13,383 4/30/23 $12,928 $11,302 $13,492 5/31/23 $12,847 $11,179 $13,416 6/30/23 $13,070 $11,139 $13,627 7/31/23 $13,215 $11,131 $13,790 8/31/23 $13,286 $11,060 $13,867 9/30/23 $13,175 $10,779 $13,787 10/31/23 $13,057 $10,609 $13,656 11/30/23 $13,544 $11,089 $14,127 12/31/23 $13,899 $11,514 $14,553 1/31/24 $13,934 $11,482 $14,551 2/29/24 $14,004 $11,320 $14,637 3/31/24 $14,115 $11,424 $14,767 4/30/24 $14,007 $11,136 $14,678 5/31/24 $14,159 $11,324 $14,812 6/30/24 $14,237 $11,431 $14,945 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years SJNK 9.28% 4.22% 3.63% Bloomberg U.S. Aggregate Bond Index 2.63% (0.23%) 1.35% Bloomberg US High Yield 350mn Cash Pay 0-5 Yr 2% Capped Index 9.69% 4.25% 4.10% | ||||||||
| AssetsNet | $ 4,663,418,876 | $ 4,663,418,876 | $ 4,663,418,876 | $ 4,663,418,876 | $ 4,663,418,876 | $ 4,663,418,876 | $ 4,663,418,876 | $ 4,663,418,876 | $ 4,663,418,876 |
| Holdings Count | Holding | 1,058 | 1,058 | 1,058 | 1,058 | 1,058 | 1,058 | 1,058 | 1,058 | 1,058 |
| Advisory Fees Paid, Amount | $ 16,351,083 | ||||||||
| InvestmentCompanyPortfolioTurnover | 54% | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $4,663,418,876 # of Portfolio Holdings 1,058 Portfolio Turnover Rate 54% Total Advisory Fees Paid $16,351,083 | ||||||||
| Holdings [Text Block] | Top Ten Sectors Sector % Value of Total Net Assets Consumer, Cyclical 23.8% Communications 15.2% Consumer, Non-Cyclical 13.2% Financial 12.3% Industrial 10.8% Energy 10.2% Technology 4.7% Basic Materials 3.8% Utilities 2.9% Diversified 0.1% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets Directv Financing LLC/Directv Financing Co.-Obligor, Inc., 5.88%, due 08/15/27 0.5% Cloud Software Group, Inc., 6.50%, due 03/31/29 0.5% CCO Holdings LLC/CCO Holdings Capital Corp., 5.13%, due 05/01/27 0.5% Carnival Holdings Bermuda Ltd., 10.38%, due 05/01/28 0.4% Venture Global LNG, Inc., 8.13%, due 06/01/28 0.4% American Airlines, Inc./AAdvantage Loyalty IP Ltd., 5.75%, due 04/20/29 0.4% Western Digital Corp., 4.75%, due 02/15/26 0.4% DISH Network Corp., 11.75%, due 11/15/27 0.4% Uniti Group LP/Uniti Group Finance, Inc./CSL Capital LLC, 10.50%, due 02/15/28 0.4% Mauser Packaging Solutions Holding Co., 7.88%, due 04/15/27 0.4% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000107256 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR Bloomberg Investment Grade Floating Rate ETF | ||||||||
| Trading Symbol | FLRN | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR Bloomberg Investment Grade Floating Rate ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C718"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR Bloomberg Investment Grade Floating Rate ETF $16 0.15% | ||||||||
| Expenses Paid, Amount | $ 16 | ||||||||
| Expense Ratio, Percent | 0.15% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Uncertainty around the future path of the U.S. Federal Reserve (“Fed”) policy as well as high interest rates were the primary drivers of Fund performance during the reporting period. Following record high inflation stemming from the 2020 pandemic, the Fed embarked on an aggressive hiking path that saw a 5.25% increase in interest rates, with the last 25 bp rate hike occurring in July 2023. The Fed has been on pause ever since, waiting for the economy to fully absorb the effects from their policy tightening. By the end of the reporting period, the Fed still deemed inflation too high for to start lowering interest rates and reiterated the importance of seeing more “good data”, with lower CPI and PCE readings being the most important indicators of a cooling economy. Markets were sensitive to data during the reporting period, and credit spreads increased to period highs in the fourth quarter as inflation remained stubborn. However, as inflation readings eased, so too did credit spreads, impacting performance positively. In addition, the higher rate environment helped fund performance due to the structure of the floating rate holdings. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C723"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | FLRN Bloomberg U.S. Aggregate Bond Index Bloomberg U.S. Dollar Floating Rate 6/30/14 $10,000 $10,000 $10,000 7/31/14 $10,011 $9,975 $10,007 8/31/14 $10,015 $10,085 $10,017 9/30/14 $10,013 $10,017 $10,023 10/31/14 $10,021 $10,115 $10,020 11/30/14 $10,006 $10,187 $10,019 12/31/14 $9,980 $10,196 $10,008 1/31/15 $9,976 $10,410 $10,011 2/28/15 $9,997 $10,312 $10,025 3/31/15 $10,025 $10,360 $10,033 4/30/15 $10,043 $10,323 $10,045 5/31/15 $10,058 $10,298 $10,054 6/30/15 $10,056 $10,186 $10,051 7/31/15 $10,028 $10,257 $10,051 8/31/15 $9,988 $10,242 $10,050 9/30/15 $10,000 $10,311 $10,029 10/31/15 $9,995 $10,313 $10,036 11/30/15 $10,017 $10,286 $10,045 12/31/15 $10,026 $10,252 $10,044 1/31/16 $10,016 $10,393 $10,046 2/29/16 $10,009 $10,467 $10,046 3/31/16 $10,033 $10,564 $10,069 4/30/16 $10,078 $10,604 $10,093 5/31/16 $10,083 $10,607 $10,110 6/30/16 $10,081 $10,798 $10,115 7/31/16 $10,123 $10,866 $10,139 8/31/16 $10,122 $10,854 $10,166 9/30/16 $10,174 $10,847 $10,174 10/31/16 $10,167 $10,765 $10,189 11/30/16 $10,198 $10,510 $10,203 12/31/16 $10,200 $10,524 $10,217 1/31/17 $10,223 $10,546 $10,238 2/28/17 $10,237 $10,616 $10,263 3/31/17 $10,255 $10,611 $10,278 4/30/17 $10,271 $10,693 $10,296 5/31/17 $10,278 $10,775 $10,313 6/30/17 $10,291 $10,764 $10,331 7/31/17 $10,312 $10,810 $10,353 8/31/17 $10,314 $10,908 $10,366 9/30/17 $10,335 $10,855 $10,386 10/31/17 $10,361 $10,862 $10,409 11/30/17 $10,368 $10,848 $10,423 12/31/17 $10,380 $10,898 $10,438 1/31/18 $10,419 $10,772 $10,466 2/28/18 $10,424 $10,670 $10,478 3/31/18 $10,431 $10,738 $10,487 4/30/18 $10,464 $10,659 $10,521 5/31/18 $10,482 $10,734 $10,541 6/30/18 $10,490 $10,722 $10,561 7/31/18 $10,523 $10,724 $10,592 8/31/18 $10,553 $10,793 $10,620 9/30/18 $10,577 $10,724 $10,643 10/31/18 $10,575 $10,639 $10,657 11/30/18 $10,558 $10,702 $10,645 12/31/18 $10,524 $10,899 $10,630 1/31/19 $10,609 $11,015 $10,704 2/28/19 $10,652 $11,008 $10,747 3/31/19 $10,691 $11,220 $10,786 4/30/19 $10,730 $11,223 $10,830 5/31/19 $10,749 $11,422 $10,854 6/30/19 $10,783 $11,565 $10,886 7/31/19 $10,810 $11,591 $10,921 8/31/19 $10,834 $11,891 $10,941 9/30/19 $10,870 $11,828 $10,971 10/31/19 $10,895 $11,863 $11,006 11/30/19 $10,923 $11,857 $11,032 12/31/19 $10,951 $11,849 $11,058 1/31/20 $10,980 $12,077 $11,094 2/29/20 $10,978 $12,294 $11,104 3/31/20 $10,523 $12,222 $10,763 4/30/20 $10,794 $12,439 $10,951 5/31/20 $10,887 $12,497 $11,031 6/30/20 $10,950 $12,576 $11,105 7/31/20 $10,987 $12,764 $11,144 8/31/20 $11,008 $12,661 $11,166 9/30/20 $11,011 $12,654 $11,171 10/31/20 $11,017 $12,597 $11,185 11/30/20 $11,029 $12,721 $11,198 12/31/20 $11,036 $12,739 $11,208 1/31/21 $11,057 $12,647 $11,222 2/28/21 $11,062 $12,465 $11,231 3/31/21 $11,059 $12,309 $11,228 4/30/21 $11,059 $12,406 $11,234 5/31/21 $11,072 $12,447 $11,245 6/30/21 $11,078 $12,534 $11,251 7/31/21 $11,078 $12,674 $11,254 8/31/21 $11,081 $12,650 $11,259 9/30/21 $11,088 $12,541 $11,265 10/31/21 $11,084 $12,537 $11,265 11/30/21 $11,076 $12,574 $11,259 12/31/21 $11,075 $12,542 $11,258 1/31/22 $11,079 $12,272 $11,265 2/28/22 $11,073 $12,135 $11,264 3/31/22 $11,049 $11,798 $11,236 4/30/22 $11,049 $11,350 $11,239 5/31/22 $11,035 $11,423 $11,239 6/30/22 $10,927 $11,244 $11,202 7/31/22 $11,009 $11,519 $11,220 8/31/22 $11,072 $11,193 $11,275 9/30/22 $11,059 $10,710 $11,297 10/31/22 $11,090 $10,571 $11,313 11/30/22 $11,152 $10,960 $11,366 12/31/22 $11,224 $10,910 $11,425 1/31/23 $11,309 $11,246 $11,523 2/28/23 $11,389 $10,955 $11,589 3/31/23 $11,340 $11,234 $11,587 4/30/23 $11,446 $11,302 $11,660 5/31/23 $11,512 $11,179 $11,737 6/30/23 $11,589 $11,139 $11,805 7/31/23 $11,649 $11,131 $11,874 8/31/23 $11,709 $11,060 $11,937 9/30/23 $11,772 $10,779 $11,999 10/31/23 $11,817 $10,609 $12,056 11/30/23 $11,884 $11,089 $12,121 12/31/23 $11,957 $11,514 $12,191 1/31/24 $12,020 $11,482 $12,268 2/29/24 $12,103 $11,320 $12,341 3/31/24 $12,168 $11,424 $12,411 4/30/24 $12,232 $11,136 $12,477 5/31/24 $12,303 $11,324 $12,546 6/30/24 $12,353 $11,431 $12,604 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years FLRN 6.68% 2.74% 2.13% Bloomberg U.S. Aggregate Bond Index 2.63% (0.23%) 1.35% Bloomberg U.S. Dollar Floating Rate 6.76% 2.97% 2.34% | ||||||||
| AssetsNet | $ 2,496,839,756 | $ 2,496,839,756 | $ 2,496,839,756 | $ 2,496,839,756 | $ 2,496,839,756 | $ 2,496,839,756 | $ 2,496,839,756 | $ 2,496,839,756 | $ 2,496,839,756 |
| Holdings Count | Holding | 349 | 349 | 349 | 349 | 349 | 349 | 349 | 349 | 349 |
| Advisory Fees Paid, Amount | $ 3,579,174 | ||||||||
| InvestmentCompanyPortfolioTurnover | 40% | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $2,496,839,756 # of Portfolio Holdings 349 Portfolio Turnover Rate 40% Total Advisory Fees Paid $3,579,174 | ||||||||
| Holdings [Text Block] | Maturity Weightings Maturity Duration % Value of Total Net Assets 0 to 1 Year 20.4% 1 to 2 Years 33.6% 2 to 3 Years 25.1% 3 to 5 Years 19.5% 5 to 10 Years 0.5% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets International Bank for Reconstruction & Development, 5.80%, due 08/19/27 1.7% International Bank for Reconstruction & Development, 5.72%, due 01/12/27 1.5% European Bank for Reconstruction & Development, 5.55%, due 04/14/26 1.3% International Bank for Reconstruction & Development, 5.68%, due 09/23/26 1.3% International Bank for Reconstruction & Development, 5.68%, due 09/18/25 1.1% Inter-American Development Bank, 5.54%, due 09/16/26 1.0% Inter-American Development Bank, 5.56%, due 02/10/26 1.0% International Bank for Reconstruction & Development, 5.67%, due 05/15/28 0.9% Inter-American Development Bank, 5.67%, due 02/15/29 0.9% Asian Development Bank, 6.37%, due 06/16/26 0.9% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000234530 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR MarketAxess Investment Grade 400 Corporate Bond ETF | ||||||||
| Trading Symbol | LQIG | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR MarketAxess Investment Grade 400 Corporate Bond ETF (the "Fund") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Fund, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C742"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR MarketAxess Investment Grade 400 Corporate Bond ETF $7 0.07% | ||||||||
| Expenses Paid, Amount | $ 7 | ||||||||
| Expense Ratio, Percent | 0.07% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Uncertainty around the future path of the U.S. Federal Reserve (the “Fed”) policy as well as high interest rates were the primary drivers of Fund performance during the reporting period. Following record high inflation stemming from the 2020 pandemic, the Fed embarked on an aggressive hiking path that saw a 5.25% increase in interest rates, with the last 25 bp rate hike occurring in July 2023. The Fed has been on pause ever since, waiting for the economy to fully absorb the effects from their policy tightening. By the end of the reporting period, the Fed still deemed inflation too high for to start lowering interest rates and reiterated the importance of seeing more “good data”, with lower CPI and PCE readings being the most important indicators of a cooling economy. Fixed income markets were sensitive to data during the reporting period, and credit spreads increased to period highs in the fourth quarter as inflation remained stubborn. However, as soon as inflation readings eased, so too did credit spreads decline to period lows, resulting in modestly positive performance for the period. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C747"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | LQIG Bloomberg U.S. Aggregate Bond Index MarketAxess U.S. Investment Grade 400 Corporate Bond Index 05/11/22 $10,000 $10,000 $10,000 05/31/22 $10,252 $10,285 $10,140 06/30/22 $9,888 $10,124 $9,820 07/31/22 $10,300 $10,371 $10,220 08/31/22 $9,871 $10,078 $9,843 09/30/22 $9,355 $9,643 $9,294 10/31/22 $9,305 $9,518 $9,231 11/30/22 $9,863 $9,868 $9,742 12/31/22 $9,721 $9,823 $9,669 01/31/23 $10,207 $10,125 $10,115 02/28/23 $9,810 $9,864 $9,746 03/31/23 $10,186 $10,114 $10,118 04/30/23 $10,237 $10,175 $10,174 05/31/23 $10,079 $10,065 $10,026 06/30/23 $10,151 $10,029 $10,073 07/31/23 $10,163 $10,022 $10,095 08/31/23 $10,054 $9,958 $10,001 09/30/23 $9,739 $9,705 $9,698 10/31/23 $9,537 $9,552 $9,498 11/30/23 $10,211 $9,984 $10,138 12/31/23 $10,642 $10,366 $10,587 01/31/24 $10,612 $10,338 $10,555 02/29/24 $10,432 $10,192 $10,377 03/31/24 $10,584 $10,286 $10,519 04/30/24 $10,270 $10,026 $10,222 05/31/24 $10,488 $10,196 $10,433 06/30/24 $10,549 $10,292 $10,508 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year Since Inception 5/11/22 LQIG 4.25% 2.25% Bloomberg U.S. Aggregate Bond Index 2.63% 18.48% MarketAxess U.S. Investment Grade 400 Corporate Bond Index 4.32% 2.35% | ||||||||
| Performance Inception Date | May 11, 2022 | ||||||||
| AssetsNet | $ 56,610,099 | $ 56,610,099 | $ 56,610,099 | $ 56,610,099 | $ 56,610,099 | $ 56,610,099 | $ 56,610,099 | $ 56,610,099 | $ 56,610,099 |
| Holdings Count | Holding | 389 | 389 | 389 | 389 | 389 | 389 | 389 | 389 | 389 |
| Advisory Fees Paid, Amount | $ 32,935 | ||||||||
| InvestmentCompanyPortfolioTurnover | 73% | ||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics Statistic Value Total Net Assets $56,610,099 # of Portfolio Holdings 389 Portfolio Turnover Rate 73% Total Advisory Fees Paid $32,935 | ||||||||
| Holdings [Text Block] | Maturity Weightings Maturity Duration % Value of Total Net Assets 0 to 1 Year 2.7% 1 to 2 Years 0.2% 2 to 3 Years 9.7% 3 to 5 Years 16.1% 5 to 10 Years 33.3% 10 to 20 Years 11.6% 20 to 30 Years 23.0% Greater than 30 Years 4.4% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets Morgan Stanley, 1.59%, due 05/04/27 0.9% Anheuser-Busch Cos. LLC/Anheuser-Busch InBev Worldwide, Inc., 4.90%, due 02/01/46 0.9% HSBC Holdings PLC, 5.21%, due 08/11/28 0.8% CVS Health Corp., 5.05%, due 03/25/48 0.7% T-Mobile USA, Inc., 3.88%, due 04/15/30 0.7% Bank of America Corp., 3.42%, due 12/20/28 0.6% Goldman Sachs Group, Inc., 6.75%, due 10/01/37 0.6% Wells Fargo & Co., 5.39%, due 04/24/34 0.6% Pfizer Investment Enterprises Pte. Ltd., 5.30%, due 05/19/53 0.6% Bank of America Corp., 5.29%, due 04/25/34 0.5% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000047967 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR Portfolio TIPS ETF | ||||||||
| Trading Symbol | SPIP | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR Portfolio TIPS ETF (the "Portfolio") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Portfolio, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C767"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Portfolio costs for the last year? Portfolio Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR Portfolio TIPS ETF $12 0.12% | ||||||||
| Expenses Paid, Amount | $ 12 | ||||||||
| Expense Ratio, Percent | 0.12% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Uncertainty around the future path of Federal Reserve (“Fed”) policy as well as high interest rates were the primary drivers of Fund performance during the reporting period. Following record high inflation stemming from the 2020 pandemic, the Fed embarked on an aggressive hiking path that saw a 5.25% increase in interest rates, with the last 25bp rate hike occurring in July 2023. The Fed has been on pause ever since, waiting for the economy to fully absorb the effects from their policy tightening. By the end of the reporting period, the Fed still deemed inflation too high for the committee to start lowering interest rates, and reiterated the importance of seeing more “good data”, with lower CPI and PCE readings being the most important indicators of a cooling economy. Fixed income markets were sensitive to data during the reporting period, as evidenced by moves in Treasury yields. Ten-year TIPS yields reached a high of 2.52% in October, dropped to a low of 1.64% in December, and ended the reporting period slightly higher at 2.11%, resulting in positive, albeit muted, returns for the strategy. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C772"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | SPIP Bloomberg U.S. Aggregate Bond Index Bloomberg U.S. Government Inflation-Linked Bond Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $10,005 $9,975 $10,011 8/31/14 $10,075 $10,085 $10,066 9/30/14 $9,800 $10,017 $9,795 10/31/14 $9,884 $10,115 $9,890 11/30/14 $9,916 $10,187 $9,920 12/31/14 $9,833 $10,196 $9,819 1/31/15 $10,171 $10,410 $10,144 2/28/15 $10,014 $10,312 $10,012 3/31/15 $9,971 $10,360 $9,963 4/30/15 $10,020 $10,323 $10,032 5/31/15 $9,907 $10,298 $9,940 6/30/15 $9,804 $10,186 $9,832 7/31/15 $9,858 $10,257 $9,862 8/31/15 $9,756 $10,242 $9,778 9/30/15 $9,700 $10,311 $9,712 10/31/15 $9,736 $10,313 $9,742 11/30/15 $9,722 $10,286 $9,734 12/31/15 $9,629 $10,252 $9,651 1/31/16 $9,784 $10,393 $9,799 2/29/16 $9,893 $10,467 $9,915 3/31/16 $10,074 $10,564 $10,101 4/30/16 $10,099 $10,604 $10,140 5/31/16 $10,018 $10,607 $10,064 6/30/16 $10,261 $10,798 $10,284 7/31/16 $10,337 $10,866 $10,387 8/31/16 $10,298 $10,854 $10,342 9/30/16 $10,382 $10,847 $10,394 10/31/16 $10,318 $10,765 $10,344 11/30/16 $10,093 $10,510 $10,135 12/31/16 $10,067 $10,524 $10,120 1/31/17 $10,172 $10,546 $10,208 2/28/17 $10,221 $10,616 $10,263 3/31/17 $10,215 $10,611 $10,258 4/30/17 $10,267 $10,693 $10,320 5/31/17 $10,266 $10,775 $10,316 6/30/17 $10,166 $10,764 $10,215 7/31/17 $10,222 $10,810 $10,258 8/31/17 $10,333 $10,908 $10,376 9/30/17 $10,255 $10,855 $10,307 10/31/17 $10,280 $10,862 $10,330 11/30/17 $10,295 $10,848 $10,349 12/31/17 $10,404 $10,898 $10,453 1/31/18 $10,306 $10,772 $10,361 2/28/18 $10,196 $10,670 $10,249 3/31/18 $10,297 $10,738 $10,364 4/30/18 $10,287 $10,659 $10,358 5/31/18 $10,319 $10,734 $10,400 6/30/18 $10,383 $10,722 $10,446 7/31/18 $10,329 $10,724 $10,392 8/31/18 $10,398 $10,793 $10,468 9/30/18 $10,292 $10,724 $10,350 10/31/18 $10,129 $10,639 $10,188 11/30/18 $10,174 $10,702 $10,242 12/31/18 $10,236 $10,899 $10,299 1/31/19 $10,389 $11,015 $10,443 2/28/19 $10,369 $11,008 $10,440 3/31/19 $10,575 $11,220 $10,642 4/30/19 $10,600 $11,223 $10,676 5/31/19 $10,792 $11,422 $10,868 6/30/19 $10,875 $11,565 $10,956 7/31/19 $10,914 $11,591 $10,999 8/31/19 $11,191 $11,891 $11,284 9/30/19 $11,056 $11,828 $11,118 10/31/19 $11,053 $11,863 $11,145 11/30/19 $11,077 $11,857 $11,165 12/31/19 $11,121 $11,849 $11,200 1/31/20 $11,377 $12,077 $11,452 2/29/20 $11,492 $12,294 $11,623 3/31/20 $11,324 $12,222 $11,416 4/30/20 $11,626 $12,439 $11,749 5/31/20 $11,699 $12,497 $11,778 6/30/20 $11,824 $12,576 $11,913 7/31/20 $12,119 $12,764 $12,215 8/31/20 $12,221 $12,661 $12,339 9/30/20 $12,174 $12,654 $12,292 10/31/20 $12,088 $12,597 $12,208 11/30/20 $12,241 $12,721 $12,353 12/31/20 $12,387 $12,739 $12,493 1/31/21 $12,416 $12,647 $12,528 2/28/21 $12,188 $12,465 $12,298 3/31/21 $12,156 $12,309 $12,265 4/30/21 $12,336 $12,406 $12,448 5/31/21 $12,464 $12,447 $12,600 6/30/21 $12,566 $12,534 $12,689 7/31/21 $12,914 $12,674 $13,045 8/31/21 $12,896 $12,650 $13,018 9/30/21 $12,795 $12,541 $12,917 10/31/21 $12,940 $12,537 $13,069 11/30/21 $13,072 $12,574 $13,200 12/31/21 $13,104 $12,542 $13,242 1/31/22 $12,818 $12,272 $12,948 2/28/22 $12,934 $12,135 $13,055 3/31/22 $12,673 $11,798 $12,803 4/30/22 $12,374 $11,350 $12,524 5/31/22 $12,236 $11,423 $12,371 6/30/22 $11,836 $11,244 $11,962 7/31/22 $12,379 $11,519 $12,505 8/31/22 $12,038 $11,193 $12,168 9/30/22 $11,208 $10,710 $11,333 10/31/22 $11,363 $10,571 $11,476 11/30/22 $11,582 $10,960 $11,696 12/31/22 $11,435 $10,910 $11,573 1/31/23 $11,675 $11,246 $11,795 2/28/23 $11,520 $10,955 $11,632 3/31/23 $11,848 $11,234 $11,972 4/30/23 $11,853 $11,302 $11,980 5/31/23 $11,708 $11,179 $11,837 6/30/23 $11,674 $11,139 $11,803 7/31/23 $11,683 $11,131 $11,810 8/31/23 $11,570 $11,060 $11,699 9/30/23 $11,342 $10,779 $11,473 10/31/23 $11,248 $10,609 $11,379 11/30/23 $11,577 $11,089 $11,697 12/31/23 $11,863 $11,514 $12,018 1/31/24 $11,904 $11,482 $12,036 2/29/24 $11,775 $11,320 $11,908 3/31/24 $11,849 $11,424 $12,005 4/30/24 $11,652 $11,136 $11,795 5/31/24 $11,858 $11,324 $12,006 6/30/24 $11,946 $11,431 $12,096 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years SPIP 2.38% 1.90% 1.79% Bloomberg U.S. Aggregate Bond Index 2.63% (0.23%) 1.35% Bloomberg U.S. Government Inflation-Linked Bond Index 2.48% 2.00% 1.92% | ||||||||
| AssetsNet | $ 1,012,069,490 | $ 1,012,069,490 | $ 1,012,069,490 | $ 1,012,069,490 | $ 1,012,069,490 | $ 1,012,069,490 | $ 1,012,069,490 | $ 1,012,069,490 | $ 1,012,069,490 |
| Holdings Count | Holding | 51 | 51 | 51 | 51 | 51 | 51 | 51 | 51 | 51 |
| Advisory Fees Paid, Amount | $ 1,690,002 | ||||||||
| InvestmentCompanyPortfolioTurnover | 18% | ||||||||
| Additional Fund Statistics [Text Block] | Key Portfolio Statistics Statistic Value Total Net Assets $1,012,069,490 # of Portfolio Holdings 51 Portfolio Turnover Rate 18% Total Advisory Fees Paid $1,690,002 | ||||||||
| Holdings [Text Block] | Maturity Weightings Maturity Duration % Value of Total Net Assets 0 to 1 Year 0.6% 1 to 2 Years 13.1% 2 to 3 Years 12.5% 3 to 5 Years 26.9% 5 to 10 Years 29.1% 10 to 20 Years 8.1% 20 to 30 Years 9.4% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets U.S. Treasury Inflation-Indexed Notes, 0.63%, due 01/15/26 3.8% U.S. Treasury Inflation-Indexed Notes, 0.13%, due 01/15/31 3.1% U.S. Treasury Inflation-Indexed Notes, 0.38%, due 01/15/27 3.0% U.S. Treasury Inflation-Indexed Notes, 1.13%, due 01/15/33 3.0% U.S. Treasury Inflation-Indexed Notes, 0.38%, due 07/15/25 3.0% U.S. Treasury Inflation-Indexed Notes, 0.13%, due 07/15/31 2.9% U.S. Treasury Inflation-Indexed Notes, 0.13%, due 07/15/26 2.9% U.S. Treasury Inflation-Indexed Notes, 0.13%, due 01/15/30 2.9% U.S. Treasury Inflation-Indexed Notes, 0.13%, due 01/15/32 2.8% U.S. Treasury Inflation-Indexed Notes, 1.75%, due 01/15/34 2.8% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000055009 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR Portfolio Short Term Treasury ETF | ||||||||
| Trading Symbol | SPTS | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR Portfolio Short Term Treasury ETF (the "Portfolio") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Portfolio, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C792"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Portfolio costs for the last year? Portfolio Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR Portfolio Short Term Treasury ETF $3 0.03% Effective August 1, 2023 the management fee for the Fund was reduced from 0.06% to 0.03%. | ||||||||
| Expenses Paid, Amount | $ 3 | ||||||||
| Expense Ratio, Percent | 0.03% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Uncertainty around the future path of Federal Reserve (“Fed”) policy as well as high interest rates were the primary drivers of Fund performance during the reporting period. Following record high inflation stemming from the 2020 pandemic, the Fed embarked on an aggressive hiking path that saw a 5.25% increase in interest rates, with the last 25bp rate hike occurring in July 2023. The Fed has been on pause ever since, waiting for the economy to fully absorb the effects from their policy tightening. By the end of the reporting period, the Fed still deemed inflation too high for the committee to start lowering interest rates, and reiterated the importance of seeing more “good data”, with lower CPI and PCE readings being the most important indicators of a cooling economy. Fixed income markets were very sensitive to data prints during the reporting period, as evidenced by moves in Treasury yields. Two-year yields started the period at 4.89% before dropping to a low of 4.14% in January after a number of decreasing monthly CPI prints suggested that the Fed may start cutting rates in the first half of 2024. As inflation data ticked back up in subsequent months, yields followed suit, with 2-year yields ending the reporting period at 4.75%. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C797"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | SPTS Bloomberg U.S. Aggregate Bond Index Bloomberg 1-3 Year U.S. Treasury Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $9,985 $9,975 $9,979 8/31/14 $10,014 $10,085 $10,013 9/30/14 $9,997 $10,017 $9,996 10/31/14 $10,069 $10,115 $10,044 11/30/14 $10,069 $10,187 $10,074 12/31/14 $10,036 $10,196 $10,041 1/31/15 $10,139 $10,410 $10,139 2/28/15 $10,084 $10,312 $10,089 3/31/15 $10,131 $10,360 $10,130 4/30/15 $10,134 $10,323 $10,132 5/31/15 $10,137 $10,298 $10,141 6/30/15 $10,127 $10,186 $10,132 7/31/15 $10,134 $10,257 $10,150 8/31/15 $10,141 $10,242 $10,149 9/30/15 $10,192 $10,311 $10,202 10/31/15 $10,163 $10,313 $10,179 11/30/15 $10,137 $10,286 $10,148 12/31/15 $10,119 $10,252 $10,134 1/31/16 $10,223 $10,393 $10,245 2/29/16 $10,251 $10,467 $10,270 3/31/16 $10,279 $10,564 $10,294 4/30/16 $10,271 $10,604 $10,293 5/31/16 $10,255 $10,607 $10,277 6/30/16 $10,358 $10,798 $10,379 7/31/16 $10,353 $10,866 $10,375 8/31/16 $10,321 $10,854 $10,341 9/30/16 $10,335 $10,847 $10,359 10/31/16 $10,313 $10,765 $10,336 11/30/16 $10,209 $10,510 $10,235 12/31/16 $10,211 $10,524 $10,236 1/31/17 $10,222 $10,546 $10,254 2/28/17 $10,240 $10,616 $10,270 3/31/17 $10,250 $10,611 $10,276 4/30/17 $10,280 $10,693 $10,310 5/31/17 $10,313 $10,775 $10,335 6/30/17 $10,289 $10,764 $10,318 7/31/17 $10,319 $10,810 $10,347 8/31/17 $10,347 $10,908 $10,384 9/30/17 $10,315 $10,855 $10,349 10/31/17 $10,302 $10,862 $10,339 11/30/17 $10,274 $10,848 $10,309 12/31/17 $10,270 $10,898 $10,308 1/31/18 $10,212 $10,772 $10,247 2/28/18 $10,197 $10,670 $10,233 3/31/18 $10,228 $10,738 $10,267 4/30/18 $10,189 $10,659 $10,230 5/31/18 $10,228 $10,734 $10,268 6/30/18 $10,232 $10,722 $10,269 7/31/18 $10,225 $10,724 $10,267 8/31/18 $10,260 $10,793 $10,301 9/30/18 $10,250 $10,724 $10,289 10/31/18 $10,262 $10,639 $10,303 11/30/18 $10,300 $10,702 $10,341 12/31/18 $10,385 $10,899 $10,424 1/31/19 $10,413 $11,015 $10,452 2/28/19 $10,420 $11,008 $10,463 3/31/19 $10,486 $11,220 $10,528 4/30/19 $10,505 $11,223 $10,549 5/31/19 $10,582 $11,422 $10,627 6/30/19 $10,636 $11,565 $10,682 7/31/19 $10,626 $11,591 $10,670 8/31/19 $10,711 $11,891 $10,757 9/30/19 $10,698 $11,828 $10,744 10/31/19 $10,734 $11,863 $10,780 11/30/19 $10,727 $11,857 $10,776 12/31/19 $10,747 $11,849 $10,799 1/31/20 $10,811 $12,077 $10,859 2/29/20 $10,909 $12,294 $10,956 3/31/20 $11,052 $12,222 $11,097 4/30/20 $11,064 $12,439 $11,112 5/31/20 $11,070 $12,497 $11,120 6/30/20 $11,075 $12,576 $11,124 7/31/20 $11,086 $12,764 $11,134 8/31/20 $11,083 $12,661 $11,132 9/30/20 $11,082 $12,654 $11,135 10/31/20 $11,081 $12,597 $11,130 11/30/20 $11,084 $12,721 $11,134 12/31/20 $11,090 $12,739 $11,140 1/31/21 $11,090 $12,647 $11,143 2/28/21 $11,085 $12,465 $11,137 3/31/21 $11,083 $12,309 $11,134 4/30/21 $11,084 $12,406 $11,139 5/31/21 $11,097 $12,447 $11,149 6/30/21 $11,077 $12,534 $11,130 7/31/21 $11,096 $12,674 $11,149 8/31/21 $11,095 $12,650 $11,148 9/30/21 $11,082 $12,541 $11,137 10/31/21 $11,047 $12,537 $11,101 11/30/21 $11,042 $12,574 $11,096 12/31/21 $11,017 $12,542 $11,073 1/31/22 $10,939 $12,272 $10,995 2/28/22 $10,897 $12,135 $10,950 3/31/22 $10,741 $11,798 $10,795 4/30/22 $10,688 $11,350 $10,744 5/31/22 $10,751 $11,423 $10,808 6/30/22 $10,686 $11,244 $10,739 7/31/22 $10,731 $11,519 $10,785 8/31/22 $10,646 $11,193 $10,699 9/30/22 $10,519 $10,710 $10,573 10/31/22 $10,504 $10,571 $10,563 11/30/22 $10,577 $10,960 $10,632 12/31/22 $10,596 $10,910 $10,651 1/31/23 $10,673 $11,246 $10,729 2/28/23 $10,589 $10,955 $10,646 3/31/23 $10,765 $11,234 $10,820 4/30/23 $10,790 $11,302 $10,849 5/31/23 $10,753 $11,179 $10,811 6/30/23 $10,696 $11,139 $10,755 7/31/23 $10,731 $11,131 $10,792 8/31/23 $10,778 $11,060 $10,834 9/30/23 $10,769 $10,779 $10,831 10/31/23 $10,803 $10,609 $10,868 11/30/23 $10,919 $11,089 $10,981 12/31/23 $11,044 $11,514 $11,108 1/31/24 $11,082 $11,482 $11,148 2/29/24 $11,038 $11,320 $11,100 3/31/24 $11,072 $11,424 $11,139 4/30/24 $11,031 $11,136 $11,097 5/31/24 $11,109 $11,324 $11,174 6/30/24 $11,173 $11,431 $11,238 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years SPTS 4.50% 0.99% 1.12% Bloomberg U.S. Aggregate Bond Index 2.63% (0.23%) 1.35% Bloomberg 1-3 Year U.S. Treasury Index 4.51% 1.02% 1.17% | ||||||||
| AssetsNet | $ 4,495,545,407 | $ 4,495,545,407 | $ 4,495,545,407 | $ 4,495,545,407 | $ 4,495,545,407 | $ 4,495,545,407 | $ 4,495,545,407 | $ 4,495,545,407 | $ 4,495,545,407 |
| Holdings Count | Holding | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 |
| Advisory Fees Paid, Amount | $ 1,741,950 | ||||||||
| InvestmentCompanyPortfolioTurnover | 54% | ||||||||
| Additional Fund Statistics [Text Block] | Key Portfolio Statistics Statistic Value Total Net Assets $4,495,545,407 # of Portfolio Holdings 97 Portfolio Turnover Rate 54% Total Advisory Fees Paid $1,741,950 | ||||||||
| Holdings [Text Block] | Maturity Weightings Maturity Duration % Value of Total Net Assets 1 to 2 Years 54.7% 2 to 3 Years 44.2% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets U.S. Treasury Notes, 5.00%, due 08/31/25 2.6% U.S. Treasury Notes, 5.00%, due 09/30/25 2.3% U.S. Treasury Notes, 4.25%, due 10/15/25 1.9% U.S. Treasury Notes, 4.25%, due 01/31/26 1.9% U.S. Treasury Notes, 4.63%, due 09/15/26 1.9% U.S. Treasury Notes, 4.50%, due 03/31/26 1.8% U.S. Treasury Notes, 4.38%, due 08/15/26 1.8% U.S. Treasury Notes, 4.88%, due 05/31/26 1.8% U.S. Treasury Notes, 4.13%, due 06/15/26 1.8% U.S. Treasury Notes, 4.00%, due 12/15/25 1.6% | ||||||||
| Material Fund Change [Text Block] | Material Fund Changes Effective August 1, 2023 the Management Fee for the Fund was reduced from 0.06% to 0.03%. | ||||||||
| C000047965 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR Portfolio Intermediate Term Treasury ETF | ||||||||
| Trading Symbol | SPTI | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR Portfolio Intermediate Term Treasury ETF (the "Portfolio") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Portfolio, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C817"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Portfolio costs for the last year? Portfolio Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR Portfolio Intermediate Term Treasury ETF $3 0.03% Effective August 1, 2023 the management fee was reduced from 0.06% to 0.03%. | ||||||||
| Expenses Paid, Amount | $ 3 | ||||||||
| Expense Ratio, Percent | 0.03% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Uncertainty around the future path of Federal Reserve (“Fed”) policy as well as high interest rates were the primary drivers of Fund performance during the reporting period. Following record high inflation stemming from the 2020 pandemic, the Fed embarked on an aggressive hiking path that saw a 5.25% increase in interest rates, with the last 25bp rate hike occurring in July 2023. The Fed has been on pause ever since, waiting for the economy to fully absorb the effects from their policy tightening. By the end of the reporting period, the Fed still deemed inflation too high for the committee to start lowering interest rates, and reiterated the importance of seeing more “good data”, with lower CPI and PCE readings being the most important indicators of a cooling economy. Fixed income markets were sensitive data during the reporting period, as evidenced by the moves in Treasury yields. Ten-year yields reached a high of 4.99% in October on the back of still-high inflation data, but soon dropped to a low of 3.75% in December after the Fed signaled they may start cutting rates in the first half of 2024. As inflation data ticked back up in subsequent months, yields followed suit with 10-year yields ending the reporting period at 4.39%. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C822"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | SPTI Bloomberg U.S. Aggregate Bond Index Bloomberg 3-10 Year U.S. Treasury Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $9,972 $9,975 $9,974 8/31/14 $10,050 $10,085 $10,038 9/30/14 $10,003 $10,017 $10,002 10/31/14 $10,073 $10,115 $10,074 11/30/14 $10,119 $10,187 $10,126 12/31/14 $10,084 $10,196 $10,099 1/31/15 $10,266 $10,410 $10,265 2/28/15 $10,156 $10,312 $10,173 3/31/15 $10,223 $10,360 $10,228 4/30/15 $10,211 $10,323 $10,218 5/31/15 $10,216 $10,298 $10,222 6/30/15 $10,166 $10,186 $10,181 7/31/15 $10,227 $10,257 $10,223 8/31/15 $10,213 $10,242 $10,228 9/30/15 $10,293 $10,311 $10,307 10/31/15 $10,262 $10,313 $10,272 11/30/15 $10,224 $10,286 $10,238 12/31/15 $10,235 $10,252 $10,218 1/31/16 $10,370 $10,393 $10,385 2/29/16 $10,418 $10,467 $10,438 3/31/16 $10,438 $10,564 $10,458 4/30/16 $10,430 $10,604 $10,455 5/31/16 $10,414 $10,607 $10,439 6/30/16 $10,571 $10,798 $10,593 7/31/16 $10,576 $10,866 $10,597 8/31/16 $10,516 $10,854 $10,547 9/30/16 $10,538 $10,847 $10,565 10/31/16 $10,485 $10,765 $10,512 11/30/16 $10,295 $10,510 $10,329 12/31/16 $10,292 $10,524 $10,326 1/31/17 $10,318 $10,546 $10,347 2/28/17 $10,346 $10,616 $10,378 3/31/17 $10,352 $10,611 $10,383 4/30/17 $10,405 $10,693 $10,438 5/31/17 $10,447 $10,775 $10,480 6/30/17 $10,419 $10,764 $10,452 7/31/17 $10,454 $10,810 $10,485 8/31/17 $10,516 $10,908 $10,550 9/30/17 $10,451 $10,855 $10,487 10/31/17 $10,439 $10,862 $10,473 11/30/17 $10,409 $10,848 $10,441 12/31/17 $10,408 $10,898 $10,444 1/31/18 $10,306 $10,772 $10,342 2/28/18 $10,273 $10,670 $10,311 3/31/18 $10,322 $10,738 $10,365 4/30/18 $10,266 $10,659 $10,305 5/31/18 $10,343 $10,734 $10,393 6/30/18 $10,347 $10,722 $10,390 7/31/18 $10,313 $10,724 $10,355 8/31/18 $10,390 $10,793 $10,437 9/30/18 $10,311 $10,724 $10,353 10/31/18 $10,309 $10,639 $10,349 11/30/18 $10,407 $10,702 $10,446 12/31/18 $10,612 $10,899 $10,656 1/31/19 $10,672 $11,015 $10,715 2/28/19 $10,645 $11,008 $10,693 3/31/19 $10,831 $11,220 $10,873 4/30/19 $10,817 $11,223 $10,864 5/31/19 $11,041 $11,422 $11,084 6/30/19 $11,147 $11,565 $11,201 7/31/19 $11,135 $11,591 $11,176 8/31/19 $11,413 $11,891 $11,460 9/30/19 $11,331 $11,828 $11,382 10/31/19 $11,365 $11,863 $11,411 11/30/19 $11,314 $11,857 $11,366 12/31/19 $11,287 $11,849 $11,342 1/31/20 $11,526 $12,077 $11,575 2/29/20 $11,771 $12,294 $11,830 3/31/20 $12,110 $12,222 $12,142 4/30/20 $12,124 $12,439 $12,187 5/31/20 $12,160 $12,497 $12,218 6/30/20 $12,176 $12,576 $12,232 7/31/20 $12,231 $12,764 $12,292 8/31/20 $12,185 $12,661 $12,251 9/30/20 $12,203 $12,654 $12,264 10/31/20 $12,125 $12,597 $12,188 11/30/20 $12,147 $12,721 $12,210 12/31/20 $12,146 $12,739 $12,212 1/31/21 $12,099 $12,647 $12,159 2/28/21 $11,939 $12,465 $11,992 3/31/21 $11,795 $12,309 $11,854 4/30/21 $11,867 $12,406 $11,927 5/31/21 $11,909 $12,447 $11,983 6/30/21 $11,923 $12,534 $11,983 7/31/21 $12,067 $12,674 $12,127 8/31/21 $12,032 $12,650 $12,093 9/30/21 $11,914 $12,541 $11,976 10/31/21 $11,826 $12,537 $11,887 11/30/21 $11,883 $12,574 $11,943 12/31/21 $11,837 $12,542 $11,907 1/31/22 $11,645 $12,272 $11,706 2/28/22 $11,594 $12,135 $11,652 3/31/22 $11,206 $11,798 $11,266 4/30/22 $10,936 $11,350 $10,995 5/31/22 $11,019 $11,423 $11,077 6/30/22 $10,927 $11,244 $10,987 7/31/22 $11,150 $11,519 $11,206 8/31/22 $10,823 $11,193 $10,885 9/30/22 $10,471 $10,710 $10,528 10/31/22 $10,396 $10,571 $10,453 11/30/22 $10,657 $10,960 $10,716 12/31/22 $10,577 $10,910 $10,657 1/31/23 $10,832 $11,246 $10,895 2/28/23 $10,566 $10,955 $10,628 3/31/23 $10,890 $11,234 $10,952 4/30/23 $10,966 $11,302 $11,033 5/31/23 $10,849 $11,179 $10,918 6/30/23 $10,718 $11,139 $10,784 7/31/23 $10,709 $11,131 $10,776 8/31/23 $10,687 $11,060 $10,755 9/30/23 $10,506 $10,779 $10,578 10/31/23 $10,420 $10,609 $10,488 11/30/23 $10,747 $11,089 $10,810 12/31/23 $11,026 $11,514 $11,112 1/31/24 $11,057 $11,482 $11,124 2/29/24 $10,885 $11,320 $10,955 3/31/24 $10,944 $11,424 $11,021 4/30/24 $10,721 $11,136 $10,791 5/31/24 $10,875 $11,324 $10,944 6/30/24 $10,984 $11,431 $11,060 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years SPTI 2.52% (0.30%) 0.94% Bloomberg U.S. Aggregate Bond Index 2.63% (0.23%) 1.35% Bloomberg 3-10 Year U.S. Treasury Index 2.55% (0.26%) 1.01% | ||||||||
| AssetsNet | $ 5,801,347,662 | $ 5,801,347,662 | $ 5,801,347,662 | $ 5,801,347,662 | $ 5,801,347,662 | $ 5,801,347,662 | $ 5,801,347,662 | $ 5,801,347,662 | $ 5,801,347,662 |
| Holdings Count | Holding | 110 | 110 | 110 | 110 | 110 | 110 | 110 | 110 | 110 |
| Advisory Fees Paid, Amount | $ 1,516,440 | ||||||||
| InvestmentCompanyPortfolioTurnover | 19% | ||||||||
| Additional Fund Statistics [Text Block] | Key Portfolio Statistics Statistic Value Total Net Assets $5,801,347,662 # of Portfolio Holdings 110 Portfolio Turnover Rate 19% Total Advisory Fees Paid $1,516,440 | ||||||||
| Holdings [Text Block] | Maturity Weightings Maturity Duration % Value of Total Net Assets 0 to 1 Year 1.6% 3 to 5 Years 50.1% 5 to 10 Years 49.8% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets U.S. Treasury Notes, 4.50%, due 11/15/33 2.5% U.S. Treasury Notes, 2.75%, due 08/15/32 2.3% U.S. Treasury Notes, 4.13%, due 11/15/32 2.2% U.S. Treasury Notes, 3.88%, due 08/15/33 2.2% U.S. Treasury Notes, 3.38%, due 05/15/33 2.1% U.S. Treasury Notes, 3.50%, due 01/31/28 2.0% U.S. Treasury Notes, 4.00%, due 02/15/34 2.0% U.S. Treasury Notes, 1.75%, due 01/31/29 1.9% U.S. Treasury Notes, 4.13%, due 10/31/27 1.8% U.S. Treasury Notes, 1.25%, due 08/15/31 1.7% | ||||||||
| Material Fund Change [Text Block] | Material Fund Changes Effective August 1, 2023 the management fee was reduced from 0.06% to 0.03%. | ||||||||
| C000047966 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR Portfolio Long Term Treasury ETF | ||||||||
| Trading Symbol | SPTL | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR Portfolio Long Term Treasury ETF (the "Portfolio") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Portfolio, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C842"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Portfolio costs for the last year? Portfolio Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR Portfolio Long Term Treasury ETF $3 0.03% Effective August 1, 2023 the management fee was reduced from 0.06% to 0.03%. | ||||||||
| Expenses Paid, Amount | $ 3 | ||||||||
| Expense Ratio, Percent | 0.03% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Uncertainty around the future path of Federal Reserve (“Fed”) policy as well as high interest rates were the primary drivers of Fund performance during the reporting period. Following record high inflation stemming from the 2020 pandemic, the Fed embarked on an aggressive hiking path that saw a 5.25% increase in interest rates, with the last 25bp rate hike occurring in July 2023. The Fed has been on pause ever since, waiting for the economy to fully absorb the effects from their policy tightening. By the end of the reporting period, the Fed still deemed inflation too high for the committee to start lowering interest rates, and reiterated the importance of seeing more “good data”, with lower CPI and PCE readings being the most important indicators of a cooling economy. Fixed income markets were sensitive to data prints during the reporting period, with 30-year yields oscillating between 5.11% and 3.95% throughout the reporting period depending on the most recent inflation readings. Since 2023-year end, inflation data ticked back up slowly and yields followed suit, with 10-year yields ending the reporting period at 4.56%. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C847"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | SPTL Bloomberg U.S. Aggregate Bond Index Bloomberg Long U.S. Treasury Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $10,057 $9,975 $10,055 8/31/14 $10,491 $10,085 $10,463 9/30/14 $10,290 $10,017 $10,269 10/31/14 $10,555 $10,115 $10,551 11/30/14 $10,858 $10,187 $10,843 12/31/14 $11,168 $10,196 $11,154 1/31/15 $12,168 $10,410 $12,108 2/28/15 $11,489 $10,312 $11,461 3/31/15 $11,602 $10,360 $11,595 4/30/15 $11,249 $10,323 $11,235 5/31/15 $10,996 $10,298 $11,056 6/30/15 $10,596 $10,186 $10,633 7/31/15 $11,044 $10,257 $11,005 8/31/15 $10,972 $10,242 $11,003 9/30/15 $11,177 $10,311 $11,172 10/31/15 $11,130 $10,313 $11,111 11/30/15 $11,038 $10,286 $11,020 12/31/15 $11,014 $10,252 $11,018 1/31/16 $11,587 $10,393 $11,572 2/29/16 $11,909 $10,467 $11,917 3/31/16 $11,913 $10,564 $11,917 4/30/16 $11,840 $10,604 $11,857 5/31/16 $11,922 $10,607 $11,951 6/30/16 $12,703 $10,798 $12,685 7/31/16 $12,961 $10,866 $12,969 8/31/16 $12,823 $10,854 $12,846 9/30/16 $12,652 $10,847 $12,639 10/31/16 $12,119 $10,765 $12,123 11/30/16 $11,160 $10,510 $11,224 12/31/16 $11,116 $10,524 $11,164 1/31/17 $11,195 $10,546 $11,208 2/28/17 $11,369 $10,616 $11,382 3/31/17 $11,299 $10,611 $11,320 4/30/17 $11,473 $10,693 $11,494 5/31/17 $11,681 $10,775 $11,722 6/30/17 $11,759 $10,764 $11,769 7/31/17 $11,688 $10,810 $11,696 8/31/17 $12,072 $10,908 $12,097 9/30/17 $11,804 $10,855 $11,836 10/31/17 $11,799 $10,862 $11,826 11/30/17 $11,879 $10,848 $11,911 12/31/17 $12,098 $10,898 $12,116 1/31/18 $11,698 $10,772 $11,725 2/28/18 $11,353 $10,670 $11,373 3/31/18 $11,669 $10,738 $11,718 4/30/18 $11,432 $10,659 $11,490 5/31/18 $11,649 $10,734 $11,734 6/30/18 $11,720 $10,722 $11,755 7/31/18 $11,557 $10,724 $11,582 8/31/18 $11,708 $10,793 $11,765 9/30/18 $11,388 $10,724 $11,416 10/31/18 $11,070 $10,639 $11,068 11/30/18 $11,269 $10,702 $11,278 12/31/18 $11,918 $10,899 $11,895 1/31/19 $11,954 $11,015 $11,975 2/28/19 $11,804 $11,008 $11,828 3/31/19 $12,441 $11,220 $12,450 4/30/19 $12,203 $11,223 $12,227 5/31/19 $13,018 $11,422 $13,027 6/30/19 $13,146 $11,565 $13,201 7/31/19 $13,193 $11,591 $13,222 8/31/19 $14,593 $11,891 $14,611 9/30/19 $14,220 $11,828 $14,246 10/31/19 $14,069 $11,863 $14,124 11/30/19 $14,013 $11,857 $14,051 12/31/19 $13,577 $11,849 $13,659 1/31/20 $14,594 $12,077 $14,594 2/29/20 $15,555 $12,294 $15,571 3/31/20 $16,577 $12,222 $16,514 4/30/20 $16,731 $12,439 $16,848 5/31/20 $16,436 $12,497 $16,533 6/30/20 $16,504 $12,576 $16,555 7/31/20 $17,199 $12,764 $17,254 8/31/20 $16,362 $12,661 $16,511 9/30/20 $16,495 $12,654 $16,574 10/31/20 $15,948 $12,597 $16,075 11/30/20 $16,197 $12,721 $16,268 12/31/20 $16,006 $12,739 $16,077 1/31/21 $15,455 $12,647 $15,497 2/28/21 $14,591 $12,465 $14,634 3/31/21 $13,865 $12,309 $13,904 4/30/21 $14,190 $12,406 $14,228 5/31/21 $14,166 $12,447 $14,292 6/30/21 $14,758 $12,534 $14,803 7/31/21 $15,296 $12,674 $15,343 8/31/21 $15,264 $12,650 $15,311 9/30/21 $14,822 $12,541 $14,872 10/31/21 $15,116 $12,537 $15,149 11/30/21 $15,502 $12,574 $15,551 12/31/21 $15,208 $12,542 $15,330 1/31/22 $14,647 $12,272 $14,695 2/28/22 $14,430 $12,135 $14,480 3/31/22 $13,687 $11,798 $13,707 4/30/22 $12,451 $11,350 $12,488 5/31/22 $12,206 $11,423 $12,252 6/30/22 $12,036 $11,244 $12,071 7/31/22 $12,352 $11,519 $12,394 8/31/22 $11,805 $11,193 $11,845 9/30/22 $10,862 $10,710 $10,909 10/31/22 $10,276 $10,571 $10,304 11/30/22 $10,994 $10,960 $11,033 12/31/22 $10,740 $10,910 $10,845 1/31/23 $11,513 $11,246 $11,540 2/28/23 $10,954 $10,955 $10,993 3/31/23 $11,472 $11,234 $11,514 4/30/23 $11,523 $11,302 $11,574 5/31/23 $11,206 $11,179 $11,250 6/30/23 $11,204 $11,139 $11,248 7/31/23 $10,960 $11,131 $11,004 8/31/23 $10,659 $11,060 $10,698 9/30/23 $9,878 $10,779 $9,917 10/31/23 $9,390 $10,609 $9,428 11/30/23 $10,257 $11,089 $10,291 12/31/23 $11,096 $11,514 $11,177 1/31/24 $10,897 $11,482 $10,931 2/29/24 $10,641 $11,320 $10,682 3/31/24 $10,749 $11,424 $10,813 4/30/24 $10,112 $11,136 $10,154 5/31/24 $10,396 $11,324 $10,444 6/30/24 $10,568 $11,431 $10,616 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years SPTL (5.60%) (4.30%) 0.53% Bloomberg U.S. Aggregate Bond Index 2.63% (0.23%) 1.35% Bloomberg Long U.S. Treasury Index (5.61%) (4.26%) 0.60% | ||||||||
| AssetsNet | $ 10,018,815,154 | $ 10,018,815,154 | $ 10,018,815,154 | $ 10,018,815,154 | $ 10,018,815,154 | $ 10,018,815,154 | $ 10,018,815,154 | $ 10,018,815,154 | $ 10,018,815,154 |
| Holdings Count | Holding | 86 | 86 | 86 | 86 | 86 | 86 | 86 | 86 | 86 |
| Advisory Fees Paid, Amount | $ 2,587,954 | ||||||||
| InvestmentCompanyPortfolioTurnover | 3% | ||||||||
| Additional Fund Statistics [Text Block] | Key Portfolio Statistics Statistic Value Total Net Assets $10,018,815,154 # of Portfolio Holdings 86 Portfolio Turnover Rate 3% Total Advisory Fees Paid $2,587,954 | ||||||||
| Holdings [Text Block] | Maturity Weightings Maturity Duration % Value of Total Net Assets 0 to 1 Year 0.9% 10 to 20 Years 42.6% 20 to 30 Years 56.1% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets U.S. Treasury Bonds, 4.75%, due 11/15/53 2.9% U.S. Treasury Bonds, 4.25%, due 02/15/54 2.9% U.S. Treasury Bonds, 4.13%, due 08/15/53 2.5% U.S. Treasury Bonds, 4.00%, due 11/15/52 2.3% U.S. Treasury Bonds, 3.63%, due 02/15/53 2.2% U.S. Treasury Bonds, 3.63%, due 05/15/53 2.2% U.S. Treasury Bonds, 4.38%, due 08/15/43 2.1% U.S. Treasury Bonds, 4.63%, due 05/15/54 2.1% U.S. Treasury Bonds, 1.75%, due 08/15/41 2.1% U.S. Treasury Bonds, 2.88%, due 05/15/52 2.1% | ||||||||
| Material Fund Change [Text Block] | Material Fund Changes Effective August 1, 2023 the management fee was reduced from 0.06% to 0.03%. | ||||||||
| C000055010 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR Portfolio Short Term Corporate Bond ETF | ||||||||
| Trading Symbol | SPSB | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR Portfolio Short Term Corporate Bond ETF (the "Portfolio") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Portfolio, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C866"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Portfolio costs for the last year? Portfolio Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR Portfolio Short Term Corporate Bond ETF $4 0.04% | ||||||||
| Expenses Paid, Amount | $ 4 | ||||||||
| Expense Ratio, Percent | 0.04% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Uncertainty around the future path of Federal Reserve (the “Fed”) policy as well as high interest rates were the primary drivers of Fund performance during the reporting period. Following record high inflation stemming from the 2020 pandemic, the Fed embarked on an aggressive hiking path that saw a 5.25% increase in interest rates, with the last 25bp rate hike occurring in July 2023. The Fed has been on pause ever since, waiting for the economy to fully absorb the effects from their policy tightening. By the end of the reporting period, the Fed still deemed inflation too high to start lowering interest rates and reiterated the importance of seeing more “good data”, with lower CPI and PCE readings being the most important indicators of a cooling economy. Fixed income markets were sensitive to data during the reporting period, and credit spreads increased to period highs in the fourth quarter as inflation remained stubborn. However, as soon as inflation readings eased, so too did credit spreads decline to period lows, resulting in modestly positive performance for the period. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C871"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | SPSB Bloomberg U.S. Aggregate Bond Index Bloomberg U.S. 1-3 Year Corporate Bond Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $9,984 $9,975 $10,002 8/31/14 $10,009 $10,085 $10,023 9/30/14 $9,993 $10,017 $10,006 10/31/14 $10,019 $10,115 $10,033 11/30/14 $10,022 $10,187 $10,049 12/31/14 $10,002 $10,196 $10,019 1/31/15 $10,047 $10,410 $10,075 2/28/15 $10,061 $10,312 $10,078 3/31/15 $10,080 $10,360 $10,097 4/30/15 $10,077 $10,323 $10,115 5/31/15 $10,073 $10,298 $10,125 6/30/15 $10,061 $10,186 $10,104 7/31/15 $10,080 $10,257 $10,111 8/31/15 $10,046 $10,242 $10,095 9/30/15 $10,081 $10,311 $10,134 10/31/15 $10,100 $10,313 $10,149 11/30/15 $10,119 $10,286 $10,142 12/31/15 $10,086 $10,252 $10,120 1/31/16 $10,082 $10,393 $10,145 2/29/16 $10,125 $10,467 $10,147 3/31/16 $10,189 $10,564 $10,238 4/30/16 $10,226 $10,604 $10,280 5/31/16 $10,217 $10,607 $10,280 6/30/16 $10,284 $10,798 $10,346 7/31/16 $10,315 $10,866 $10,367 8/31/16 $10,306 $10,854 $10,369 9/30/16 $10,320 $10,847 $10,379 10/31/16 $10,318 $10,765 $10,385 11/30/16 $10,274 $10,510 $10,344 12/31/16 $10,300 $10,524 $10,360 1/31/17 $10,317 $10,546 $10,392 2/28/17 $10,342 $10,616 $10,425 3/31/17 $10,353 $10,611 $10,432 4/30/17 $10,378 $10,693 $10,460 5/31/17 $10,404 $10,775 $10,486 6/30/17 $10,409 $10,764 $10,493 7/31/17 $10,449 $10,810 $10,535 8/31/17 $10,471 $10,908 $10,555 9/30/17 $10,470 $10,855 $10,555 10/31/17 $10,476 $10,862 $10,565 11/30/17 $10,448 $10,848 $10,539 12/31/17 $10,462 $10,898 $10,551 1/31/18 $10,434 $10,772 $10,532 2/28/18 $10,401 $10,670 $10,508 3/31/18 $10,414 $10,738 $10,511 4/30/18 $10,420 $10,659 $10,521 5/31/18 $10,455 $10,734 $10,562 6/30/18 $10,453 $10,722 $10,561 7/31/18 $10,485 $10,724 $10,586 8/31/18 $10,531 $10,793 $10,629 9/30/18 $10,530 $10,724 $10,635 10/31/18 $10,525 $10,639 $10,637 11/30/18 $10,539 $10,702 $10,643 12/31/18 $10,613 $10,899 $10,718 1/31/19 $10,704 $11,015 $10,800 2/28/19 $10,733 $11,008 $10,833 3/31/19 $10,805 $11,220 $10,913 4/30/19 $10,835 $11,223 $10,946 5/31/19 $10,893 $11,422 $11,006 6/30/19 $10,969 $11,565 $11,083 7/31/19 $10,979 $11,591 $11,091 8/31/19 $11,056 $11,891 $11,177 9/30/19 $11,072 $11,828 $11,189 10/31/19 $11,111 $11,863 $11,237 11/30/19 $11,121 $11,857 $11,247 12/31/19 $11,161 $11,849 $11,286 1/31/20 $11,220 $12,077 $11,347 2/29/20 $11,278 $12,294 $11,415 3/31/20 $11,002 $12,222 $11,112 4/30/20 $11,263 $12,439 $11,363 5/31/20 $11,386 $12,497 $11,487 6/30/20 $11,462 $12,576 $11,565 7/31/20 $11,506 $12,764 $11,617 8/31/20 $11,527 $12,661 $11,640 9/30/20 $11,522 $12,654 $11,635 10/31/20 $11,531 $12,597 $11,656 11/30/20 $11,568 $12,721 $11,690 12/31/20 $11,594 $12,739 $11,714 1/31/21 $11,590 $12,647 $11,717 2/28/21 $11,588 $12,465 $11,723 3/31/21 $11,585 $12,309 $11,711 4/30/21 $11,602 $12,406 $11,732 5/31/21 $11,620 $12,447 $11,756 6/30/21 $11,611 $12,534 $11,743 7/31/21 $11,625 $12,674 $11,761 8/31/21 $11,626 $12,650 $11,764 9/30/21 $11,624 $12,541 $11,762 10/31/21 $11,581 $12,537 $11,721 11/30/21 $11,551 $12,574 $11,697 12/31/21 $11,567 $12,542 $11,699 1/31/22 $11,470 $12,272 $11,608 2/28/22 $11,412 $12,135 $11,546 3/31/22 $11,277 $11,798 $11,410 4/30/22 $11,190 $11,350 $11,326 5/31/22 $11,270 $11,423 $11,405 6/30/22 $11,168 $11,244 $11,294 7/31/22 $11,278 $11,519 $11,394 8/31/22 $11,176 $11,193 $11,314 9/30/22 $11,026 $10,710 $11,155 10/31/22 $11,008 $10,571 $11,133 11/30/22 $11,158 $10,960 $11,283 12/31/22 $11,184 $10,910 $11,311 1/31/23 $11,306 $11,246 $11,426 2/28/23 $11,228 $10,955 $11,350 3/31/23 $11,344 $11,234 $11,451 4/30/23 $11,398 $11,302 $11,515 5/31/23 $11,375 $11,179 $11,493 6/30/23 $11,372 $11,139 $11,482 7/31/23 $11,437 $11,131 $11,556 8/31/23 $11,469 $11,060 $11,584 9/30/23 $11,453 $10,779 $11,571 10/31/23 $11,479 $10,609 $11,597 11/30/23 $11,656 $11,089 $11,773 12/31/23 $11,815 $11,514 $11,930 1/31/24 $11,862 $11,482 $11,985 2/29/24 $11,833 $11,320 $11,960 3/31/24 $11,902 $11,424 $12,024 4/30/24 $11,873 $11,136 $11,997 5/31/24 $11,966 $11,324 $12,091 6/30/24 $12,020 $11,431 $12,149 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years SPSB 5.82% 1.86% 1.87% Bloomberg U.S. Aggregate Bond Index 2.63% (0.23%) 1.35% Bloomberg U.S. 1-3 Year Corporate Bond Index 5.83% 1.86% 1.97% | ||||||||
| AssetsNet | $ 7,631,871,014 | $ 7,631,871,014 | $ 7,631,871,014 | $ 7,631,871,014 | $ 7,631,871,014 | $ 7,631,871,014 | $ 7,631,871,014 | $ 7,631,871,014 | $ 7,631,871,014 |
| Holdings Count | Holding | 1,446 | 1,446 | 1,446 | 1,446 | 1,446 | 1,446 | 1,446 | 1,446 | 1,446 |
| Advisory Fees Paid, Amount | $ 2,977,377 | ||||||||
| InvestmentCompanyPortfolioTurnover | 51% | ||||||||
| Additional Fund Statistics [Text Block] | Key Portfolio Statistics Statistic Value Total Net Assets $7,631,871,014 # of Portfolio Holdings 1,446 Portfolio Turnover Rate 51% Total Advisory Fees Paid $2,977,377 | ||||||||
| Holdings [Text Block] | Top Sectors Sector % Value of Total Net Assets Financial 46.2% Consumer, Non-Cyclical 12.6% Consumer, Cyclical 8.6% Industrial 7.3% Technology 7.2% Utilities 5.4% Communications 5.3% Energy 4.7% Basic Materials 1.5% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets State Street Institutional U.S. Government Money Market Fund, Class G Shares, INST, 5.30%, due 12/31/30 2.9% Goldman Sachs Bank USA, 5.28%, due 03/18/27 0.5% Apple, Inc., 2.45%, due 08/04/26 0.4% AbbVie, Inc., 2.95%, due 11/21/26 0.4% Pfizer Investment Enterprises Pte. Ltd., 4.45%, due 05/19/26 0.4% Microsoft Corp., 2.40%, due 08/08/26 0.4% Boeing Co., 2.20%, due 02/04/26 0.4% JPMorgan Chase Bank NA, 5.11%, due 12/08/26 0.4% Amazon.com, Inc., 1.00%, due 05/12/26 0.4% Bank of America Corp., 1.32%, due 06/19/26 0.4% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000066454 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR Portfolio Intermediate Term Corporate Bond ETF | ||||||||
| Trading Symbol | SPIB | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR Portfolio Intermediate Term Corporate Bond ETF (the "Portfolio") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Portfolio, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C890"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Portfolio costs for the last year? Portfolio Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR Portfolio Intermediate Term Corporate Bond ETF $4 0.04% | ||||||||
| Expenses Paid, Amount | $ 4 | ||||||||
| Expense Ratio, Percent | 0.04% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Uncertainty around the future path of Federal Reserve (“Fed”) policy as well as high interest rates were the primary drivers of Fund performance during the reporting period. Following record high inflation stemming from the 2020 pandemic, the Fed embarked on an aggressive hiking path that saw a 5.25% increase in interest rates, with the last 25bp rate hike occurring in July 2023. The Fed has been on pause ever since, waiting for the economy to fully absorb the effects from their policy tightening. By the end of the reporting period, the Fed still deemed inflation too high to start lowering interest rates and reiterated the importance of seeing more “good data”, with lower CPI and PCE readings being the most important indicators of a cooling economy. Fixed income markets were sensitive to data during the reporting period, and credit spreads increased to period highs in the fourth quarter as inflation remained stubborn. However, as soon as inflation readings eased, so too did credit spreads decline to period lows, resulting in modestly positive performance for the period. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C895"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | SPIB Bloomberg U.S. Aggregate Bond Index Bloomberg U.S. Intermediate Corporate Bond Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $9,958 $9,975 $9,985 8/31/14 $10,044 $10,085 $10,071 9/30/14 $9,967 $10,017 $9,986 10/31/14 $10,044 $10,115 $10,056 11/30/14 $10,093 $10,187 $10,109 12/31/14 $10,078 $10,196 $10,071 1/31/15 $10,255 $10,410 $10,264 2/28/15 $10,185 $10,312 $10,221 3/31/15 $10,238 $10,360 $10,262 4/30/15 $10,236 $10,323 $10,263 5/31/15 $10,208 $10,298 $10,254 6/30/15 $10,113 $10,186 $10,150 7/31/15 $10,157 $10,257 $10,180 8/31/15 $10,110 $10,242 $10,147 9/30/15 $10,180 $10,311 $10,222 10/31/15 $10,212 $10,313 $10,248 11/30/15 $10,214 $10,286 $10,239 12/31/15 $10,131 $10,252 $10,180 1/31/16 $10,182 $10,393 $10,235 2/29/16 $10,257 $10,467 $10,280 3/31/16 $10,417 $10,564 $10,461 4/30/16 $10,504 $10,604 $10,548 5/31/16 $10,479 $10,607 $10,541 6/30/16 $10,670 $10,798 $10,695 7/31/16 $10,731 $10,866 $10,775 8/31/16 $10,727 $10,854 $10,782 9/30/16 $10,753 $10,847 $10,790 10/31/16 $10,706 $10,765 $10,760 11/30/16 $10,500 $10,510 $10,566 12/31/16 $10,537 $10,524 $10,592 1/31/17 $10,583 $10,546 $10,633 2/28/17 $10,663 $10,616 $10,715 3/31/17 $10,653 $10,611 $10,715 4/30/17 $10,739 $10,693 $10,804 5/31/17 $10,818 $10,775 $10,879 6/30/17 $10,817 $10,764 $10,875 7/31/17 $10,895 $10,810 $10,955 8/31/17 $10,946 $10,908 $11,015 9/30/17 $10,921 $10,855 $10,989 10/31/17 $10,944 $10,862 $11,008 11/30/17 $10,910 $10,848 $10,974 12/31/17 $10,938 $10,898 $11,001 1/31/18 $10,855 $10,772 $10,915 2/28/18 $10,751 $10,670 $10,830 3/31/18 $10,759 $10,738 $10,837 4/30/18 $10,710 $10,659 $10,788 5/31/18 $10,754 $10,734 $10,848 6/30/18 $10,756 $10,721 $10,826 7/31/18 $10,801 $10,724 $10,874 8/31/18 $10,859 $10,793 $10,940 9/30/18 $10,842 $10,723 $10,913 10/31/18 $10,780 $10,639 $10,864 11/30/18 $10,761 $10,702 $10,863 12/31/18 $10,881 $10,899 $10,976 1/31/19 $11,105 $11,014 $11,172 2/28/19 $11,129 $11,008 $11,214 3/31/19 $11,314 $11,219 $11,396 4/30/19 $11,354 $11,222 $11,451 5/31/19 $11,476 $11,422 $11,567 6/30/19 $11,662 $11,565 $11,753 7/31/19 $11,676 $11,591 $11,780 8/31/19 $11,889 $11,891 $11,985 9/30/19 $11,868 $11,828 $11,958 10/31/19 $11,924 $11,863 $12,032 11/30/19 $11,941 $11,857 $12,037 12/31/19 $11,993 $11,849 $12,089 1/31/20 $12,163 $12,077 $12,266 2/29/20 $12,264 $12,294 $12,386 3/31/20 $11,608 $12,222 $11,708 4/30/20 $12,098 $12,439 $12,177 5/31/20 $12,337 $12,497 $12,399 6/30/20 $12,544 $12,576 $12,601 7/31/20 $12,715 $12,764 $12,791 8/31/20 $12,723 $12,661 $12,791 9/30/20 $12,694 $12,654 $12,768 10/31/20 $12,690 $12,597 $12,773 11/30/20 $12,845 $12,721 $12,926 12/31/20 $12,918 $12,739 $12,993 1/31/21 $12,852 $12,647 $12,943 2/28/21 $12,730 $12,465 $12,838 3/31/21 $12,630 $12,309 $12,708 4/30/21 $12,724 $12,406 $12,802 5/31/21 $12,772 $12,447 $12,876 6/30/21 $12,834 $12,534 $12,925 7/31/21 $12,931 $12,674 $13,027 8/31/21 $12,905 $12,650 $13,002 9/30/21 $12,826 $12,541 $12,935 10/31/21 $12,768 $12,537 $12,864 11/30/21 $12,738 $12,574 $12,844 12/31/21 $12,754 $12,542 $12,863 1/31/22 $12,521 $12,272 $12,619 2/28/22 $12,389 $12,135 $12,482 3/31/22 $12,086 $11,798 $12,187 4/30/22 $11,719 $11,350 $11,836 5/31/22 $11,840 $11,423 $11,942 6/30/22 $11,610 $11,244 $11,709 7/31/22 $11,899 $11,519 $11,987 8/31/22 $11,607 $11,193 $11,739 9/30/22 $11,220 $10,710 $11,344 10/31/22 $11,171 $10,571 $11,297 11/30/22 $11,561 $10,960 $11,661 12/31/22 $11,527 $10,910 $11,653 1/31/23 $11,842 $11,246 $11,947 2/28/23 $11,598 $10,955 $11,711 3/31/23 $11,833 $11,234 $11,944 4/30/23 $11,911 $11,302 $12,037 5/31/23 $11,812 $11,179 $11,945 6/30/23 $11,805 $11,139 $11,925 7/31/23 $11,868 $11,131 $11,996 8/31/23 $11,848 $11,060 $11,975 9/30/23 $11,676 $10,779 $11,810 10/31/23 $11,585 $10,609 $11,721 11/30/23 $12,025 $11,089 $12,157 12/31/23 $12,362 $11,514 $12,503 1/31/24 $12,392 $11,482 $12,527 2/29/24 $12,283 $11,320 $12,416 3/31/24 $12,399 $11,424 $12,535 4/30/24 $12,231 $11,136 $12,366 5/31/24 $12,407 $11,324 $12,541 6/30/24 $12,485 $11,431 $12,627 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years SPIB 5.90% 1.38% 2.28% Bloomberg U.S. Aggregate Bond Index 2.63% (0.23%) 1.35% Bloomberg U.S. Intermediate Corporate Bond Index 5.89% 1.45% 2.36% | ||||||||
| AssetsNet | $ 8,356,479,441 | $ 8,356,479,441 | $ 8,356,479,441 | $ 8,356,479,441 | $ 8,356,479,441 | $ 8,356,479,441 | $ 8,356,479,441 | $ 8,356,479,441 | $ 8,356,479,441 |
| Holdings Count | Holding | 4,670 | 4,670 | 4,670 | 4,670 | 4,670 | 4,670 | 4,670 | 4,670 | 4,670 |
| Advisory Fees Paid, Amount | $ 2,966,809 | ||||||||
| InvestmentCompanyPortfolioTurnover | 30% | ||||||||
| Additional Fund Statistics [Text Block] | Key Portfolio Statistics Statistic Value Total Net Assets $8,356,479,441 # of Portfolio Holdings 4,670 Portfolio Turnover Rate 30% Total Advisory Fees Paid $2,966,809 | ||||||||
| Holdings [Text Block] | Top Sectors Sector % Value of Total Net Assets Financial 40.8% Consumer, Non-Cyclical 14.4% Industrial 7.7% Utilities 7.5% Consumer, Cyclical 7.4% Communications 6.5% Technology 6.2% Energy 5.8% Basic Materials 2.3% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets JPMorgan Chase & Co., 5.72%, due 09/14/33 0.3% Bank of America Corp., 5.29%, due 04/25/34 0.3% Citigroup, Inc., 5.45%, due 06/11/35 0.2% Wells Fargo Bank NA, 5.45%, due 08/07/26 0.2% Bristol-Myers Squibb Co., 3.25%, due 02/27/27 0.2% Morgan Stanley, 5.83%, due 04/19/35 0.2% Wells Fargo & Co., 5.71%, due 04/22/28 0.2% Bank of America Corp., 1.73%, due 07/22/27 0.1% Morgan Stanley, 3.88%, due 01/27/26 0.1% Goldman Sachs Bank USA, 5.41%, due 05/21/27 0.1% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000066455 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR Portfolio Long Term Corporate Bond ETF | ||||||||
| Trading Symbol | SPLB | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR Portfolio Long Term Corporate Bond ETF (the "Portfolio") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Portfolio, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C914"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Portfolio costs for the last year? Portfolio Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR Portfolio Long Term Corporate Bond ETF $4 0.04% | ||||||||
| Expenses Paid, Amount | $ 4 | ||||||||
| Expense Ratio, Percent | 0.04% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Uncertainty around the future path of Federal Reserve (“Fed”) policy as well as high interest rates were the primary drivers of Fund performance during the reporting period. Following record high inflation stemming from the 2020 pandemic, the Fed embarked on an aggressive hiking path that saw a 5.25% increase in interest rates, with the last 25bp rate hike occurring in July 2023. The Fed has been on pause ever since, waiting for the economy to fully absorb the effects from their policy tightening. By the end of the reporting period, the Fed still deemed inflation too high to start lowering interest rates and reiterated the importance of seeing more “good data”, with lower CPI and PCE readings being the most important indicators of a cooling economy. Fixed income markets were sensitive to data during the reporting period, and credit spreads increased to period highs in the fourth quarter as inflation remained stubborn. However, as soon as inflation readings eased, so too did credit spreads decline to period lows, resulting in modestly positive performance for the period. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C919"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | SPLB Bloomberg U.S. Aggregate Bond Index Bloomberg U.S. Long Term Corporate Bond Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $10,044 $9,975 $10,018 8/31/14 $10,338 $10,085 $10,307 9/30/14 $10,077 $10,017 $10,007 10/31/14 $10,265 $10,115 $10,190 11/30/14 $10,368 $10,187 $10,294 12/31/14 $10,472 $10,196 $10,405 1/31/15 $11,083 $10,410 $10,986 2/28/15 $10,803 $10,312 $10,732 3/31/15 $10,765 $10,360 $10,748 4/30/15 $10,500 $10,323 $10,502 5/31/15 $10,206 $10,298 $10,297 6/30/15 $9,847 $10,186 $9,914 7/31/15 $10,079 $10,257 $10,072 8/31/15 $9,893 $10,242 $9,948 9/30/15 $9,989 $10,311 $10,023 10/31/15 $10,140 $10,313 $10,103 11/30/15 $10,011 $10,286 $10,052 12/31/15 $9,913 $10,252 $9,926 1/31/16 $9,931 $10,393 $9,918 2/29/16 $10,081 $10,467 $10,084 3/31/16 $10,638 $10,564 $10,604 4/30/16 $10,936 $10,604 $10,878 5/31/16 $10,862 $10,607 $10,868 6/30/16 $11,409 $10,798 $11,308 7/31/16 $11,702 $10,866 $11,653 8/31/16 $11,763 $10,854 $11,710 9/30/16 $11,667 $10,847 $11,596 10/31/16 $11,376 $10,765 $11,367 11/30/16 $10,745 $10,510 $10,837 12/31/16 $10,991 $10,524 $11,004 1/31/17 $11,014 $10,546 $11,017 2/28/17 $11,229 $10,616 $11,237 3/31/17 $11,152 $10,611 $11,153 4/30/17 $11,337 $10,693 $11,335 5/31/17 $11,598 $10,775 $11,580 6/30/17 $11,707 $10,764 $11,705 7/31/17 $11,810 $10,810 $11,791 8/31/17 $11,935 $10,908 $11,942 9/30/17 $11,935 $10,855 $11,935 10/31/17 $12,026 $10,862 $12,031 11/30/17 $12,061 $10,848 $12,066 12/31/17 $12,352 $10,898 $12,333 1/31/18 $12,203 $10,772 $12,173 2/28/18 $11,703 $10,670 $11,756 3/31/18 $11,840 $10,738 $11,834 4/30/18 $11,550 $10,659 $11,604 5/31/18 $11,576 $10,734 $11,662 6/30/18 $11,465 $10,722 $11,498 7/31/18 $11,677 $10,724 $11,691 8/31/18 $11,655 $10,793 $11,721 9/30/18 $11,621 $10,724 $11,650 10/31/18 $11,217 $10,639 $11,227 11/30/18 $11,139 $10,702 $11,171 12/31/18 $11,437 $10,899 $11,441 1/31/19 $11,877 $11,015 $11,852 2/28/19 $11,799 $11,008 $11,839 3/31/19 $12,321 $11,220 $12,353 4/30/19 $12,381 $11,223 $12,437 5/31/19 $12,675 $11,422 $12,723 6/30/19 $13,197 $11,565 $13,247 7/31/19 $13,306 $11,591 $13,406 8/31/19 $14,130 $11,891 $14,193 9/30/19 $13,938 $11,828 $13,990 10/31/19 $13,962 $11,863 $14,070 11/30/19 $14,104 $11,857 $14,160 12/31/19 $14,125 $11,849 $14,176 1/31/20 $14,669 $12,077 $14,738 2/29/20 $14,894 $12,294 $15,027 3/31/20 $13,547 $12,222 $13,536 4/30/20 $14,417 $12,439 $14,540 5/31/20 $14,644 $12,497 $14,704 6/30/20 $15,077 $12,576 $15,074 7/31/20 $15,901 $12,764 $16,008 8/31/20 $15,292 $12,661 $15,433 9/30/20 $15,263 $12,654 $15,362 10/31/20 $15,101 $12,597 $15,280 11/30/20 $16,032 $12,721 $16,102 12/31/20 $16,030 $12,739 $16,152 1/31/21 $15,572 $12,647 $15,717 2/28/21 $15,047 $12,465 $15,216 3/31/21 $14,680 $12,309 $14,777 4/30/21 $14,923 $12,406 $15,033 5/31/21 $15,002 $12,447 $15,196 6/30/21 $15,601 $12,534 $15,758 7/31/21 $15,944 $12,674 $16,120 8/31/21 $15,877 $12,650 $16,043 9/30/21 $15,503 $12,541 $15,739 10/31/21 $15,786 $12,537 $15,975 11/30/21 $15,834 $12,574 $16,038 12/31/21 $15,711 $12,542 $15,969 1/31/22 $14,920 $12,272 $15,073 2/28/22 $14,431 $12,135 $14,551 3/31/22 $13,955 $11,798 $14,147 4/30/22 $12,572 $11,350 $12,766 5/31/22 $12,809 $11,423 $12,894 6/30/22 $12,208 $11,244 $12,337 7/31/22 $12,861 $11,519 $12,930 8/31/22 $12,152 $11,193 $12,348 9/30/22 $11,133 $10,710 $11,269 10/31/22 $10,909 $10,571 $11,016 11/30/22 $11,968 $10,960 $12,016 12/31/22 $11,689 $10,910 $11,878 1/31/23 $12,569 $11,246 $12,698 2/28/23 $11,845 $10,955 $12,006 3/31/23 $12,375 $11,234 $12,525 4/30/23 $12,469 $11,302 $12,619 5/31/23 $12,118 $11,179 $12,269 6/30/23 $12,341 $11,139 $12,458 7/31/23 $12,316 $11,131 $12,441 8/31/23 $12,058 $11,060 $12,199 9/30/23 $11,414 $10,779 $11,557 10/31/23 $10,940 $10,609 $11,071 11/30/23 $12,159 $11,089 $12,273 12/31/23 $13,005 $11,514 $13,176 1/31/24 $12,907 $11,482 $13,061 2/29/24 $12,551 $11,320 $12,706 3/31/24 $12,798 $11,424 $12,954 4/30/24 $12,172 $11,136 $12,315 5/31/24 $12,541 $11,324 $12,662 6/30/24 $12,575 $11,431 $12,729 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years SPLB 2.35% (0.95%) 2.35% Bloomberg U.S. Aggregate Bond Index 2.63% (0.23%) 1.35% Bloomberg U.S. Long Term Corporate Bond Index 2.18% (0.79%) 2.45% | ||||||||
| AssetsNet | $ 794,579,635 | $ 794,579,635 | $ 794,579,635 | $ 794,579,635 | $ 794,579,635 | $ 794,579,635 | $ 794,579,635 | $ 794,579,635 | $ 794,579,635 |
| Holdings Count | Holding | 2,842 | 2,842 | 2,842 | 2,842 | 2,842 | 2,842 | 2,842 | 2,842 | 2,842 |
| Advisory Fees Paid, Amount | $ 295,752 | ||||||||
| InvestmentCompanyPortfolioTurnover | 15% | ||||||||
| Additional Fund Statistics [Text Block] | Key Portfolio Statistics Statistic Value Total Net Assets $794,579,635 # of Portfolio Holdings 2,842 Portfolio Turnover Rate 15% Total Advisory Fees Paid $295,752 | ||||||||
| Holdings [Text Block] | Top Sectors Sector % Value of Total Net Assets Consumer, Non-Cyclical 23.7% Financial 14.7% Utilities 13.5% Communications 12.5% Energy 9.3% Industrial 8.7% Technology 7.9% Consumer, Cyclical 4.7% Basic Materials 3.1% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets Anheuser-Busch Cos. LLC/Anheuser-Busch InBev Worldwide, Inc., 4.90%, due 02/01/46 0.4% CVS Health Corp., 5.05%, due 03/25/48 0.3% Pfizer Investment Enterprises Pte. Ltd., 5.30%, due 05/19/53 0.3% AbbVie, Inc., 5.35%, due 03/15/44 0.3% Shell International Finance BV, 6.38%, due 12/15/38 0.3% Warnermedia Holdings, Inc., 5.14%, due 03/15/52 0.3% AT&T, Inc., 3.55%, due 09/15/55 0.3% Wells Fargo & Co., 5.01%, due 04/04/51 0.2% Boeing Co., 5.81%, due 05/01/50 0.2% Goldman Sachs Group, Inc., 6.75%, due 10/01/37 0.2% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000099139 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR Portfolio Corporate Bond ETF | ||||||||
| Trading Symbol | SPBO | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR Portfolio Corporate Bond ETF (the "Portfolio") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Portfolio, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C938"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Portfolio costs for the last year? Portfolio Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR Portfolio Corporate Bond ETF $3 0.03% | ||||||||
| Expenses Paid, Amount | $ 3 | ||||||||
| Expense Ratio, Percent | 0.03% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Uncertainty around the future path of Federal Reserve (the “Fed”) policy as well as high interest rates were the primary drivers of Fund performance during the reporting period. Following record high inflation stemming from the 2020 pandemic, the Fed embarked on an aggressive hiking path that saw a 5.25% increase in interest rates, with the last 25bp rate hike occurring in July 2023. The Fed has been on pause ever since, waiting for the economy to fully absorb the effects from their policy tightening. By the end of the reporting period, the Fed still deemed inflation too high to start lowering interest rates and reiterated the importance of seeing more “good data”, with lower CPI and PCE readings being the most important indicators of a cooling economy. Fixed income markets were sensitive to data during the reporting period, and credit spreads increased to period highs in the fourth quarter as inflation remained stubborn. However, as soon as inflation readings eased, so too did credit spreads decline to period lows, resulting in modestly positive performance for the period. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C943"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | SPBO Bloomberg U.S. Aggregate Bond Index Bloomberg U.S. Corporate Bond Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $9,950 $9,975 $9,993 8/31/14 $10,231 $10,085 $10,123 9/30/14 $10,036 $10,017 $9,997 10/31/14 $10,121 $10,115 $10,082 11/30/14 $10,133 $10,187 $10,133 12/31/14 $10,193 $10,196 $10,136 1/31/15 $10,495 $10,410 $10,427 2/28/15 $10,378 $10,312 $10,326 3/31/15 $10,387 $10,360 $10,360 4/30/15 $10,311 $10,323 $10,309 5/31/15 $10,186 $10,298 $10,254 6/30/15 $10,014 $10,186 $10,079 7/31/15 $10,109 $10,257 $10,141 8/31/15 $10,003 $10,242 $10,078 9/30/15 $10,108 $10,311 $10,144 10/31/15 $10,157 $10,313 $10,167 11/30/15 $10,155 $10,286 $10,140 12/31/15 $10,036 $10,252 $10,078 1/31/16 $10,098 $10,393 $10,162 2/29/16 $10,164 $10,467 $10,214 3/31/16 $10,377 $10,564 $10,439 4/30/16 $10,494 $10,604 $10,562 5/31/16 $10,504 $10,607 $10,571 6/30/16 $10,747 $10,798 $10,792 7/31/16 $10,892 $10,866 $10,927 8/31/16 $10,903 $10,854 $10,941 9/30/16 $10,880 $10,847 $10,936 10/31/16 $10,814 $10,765 $10,879 11/30/16 $10,526 $10,510 $10,609 12/31/16 $10,544 $10,524 $10,673 1/31/17 $10,618 $10,546 $10,736 2/28/17 $10,733 $10,616 $10,846 3/31/17 $10,721 $10,611 $10,827 4/30/17 $10,813 $10,693 $10,936 5/31/17 $10,915 $10,775 $11,047 6/30/17 $10,934 $10,764 $11,064 7/31/17 $11,024 $10,810 $11,144 8/31/17 $11,097 $10,908 $11,240 9/30/17 $11,066 $10,855 $11,198 10/31/17 $11,086 $10,862 $11,250 11/30/17 $11,086 $10,848 $11,235 12/31/17 $11,137 $10,898 $11,318 1/31/18 $11,042 $10,772 $11,215 2/28/18 $10,902 $10,670 $11,073 3/31/18 $10,935 $10,738 $11,095 4/30/18 $10,819 $10,659 $11,010 5/31/18 $10,884 $10,734 $11,066 6/30/18 $10,844 $10,722 $11,006 7/31/18 $10,906 $10,724 $11,078 8/31/18 $10,934 $10,793 $11,132 9/30/18 $10,894 $10,724 $11,093 10/31/18 $10,748 $10,639 $10,931 11/30/18 $10,749 $10,702 $10,913 12/31/18 $10,925 $10,899 $11,073 1/31/19 $11,184 $11,015 $11,333 2/28/19 $11,162 $11,008 $11,358 3/31/19 $11,516 $11,220 $11,643 4/30/19 $11,565 $11,223 $11,706 5/31/19 $11,734 $11,422 $11,873 6/30/19 $12,015 $11,565 $12,164 7/31/19 $12,066 $11,591 $12,232 8/31/19 $12,469 $11,891 $12,617 9/30/19 $12,393 $11,828 $12,535 10/31/19 $12,422 $11,863 $12,611 11/30/19 $12,490 $11,857 $12,642 12/31/19 $12,532 $11,849 $12,683 1/31/20 $12,819 $12,077 $12,980 2/29/20 $12,945 $12,294 $13,154 3/31/20 $12,163 $12,222 $12,222 4/30/20 $12,708 $12,439 $12,863 5/31/20 $12,955 $12,497 $13,064 6/30/20 $13,220 $12,576 $13,320 7/31/20 $13,628 $12,764 $13,753 8/31/20 $13,425 $12,661 $13,563 9/30/20 $13,387 $12,654 $13,525 10/31/20 $13,334 $12,597 $13,500 11/30/20 $13,774 $12,721 $13,876 12/31/20 $13,816 $12,739 $13,937 1/31/21 $13,615 $12,647 $13,758 2/28/21 $13,362 $12,465 $13,521 3/31/21 $13,187 $12,309 $13,289 4/30/21 $13,329 $12,406 $13,436 5/31/21 $13,397 $12,447 $13,539 6/30/21 $13,642 $12,534 $13,760 7/31/21 $13,820 $12,674 $13,949 8/31/21 $13,783 $12,650 $13,906 9/30/21 $13,603 $12,541 $13,760 10/31/21 $13,665 $12,537 $13,794 11/30/21 $13,639 $12,574 $13,803 12/31/21 $13,628 $12,542 $13,791 1/31/22 $13,214 $12,272 $13,327 2/28/22 $12,963 $12,135 $13,061 3/31/22 $12,604 $11,798 $12,731 4/30/22 $11,905 $11,350 $12,035 5/31/22 $12,076 $11,423 $12,148 6/30/22 $11,708 $11,244 $11,807 7/31/22 $12,127 $11,519 $12,190 8/31/22 $11,703 $11,193 $11,832 9/30/22 $11,098 $10,710 $11,210 10/31/22 $11,002 $10,571 $11,094 11/30/22 $11,613 $10,960 $11,669 12/31/22 $11,496 $10,910 $11,618 1/31/23 $12,000 $11,246 $12,083 2/28/23 $11,601 $10,955 $11,699 3/31/23 $11,948 $11,234 $12,025 4/30/23 $12,034 $11,302 $12,117 5/31/23 $11,846 $11,179 $11,941 6/30/23 $11,932 $11,139 $11,990 7/31/23 $11,953 $11,131 $12,032 8/31/23 $11,861 $11,060 $11,938 9/30/23 $11,534 $10,779 $11,620 10/31/23 $11,319 $10,609 $11,402 11/30/23 $12,021 $11,089 $12,084 12/31/23 $12,518 $11,514 $12,607 1/31/24 $12,505 $11,482 $12,586 2/29/24 $12,325 $11,320 $12,397 3/31/24 $12,489 $11,424 $12,557 4/30/24 $12,173 $11,136 $12,238 5/31/24 $12,413 $11,324 $12,467 6/30/24 $12,476 $11,431 $12,546 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years SPBO 4.88% 0.80% 2.27% Bloomberg U.S. Aggregate Bond Index 2.63% (0.23%) 1.35% Bloomberg U.S. Corporate Bond Index 4.63% 0.62% 2.29% | ||||||||
| AssetsNet | $ 1,463,489,405 | $ 1,463,489,405 | $ 1,463,489,405 | $ 1,463,489,405 | $ 1,463,489,405 | $ 1,463,489,405 | $ 1,463,489,405 | $ 1,463,489,405 | $ 1,463,489,405 |
| Holdings Count | Holding | 5,044 | 5,044 | 5,044 | 5,044 | 5,044 | 5,044 | 5,044 | 5,044 | 5,044 |
| Advisory Fees Paid, Amount | $ 335,714 | ||||||||
| InvestmentCompanyPortfolioTurnover | 21% | ||||||||
| Additional Fund Statistics [Text Block] | Key Portfolio Statistics Statistic Value Total Net Assets $1,463,489,405 # of Portfolio Holdings 5,044 Portfolio Turnover Rate 21% Total Advisory Fees Paid $335,714 | ||||||||
| Holdings [Text Block] | Top Sectors Sector % Value of Total Net Assets Financial 32.4% Consumer, Non-Cyclical 17.6% Utilities 9.1% Communications 8.7% Industrial 7.5% Energy 6.9% Technology 6.8% Consumer, Cyclical 6.4% Basic Materials 2.5% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets JPMorgan Chase & Co., 5.72%, due 09/14/33 0.2% Bank of America Corp., 5.08%, due 01/20/27 0.2% JPMorgan Chase & Co., 1.04%, due 02/04/27 0.2% Wells Fargo & Co., 3.55%, due 09/29/25 0.2% General Motors Financial Co., Inc., 4.00%, due 10/06/26 0.2% Bank of America Corp., 2.50%, due 02/13/31 0.2% Bank of America Corp., 4.45%, due 03/03/26 0.1% Wells Fargo & Co., 3.20%, due 06/17/27 0.1% AbbVie, Inc., 2.95%, due 11/21/26 0.1% Amgen, Inc., 5.65%, due 03/02/53 0.1% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000066453 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR Portfolio Mortgage Backed Bond ETF | ||||||||
| Trading Symbol | SPMB | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR Portfolio Mortgage Backed Bond ETF (the "Portfolio") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Portfolio, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C962"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Portfolio costs for the last year? Portfolio Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR Portfolio Mortgage Backed Bond ETF $3 0.03% | ||||||||
| Expenses Paid, Amount | $ 3 | ||||||||
| Expense Ratio, Percent | 0.03% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Uncertainty around the future path of Federal Reserve (“Fed”) policy as well as high interest rates were the primary drivers of Fund performance during the reporting period. Following record high inflation stemming from the 2020 pandemic, the Fed embarked on an aggressive hiking path that saw a 5.25% increase in interest rates, with the last 25bp rate hike occurring in July 2023. The Fed has been on pause ever since, waiting for the economy to fully absorb the effects from their policy tightening. By the end of the reporting period, the Fed still deemed inflation too high to start lowering interest rates and reiterated the importance of seeing more “good data”, with lower CPI and PCE readings being the most important indicators of a cooling economy. Markets were sensitive to data during the reporting period, and mortgage spreads increased to period highs in the fourth quarter as inflation remained stubborn. However, as inflation readings eased, so too did spreads, which resulted in modestly positive returns for the period. However, mortgage rates are still elevated at 7.25% due to higher rates and a tight housing market. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C967"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | SPMB Bloomberg U.S. Aggregate Bond Index Bloomberg U.S. MBS Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $9,945 $9,975 $9,941 8/31/14 $10,036 $10,085 $10,034 9/30/14 $10,014 $10,017 $10,018 10/31/14 $10,137 $10,115 $10,115 11/30/14 $10,239 $10,187 $10,181 12/31/14 $10,183 $10,196 $10,197 1/31/15 $10,284 $10,410 $10,284 2/28/15 $10,297 $10,312 $10,267 3/31/15 $10,328 $10,360 $10,305 4/30/15 $10,343 $10,323 $10,309 5/31/15 $10,288 $10,298 $10,307 6/30/15 $10,204 $10,186 $10,228 7/31/15 $10,302 $10,257 $10,293 8/31/15 $10,317 $10,242 $10,301 9/30/15 $10,360 $10,311 $10,362 10/31/15 $10,368 $10,313 $10,369 11/30/15 $10,349 $10,286 $10,354 12/31/15 $10,345 $10,252 $10,351 1/31/16 $10,480 $10,393 $10,485 2/29/16 $10,536 $10,467 $10,525 3/31/16 $10,550 $10,564 $10,556 4/30/16 $10,562 $10,604 $10,573 5/31/16 $10,581 $10,607 $10,587 6/30/16 $10,634 $10,798 $10,673 7/31/16 $10,684 $10,866 $10,694 8/31/16 $10,679 $10,854 $10,707 9/30/16 $10,714 $10,847 $10,737 10/31/16 $10,677 $10,765 $10,709 11/30/16 $10,460 $10,510 $10,526 12/31/16 $10,472 $10,524 $10,526 1/31/17 $10,484 $10,546 $10,523 2/28/17 $10,525 $10,616 $10,573 3/31/17 $10,521 $10,611 $10,576 4/30/17 $10,570 $10,693 $10,645 5/31/17 $10,643 $10,775 $10,711 6/30/17 $10,590 $10,764 $10,668 7/31/17 $10,641 $10,810 $10,716 8/31/17 $10,706 $10,908 $10,794 9/30/17 $10,691 $10,855 $10,771 10/31/17 $10,674 $10,862 $10,767 11/30/17 $10,682 $10,848 $10,752 12/31/17 $10,690 $10,898 $10,788 1/31/18 $10,567 $10,772 $10,662 2/28/18 $10,497 $10,670 $10,591 3/31/18 $10,566 $10,738 $10,659 4/30/18 $10,484 $10,659 $10,606 5/31/18 $10,564 $10,734 $10,680 6/30/18 $10,556 $10,721 $10,685 7/31/18 $10,570 $10,724 $10,674 8/31/18 $10,620 $10,793 $10,739 9/30/18 $10,575 $10,723 $10,673 10/31/18 $10,520 $10,639 $10,605 11/30/18 $10,612 $10,702 $10,701 12/31/18 $10,792 $10,899 $10,895 1/31/19 $10,874 $11,014 $10,981 2/28/19 $10,877 $11,008 $10,971 3/31/19 $11,030 $11,219 $11,131 4/30/19 $11,029 $11,222 $11,125 5/31/19 $11,149 $11,422 $11,268 6/30/19 $11,262 $11,565 $11,349 7/31/19 $11,270 $11,591 $11,395 8/31/19 $11,391 $11,891 $11,497 9/30/19 $11,407 $11,828 $11,505 10/31/19 $11,436 $11,863 $11,546 11/30/19 $11,442 $11,857 $11,555 12/31/19 $11,463 $11,849 $11,587 1/31/20 $11,555 $12,077 $11,668 2/29/20 $11,669 $12,294 $11,789 3/31/20 $11,768 $12,222 $11,914 4/30/20 $11,906 $12,439 $11,989 5/31/20 $11,907 $12,497 $12,004 6/30/20 $11,885 $12,576 $11,993 7/31/20 $11,923 $12,764 $12,014 8/31/20 $11,923 $12,661 $12,019 9/30/20 $11,916 $12,654 $12,006 10/31/20 $11,904 $12,597 $12,001 11/30/20 $11,912 $12,721 $12,010 12/31/20 $11,934 $12,739 $12,036 1/31/21 $11,948 $12,647 $12,045 2/28/21 $11,843 $12,465 $11,965 3/31/21 $11,765 $12,309 $11,903 4/30/21 $11,843 $12,406 $11,969 5/31/21 $11,805 $12,447 $11,948 6/30/21 $11,807 $12,534 $11,943 7/31/21 $11,871 $12,674 $12,018 8/31/21 $11,858 $12,650 $11,998 9/30/21 $11,819 $12,541 $11,955 10/31/21 $11,777 $12,537 $11,932 11/30/21 $11,771 $12,574 $11,921 12/31/21 $11,760 $12,542 $11,910 1/31/22 $11,579 $12,272 $11,734 2/28/22 $11,459 $12,135 $11,620 3/31/22 $11,149 $11,798 $11,317 4/30/22 $10,759 $11,350 $10,919 5/31/22 $10,870 $11,423 $11,038 6/30/22 $10,718 $11,244 $10,862 7/31/22 $11,054 $11,519 $11,211 8/31/22 $10,682 $11,193 $10,827 9/30/22 $10,131 $10,710 $10,281 10/31/22 $10,005 $10,571 $10,134 11/30/22 $10,420 $10,960 $10,547 12/31/22 $10,351 $10,910 $10,501 1/31/23 $10,711 $11,246 $10,847 2/28/23 $10,415 $10,955 $10,560 3/31/23 $10,623 $11,234 $10,766 4/30/23 $10,681 $11,302 $10,822 5/31/23 $10,601 $11,179 $10,742 6/30/23 $10,571 $11,139 $10,697 7/31/23 $10,549 $11,131 $10,689 8/31/23 $10,459 $11,060 $10,601 9/30/23 $10,131 $10,779 $10,263 10/31/23 $9,909 $10,609 $10,051 11/30/23 $10,433 $11,089 $10,575 12/31/23 $10,875 $11,514 $11,031 1/31/24 $10,846 $11,482 $10,980 2/29/24 $10,650 $11,320 $10,801 3/31/24 $10,761 $11,424 $10,915 4/30/24 $10,442 $11,136 $10,585 5/31/24 $10,642 $11,324 $10,797 6/30/24 $10,781 $11,431 $10,922 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years SPMB 2.07% (0.85%) 0.73% Bloomberg U.S. Aggregate Bond Index 2.63% (0.23%) 1.35% Bloomberg U.S. MBS Index 2.12% (0.76%) 0.89% | ||||||||
| AssetsNet | $ 5,181,726,321 | $ 5,181,726,321 | $ 5,181,726,321 | $ 5,181,726,321 | $ 5,181,726,321 | $ 5,181,726,321 | $ 5,181,726,321 | $ 5,181,726,321 | $ 5,181,726,321 |
| Holdings Count | Holding | 2,429 | 2,429 | 2,429 | 2,429 | 2,429 | 2,429 | 2,429 | 2,429 | 2,429 |
| Advisory Fees Paid, Amount | $ 1,882,747 | ||||||||
| InvestmentCompanyPortfolioTurnover | 10% | ||||||||
| Additional Fund Statistics [Text Block] | Key Portfolio Statistics Statistic Value Total Net Assets $5,181,726,321 # of Portfolio Holdings 2,429 Portfolio Turnover Rate 10% Total Advisory Fees Paid $1,882,747 | ||||||||
| Holdings [Text Block] | Security Type Asset % Value of Total Net Assets U.S. Government Agency Obligations 97.5% Bonds and Notes 1.6% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets Federal National Mortgage Association, 2.00%, due 02/01/52 1.5% Federal National Mortgage Association, 2.00%, due 11/01/51 1.3% Federal National Mortgage Association, 2.00%, due 07/01/51 1.1% Federal National Mortgage Association, 2.50%, due 01/01/52 1.0% Federal National Mortgage Association, 2.00%, due 01/01/51 1.0% Federal National Mortgage Association, 2.00%, due 02/01/51 0.8% Federal National Mortgage Association, 4.50%, due 08/01/52 0.8% Federal Home Loan Mortgage Corp., 2.00%, due 11/01/51 0.8% Federal Home Loan Mortgage Corp., 2.50%, due 09/01/51 0.8% Federal National Mortgage Association, 2.00%, due 03/01/51 0.8% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000047971 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR Portfolio Aggregate Bond ETF | ||||||||
| Trading Symbol | SPAB | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR Portfolio Aggregate Bond ETF (the "Portfolio") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Portfolio, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C986"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Portfolio costs for the last year? Portfolio Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR Portfolio Aggregate Bond ETF $3 0.03% | ||||||||
| Expenses Paid, Amount | $ 3 | ||||||||
| Expense Ratio, Percent | 0.03% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Uncertainty around the future path of Federal Reserve (“Fed”) policy as well as high interest rates were the primary drivers of Fund performance during the reporting period. Following record high inflation stemming from the 2020 pandemic, the Fed embarked on an aggressive hiking path that saw a 5.25% increase in interest rates, with the last 25bp rate hike occurring in July 2023. The Fed has been on pause ever since, waiting for the economy to fully absorb the effects from their policy tightening. By the end of the reporting period, the Fed still deemed inflation too high to start lowering interest rates and reiterated the importance of seeing more “good data”, with lower CPI and PCE readings being the most important indicators of a cooling economy. Fixed income markets were sensitive to data during the reporting period, with Treasury yields and credit spreads both increasing to period highs in the fourth quarter as inflation remained stubborn. However, as soon as inflation readings eased, so too did yields and spreads, resulting in modestly positive performance for the period. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C991"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | SPAB Bloomberg Global Aggregate Bond Index Bloomberg U.S. Aggregate Bond Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $9,956 $9,910 $9,975 8/31/14 $10,064 $9,964 $10,085 9/30/14 $10,021 $9,686 $10,017 10/31/14 $10,101 $9,687 $10,115 11/30/14 $10,183 $9,652 $10,187 12/31/14 $10,212 $9,586 $10,196 1/31/15 $10,412 $9,570 $10,410 2/28/15 $10,321 $9,493 $10,312 3/31/15 $10,365 $9,401 $10,360 4/30/15 $10,323 $9,501 $10,323 5/31/15 $10,272 $9,332 $10,298 6/30/15 $10,158 $9,291 $10,186 7/31/15 $10,250 $9,312 $10,257 8/31/15 $10,210 $9,322 $10,242 9/30/15 $10,297 $9,370 $10,311 10/31/15 $10,318 $9,390 $10,313 11/30/15 $10,262 $9,234 $10,286 12/31/15 $10,244 $9,283 $10,252 1/31/16 $10,364 $9,364 $10,393 2/29/16 $10,452 $9,572 $10,467 3/31/16 $10,563 $9,831 $10,564 4/30/16 $10,593 $9,962 $10,604 5/31/16 $10,597 $9,828 $10,607 6/30/16 $10,785 $9,696 $10,798 7/31/16 $10,856 $9,979 $10,866 8/31/16 $10,824 $10,055 $10,854 9/30/16 $10,829 $10,006 $10,847 10/31/16 $10,728 $10,061 $10,765 11/30/16 $10,467 $9,782 $10,510 12/31/16 $10,492 $9,393 $10,524 1/31/17 $10,514 $9,350 $10,546 2/28/17 $10,575 $9,455 $10,616 3/31/17 $10,577 $9,500 $10,611 4/30/17 $10,667 $9,515 $10,693 5/31/17 $10,742 $9,622 $10,775 6/30/17 $10,738 $9,771 $10,764 7/31/17 $10,783 $9,762 $10,810 8/31/17 $10,882 $9,926 $10,908 9/30/17 $10,825 $10,025 $10,855 10/31/17 $10,831 $9,934 $10,862 11/30/17 $10,831 $9,897 $10,848 12/31/17 $10,879 $10,007 $10,898 1/31/18 $10,739 $10,041 $10,772 2/28/18 $10,631 $10,161 $10,670 3/31/18 $10,701 $10,071 $10,738 4/30/18 $10,612 $10,178 $10,659 5/31/18 $10,683 $10,015 $10,734 6/30/18 $10,679 $9,939 $10,722 7/31/18 $10,688 $9,895 $10,724 8/31/18 $10,754 $9,878 $10,793 9/30/18 $10,687 $9,889 $10,724 10/31/18 $10,602 $9,803 $10,639 11/30/18 $10,665 $9,694 $10,702 12/31/18 $10,851 $9,724 $10,899 1/31/19 $10,966 $9,921 $11,015 2/28/19 $10,959 $10,072 $11,008 3/31/19 $11,183 $10,014 $11,220 4/30/19 $11,185 $10,139 $11,223 5/31/19 $11,379 $10,109 $11,422 6/30/19 $11,519 $10,246 $11,565 7/31/19 $11,543 $10,473 $11,591 8/31/19 $11,848 $10,444 $11,891 9/30/19 $11,789 $10,657 $11,828 10/31/19 $11,804 $10,548 $11,863 11/30/19 $11,810 $10,618 $11,857 12/31/19 $11,799 $10,538 $11,849 1/31/20 $12,034 $10,599 $12,077 2/29/20 $12,229 $10,735 $12,294 3/31/20 $12,167 $10,807 $12,222 4/30/20 $12,358 $10,565 $12,439 5/31/20 $12,437 $10,772 $12,497 6/30/20 $12,525 $10,819 $12,576 7/31/20 $12,703 $10,915 $12,764 8/31/20 $12,594 $11,264 $12,661 9/30/20 $12,580 $11,246 $12,654 10/31/20 $12,509 $11,206 $12,597 11/30/20 $12,657 $11,217 $12,721 12/31/20 $12,677 $11,421 $12,739 1/31/21 $12,583 $11,574 $12,647 2/28/21 $12,391 $11,472 $12,465 3/31/21 $12,242 $11,275 $12,309 4/30/21 $12,337 $11,058 $12,406 5/31/21 $12,359 $11,197 $12,447 6/30/21 $12,464 $11,303 $12,534 7/31/21 $12,598 $11,203 $12,674 8/31/21 $12,578 $11,352 $12,650 9/30/21 $12,457 $11,305 $12,541 10/31/21 $12,461 $11,104 $12,537 11/30/21 $12,494 $11,077 $12,574 12/31/21 $12,448 $11,045 $12,542 1/31/22 $12,196 $11,029 $12,272 2/28/22 $12,064 $10,803 $12,135 3/31/22 $11,722 $10,675 $11,798 4/30/22 $11,272 $10,350 $11,350 5/31/22 $11,362 $9,783 $11,423 6/30/22 $11,177 $9,809 $11,244 7/31/22 $11,462 $9,495 $11,519 8/31/22 $11,120 $9,696 $11,193 9/30/22 $10,647 $9,314 $10,710 10/31/22 $10,517 $8,835 $10,571 11/30/22 $10,907 $8,775 $10,960 12/31/22 $10,822 $9,187 $10,910 1/31/23 $11,184 $9,237 $11,246 2/28/23 $10,880 $9,540 $10,955 3/31/23 $11,165 $9,223 $11,234 4/30/23 $11,227 $9,515 $11,302 5/31/23 $11,105 $9,557 $11,179 6/30/23 $11,074 $9,370 $11,139 7/31/23 $11,061 $9,369 $11,131 8/31/23 $10,992 $9,434 $11,060 9/30/23 $10,712 $9,305 $10,779 10/31/23 $10,542 $9,033 $10,609 11/30/23 $11,034 $8,925 $11,089 12/31/23 $11,430 $9,375 $11,514 1/31/24 $11,407 $9,765 $11,482 2/29/24 $11,245 $9,630 $11,320 3/31/24 $11,343 $9,509 $11,424 4/30/24 $11,059 $9,562 $11,136 5/31/24 $11,252 $9,320 $11,324 6/30/24 $11,352 $9,456 $11,431 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years SPAB 2.62% (0.29%) 1.29% Bloomberg Global Aggregate Bond Index 0.93% (2.02%) (0.42%) Bloomberg U.S. Aggregate Bond Index 2.63% (0.23%) 1.35% | ||||||||
| AssetsNet | $ 7,846,101,071 | $ 7,846,101,071 | $ 7,846,101,071 | $ 7,846,101,071 | $ 7,846,101,071 | $ 7,846,101,071 | $ 7,846,101,071 | $ 7,846,101,071 | $ 7,846,101,071 |
| Holdings Count | Holding | 7,395 | 7,395 | 7,395 | 7,395 | 7,395 | 7,395 | 7,395 | 7,395 | 7,395 |
| Advisory Fees Paid, Amount | $ 2,199,574 | ||||||||
| InvestmentCompanyPortfolioTurnover | 13% | ||||||||
| Additional Fund Statistics [Text Block] | Key Portfolio Statistics Statistic Value Total Net Assets $7,846,101,071 # of Portfolio Holdings 7,395 Portfolio Turnover Rate 13% Total Advisory Fees Paid $2,199,574 | ||||||||
| Holdings [Text Block] | Security Type Asset % Value of Total Net Assets U.S. Treasury Obligations 37.8% U.S. Government Agency Obligations 26.7% Corporate Bonds & Notes 21.5% Bonds and Notes 8.3% Foreign Government Obligations 2.6% Short-Term Investments 2.2% Mortgage-Backed Securities 0.8% Municipal Bonds & Notes 0.6% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets U.S. Treasury Notes, 4.50%, due 04/15/27 0.8% U.S. Treasury Notes, 4.63%, due 05/31/31 0.7% U.S. Treasury Notes, 4.25%, due 06/30/29 0.6% U.S. Treasury Notes, 4.38%, due 11/30/28 0.6% U.S. Treasury Notes, 4.00%, due 01/31/31 0.5% U.S. Treasury Notes, 3.63%, due 03/31/28 0.5% U.S. Treasury Bonds, 3.88%, due 02/15/43 0.4% U.S. Treasury Bonds, 4.63%, due 02/15/40 0.4% U.S. Treasury Notes, 4.63%, due 02/28/26 0.4% U.S. Treasury Bonds, 4.50%, due 02/15/44 0.4% | ||||||||
| Material Fund Change [Text Block] | |||||||||
| C000113018 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR Portfolio High Yield Bond ETF | ||||||||
| Trading Symbol | SPHY | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR Portfolio High Yield Bond ETF (the "Portfolio") for the year ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Portfolio, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-C1011"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Portfolio costs for the last year? Portfolio Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR Portfolio High Yield Bond ETF $5 0.05% Effective August 1, 2023 the management fee was reduced from 0.10% to 0.05%. | ||||||||
| Expenses Paid, Amount | $ 5 | ||||||||
| Expense Ratio, Percent | 0.05% | ||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? Uncertainty around the future path of Federal Reserve (the “Fed”) policy as well as high interest rates were the primary drivers of Fund performance during the reporting period. Following record high inflation stemming from the 2020 pandemic, the Fed embarked on an aggressive hiking path that saw a 5.25% increase in interest rates, with the last 25bp rate hike occurring in July 2023. The Fed has been on pause ever since, waiting for the economy to fully absorb the effects from their policy tightening. By the end of the reporting period, the Fed still deemed inflation too high to start lowering interest rates and reiterated the importance of seeing more “good data”, with lower CPI and PCE readings being the most important indicators of a cooling economy. Markets were sensitive to data during the reporting period, and high yield spreads increased to period highs in the fourth quarter as inflation remained stubborn. However, as inflation readings eased, so too did spreads which, in conjunction with a more risk-on market mentality, resulted in positive performance for the fund. | ||||||||
| Performance Past Does Not Indicate Future [Text] | <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p>" id="sjs-C1016"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or on the redemption or sale of Fund shares. Updated performance information is available by calling 1-866-787-2257 or visiting our website at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 700; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>.</span></p> | ||||||||
| Line Graph [Table Text Block] | SPHY Bloomberg U.S. Aggregate Bond Index ICE BofA US High Yield Index 6/30/14 $10,000 $10,000 $10,000 7/31/14 $9,905 $9,975 $9,930 8/31/14 $10,118 $10,085 $10,093 9/30/14 $9,909 $10,017 $9,929 10/31/14 $10,084 $10,115 $10,063 11/30/14 $9,987 $10,187 $10,065 12/31/14 $10,025 $10,196 $10,021 1/31/15 $10,194 $10,410 $10,217 2/28/15 $10,253 $10,312 $10,280 3/31/15 $10,234 $10,360 $10,270 4/30/15 $10,195 $10,323 $10,281 5/31/15 $10,185 $10,298 $10,267 6/30/15 $10,004 $10,186 $10,099 7/31/15 $10,010 $10,257 $10,119 8/31/15 $9,939 $10,242 $10,011 9/30/15 $9,843 $10,311 $9,931 10/31/15 $10,028 $10,313 $10,122 11/30/15 $9,904 $10,286 $10,026 12/31/15 $9,662 $10,252 $9,867 1/31/16 $9,654 $10,393 $9,824 2/29/16 $9,750 $10,467 $9,921 3/31/16 $10,105 $10,564 $10,253 4/30/16 $10,363 $10,604 $10,494 5/31/16 $10,363 $10,607 $10,501 6/30/16 $10,547 $10,798 $10,669 7/31/16 $10,724 $10,866 $10,879 8/31/16 $10,893 $10,854 $10,983 9/30/16 $10,932 $10,847 $10,995 10/31/16 $10,892 $10,765 $10,970 11/30/16 $10,624 $10,510 $10,785 12/31/16 $10,797 $10,524 $10,903 1/31/17 $10,968 $10,546 $10,987 2/28/17 $11,020 $10,616 $11,107 3/31/17 $11,075 $10,611 $11,091 4/30/17 $11,167 $10,693 $11,221 5/31/17 $11,302 $10,775 $11,337 6/30/17 $11,321 $10,764 $11,373 7/31/17 $11,371 $10,810 $11,474 8/31/17 $11,474 $10,908 $11,527 9/30/17 $11,516 $10,855 $11,565 10/31/17 $11,534 $10,862 $11,610 11/30/17 $11,490 $10,848 $11,594 12/31/17 $11,576 $10,898 $11,651 1/31/18 $11,510 $10,772 $11,617 2/28/18 $11,367 $10,670 $11,467 3/31/18 $11,304 $10,738 $11,445 4/30/18 $11,261 $10,659 $11,411 5/31/18 $11,261 $10,734 $11,414 6/30/18 $11,222 $10,722 $11,379 7/31/18 $11,361 $10,724 $11,494 8/31/18 $11,432 $10,793 $11,573 9/30/18 $11,439 $10,724 $11,579 10/31/18 $11,254 $10,639 $11,418 11/30/18 $11,226 $10,702 $11,381 12/31/18 $11,197 $10,899 $11,372 1/31/19 $11,601 $11,015 $11,736 2/28/19 $11,678 $11,008 $11,856 3/31/19 $11,916 $11,220 $12,084 4/30/19 $12,046 $11,223 $12,254 5/31/19 $11,850 $11,422 $12,098 6/30/19 $12,149 $11,565 $12,394 7/31/19 $12,225 $11,591 $12,458 8/31/19 $12,251 $11,891 $12,506 9/30/19 $12,348 $11,828 $12,546 10/31/19 $12,345 $11,863 $12,575 11/30/19 $12,408 $11,857 $12,610 12/31/19 $12,691 $11,849 $12,873 1/31/20 $12,662 $12,077 $12,874 2/29/20 $12,500 $12,294 $12,674 3/31/20 $10,985 $12,222 $11,184 4/30/20 $11,556 $12,439 $11,609 5/31/20 $12,023 $12,497 $12,140 6/30/20 $12,139 $12,576 $12,258 7/31/20 $12,695 $12,764 $12,844 8/31/20 $12,789 $12,661 $12,970 9/30/20 $12,663 $12,654 $12,835 10/31/20 $12,775 $12,597 $12,895 11/30/20 $13,250 $12,721 $13,411 12/31/20 $13,542 $12,739 $13,667 1/31/21 $13,548 $12,647 $13,719 2/28/21 $13,591 $12,465 $13,767 3/31/21 $13,703 $12,309 $13,791 4/30/21 $13,831 $12,406 $13,942 5/31/21 $13,855 $12,447 $13,982 6/30/21 $14,064 $12,534 $14,173 7/31/21 $14,103 $12,674 $14,224 8/31/21 $14,176 $12,650 $14,301 9/30/21 $14,181 $12,541 $14,306 10/31/21 $14,151 $12,537 $14,281 11/30/21 $13,999 $12,574 $14,134 12/31/21 $14,305 $12,542 $14,400 1/31/22 $13,931 $12,272 $14,004 2/28/22 $13,803 $12,135 $13,878 3/31/22 $13,645 $11,798 $13,750 4/30/22 $13,098 $11,350 $13,250 5/31/22 $13,257 $11,423 $13,283 6/30/22 $12,364 $11,244 $12,379 7/31/22 $13,118 $11,519 $13,125 8/31/22 $12,681 $11,193 $12,810 9/30/22 $12,188 $10,710 $12,295 10/31/22 $12,572 $10,571 $12,645 11/30/22 $12,976 $10,960 $12,882 12/31/22 $12,787 $10,910 $12,785 1/31/23 $13,262 $11,246 $13,285 2/28/23 $13,055 $10,955 $13,113 3/31/23 $13,300 $11,234 $13,260 4/30/23 $13,354 $11,302 $13,388 5/31/23 $13,222 $11,179 $13,261 6/30/23 $13,473 $11,139 $13,477 7/31/23 $13,650 $11,131 $13,669 8/31/23 $13,686 $11,060 $13,708 9/30/23 $13,466 $10,779 $13,548 10/31/23 $13,339 $10,609 $13,381 11/30/23 $13,957 $11,089 $13,989 12/31/23 $14,425 $11,514 $14,505 1/31/24 $14,474 $11,482 $14,508 2/29/24 $14,512 $11,320 $14,551 3/31/24 $14,678 $11,424 $14,724 4/30/24 $14,511 $11,136 $14,577 5/31/24 $14,740 $11,324 $14,742 6/30/24 $14,816 $11,431 $14,885 | ||||||||
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years SPHY 10.47% 4.07% 4.04% Bloomberg U.S. Aggregate Bond Index 2.63% (0.23%) 1.35% ICE BofA US High Yield Index 10.45% 3.73% 4.06% | ||||||||
| AssetsNet | $ 4,675,487,746 | $ 4,675,487,746 | $ 4,675,487,746 | $ 4,675,487,746 | $ 4,675,487,746 | $ 4,675,487,746 | $ 4,675,487,746 | $ 4,675,487,746 | $ 4,675,487,746 |
| Holdings Count | Holding | 1,920 | 1,920 | 1,920 | 1,920 | 1,920 | 1,920 | 1,920 | 1,920 | 1,920 |
| Advisory Fees Paid, Amount | $ 1,627,211 | ||||||||
| InvestmentCompanyPortfolioTurnover | 32% | ||||||||
| Additional Fund Statistics [Text Block] | Key Portfolio Statistics Statistic Value Total Net Assets $4,675,487,746 # of Portfolio Holdings 1,920 Portfolio Turnover Rate 32% Total Advisory Fees Paid $1,627,211 | ||||||||
| Holdings [Text Block] | Top Ten Sectors Sector % Value of Total Net Assets Consumer, Cyclical 20.1% Consumer, Non-Cyclical 14.8% Communications 14.0% Financial 13.0% Energy 12.5% Industrial 10.5% Basic Materials 5.2% Technology 5.1% Utilities 2.8% Diversified 0.2% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets Cloud Software Group, Inc., 6.50%, due 03/31/29 0.3% Medline Borrower LP, 3.88%, due 04/01/29 0.3% Cloud Software Group, Inc., 9.00%, due 09/30/29 0.3% Venture Global LNG, Inc., 9.50%, due 02/01/29 0.3% CCO Holdings LLC/CCO Holdings Capital Corp., 5.13%, due 05/01/27 0.3% HUB International Ltd., 7.25%, due 06/15/30 0.3% Carnival Corp., 5.75%, due 03/01/27 0.2% Directv Financing LLC/Directv Financing Co.-Obligor, Inc., 5.88%, due 08/15/27 0.2% DISH Network Corp., 11.75%, due 11/15/27 0.2% American Airlines, Inc./AAdvantage Loyalty IP Ltd., 5.75%, due 04/20/29 0.2% | ||||||||
| Material Fund Change [Text Block] | Material Fund Changes Effective August 1, 2023 the management fee was reduced from 0.10% to 0.05%. | ||||||||
| C000249829 | |||||||||
| Shareholder Report [Line Items] | |||||||||
| Fund Name | SPDR Portfolio Treasury ETF | ||||||||
| Trading Symbol | SPTB | ||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the SPDR Portfolio Treasury ETF (the "Portfolio") for the period ended June 30, 2024. | ||||||||
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report | ||||||||
| Additional Information [Text Block] | You can find additional information about the Portfolio, including the Prospectus, Statement of Additional Information, financial statements and other information at www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs | ||||||||
| Additional Information Phone Number | 1-866-787-2257 | ||||||||
| Additional Information Website | www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span>" id="sjs-B1035"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.ssga.com/us/en/institutional/fund-finder?tab=documents&type=etfs</span> | ||||||||
| Expenses [Text Block] | What were the Portfolio costs for the last year? Portfolio Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment SPDR Portfolio Treasury ETF $0 0.03% The dollar amounts above reflect expenses paid since the commencement of operations on May 21, 2024. Expenses for the full reporting period would be higher. Performance information is not provided since the Fund has less than six months of operations. | ||||||||
| Expenses Paid, Amount | $ 0 | ||||||||
| Expense Ratio, Percent | 0.03% | ||||||||
| AssetsNet | $ 24,182,493 | $ 24,182,493 | $ 24,182,493 | $ 24,182,493 | $ 24,182,493 | $ 24,182,493 | $ 24,182,493 | $ 24,182,493 | $ 24,182,493 |
| Holdings Count | Holding | 271 | 271 | 271 | 271 | 271 | 271 | 271 | 271 | 271 |
| Advisory Fees Paid, Amount | $ 812 | ||||||||
| InvestmentCompanyPortfolioTurnover | 2% | ||||||||
| Additional Fund Statistics [Text Block] | Key Portfolio Statistics Statistic Value Total Net Assets $24,182,493 # of Portfolio Holdings 271 Portfolio Turnover Rate 2% Total Advisory Fees Paid $812 | ||||||||
| Holdings [Text Block] | Maturity Weightings Maturity Duration % Value of Total Net Assets 1 to 2 Years 19.0% 2 to 3 Years 14.2% 3 to 5 Years 23.6% 5 to 10 Years 23.3% 10 to 20 Years 8.2% 20 to 30 Years 11.4% | ||||||||
| Largest Holdings [Text Block] | Top Ten Holdings Holdings % Value of Total Net Assets U.S. Treasury Notes, 4.00%, due 02/15/34 1.0% U.S. Treasury Notes, 4.50%, due 11/15/33 1.0% U.S. Treasury Notes, 3.88%, due 08/15/33 0.9% U.S. Treasury Notes, 4.13%, due 11/15/32 0.8% U.S. Treasury Notes, 3.50%, due 02/15/33 0.8% U.S. Treasury Notes, 3.38%, due 05/15/33 0.8% U.S. Treasury Notes, 1.25%, due 08/15/31 0.8% U.S. Treasury Notes, 2.88%, due 05/15/32 0.8% U.S. Treasury Notes, 2.75%, due 08/15/32 0.8% U.S. Treasury Notes, 1.38%, due 11/15/31 0.8% | ||||||||
| Material Fund Change [Text Block] |
| Shareholder Report, Line Graph (Details) - USD ($) | 12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Jun. 30, 2024 | May 31, 2024 | Apr. 30, 2024 | Mar. 31, 2024 | Feb. 29, 2024 | Jan. 31, 2024 | Dec. 31, 2023 | Nov. 30, 2023 | Oct. 31, 2023 | Sep. 30, 2023 | Aug. 31, 2023 | Jul. 31, 2023 | Jun. 30, 2023 | May 31, 2023 | Apr. 30, 2023 | Mar. 31, 2023 | Feb. 28, 2023 | Jan. 31, 2023 | Dec. 31, 2022 | Nov. 30, 2022 | Oct. 31, 2022 | Sep. 30, 2022 | Aug. 31, 2022 | Jul. 31, 2022 | Jun. 30, 2022 | May 31, 2022 | May 11, 2022 | Apr. 30, 2022 | Mar. 31, 2022 | Feb. 28, 2022 | Jan. 31, 2022 | Dec. 31, 2021 | Nov. 30, 2021 | Oct. 31, 2021 | Sep. 30, 2021 | Aug. 31, 2021 | Jul. 31, 2021 | Jun. 30, 2021 | May 31, 2021 | Apr. 30, 2021 | Apr. 06, 2021 | Mar. 31, 2021 | Feb. 28, 2021 | Jan. 31, 2021 | Dec. 31, 2020 | Nov. 30, 2020 | Oct. 31, 2020 | Sep. 30, 2020 | Sep. 23, 2020 | Aug. 31, 2020 | Jul. 31, 2020 | Jun. 30, 2020 | May 31, 2020 | Apr. 30, 2020 | Mar. 31, 2020 | Feb. 29, 2020 | Jan. 31, 2020 | Dec. 31, 2019 | Nov. 30, 2019 | Oct. 31, 2019 | Sep. 30, 2019 | Aug. 31, 2019 | Jul. 31, 2019 | Jun. 30, 2019 | May 31, 2019 | Apr. 30, 2019 | Mar. 31, 2019 | Feb. 28, 2019 | Jan. 31, 2019 | Dec. 31, 2018 | Nov. 30, 2018 | Oct. 31, 2018 | Sep. 30, 2018 | Aug. 31, 2018 | Jul. 31, 2018 | Jun. 30, 2018 | May 31, 2018 | Apr. 30, 2018 | Mar. 31, 2018 | Feb. 28, 2018 | Jan. 31, 2018 | Dec. 31, 2017 | Nov. 30, 2017 | Oct. 31, 2017 | Sep. 30, 2017 | Aug. 31, 2017 | Jul. 31, 2017 | Jun. 30, 2017 | May 31, 2017 | Apr. 30, 2017 | Mar. 31, 2017 | Feb. 28, 2017 | Jan. 31, 2017 | Dec. 31, 2016 | Nov. 30, 2016 | Oct. 31, 2016 | Sep. 30, 2016 | Aug. 31, 2016 | Jul. 31, 2016 | Jun. 30, 2016 | May 31, 2016 | Apr. 30, 2016 | Mar. 31, 2016 | Mar. 06, 2016 | Feb. 29, 2016 | Jan. 31, 2016 | Jan. 12, 2016 | Dec. 31, 2015 | Nov. 30, 2015 | Nov. 29, 2015 | Oct. 31, 2015 | Sep. 30, 2015 | Aug. 31, 2015 | Jul. 31, 2015 | Jun. 30, 2015 | May 31, 2015 | Apr. 30, 2015 | Apr. 14, 2015 | Mar. 31, 2015 | Feb. 28, 2015 | Jan. 31, 2015 | Dec. 31, 2014 | Nov. 30, 2014 | Oct. 31, 2014 | Sep. 30, 2014 | Aug. 31, 2014 | Jul. 31, 2014 | Jun. 30, 2014 | |
| C000162693 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | SPYX | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 30,581 | $ 29,504 | $ 28,053 | $ 29,282 | $ 28,406 | $ 26,987 | $ 26,546 | $ 25,365 | $ 23,171 | $ 23,620 | $ 24,865 | $ 25,305 | $ 24,519 | $ 23,010 | $ 22,818 | $ 22,493 | $ 21,671 | $ 22,176 | $ 20,838 | $ 22,131 | $ 20,930 | $ 19,485 | $ 21,451 | $ 22,422 | $ 20,563 | $ 22,330 | $ 22,415 | $ 24,608 | $ 23,766 | $ 24,563 | $ 26,059 | $ 24,913 | $ 25,074 | $ 23,455 | $ 24,700 | $ 23,946 | $ 23,371 | $ 22,857 | $ 22,732 | $ 21,549 | $ 20,607 | $ 20,068 | $ 20,348 | $ 19,618 | $ 17,733 | $ 18,188 | $ 18,875 | $ 17,586 | $ 16,611 | $ 16,279 | $ 15,519 | $ 13,825 | $ 15,685 | $ 17,043 | $ 17,001 | $ 16,537 | $ 15,947 | $ 15,578 | $ 15,286 | $ 15,511 | $ 15,280 | $ 14,290 | $ 15,229 | $ 14,593 | $ 14,353 | $ 13,905 | $ 12,889 | $ 14,153 | $ 13,892 | $ 14,892 | $ 14,815 | $ 14,306 | $ 13,763 | $ 13,714 | $ 13,399 | $ 13,402 | $ 13,763 | $ 14,264 | $ 13,475 | $ 13,328 | $ 12,937 | $ 12,618 | $ 12,416 | $ 12,357 | $ 12,111 | $ 12,026 | $ 11,865 | $ 11,711 | $ 11,678 | $ 11,196 | $ 10,957 | $ 10,750 | $ 10,388 | $ 10,563 | $ 10,578 | $ 10,564 | $ 10,149 | $ 10,147 | $ 9,958 | $ 9,970 | $ 9,345 | $ 9,361 | $ 9,868 | $ 10,000 | $ 10,000 | |||||||||||||||||||||||
| C000019028 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | DGT | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 22,931 | 23,125 | 22,098 | 22,689 | 21,818 | 21,087 | 20,988 | 20,083 | 18,594 | 19,105 | 19,790 | 20,404 | 19,647 | 18,301 | 18,940 | 18,539 | 18,278 | 18,798 | 17,346 | 17,795 | 16,076 | 14,762 | 16,407 | 16,921 | 16,296 | 18,065 | 17,450 | 18,722 | 18,480 | 19,071 | 18,887 | 17,818 | 18,612 | 17,943 | 18,395 | 18,041 | 18,117 | 18,380 | 17,646 | 17,154 | 16,461 | 15,438 | 15,526 | 14,911 | 12,874 | 13,179 | 13,730 | 12,942 | 12,491 | 12,162 | 11,658 | 10,783 | 12,726 | 13,727 | 14,177 | 13,733 | 13,387 | 13,110 | 12,793 | 13,170 | 13,244 | 12,414 | 13,271 | 12,833 | 12,772 | 12,547 | 11,601 | 12,478 | 12,227 | 13,183 | 12,977 | 13,017 | 12,524 | 12,580 | 12,763 | 12,640 | 12,939 | 13,541 | 12,818 | 12,518 | 12,265 | 12,022 | 11,753 | 11,762 | 11,428 | 11,323 | 11,180 | 11,007 | 10,815 | 10,546 | 10,239 | 9,984 | 9,886 | 9,963 | 9,863 | 9,716 | 9,318 | 9,382 | 9,457 | 9,226 | 8,572 | 8,661 | 9,259 | 9,505 | $ 9,613 | $ 8,861 | $ 9,288 | $ 9,993 | $ 9,916 | $ 10,122 | $ 10,137 | $ 9,838 | $ 10,056 | $ 9,440 | $ 9,664 | $ 9,938 | $ 9,803 | $ 9,767 | $ 10,071 | $ 9,886 | $ 10,000 | |||||||
| C000019031 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | KCE | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 28,097 | 28,215 | 26,947 | 28,016 | 26,716 | 25,187 | 25,727 | 22,878 | 20,588 | 21,763 | 22,422 | 22,886 | 21,171 | 19,656 | 20,302 | 20,636 | 21,747 | 22,075 | 19,475 | 20,902 | 19,502 | 17,578 | 19,525 | 19,912 | 17,815 | 19,913 | 19,164 | 22,148 | 22,259 | 23,006 | 25,027 | 24,575 | 25,596 | 22,853 | 23,809 | 22,808 | 22,494 | 22,090 | 21,379 | 20,082 | 19,084 | 17,649 | 17,864 | 16,252 | 14,228 | 13,626 | 14,093 | 13,543 | 13,128 | 12,790 | 12,059 | 10,567 | 12,853 | 13,966 | 13,686 | 13,600 | 12,772 | 12,539 | 12,273 | 12,960 | 12,634 | 11,934 | 13,000 | 12,058 | 12,343 | 11,693 | 10,761 | 11,914 | 11,628 | 12,570 | 13,045 | 13,163 | 12,872 | 13,211 | 13,004 | 12,940 | 13,036 | 13,197 | 12,693 | 12,390 | 11,672 | 11,474 | 10,795 | 11,100 | 10,699 | 10,046 | 10,146 | 10,120 | 10,260 | 9,884 | 9,654 | 9,553 | 8,372 | 8,655 | 8,761 | 8,338 | 7,687 | 8,704 | 8,415 | 8,223 | 7,535 | 7,711 | 9,076 | 9,715 | 9,265 | 8,634 | 9,321 | 10,437 | 10,499 | 10,432 | 10,308 | 10,364 | 10,262 | 9,533 | 10,365 | 10,098 | 9,992 | 9,776 | 10,073 | 9,656 | 10,000 | |||||||
| C000019032 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | KIE | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 27,969 | 28,618 | 27,143 | 29,104 | 27,675 | 26,450 | 25,161 | 25,061 | 23,651 | 23,560 | 23,466 | 23,458 | 22,553 | 20,980 | 22,233 | 21,653 | 23,719 | 23,801 | 22,431 | 23,194 | 22,508 | 19,675 | 20,617 | 20,639 | 20,511 | 21,619 | 20,991 | 22,651 | 21,484 | 21,500 | 21,686 | 20,435 | 21,541 | 20,181 | 21,075 | 20,267 | 20,496 | 21,046 | 20,787 | 19,370 | 18,405 | 16,934 | 17,692 | 17,013 | 14,854 | 14,661 | 15,343 | 14,844 | 14,229 | 14,041 | 13,518 | 12,924 | 16,362 | 18,260 | 18,252 | 18,189 | 17,635 | 18,060 | 17,193 | 17,678 | 17,351 | 16,492 | 16,889 | 15,710 | 16,023 | 15,396 | 14,349 | 15,587 | 15,106 | 16,130 | 16,058 | 15,895 | 14,943 | 15,182 | 15,419 | 15,496 | 15,123 | 15,680 | 15,257 | 15,406 | 15,175 | 14,833 | 14,509 | 15,014 | 14,467 | 14,154 | 14,142 | 14,055 | 14,235 | 13,591 | 13,517 | 13,084 | 12,050 | 12,021 | 12,090 | 11,611 | 11,491 | 11,752 | 11,230 | 11,134 | 10,420 | 10,510 | 11,133 | 11,532 | 11,339 | 10,754 | 10,857 | 11,371 | 10,802 | 10,720 | 10,573 | 10,607 | 10,505 | 9,894 | 10,508 | 10,388 | 10,256 | 9,853 | 10,115 | 9,532 | 10,000 | |||||||
| C000019033 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | XNTK | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 56,575 | 52,709 | 49,918 | 52,735 | 51,925 | 48,981 | 47,473 | 44,625 | 38,376 | 39,471 | 42,007 | 42,916 | 40,242 | 37,553 | 33,803 | 34,947 | 31,971 | 32,485 | 27,904 | 30,790 | 28,087 | 27,028 | 30,881 | 32,412 | 29,561 | 32,869 | 33,845 | 39,756 | 39,675 | 41,958 | 47,329 | 48,079 | 47,364 | 44,638 | 46,877 | 45,244 | 45,352 | 42,478 | 42,819 | 41,242 | 42,036 | 40,961 | 40,228 | 37,640 | 32,709 | 33,769 | 35,458 | 30,732 | 28,275 | 25,993 | 24,095 | 20,776 | 23,157 | 24,043 | 23,157 | 22,142 | 21,148 | 20,583 | 20,614 | 21,267 | 20,522 | 18,968 | 21,387 | 20,093 | 19,473 | 18,585 | 16,752 | 18,435 | 18,323 | 20,603 | 20,685 | 20,196 | 20,326 | 20,237 | 19,134 | 19,304 | 20,130 | 20,051 | 18,204 | 18,207 | 18,042 | 16,976 | 16,719 | 16,229 | 15,674 | 15,820 | 15,215 | 14,751 | 14,408 | 13,782 | 12,993 | 12,916 | 12,826 | 12,800 | 12,551 | 12,139 | 11,230 | 11,528 | 10,990 | 11,207 | 10,398 | 10,398 | 11,456 | 11,735 | 11,610 | 10,500 | 10,689 | 11,228 | 10,625 | 11,032 | 10,889 | 10,568 | 11,056 | 10,166 | 10,621 | 10,662 | 10,194 | 10,169 | 10,396 | 10,008 | 10,000 | |||||||
| C000033546 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | XHE | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 23,615 | 24,085 | 22,950 | 24,597 | 23,654 | 23,466 | 23,613 | 20,954 | 19,063 | 21,835 | 24,293 | 27,492 | 27,504 | 26,056 | 27,325 | 26,205 | 26,014 | 26,745 | 25,119 | 25,658 | 24,720 | 23,840 | 25,882 | 26,128 | 23,747 | 25,434 | 26,629 | 31,280 | 30,556 | 28,970 | 32,816 | 31,549 | 35,168 | 34,950 | 36,597 | 36,289 | 36,092 | 33,829 | 35,200 | 33,393 | 33,643 | 33,087 | 31,838 | 29,613 | 27,266 | 27,206 | 27,063 | 26,663 | 24,954 | 24,606 | 23,360 | 20,046 | 22,359 | 23,824 | 23,961 | 23,865 | 22,083 | 21,836 | 22,276 | 23,257 | 22,866 | 20,888 | 21,698 | 22,448 | 22,422 | 21,401 | 19,584 | 21,771 | 21,544 | 24,511 | 24,620 | 22,535 | 21,848 | 21,499 | 19,825 | 19,460 | 18,781 | 19,402 | 17,998 | 18,502 | 17,765 | 17,367 | 17,047 | 16,780 | 16,982 | 16,009 | 16,138 | 15,587 | 15,173 | 14,336 | 13,796 | 13,583 | 13,237 | 14,339 | 14,277 | 13,845 | 13,111 | 12,322 | 12,181 | 11,780 | 11,088 | 10,911 | 12,236 | 12,276 | 11,648 | 11,214 | 12,150 | 12,703 | 12,150 | 11,981 | 11,738 | 12,311 | 11,992 | 11,339 | 11,251 | 10,894 | 10,483 | 9,515 | 9,845 | 9,825 | 10,000 | |||||||
| C000033547 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | XHS | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 19,137 | 19,566 | 18,792 | 20,140 | 19,175 | 18,442 | 18,896 | 17,993 | 16,836 | 17,671 | 18,884 | 19,922 | 19,870 | 18,290 | 18,981 | 18,321 | 19,280 | 19,611 | 17,956 | 18,988 | 19,449 | 18,572 | 19,630 | 20,110 | 17,419 | 18,298 | 18,473 | 21,413 | 20,066 | 19,410 | 22,417 | 20,765 | 22,407 | 22,024 | 23,495 | 23,645 | 24,152 | 23,785 | 23,216 | 22,444 | 21,455 | 21,738 | 20,422 | 18,918 | 16,556 | 16,305 | 16,415 | 16,005 | 14,337 | 14,721 | 13,483 | 12,162 | 14,212 | 15,143 | 15,310 | 14,903 | 13,327 | 12,840 | 13,162 | 14,041 | 13,695 | 12,751 | 13,142 | 13,255 | 14,070 | 14,272 | 12,876 | 15,464 | 14,665 | 15,706 | 15,628 | 14,707 | 14,223 | 13,852 | 13,373 | 12,857 | 13,065 | 13,596 | 12,566 | 12,449 | 12,098 | 12,498 | 12,354 | 12,539 | 13,171 | 12,288 | 11,991 | 11,868 | 11,967 | 11,290 | 10,732 | 10,601 | 10,292 | 11,257 | 11,211 | 12,017 | 11,697 | 11,696 | 11,794 | 11,297 | 10,664 | 10,731 | 11,683 | 11,839 | 11,595 | 11,524 | 12,544 | 13,264 | 13,258 | 12,885 | 12,178 | 12,570 | 12,155 | 11,203 | 11,331 | 11,046 | 10,966 | 10,230 | 10,582 | 10,186 | 10,000 | |||||||
| C000033549 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | XME | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 16,417 | 17,793 | 16,369 | 16,639 | 15,576 | 15,755 | 16,484 | 15,061 | 13,611 | 14,445 | 14,285 | 14,789 | 13,938 | 12,174 | 13,501 | 14,529 | 15,305 | 15,565 | 13,565 | 14,596 | 13,118 | 11,500 | 13,231 | 13,002 | 11,699 | 14,381 | 15,060 | 16,451 | 14,105 | 11,189 | 11,991 | 10,999 | 11,665 | 11,156 | 11,819 | 11,996 | 11,492 | 12,376 | 10,790 | 10,634 | 9,538 | 8,603 | 8,890 | 7,765 | 6,470 | 6,161 | 6,551 | 6,050 | 5,606 | 5,488 | 5,081 | 4,247 | 5,802 | 6,519 | 7,666 | 7,212 | 6,858 | 6,631 | 6,620 | 7,266 | 7,370 | 6,266 | 7,400 | 7,629 | 7,902 | 7,843 | 6,691 | 7,394 | 7,791 | 8,702 | 8,628 | 9,131 | 9,024 | 9,426 | 8,795 | 8,564 | 9,057 | 9,268 | 9,076 | 7,964 | 7,892 | 8,021 | 8,066 | 7,821 | 7,455 | 7,182 | 7,406 | 7,552 | 8,025 | 8,280 | 7,543 | 7,705 | 6,304 | 6,571 | 6,343 | 7,167 | 6,020 | 5,416 | 6,060 | 5,030 | 4,085 | 3,407 | 3,664 | 3,900 | 4,181 | 4,058 | 4,947 | 4,882 | 5,866 | 6,522 | 6,794 | 6,299 | 7,008 | 6,502 | 7,399 | 8,015 | 8,371 | 8,747 | 10,355 | 9,789 | 10,000 | |||||||
| C000033550 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | XES | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 2,096 | 2,156 | 2,035 | 2,140 | 1,880 | 1,871 | 1,938 | 1,912 | 2,001 | 2,191 | 2,124 | 2,157 | 1,785 | 1,530 | 1,682 | 1,716 | 1,944 | 1,996 | 1,816 | 1,791 | 1,786 | 1,255 | 1,429 | 1,453 | 1,358 | 1,743 | 1,594 | 1,704 | 1,458 | 1,318 | 1,121 | 1,091 | 1,295 | 1,232 | 1,165 | 1,198 | 1,401 | 1,325 | 1,141 | 1,205 | 1,286 | 1,077 | 1,000 | 869 | 610 | 622 | 766 | 758 | 736 | 718 | 646 | 502 | 1,175 | 1,426 | 1,769 | 1,487 | 1,455 | 1,574 | 1,556 | 2,000 | 2,085 | 1,863 | 2,412 | 2,492 | 2,449 | 2,361 | 1,940 | 2,551 | 2,920 | 3,594 | 3,487 | 3,665 | 3,645 | 3,708 | 3,656 | 3,123 | 3,139 | 3,749 | 3,670 | 3,384 | 3,294 | 3,540 | 2,846 | 3,234 | 3,266 | 3,384 | 3,735 | 4,230 | 4,508 | 4,727 | 4,699 | 4,455 | 3,711 | 3,997 | 3,680 | 3,714 | 3,930 | 3,799 | 4,088 | 3,621 | 3,132 | 3,228 | 3,662 | 4,287 | 4,142 | 3,689 | 4,483 | 4,477 | 5,377 | 5,711 | 6,172 | 5,165 | 5,452 | 5,102 | 5,771 | 6,065 | 7,233 | 8,169 | 9,280 | 9,101 | 10,000 | |||||||
| C000033537 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | XPH | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 9,345 | 9,457 | 9,307 | 10,078 | 10,349 | 9,783 | 9,688 | 8,582 | 8,311 | 9,220 | 10,107 | 10,109 | 9,484 | 9,096 | 9,692 | 9,453 | 9,475 | 10,010 | 9,416 | 9,824 | 9,675 | 9,180 | 9,468 | 9,767 | 9,582 | 9,536 | 9,384 | 10,276 | 9,802 | 9,853 | 10,433 | 10,321 | 10,799 | 10,679 | 10,901 | 11,326 | 11,633 | 11,341 | 11,052 | 11,296 | 11,956 | 11,627 | 11,662 | 10,710 | 9,885 | 9,726 | 9,901 | 9,537 | 9,635 | 9,640 | 9,374 | 8,060 | 9,192 | 10,108 | 10,190 | 9,105 | 8,612 | 7,923 | 7,866 | 8,427 | 8,826 | 8,149 | 8,821 | 9,220 | 9,492 | 8,881 | 8,105 | 9,623 | 9,544 | 10,719 | 11,005 | 10,235 | 9,472 | 9,271 | 8,856 | 9,213 | 9,150 | 9,815 | 9,567 | 9,442 | 8,907 | 9,339 | 9,397 | 9,461 | 9,426 | 9,119 | 9,418 | 9,151 | 9,147 | 8,472 | 8,542 | 8,566 | 8,667 | 9,630 | 9,770 | 10,007 | 9,110 | 9,464 | 9,190 | 8,745 | 8,839 | 9,358 | 11,120 | 11,001 | 9,957 | 9,568 | 11,790 | 13,329 | 12,694 | 12,633 | 11,927 | 12,551 | 12,547 | 11,301 | 10,960 | 11,121 | 10,766 | 10,241 | 10,010 | 9,171 | 10,000 | |||||||
| C000033538 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | XRT | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 20,075 | 20,619 | 19,123 | 21,024 | 20,314 | 18,225 | 19,219 | 17,088 | 15,520 | 16,093 | 16,959 | 17,875 | 16,811 | 14,924 | 16,127 | 16,642 | 17,384 | 18,354 | 15,808 | 17,449 | 16,259 | 14,638 | 16,342 | 16,385 | 15,001 | 16,952 | 18,008 | 19,356 | 19,769 | 20,928 | 23,136 | 23,784 | 23,884 | 22,902 | 24,271 | 24,115 | 24,583 | 23,617 | 23,466 | 22,509 | 19,988 | 22,193 | 16,215 | 15,107 | 12,533 | 12,467 | 12,982 | 11,871 | 10,740 | 10,198 | 9,168 | 7,441 | 10,027 | 10,703 | 11,443 | 11,058 | 10,667 | 10,507 | 9,794 | 10,501 | 10,451 | 9,817 | 11,209 | 11,041 | 11,215 | 10,802 | 10,024 | 11,286 | 11,485 | 12,433 | 12,632 | 12,042 | 11,781 | 11,214 | 10,933 | 10,720 | 10,919 | 11,394 | 10,898 | 10,505 | 9,491 | 10,041 | 9,374 | 9,838 | 9,736 | 9,697 | 10,231 | 10,058 | 10,200 | 10,260 | 10,471 | 10,803 | 9,989 | 10,306 | 10,481 | 10,630 | 9,896 | 9,941 | 10,394 | 10,850 | 10,138 | 9,604 | 10,133 | 10,391 | 10,701 | 10,349 | 10,888 | 11,447 | 11,484 | 11,355 | 11,237 | 11,761 | 11,418 | 10,750 | 11,108 | 10,891 | 10,212 | 9,884 | 10,240 | 9,663 | 10,000 | |||||||
| C000027708 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | XSD | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 69,396 | 69,007 | 62,936 | 65,123 | 62,651 | 59,031 | 63,034 | 55,842 | 47,539 | 54,877 | 59,656 | 64,109 | 61,913 | 56,965 | 49,867 | 58,319 | 55,386 | 54,804 | 46,737 | 51,887 | 43,777 | 42,436 | 47,646 | 50,841 | 42,308 | 50,834 | 47,869 | 57,674 | 57,452 | 56,901 | 67,602 | 66,199 | 61,520 | 55,018 | 56,287 | 53,085 | 53,449 | 49,670 | 49,137 | 50,792 | 51,738 | 49,863 | 47,432 | 43,721 | 36,815 | 34,886 | 35,133 | 33,812 | 31,068 | 29,707 | 27,600 | 23,267 | 26,441 | 28,247 | 29,312 | 27,023 | 25,937 | 24,828 | 24,286 | 25,283 | 23,302 | 20,273 | 23,850 | 21,623 | 21,661 | 19,716 | 17,798 | 19,399 | 18,453 | 20,814 | 21,551 | 20,357 | 19,756 | 20,386 | 18,292 | 19,095 | 19,394 | 19,988 | 19,004 | 19,340 | 19,250 | 17,824 | 17,333 | 17,640 | 16,737 | 17,479 | 16,083 | 16,343 | 16,162 | 15,753 | 15,174 | 14,828 | 13,756 | 14,358 | 13,868 | 13,442 | 11,989 | 12,218 | 11,392 | 11,973 | 11,172 | 11,119 | 11,736 | 12,105 | 11,390 | 10,116 | 10,263 | 10,638 | 11,526 | 12,300 | 11,317 | 11,702 | 11,740 | 10,603 | 10,638 | 10,094 | 9,609 | 9,788 | 10,264 | 9,281 | 10,000 | |||||||
| C000033545 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | XSW | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 35,324 | 33,994 | 33,870 | 36,377 | 36,142 | 34,497 | 35,222 | 31,872 | 27,959 | 29,636 | 31,463 | 33,264 | 31,110 | 29,807 | 27,168 | 28,728 | 28,008 | 28,421 | 25,343 | 26,246 | 26,763 | 24,945 | 27,364 | 28,104 | 25,878 | 28,427 | 30,436 | 34,319 | 33,654 | 34,717 | 38,572 | 38,624 | 42,219 | 39,968 | 41,526 | 39,917 | 39,912 | 37,423 | 37,982 | 36,642 | 37,364 | 35,839 | 35,842 | 32,516 | 27,471 | 27,775 | 28,917 | 27,069 | 25,921 | 24,856 | 22,005 | 19,072 | 22,940 | 24,351 | 23,563 | 23,799 | 22,177 | 21,614 | 22,278 | 22,967 | 22,272 | 21,381 | 22,827 | 21,845 | 21,423 | 19,678 | 17,306 | 18,754 | 18,588 | 20,985 | 21,045 | 18,958 | 18,712 | 18,646 | 17,869 | 17,413 | 17,382 | 17,195 | 15,976 | 16,040 | 15,793 | 15,135 | 14,896 | 14,720 | 14,388 | 14,364 | 13,699 | 13,523 | 13,354 | 12,920 | 12,522 | 12,661 | 12,292 | 12,702 | 12,489 | 12,283 | 11,544 | 11,621 | 11,099 | 10,891 | 10,194 | 10,251 | 11,439 | 11,883 | 11,416 | 10,638 | 10,906 | 11,632 | 11,602 | 11,574 | 11,322 | 11,234 | 11,239 | 10,266 | 10,651 | 10,556 | 10,296 | 9,727 | 10,034 | 9,673 | 10,000 | |||||||
| C000033539 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | XTL | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 15,449 | 15,218 | 13,503 | 14,726 | 14,892 | 15,186 | 15,837 | 13,908 | 13,058 | 14,031 | 15,290 | 14,483 | 15,298 | 14,351 | 14,757 | 15,933 | 15,981 | 17,032 | 16,003 | 17,170 | 17,243 | 15,082 | 16,905 | 17,056 | 15,229 | 16,395 | 16,012 | 18,086 | 17,490 | 17,799 | 19,806 | 18,556 | 18,625 | 18,533 | 19,549 | 19,307 | 19,731 | 19,234 | 18,414 | 18,073 | 17,740 | 17,674 | 16,330 | 15,115 | 13,085 | 12,944 | 14,213 | 14,490 | 13,332 | 13,256 | 12,743 | 11,335 | 12,583 | 13,043 | 13,321 | 13,116 | 12,868 | 12,737 | 12,664 | 13,473 | 12,822 | 12,321 | 13,815 | 13,354 | 13,602 | 12,905 | 11,879 | 13,303 | 13,181 | 14,337 | 14,427 | 13,356 | 13,532 | 13,141 | 13,012 | 12,855 | 12,783 | 12,982 | 12,649 | 12,988 | 12,729 | 12,803 | 12,850 | 13,163 | 12,879 | 12,887 | 12,892 | 12,919 | 12,902 | 12,898 | 12,605 | 12,254 | 11,493 | 11,897 | 11,415 | 11,205 | 10,539 | 10,463 | 10,247 | 10,281 | 9,800 | 9,115 | 10,032 | 10,313 | 10,272 | 9,454 | 9,887 | 10,307 | 10,232 | 10,617 | 10,504 | 10,358 | 10,687 | 9,802 | 10,202 | 10,181 | 10,033 | 9,726 | 10,088 | 9,794 | 10,000 | |||||||
| C000033540 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | XTN | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 18,279 | 17,997 | 17,606 | 19,754 | 19,253 | 18,271 | 19,418 | 17,329 | 15,676 | 17,401 | 18,617 | 20,406 | 19,382 | 16,630 | 16,852 | 16,745 | 17,705 | 17,825 | 15,490 | 17,205 | 16,223 | 14,645 | 16,700 | 17,619 | 15,565 | 17,969 | 18,667 | 20,388 | 20,060 | 19,603 | 21,561 | 20,599 | 20,709 | 19,729 | 19,578 | 18,906 | 19,347 | 20,711 | 20,238 | 19,916 | 18,365 | 15,739 | 16,115 | 15,692 | 13,216 | 13,092 | 13,591 | 12,261 | 11,888 | 11,717 | 10,802 | 9,829 | 12,367 | 14,078 | 14,413 | 14,407 | 13,929 | 13,627 | 13,139 | 14,026 | 13,634 | 12,480 | 13,990 | 13,388 | 13,674 | 13,271 | 11,837 | 14,041 | 13,061 | 14,804 | 14,909 | 14,412 | 13,875 | 14,173 | 13,594 | 13,773 | 13,752 | 14,665 | 14,286 | 13,852 | 13,132 | 13,132 | 12,395 | 11,853 | 12,091 | 11,460 | 11,739 | 11,529 | 12,107 | 11,846 | 11,744 | 11,687 | 10,299 | 10,269 | 10,113 | 10,102 | 9,458 | 9,690 | 9,803 | 9,930 | 9,127 | 8,570 | 9,248 | 9,992 | 10,019 | 9,386 | 9,868 | 10,639 | 10,389 | 10,651 | 10,882 | 11,385 | 11,521 | 10,730 | 11,598 | 11,381 | 10,474 | 9,923 | 10,041 | 9,725 | 10,000 | |||||||
| C000152674 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | QUS | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 29,050 | 28,446 | 27,319 | 28,484 | 27,520 | 26,410 | 25,883 | 24,778 | 22,999 | 23,400 | 24,294 | 24,578 | 23,840 | 22,576 | 22,707 | 22,317 | 21,571 | 22,211 | 21,242 | 22,293 | 20,968 | 19,358 | 21,168 | 22,051 | 20,604 | 22,137 | 21,986 | 23,592 | 22,698 | 23,473 | 24,730 | 23,444 | 23,778 | 22,420 | 23,619 | 23,045 | 22,452 | 21,971 | 21,637 | 20,749 | 19,723 | 19,162 | 19,517 | 18,923 | 17,002 | 17,490 | 17,966 | 17,050 | 16,350 | 16,318 | 15,558 | 14,023 | 15,978 | 17,413 | 17,370 | 16,905 | 16,386 | 16,113 | 15,808 | 15,964 | 15,648 | 14,706 | 15,520 | 14,967 | 14,656 | 14,126 | 13,114 | 14,336 | 14,032 | 14,856 | 14,765 | 14,324 | 13,828 | 13,707 | 13,449 | 13,485 | 13,722 | 14,239 | 13,602 | 13,458 | 13,013 | 12,689 | 12,456 | 12,411 | 12,178 | 12,170 | 12,001 | 11,853 | 11,852 | 11,355 | 11,212 | 10,976 | 10,637 | 10,854 | 10,866 | 10,873 | 10,532 | 10,413 | 10,270 | 10,285 | 9,661 | 9,622 | 10,038 | 10,152 | 10,133 | 9,400 | 9,533 | 10,057 | 9,809 | 10,022 | 9,895 | $ 10,000 | ||||||||||||||||
| C000078463 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | PSK | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 13,639 | 13,532 | 13,254 | 13,801 | 13,768 | 13,634 | 13,148 | 12,840 | 11,814 | 12,450 | 12,591 | 12,798 | 12,614 | 12,545 | 12,874 | 12,592 | 13,177 | 13,534 | 12,061 | 12,576 | 11,844 | 12,536 | 12,816 | 13,463 | 12,717 | 13,169 | 12,670 | 13,618 | 13,729 | 14,275 | 14,851 | 14,498 | 14,840 | 14,781 | 14,790 | 14,831 | 14,869 | 14,601 | 14,532 | 14,416 | 14,033 | 14,296 | 14,612 | 14,345 | 14,019 | 14,048 | 14,120 | 13,918 | 13,333 | 13,479 | 13,329 | 12,398 | 13,430 | 13,867 | 13,745 | 13,474 | 13,611 | 13,560 | 13,475 | 13,347 | 13,077 | 12,927 | 12,829 | 12,735 | 12,564 | 12,405 | 11,701 | 11,752 | 12,068 | 12,304 | 12,507 | 12,349 | 12,358 | 12,201 | 12,063 | 12,184 | 12,082 | 11,885 | 12,256 | 12,295 | 12,245 | 12,245 | 12,236 | 12,221 | 12,162 | 12,057 | 11,918 | 11,727 | 11,640 | 11,436 | 11,085 | 11,115 | 11,670 | 11,784 | 11,884 | 11,868 | 11,776 | 11,596 | 11,432 | 11,362 | 11,171 | 11,161 | 11,164 | 11,070 | 10,967 | 10,737 | 10,699 | 10,682 | 10,510 | 10,641 | 10,667 | 10,724 | 10,640 | 10,579 | 10,354 | 10,372 | 10,217 | 10,062 | 10,147 | 9,938 | 10,000 | |||||||
| C000162275 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | XITK | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 30,933 | 29,754 | 29,323 | 31,505 | 31,662 | 30,368 | 30,821 | 27,659 | 23,830 | 26,100 | 28,320 | 30,516 | 27,834 | 25,786 | 23,148 | 25,221 | 23,952 | 24,502 | 21,129 | 21,668 | 21,555 | 21,011 | 23,625 | 23,798 | 22,733 | 24,859 | 26,857 | 32,242 | 33,843 | 34,443 | 40,233 | 42,965 | 48,390 | 45,423 | 47,754 | 46,866 | 47,657 | 43,939 | 45,560 | 44,021 | 48,800 | 46,843 | 45,352 | 41,763 | 35,813 | 35,569 | 36,185 | 33,732 | 30,604 | 27,991 | 24,213 | 20,819 | 24,048 | 24,960 | 23,886 | 23,843 | 22,188 | 20,993 | 21,931 | 22,752 | 22,225 | 21,005 | 22,972 | 21,968 | 21,644 | 20,061 | 17,432 | 18,983 | 18,607 | 21,514 | 21,804 | 19,515 | 19,809 | 19,877 | 18,137 | 18,201 | 17,979 | 17,431 | 16,126 | 16,322 | 16,226 | 15,787 | 15,273 | 14,810 | 14,230 | 14,162 | 13,535 | 13,008 | 12,759 | 12,433 | 11,893 | 12,284 | 11,902 | 12,580 | 12,396 | 12,056 | 10,968 | 11,030 | 10,740 | 10,552 | 9,918 | 9,854 | $ 10,000 | |||||||||||||||||||||||||
| C000166946 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | SHE | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 23,705 | 22,840 | 21,979 | 23,026 | 22,305 | 21,073 | 20,592 | 19,682 | 18,136 | 18,342 | 19,171 | 19,546 | 18,924 | 17,814 | 18,060 | 17,749 | 17,310 | 17,807 | 16,820 | 17,769 | 17,126 | 15,440 | 16,809 | 17,313 | 16,058 | 17,457 | 17,675 | 19,417 | 19,124 | 19,806 | 21,475 | 20,910 | 22,416 | 21,136 | 22,136 | 21,639 | 21,247 | 20,822 | 20,683 | 19,798 | 19,386 | 18,247 | 18,644 | 17,648 | 15,461 | 15,852 | 16,200 | 15,197 | 14,666 | 14,566 | 13,734 | 12,157 | 14,442 | 15,637 | 15,817 | 15,604 | 15,127 | 14,951 | 14,810 | 15,094 | 14,945 | 14,006 | 14,749 | 14,323 | 14,185 | 13,791 | 12,793 | 14,045 | 13,596 | 14,608 | 14,459 | 14,114 | 13,646 | 13,439 | 13,281 | 13,129 | 13,314 | 13,840 | 13,249 | 13,116 | 12,663 | 12,512 | 12,170 | 12,162 | 11,986 | 11,861 | 11,780 | 11,616 | 11,692 | 11,208 | 11,066 | 11,006 | 10,619 | 10,839 | 10,903 | 10,939 | 10,533 | 10,477 | 10,482 | 10,311 | $ 10,000 | |||||||||||||||||||||||||||
| C000219610 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | EMHC | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 9,263 | 9,279 | 9,041 | 9,270 | 9,157 | 9,137 | 9,255 | 8,833 | 8,329 | 8,453 | 8,725 | 8,885 | 8,751 | 8,589 | 8,707 | 8,663 | 8,494 | 8,714 | 8,411 | 8,492 | 7,766 | 7,753 | 8,268 | 8,458 | 8,138 | 8,616 | 8,552 | 9,136 | 9,222 | 9,867 | 10,228 | 10,043 | 10,221 | 10,211 | 10,473 | 10,388 | 10,335 | 10,235 | 10,143 | $ 10,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000222017 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | BILS | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,837 | 10,793 | 10,743 | 10,703 | 10,660 | 10,622 | 10,578 | 10,528 | 10,475 | 10,428 | 10,387 | 10,337 | 10,298 | 10,252 | 10,222 | 10,192 | 10,142 | 10,112 | 10,082 | 10,041 | 10,008 | 10,002 | 9,990 | 9,979 | 9,976 | 9,984 | 9,976 | 9,978 | 9,983 | 9,984 | 9,993 | 9,994 | 9,995 | 9,997 | 9,997 | 9,998 | 9,998 | 10,000 | 10,001 | 10,002 | 10,001 | 10,002 | 10,001 | 10,001 | 10,001 | 10,001 | $ 10,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000047963 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | BIL | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,433 | 11,388 | 11,336 | 11,287 | 11,241 | 11,191 | 11,144 | 11,096 | 11,045 | 10,997 | 10,953 | 10,900 | 10,858 | 10,808 | 10,767 | 10,729 | 10,685 | 10,649 | 10,618 | 10,580 | 10,548 | 10,529 | 10,508 | 10,489 | 10,484 | 10,477 | 10,474 | 10,474 | 10,472 | 10,473 | 10,474 | 10,475 | 10,475 | 10,477 | 10,477 | 10,478 | 10,479 | 10,480 | 10,482 | 10,483 | 10,483 | 10,484 | 10,484 | 10,485 | 10,485 | 10,485 | 10,486 | 10,486 | 10,486 | 10,486 | 10,486 | 10,489 | 10,468 | 10,456 | 10,444 | 10,430 | 10,419 | 10,403 | 10,387 | 10,368 | 10,351 | 10,331 | 10,309 | 10,290 | 10,271 | 10,253 | 10,234 | 10,216 | 10,197 | 10,179 | 10,166 | 10,149 | 10,135 | 10,120 | 10,106 | 10,094 | 10,081 | 10,073 | 10,063 | 10,053 | 10,046 | 10,039 | 10,032 | 10,025 | 10,017 | 10,009 | 10,003 | 10,000 | 9,998 | 9,996 | 9,991 | 9,989 | 9,991 | 9,991 | 9,989 | 9,989 | 9,989 | 9,985 | 9,985 | 9,985 | 9,983 | 9,983 | 9,983 | 9,983 | 9,983 | 9,985 | 9,985 | 9,985 | 9,985 | 9,989 | 9,989 | 9,989 | 9,991 | 9,991 | 9,991 | 9,996 | 9,996 | 9,998 | 9,998 | 9,998 | 10,000 | |||||||
| C000126354 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | TIPX | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 12,064 | 11,971 | 11,813 | 11,919 | 11,845 | 11,948 | 11,897 | 11,672 | 11,458 | 11,468 | 11,582 | 11,626 | 11,575 | 11,629 | 11,767 | 11,744 | 11,435 | 11,565 | 11,392 | 11,495 | 11,357 | 11,224 | 11,824 | 12,107 | 11,683 | 11,978 | 11,977 | 12,107 | 12,299 | 12,173 | 12,330 | 12,271 | 12,239 | 12,150 | 12,203 | 12,227 | 11,946 | 11,933 | 11,835 | 11,681 | 11,669 | 11,759 | 11,691 | 11,541 | 11,455 | 11,501 | 11,545 | 11,398 | 11,230 | 11,122 | 11,029 | 10,800 | 11,000 | 10,928 | 10,780 | 10,705 | 10,705 | 10,690 | 10,764 | 10,638 | 10,614 | 10,512 | 10,396 | 10,360 | 10,215 | 10,226 | 10,100 | 10,058 | 10,028 | 10,113 | 10,171 | 10,109 | 10,150 | 10,117 | 10,072 | 10,090 | 10,025 | 10,067 | 10,143 | 10,088 | 10,101 | 10,086 | 10,145 | 10,072 | 10,019 | 10,094 | 10,097 | 10,063 | 10,063 | 10,043 | 9,941 | 9,941 | 10,089 | 10,109 | 10,026 | 10,093 | 10,108 | 9,905 | 9,956 | 9,966 | 9,840 | 9,718 | 9,723 | 9,651 | 9,677 | 9,671 | 9,747 | 9,747 | 9,747 | 9,793 | 9,848 | 9,778 | 9,813 | 9,914 | 9,662 | 9,811 | 9,801 | 9,790 | 9,959 | 9,946 | 10,000 | |||||||
| C000066456 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | CWB | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 21,538 | 21,390 | 20,927 | 21,742 | 21,294 | 21,130 | 21,402 | 20,164 | 19,118 | 19,932 | 20,469 | 21,095 | 20,523 | 19,538 | 19,273 | 19,553 | 19,472 | 19,832 | 18,702 | 19,223 | 18,763 | 18,195 | 19,529 | 19,474 | 18,501 | 19,671 | 20,271 | 22,015 | 21,763 | 21,844 | 23,588 | 23,696 | 24,817 | 24,041 | 24,536 | 24,075 | 24,366 | 23,630 | 23,894 | 23,293 | 24,270 | 23,567 | 23,076 | 21,554 | 18,915 | 18,948 | 19,424 | 17,785 | 16,550 | 15,554 | 14,503 | 13,023 | 15,038 | 15,551 | 15,052 | 14,624 | 14,227 | 13,997 | 14,042 | 14,256 | 14,043 | 13,418 | 14,149 | 13,794 | 13,770 | 13,294 | 12,316 | 13,015 | 12,699 | 13,595 | 13,681 | 13,356 | 13,291 | 13,326 | 12,851 | 12,874 | 12,866 | 13,187 | 12,560 | 12,599 | 12,604 | 12,399 | 12,343 | 12,302 | 11,951 | 11,792 | 11,686 | 11,490 | 11,396 | 11,160 | 10,856 | 10,715 | 10,662 | 10,784 | 10,661 | 10,534 | 10,093 | 10,039 | 9,953 | 9,874 | 9,373 | 9,300 | 9,806 | 9,940 | 9,999 | 9,580 | 9,809 | 10,080 | 10,110 | 10,445 | 10,251 | 10,102 | 10,109 | 9,747 | 9,874 | 10,073 | 9,945 | 9,892 | 10,175 | 9,856 | 10,000 | |||||||
| C000047970 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | TFI | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 12,032 | 11,869 | 11,943 | 12,128 | 12,173 | 12,173 | 12,223 | 11,866 | 11,129 | 11,257 | 11,631 | 11,813 | 11,815 | 11,711 | 11,847 | 11,892 | 11,580 | 11,928 | 11,553 | 11,595 | 10,988 | 11,063 | 11,472 | 11,833 | 11,487 | 11,731 | 11,523 | 11,940 | 12,397 | 12,494 | 12,868 | 12,848 | 12,749 | 12,762 | 12,878 | 12,920 | 12,841 | 12,809 | 12,781 | 12,673 | 12,618 | 12,856 | 12,834 | 12,770 | 12,553 | 12,613 | 12,618 | 12,687 | 12,487 | 12,493 | 11,950 | 12,026 | 12,468 | 12,380 | 12,132 | 12,087 | 12,087 | 12,069 | 12,189 | 11,982 | 11,866 | 11,839 | 11,663 | 11,601 | 11,408 | 11,349 | 11,287 | 11,112 | 10,957 | 11,051 | 11,151 | 11,122 | 11,100 | 11,115 | 10,984 | 11,044 | 10,979 | 11,054 | 11,225 | 11,092 | 11,156 | 11,126 | 11,206 | 11,122 | 11,019 | 11,077 | 10,875 | 10,787 | 10,753 | 10,698 | 10,646 | 10,540 | 11,012 | 11,137 | 11,210 | 11,188 | 11,191 | 10,973 | 10,964 | 10,852 | 10,825 | 10,805 | 10,682 | 10,558 | 10,520 | 10,474 | 10,363 | 10,373 | 10,248 | 10,263 | 10,333 | 10,399 | 10,386 | 10,545 | 10,336 | 10,249 | 10,238 | 10,183 | 10,176 | 10,037 | 10,000 | |||||||
| C000047964 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | SHM | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,801 | 10,721 | 10,757 | 10,816 | 10,852 | 10,841 | 10,881 | 10,754 | 10,470 | 10,474 | 10,599 | 10,606 | 10,607 | 10,545 | 10,616 | 10,686 | 10,496 | 10,715 | 10,558 | 10,537 | 10,328 | 10,331 | 10,527 | 10,696 | 10,573 | 10,575 | 10,442 | 10,570 | 10,742 | 10,771 | 10,979 | 10,975 | 10,973 | 10,989 | 11,023 | 11,038 | 11,003 | 11,003 | 11,008 | 10,980 | 10,964 | 11,032 | 11,013 | 11,003 | 10,957 | 10,992 | 10,991 | 11,009 | 10,949 | 10,967 | 10,731 | 10,698 | 10,817 | 10,800 | 10,731 | 10,698 | 10,685 | 10,654 | 10,690 | 10,676 | 10,603 | 10,564 | 10,487 | 10,480 | 10,440 | 10,401 | 10,367 | 10,272 | 10,211 | 10,232 | 10,281 | 10,286 | 10,259 | 10,225 | 10,164 | 10,200 | 10,221 | 10,219 | 10,198 | 10,184 | 10,297 | 10,308 | 10,365 | 10,323 | 10,260 | 10,312 | 10,252 | 10,218 | 10,212 | 10,166 | 10,094 | 10,039 | 10,227 | 10,252 | 10,303 | 10,306 | 10,276 | 10,221 | 10,227 | 10,200 | 10,233 | 10,200 | 10,159 | 10,147 | 10,168 | 10,127 | 10,111 | 10,099 | 10,066 | 10,030 | 10,035 | 10,061 | 10,080 | 10,115 | 10,028 | 10,071 | 10,064 | 10,051 | 10,069 | 10,033 | 10,000 | |||||||
| C000088522 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | HYMB | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 13,382 | 13,224 | 13,141 | 13,363 | 13,251 | 13,187 | 13,096 | 12,678 | 11,834 | 12,108 | 12,514 | 12,652 | 12,616 | 12,433 | 12,496 | 12,457 | 12,264 | 12,678 | 12,154 | 12,293 | 11,498 | 11,730 | 12,538 | 12,904 | 12,457 | 12,870 | 12,759 | 13,236 | 13,811 | 13,859 | 14,364 | 14,266 | 14,134 | 14,191 | 14,337 | 14,368 | 14,280 | 14,142 | 13,967 | 13,828 | 13,647 | 13,884 | 13,658 | 13,370 | 12,987 | 13,017 | 13,022 | 13,043 | 12,782 | 12,312 | 11,920 | 12,322 | 13,621 | 13,477 | 13,179 | 13,133 | 13,077 | 13,085 | 13,094 | 12,833 | 12,754 | 12,693 | 12,483 | 12,414 | 12,140 | 11,985 | 12,040 | 11,843 | 11,817 | 11,912 | 11,967 | 11,887 | 11,835 | 11,781 | 11,614 | 11,583 | 11,445 | 11,459 | 11,480 | 11,385 | 11,363 | 11,588 | 11,705 | 11,574 | 11,476 | 11,535 | 11,403 | 11,315 | 11,315 | 11,157 | 11,121 | 10,740 | 11,499 | 11,637 | 11,645 | 11,626 | 11,616 | 11,337 | 11,242 | 11,084 | 10,978 | 10,909 | 10,896 | 10,760 | 10,744 | 10,639 | 10,472 | 10,387 | 10,306 | 10,567 | 10,559 | 10,567 | 10,592 | 10,745 | 10,493 | 10,363 | 10,276 | 10,212 | 10,118 | 9,923 | 10,000 | |||||||
| C000055013 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | JNK | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 13,309 | 13,243 | 13,036 | 13,206 | 13,060 | 13,028 | 13,009 | 12,583 | 12,006 | 12,133 | 12,342 | 12,315 | 12,150 | 11,927 | 12,079 | 12,053 | 11,808 | 12,032 | 11,568 | 11,790 | 11,375 | 11,037 | 11,489 | 11,998 | 11,237 | 12,156 | 11,982 | 12,534 | 12,702 | 12,813 | 13,172 | 12,871 | 13,039 | 13,084 | 13,117 | 13,043 | 13,019 | 12,849 | 12,841 | 12,746 | 12,628 | 12,607 | 12,670 | 12,406 | 11,983 | 11,928 | 12,049 | 12,036 | 11,419 | 11,459 | 11,069 | 10,538 | 11,847 | 12,020 | 12,076 | 11,838 | 11,770 | 11,777 | 11,732 | 11,651 | 11,639 | 11,285 | 11,512 | 11,363 | 11,216 | 11,065 | 10,513 | 10,762 | 10,840 | 11,060 | 10,998 | 10,925 | 10,735 | 10,733 | 10,754 | 10,706 | 10,761 | 10,865 | 10,865 | 10,835 | 10,870 | 10,848 | 10,783 | 10,778 | 10,669 | 10,666 | 10,549 | 10,441 | 10,462 | 10,331 | 10,200 | 10,017 | 9,996 | 10,077 | 9,976 | 9,792 | 9,644 | 9,467 | 9,431 | 9,107 | 8,836 | 8,730 | 8,919 | 9,197 | 9,437 | 9,183 | 9,477 | 9,678 | 9,744 | 9,948 | 9,908 | 9,800 | 9,893 | 9,643 | 9,564 | 9,708 | 9,855 | 9,750 | 10,005 | 9,763 | 10,000 | |||||||
| C000111386 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | SJNK | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 14,237 | 14,159 | 14,007 | 14,115 | 14,004 | 13,934 | 13,899 | 13,544 | 13,057 | 13,175 | 13,286 | 13,215 | 13,070 | 12,847 | 12,928 | 12,900 | 12,716 | 12,844 | 12,454 | 12,598 | 12,239 | 11,949 | 12,232 | 12,519 | 11,933 | 12,617 | 12,515 | 12,820 | 12,909 | 12,983 | 13,167 | 12,963 | 13,097 | 13,092 | 13,085 | 13,036 | 13,052 | 12,921 | 12,895 | 12,806 | 12,649 | 12,553 | 12,539 | 12,291 | 11,892 | 11,815 | 11,857 | 11,807 | 11,357 | 11,257 | 10,952 | 10,447 | 11,700 | 11,826 | 11,848 | 11,640 | 11,632 | 11,659 | 11,623 | 11,613 | 11,600 | 11,388 | 11,541 | 11,445 | 11,354 | 11,236 | 10,821 | 11,039 | 11,099 | 11,259 | 11,183 | 11,131 | 10,983 | 10,949 | 10,933 | 10,873 | 10,886 | 10,924 | 10,853 | 10,831 | 10,847 | 10,817 | 10,752 | 10,745 | 10,668 | 10,683 | 10,595 | 10,511 | 10,533 | 10,407 | 10,311 | 10,133 | 10,083 | 10,109 | 9,996 | 9,808 | 9,711 | 9,567 | 9,480 | 9,157 | 8,934 | 8,831 | 9,028 | 9,237 | 9,453 | 9,288 | 9,518 | 9,710 | 9,823 | 9,914 | 9,888 | 9,800 | 9,861 | 9,647 | 9,623 | 9,745 | 9,844 | 9,794 | 9,956 | 9,852 | 10,000 | |||||||
| C000107256 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | FLRN | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 12,353 | 12,303 | 12,232 | 12,168 | 12,103 | 12,020 | 11,957 | 11,884 | 11,817 | 11,772 | 11,709 | 11,649 | 11,589 | 11,512 | 11,446 | 11,340 | 11,389 | 11,309 | 11,224 | 11,152 | 11,090 | 11,059 | 11,072 | 11,009 | 10,927 | 11,035 | 11,049 | 11,049 | 11,073 | 11,079 | 11,075 | 11,076 | 11,084 | 11,088 | 11,081 | 11,078 | 11,078 | 11,072 | 11,059 | 11,059 | 11,062 | 11,057 | 11,036 | 11,029 | 11,017 | 11,011 | 11,008 | 10,987 | 10,950 | 10,887 | 10,794 | 10,523 | 10,978 | 10,980 | 10,951 | 10,923 | 10,895 | 10,870 | 10,834 | 10,810 | 10,783 | 10,749 | 10,730 | 10,691 | 10,652 | 10,609 | 10,524 | 10,558 | 10,575 | 10,577 | 10,553 | 10,523 | 10,490 | 10,482 | 10,464 | 10,431 | 10,424 | 10,419 | 10,380 | 10,368 | 10,361 | 10,335 | 10,314 | 10,312 | 10,291 | 10,278 | 10,271 | 10,255 | 10,237 | 10,223 | 10,200 | 10,198 | 10,167 | 10,174 | 10,122 | 10,123 | 10,081 | 10,083 | 10,078 | 10,033 | 10,009 | 10,016 | 10,026 | 10,017 | 9,995 | 10,000 | 9,988 | 10,028 | 10,056 | 10,058 | 10,043 | 10,025 | 9,997 | 9,976 | 9,980 | 10,006 | 10,021 | 10,013 | 10,015 | 10,011 | 10,000 | |||||||
| C000234530 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | LQIG | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,549 | 10,488 | 10,270 | 10,584 | 10,432 | 10,612 | 10,642 | 10,211 | 9,537 | 9,739 | 10,054 | 10,163 | 10,151 | 10,079 | 10,237 | 10,186 | 9,810 | 10,207 | 9,721 | 9,863 | 9,305 | 9,355 | 9,871 | 10,300 | 9,888 | 10,252 | $ 10,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000047967 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | SPIP | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,946 | 11,858 | 11,652 | 11,849 | 11,775 | 11,904 | 11,863 | 11,577 | 11,248 | 11,342 | 11,570 | 11,683 | 11,674 | 11,708 | 11,853 | 11,848 | 11,520 | 11,675 | 11,435 | 11,582 | 11,363 | 11,208 | 12,038 | 12,379 | 11,836 | 12,236 | 12,374 | 12,673 | 12,934 | 12,818 | 13,104 | 13,072 | 12,940 | 12,795 | 12,896 | 12,914 | 12,566 | 12,464 | 12,336 | 12,156 | 12,188 | 12,416 | 12,387 | 12,241 | 12,088 | 12,174 | 12,221 | 12,119 | 11,824 | 11,699 | 11,626 | 11,324 | 11,492 | 11,377 | 11,121 | 11,077 | 11,053 | 11,056 | 11,191 | 10,914 | 10,875 | 10,792 | 10,600 | 10,575 | 10,369 | 10,389 | 10,236 | 10,174 | 10,129 | 10,292 | 10,398 | 10,329 | 10,383 | 10,319 | 10,287 | 10,297 | 10,196 | 10,306 | 10,404 | 10,295 | 10,280 | 10,255 | 10,333 | 10,222 | 10,166 | 10,266 | 10,267 | 10,215 | 10,221 | 10,172 | 10,067 | 10,093 | 10,318 | 10,382 | 10,298 | 10,337 | 10,261 | 10,018 | 10,099 | 10,074 | 9,893 | 9,784 | 9,629 | 9,722 | 9,736 | 9,700 | 9,756 | 9,858 | 9,804 | 9,907 | 10,020 | 9,971 | 10,014 | 10,171 | 9,833 | 9,916 | 9,884 | 9,800 | 10,075 | 10,005 | 10,000 | |||||||
| C000055009 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | SPTS | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,173 | 11,109 | 11,031 | 11,072 | 11,038 | 11,082 | 11,044 | 10,919 | 10,803 | 10,769 | 10,778 | 10,731 | 10,696 | 10,753 | 10,790 | 10,765 | 10,589 | 10,673 | 10,596 | 10,577 | 10,504 | 10,519 | 10,646 | 10,731 | 10,686 | 10,751 | 10,688 | 10,741 | 10,897 | 10,939 | 11,017 | 11,042 | 11,047 | 11,082 | 11,095 | 11,096 | 11,077 | 11,097 | 11,084 | 11,083 | 11,085 | 11,090 | 11,090 | 11,084 | 11,081 | 11,082 | 11,083 | 11,086 | 11,075 | 11,070 | 11,064 | 11,052 | 10,909 | 10,811 | 10,747 | 10,727 | 10,734 | 10,698 | 10,711 | 10,626 | 10,636 | 10,582 | 10,505 | 10,486 | 10,420 | 10,413 | 10,385 | 10,300 | 10,262 | 10,250 | 10,260 | 10,225 | 10,232 | 10,228 | 10,189 | 10,228 | 10,197 | 10,212 | 10,270 | 10,274 | 10,302 | 10,315 | 10,347 | 10,319 | 10,289 | 10,313 | 10,280 | 10,250 | 10,240 | 10,222 | 10,211 | 10,209 | 10,313 | 10,335 | 10,321 | 10,353 | 10,358 | 10,255 | 10,271 | 10,279 | 10,251 | 10,223 | 10,119 | 10,137 | 10,163 | 10,192 | 10,141 | 10,134 | 10,127 | 10,137 | 10,134 | 10,131 | 10,084 | 10,139 | 10,036 | 10,069 | 10,069 | 9,997 | 10,014 | 9,985 | 10,000 | |||||||
| C000047965 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | SPTI | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,984 | 10,875 | 10,721 | 10,944 | 10,885 | 11,057 | 11,026 | 10,747 | 10,420 | 10,506 | 10,687 | 10,709 | 10,718 | 10,849 | 10,966 | 10,890 | 10,566 | 10,832 | 10,577 | 10,657 | 10,396 | 10,471 | 10,823 | 11,150 | 10,927 | 11,019 | 10,936 | 11,206 | 11,594 | 11,645 | 11,837 | 11,883 | 11,826 | 11,914 | 12,032 | 12,067 | 11,923 | 11,909 | 11,867 | 11,795 | 11,939 | 12,099 | 12,146 | 12,147 | 12,125 | 12,203 | 12,185 | 12,231 | 12,176 | 12,160 | 12,124 | 12,110 | 11,771 | 11,526 | 11,287 | 11,314 | 11,365 | 11,331 | 11,413 | 11,135 | 11,147 | 11,041 | 10,817 | 10,831 | 10,645 | 10,672 | 10,612 | 10,407 | 10,309 | 10,311 | 10,390 | 10,313 | 10,347 | 10,343 | 10,266 | 10,322 | 10,273 | 10,306 | 10,408 | 10,409 | 10,439 | 10,451 | 10,516 | 10,454 | 10,419 | 10,447 | 10,405 | 10,352 | 10,346 | 10,318 | 10,292 | 10,295 | 10,485 | 10,538 | 10,516 | 10,576 | 10,571 | 10,414 | 10,430 | 10,438 | 10,418 | 10,370 | 10,235 | 10,224 | 10,262 | 10,293 | 10,213 | 10,227 | 10,166 | 10,216 | 10,211 | 10,223 | 10,156 | 10,266 | 10,084 | 10,119 | 10,073 | 10,003 | 10,050 | 9,972 | 10,000 | |||||||
| C000047966 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | SPTL | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,568 | 10,396 | 10,112 | 10,749 | 10,641 | 10,897 | 11,096 | 10,257 | 9,390 | 9,878 | 10,659 | 10,960 | 11,204 | 11,206 | 11,523 | 11,472 | 10,954 | 11,513 | 10,740 | 10,994 | 10,276 | 10,862 | 11,805 | 12,352 | 12,036 | 12,206 | 12,451 | 13,687 | 14,430 | 14,647 | 15,208 | 15,502 | 15,116 | 14,822 | 15,264 | 15,296 | 14,758 | 14,166 | 14,190 | 13,865 | 14,591 | 15,455 | 16,006 | 16,197 | 15,948 | 16,495 | 16,362 | 17,199 | 16,504 | 16,436 | 16,731 | 16,577 | 15,555 | 14,594 | 13,577 | 14,013 | 14,069 | 14,220 | 14,593 | 13,193 | 13,146 | 13,018 | 12,203 | 12,441 | 11,804 | 11,954 | 11,918 | 11,269 | 11,070 | 11,388 | 11,708 | 11,557 | 11,720 | 11,649 | 11,432 | 11,669 | 11,353 | 11,698 | 12,098 | 11,879 | 11,799 | 11,804 | 12,072 | 11,688 | 11,759 | 11,681 | 11,473 | 11,299 | 11,369 | 11,195 | 11,116 | 11,160 | 12,119 | 12,652 | 12,823 | 12,961 | 12,703 | 11,922 | 11,840 | 11,913 | 11,909 | 11,587 | 11,014 | 11,038 | 11,130 | 11,177 | 10,972 | 11,044 | 10,596 | 10,996 | 11,249 | 11,602 | 11,489 | 12,168 | 11,168 | 10,858 | 10,555 | 10,290 | 10,491 | 10,057 | 10,000 | |||||||
| C000055010 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | SPSB | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 12,020 | 11,966 | 11,873 | 11,902 | 11,833 | 11,862 | 11,815 | 11,656 | 11,479 | 11,453 | 11,469 | 11,437 | 11,372 | 11,375 | 11,398 | 11,344 | 11,228 | 11,306 | 11,184 | 11,158 | 11,008 | 11,026 | 11,176 | 11,278 | 11,168 | 11,270 | 11,190 | 11,277 | 11,412 | 11,470 | 11,567 | 11,551 | 11,581 | 11,624 | 11,626 | 11,625 | 11,611 | 11,620 | 11,602 | 11,585 | 11,588 | 11,590 | 11,594 | 11,568 | 11,531 | 11,522 | 11,527 | 11,506 | 11,462 | 11,386 | 11,263 | 11,002 | 11,278 | 11,220 | 11,161 | 11,121 | 11,111 | 11,072 | 11,056 | 10,979 | 10,969 | 10,893 | 10,835 | 10,805 | 10,733 | 10,704 | 10,613 | 10,539 | 10,525 | 10,530 | 10,531 | 10,485 | 10,453 | 10,455 | 10,420 | 10,414 | 10,401 | 10,434 | 10,462 | 10,448 | 10,476 | 10,470 | 10,471 | 10,449 | 10,409 | 10,404 | 10,378 | 10,353 | 10,342 | 10,317 | 10,300 | 10,274 | 10,318 | 10,320 | 10,306 | 10,315 | 10,284 | 10,217 | 10,226 | 10,189 | 10,125 | 10,082 | 10,086 | 10,119 | 10,100 | 10,081 | 10,046 | 10,080 | 10,061 | 10,073 | 10,077 | 10,080 | 10,061 | 10,047 | 10,002 | 10,022 | 10,019 | 9,993 | 10,009 | 9,984 | 10,000 | |||||||
| C000066454 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | SPIB | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 12,485 | 12,407 | 12,231 | 12,399 | 12,283 | 12,392 | 12,362 | 12,025 | 11,585 | 11,676 | 11,848 | 11,868 | 11,805 | 11,812 | 11,911 | 11,833 | 11,598 | 11,842 | 11,527 | 11,561 | 11,171 | 11,220 | 11,607 | 11,899 | 11,610 | 11,840 | 11,719 | 12,086 | 12,389 | 12,521 | 12,754 | 12,738 | 12,768 | 12,826 | 12,905 | 12,931 | 12,834 | 12,772 | 12,724 | 12,630 | 12,730 | 12,852 | 12,918 | 12,845 | 12,690 | 12,694 | 12,723 | 12,715 | 12,544 | 12,337 | 12,098 | 11,608 | 12,264 | 12,163 | 11,993 | 11,941 | 11,924 | 11,868 | 11,889 | 11,676 | 11,662 | 11,476 | 11,354 | 11,314 | 11,129 | 11,105 | 10,881 | 10,761 | 10,780 | 10,842 | 10,859 | 10,801 | 10,756 | 10,754 | 10,710 | 10,759 | 10,751 | 10,855 | 10,938 | 10,910 | 10,944 | 10,921 | 10,946 | 10,895 | 10,817 | 10,818 | 10,739 | 10,653 | 10,663 | 10,583 | 10,537 | 10,500 | 10,706 | 10,753 | 10,727 | 10,731 | 10,670 | 10,479 | 10,504 | 10,417 | 10,257 | 10,182 | 10,131 | 10,214 | 10,212 | 10,180 | 10,110 | 10,157 | 10,113 | 10,208 | 10,236 | 10,238 | 10,185 | 10,255 | 10,078 | 10,093 | 10,044 | 9,967 | 10,044 | 9,958 | 10,000 | |||||||
| C000066455 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | SPLB | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 12,575 | 12,541 | 12,172 | 12,798 | 12,551 | 12,907 | 13,005 | 12,159 | 10,940 | 11,414 | 12,058 | 12,316 | 12,341 | 12,118 | 12,469 | 12,375 | 11,845 | 12,569 | 11,689 | 11,968 | 10,909 | 11,133 | 12,152 | 12,861 | 12,208 | 12,809 | 12,572 | 13,955 | 14,431 | 14,920 | 15,711 | 15,834 | 15,786 | 15,503 | 15,877 | 15,944 | 15,601 | 15,002 | 14,923 | 14,680 | 15,047 | 15,572 | 16,030 | 16,032 | 15,101 | 15,263 | 15,292 | 15,901 | 15,077 | 14,644 | 14,417 | 13,547 | 14,894 | 14,669 | 14,125 | 14,104 | 13,962 | 13,938 | 14,130 | 13,306 | 13,197 | 12,675 | 12,381 | 12,321 | 11,799 | 11,877 | 11,437 | 11,139 | 11,217 | 11,621 | 11,655 | 11,677 | 11,465 | 11,576 | 11,550 | 11,840 | 11,703 | 12,203 | 12,352 | 12,061 | 12,026 | 11,935 | 11,935 | 11,810 | 11,707 | 11,598 | 11,337 | 11,152 | 11,229 | 11,014 | 10,991 | 10,745 | 11,376 | 11,667 | 11,763 | 11,702 | 11,409 | 10,862 | 10,936 | 10,638 | 10,081 | 9,931 | 9,913 | 10,011 | 10,140 | 9,989 | 9,893 | 10,079 | 9,847 | 10,206 | 10,500 | 10,765 | 10,803 | 11,083 | 10,472 | 10,368 | 10,265 | 10,077 | 10,338 | 10,044 | 10,000 | |||||||
| C000099139 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | SPBO | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 12,476 | 12,413 | 12,173 | 12,489 | 12,325 | 12,505 | 12,518 | 12,021 | 11,319 | 11,534 | 11,861 | 11,953 | 11,932 | 11,846 | 12,034 | 11,948 | 11,601 | 12,000 | 11,496 | 11,613 | 11,002 | 11,098 | 11,703 | 12,127 | 11,708 | 12,076 | 11,905 | 12,604 | 12,963 | 13,214 | 13,628 | 13,639 | 13,665 | 13,603 | 13,783 | 13,820 | 13,642 | 13,397 | 13,329 | 13,187 | 13,362 | 13,615 | 13,816 | 13,774 | 13,334 | 13,387 | 13,425 | 13,628 | 13,220 | 12,955 | 12,708 | 12,163 | 12,945 | 12,819 | 12,532 | 12,490 | 12,422 | 12,393 | 12,469 | 12,066 | 12,015 | 11,734 | 11,565 | 11,516 | 11,162 | 11,184 | 10,925 | 10,749 | 10,748 | 10,894 | 10,934 | 10,906 | 10,844 | 10,884 | 10,819 | 10,935 | 10,902 | 11,042 | 11,137 | 11,086 | 11,086 | 11,066 | 11,097 | 11,024 | 10,934 | 10,915 | 10,813 | 10,721 | 10,733 | 10,618 | 10,544 | 10,526 | 10,814 | 10,880 | 10,903 | 10,892 | 10,747 | 10,504 | 10,494 | 10,377 | 10,164 | 10,098 | 10,036 | 10,155 | 10,157 | 10,108 | 10,003 | 10,109 | 10,014 | 10,186 | 10,311 | 10,387 | 10,378 | 10,495 | 10,193 | 10,133 | 10,121 | 10,036 | 10,231 | 9,950 | 10,000 | |||||||
| C000066453 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | SPMB | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,781 | 10,642 | 10,442 | 10,761 | 10,650 | 10,846 | 10,875 | 10,433 | 9,909 | 10,131 | 10,459 | 10,549 | 10,571 | 10,601 | 10,681 | 10,623 | 10,415 | 10,711 | 10,351 | 10,420 | 10,005 | 10,131 | 10,682 | 11,054 | 10,718 | 10,870 | 10,759 | 11,149 | 11,459 | 11,579 | 11,760 | 11,771 | 11,777 | 11,819 | 11,858 | 11,871 | 11,807 | 11,805 | 11,843 | 11,765 | 11,843 | 11,948 | 11,934 | 11,912 | 11,904 | 11,916 | 11,923 | 11,923 | 11,885 | 11,907 | 11,906 | 11,768 | 11,669 | 11,555 | 11,463 | 11,442 | 11,436 | 11,407 | 11,391 | 11,270 | 11,262 | 11,149 | 11,029 | 11,030 | 10,877 | 10,874 | 10,792 | 10,612 | 10,520 | 10,575 | 10,620 | 10,570 | 10,556 | 10,564 | 10,484 | 10,566 | 10,497 | 10,567 | 10,690 | 10,682 | 10,674 | 10,691 | 10,706 | 10,641 | 10,590 | 10,643 | 10,570 | 10,521 | 10,525 | 10,484 | 10,472 | 10,460 | 10,677 | 10,714 | 10,679 | 10,684 | 10,634 | 10,581 | 10,562 | 10,550 | 10,536 | 10,480 | 10,345 | 10,349 | 10,368 | 10,360 | 10,317 | 10,302 | 10,204 | 10,288 | 10,343 | 10,328 | 10,297 | 10,284 | 10,183 | 10,239 | 10,137 | 10,014 | 10,036 | 9,945 | 10,000 | |||||||
| C000047971 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | SPAB | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,352 | 11,252 | 11,059 | 11,343 | 11,245 | 11,407 | 11,430 | 11,034 | 10,542 | 10,712 | 10,992 | 11,061 | 11,074 | 11,105 | 11,227 | 11,165 | 10,880 | 11,184 | 10,822 | 10,907 | 10,517 | 10,647 | 11,120 | 11,462 | 11,177 | 11,362 | 11,272 | 11,722 | 12,064 | 12,196 | 12,448 | 12,494 | 12,461 | 12,457 | 12,578 | 12,598 | 12,464 | 12,359 | 12,337 | 12,242 | 12,391 | 12,583 | 12,677 | 12,657 | 12,509 | 12,580 | 12,594 | 12,703 | 12,525 | 12,437 | 12,358 | 12,167 | 12,229 | 12,034 | 11,799 | 11,810 | 11,804 | 11,789 | 11,848 | 11,543 | 11,519 | 11,379 | 11,185 | 11,183 | 10,959 | 10,966 | 10,851 | 10,665 | 10,602 | 10,687 | 10,754 | 10,688 | 10,679 | 10,683 | 10,612 | 10,701 | 10,631 | 10,739 | 10,879 | 10,831 | 10,831 | 10,825 | 10,882 | 10,783 | 10,738 | 10,742 | 10,667 | 10,577 | 10,575 | 10,514 | 10,492 | 10,467 | 10,728 | 10,829 | 10,824 | 10,856 | 10,785 | 10,597 | 10,593 | 10,563 | 10,452 | 10,364 | 10,244 | 10,262 | 10,318 | 10,297 | 10,210 | 10,250 | 10,158 | 10,272 | 10,323 | 10,365 | 10,321 | 10,412 | 10,212 | 10,183 | 10,101 | 10,021 | 10,064 | 9,956 | 10,000 | |||||||
| C000113018 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | SPHY | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 14,816 | 14,740 | 14,511 | 14,678 | 14,512 | 14,474 | 14,425 | 13,957 | 13,339 | 13,466 | 13,686 | 13,650 | 13,473 | 13,222 | 13,354 | 13,300 | 13,055 | 13,262 | 12,787 | 12,976 | 12,572 | 12,188 | 12,681 | 13,118 | 12,364 | 13,257 | 13,098 | 13,645 | 13,803 | 13,931 | 14,305 | 13,999 | 14,151 | 14,181 | 14,176 | 14,103 | 14,064 | 13,855 | 13,831 | 13,703 | 13,591 | 13,548 | 13,542 | 13,250 | 12,775 | 12,663 | 12,789 | 12,695 | 12,139 | 12,023 | 11,556 | 10,985 | 12,500 | 12,662 | 12,691 | 12,408 | 12,345 | 12,348 | 12,251 | 12,225 | 12,149 | 11,850 | 12,046 | 11,916 | 11,678 | 11,601 | 11,197 | 11,226 | 11,254 | 11,439 | 11,432 | 11,361 | 11,222 | 11,261 | 11,261 | 11,304 | 11,367 | 11,510 | 11,576 | 11,490 | 11,534 | 11,516 | 11,474 | 11,371 | 11,321 | 11,302 | 11,167 | 11,075 | 11,020 | 10,968 | 10,797 | 10,624 | 10,892 | 10,932 | 10,893 | 10,724 | 10,547 | 10,363 | 10,363 | 10,105 | 9,750 | 9,654 | 9,662 | 9,904 | 10,028 | 9,843 | 9,939 | 10,010 | 10,004 | 10,185 | 10,195 | 10,234 | 10,253 | 10,194 | 10,025 | 9,987 | 10,084 | 9,909 | 10,118 | 9,905 | 10,000 | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 30,689 | 29,625 | 28,224 | 29,425 | 28,508 | 27,063 | 26,616 | 25,459 | 23,328 | 23,830 | 25,023 | 25,427 | 24,636 | 23,109 | 23,009 | 22,655 | 21,853 | 22,400 | 21,075 | 22,364 | 21,180 | 19,594 | 21,581 | 22,499 | 20,600 | 22,453 | 22,412 | 24,553 | 23,674 | 24,405 | 25,736 | 24,633 | 24,804 | 23,180 | 24,311 | 23,594 | 23,046 | 22,520 | 22,364 | 21,231 | 20,340 | 19,795 | 19,996 | 19,256 | 17,356 | 17,830 | 18,535 | 17,292 | 16,369 | 16,050 | 15,320 | 13,579 | 15,493 | 16,882 | 16,865 | 16,394 | 15,792 | 15,456 | 15,191 | 15,476 | 15,244 | 14,233 | 15,194 | 14,591 | 14,339 | 13,856 | 12,762 | 14,045 | 13,771 | 14,810 | 14,744 | 14,251 | 13,776 | 13,706 | 13,365 | 13,297 | 13,609 | 14,119 | 13,395 | 13,250 | 12,851 | 12,563 | 12,301 | 12,263 | 12,025 | 11,942 | 11,791 | 11,667 | 11,660 | 11,226 | 11,005 | 10,801 | 10,392 | 10,599 | 10,590 | 10,576 | 10,188 | 10,165 | 9,990 | 9,936 | 9,289 | 9,292 | 9,820 | 10,000 | 10,000 | |||||||||||||||||||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 33,292 | 32,138 | 30,619 | 31,922 | 30,927 | 29,359 | 28,874 | 27,619 | 25,308 | 25,852 | 27,146 | 27,585 | 26,726 | 25,070 | 24,961 | 24,578 | 23,707 | 24,300 | 22,864 | 24,261 | 22,977 | 21,256 | 23,413 | 24,408 | 22,348 | 24,358 | 24,314 | 26,636 | 25,683 | 26,475 | 27,920 | 26,723 | 26,909 | 25,147 | 26,374 | 25,596 | 25,002 | 24,431 | 24,262 | 23,033 | 22,066 | 21,474 | 21,693 | 20,890 | 18,829 | 19,343 | 20,107 | 18,759 | 17,758 | 17,411 | 16,620 | 14,731 | 16,807 | 18,315 | 18,296 | 17,785 | 17,132 | 16,767 | 16,480 | 16,789 | 16,537 | 15,441 | 16,483 | 15,829 | 15,555 | 15,032 | 13,845 | 15,237 | 14,939 | 16,067 | 15,995 | 15,461 | 14,945 | 14,869 | 14,499 | 14,426 | 14,764 | 15,317 | 14,532 | 14,374 | 13,942 | 13,630 | 13,345 | 13,304 | 13,046 | 12,955 | 12,791 | 12,657 | 12,650 | 12,178 | 11,938 | 11,718 | 11,274 | 11,498 | 11,489 | 11,474 | 11,053 | 11,027 | 10,838 | 10,780 | 10,077 | 10,080 | 10,653 | 10,849 | 10,813 | 10,003 | 10,285 | 10,944 | 10,737 | 10,942 | 10,801 | 10,725 | 10,860 | 10,267 | 10,557 | 10,581 | 10,311 | 10,065 | 10,245 | 9,838 | 10,000 | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 33,292 | 32,138 | 30,619 | 31,922 | 30,927 | 29,359 | 28,874 | 27,619 | 25,308 | 25,852 | 27,146 | 27,585 | 26,726 | 25,070 | 24,961 | 24,578 | 23,707 | 24,300 | 22,864 | 24,261 | 22,977 | 21,256 | 23,413 | 24,408 | 22,348 | 24,358 | 24,314 | 26,636 | 25,683 | 26,475 | 27,920 | 26,723 | 26,909 | 25,147 | 26,374 | 25,596 | 25,002 | 24,431 | 24,262 | 23,033 | 22,066 | 21,474 | 21,693 | 20,890 | 18,829 | 19,343 | 20,107 | 18,759 | 17,758 | 17,411 | 16,620 | 14,731 | 16,807 | 18,315 | 18,296 | 17,785 | 17,132 | 16,767 | 16,480 | 16,789 | 16,537 | 15,441 | 16,483 | 15,829 | 15,555 | 15,032 | 13,845 | 15,237 | 14,939 | 16,067 | 15,995 | 15,461 | 14,945 | 14,869 | 14,499 | 14,426 | 14,764 | 15,317 | 14,532 | 14,374 | 13,942 | 13,630 | 13,345 | 13,304 | 13,046 | 12,955 | 12,791 | 12,657 | 12,650 | 12,178 | 11,938 | 11,718 | 11,274 | 11,498 | 11,489 | 11,474 | 11,053 | 11,027 | 10,838 | 10,780 | 10,077 | 10,080 | 10,653 | 10,849 | 10,813 | 10,003 | 10,285 | 10,944 | 10,737 | 10,942 | 10,801 | 10,725 | 10,860 | 10,267 | 10,557 | 10,581 | 10,311 | 10,065 | 10,245 | 9,838 | 10,000 | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 33,292 | 32,138 | 30,619 | 31,922 | 30,927 | 29,359 | 28,874 | 27,619 | 25,308 | 25,852 | 27,146 | 27,585 | 26,726 | 25,070 | 24,961 | 24,578 | 23,707 | 24,300 | 22,864 | 24,261 | 22,977 | 21,256 | 23,413 | 24,408 | 22,348 | 24,358 | 24,314 | 26,636 | 25,683 | 26,475 | 27,920 | 26,723 | 26,909 | 25,147 | 26,374 | 25,596 | 25,002 | 24,431 | 24,262 | 23,033 | 22,066 | 21,474 | 21,693 | 20,890 | 18,829 | 19,343 | 20,107 | 18,759 | 17,758 | 17,411 | 16,620 | 14,731 | 16,807 | 18,315 | 18,296 | 17,785 | 17,132 | 16,767 | 16,480 | 16,789 | 16,537 | 15,441 | 16,483 | 15,829 | 15,555 | 15,032 | 13,845 | 15,237 | 14,939 | 16,067 | 15,995 | 15,461 | 14,945 | 14,869 | 14,499 | 14,426 | 14,764 | 15,317 | 14,532 | 14,374 | 13,942 | 13,630 | 13,345 | 13,304 | 13,046 | 12,955 | 12,791 | 12,657 | 12,650 | 12,178 | 11,938 | 11,718 | 11,274 | 11,498 | 11,489 | 11,474 | 11,053 | 11,027 | 10,838 | 10,780 | 10,077 | 10,080 | 10,653 | 10,849 | 10,813 | 10,003 | 10,285 | 10,944 | 10,737 | 10,942 | 10,801 | 10,725 | 10,860 | 10,267 | 10,557 | 10,581 | 10,311 | 10,065 | 10,245 | 9,838 | 10,000 | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 33,292 | 32,138 | 30,619 | 31,922 | 30,927 | 29,359 | 28,874 | 27,619 | 25,308 | 25,852 | 27,146 | 27,585 | 26,726 | 25,070 | 24,961 | 24,578 | 23,707 | 24,300 | 22,864 | 24,261 | 22,977 | 21,256 | 23,413 | 24,408 | 22,348 | 24,358 | 24,314 | 26,636 | 25,683 | 26,475 | 27,920 | 26,723 | 26,909 | 25,147 | 26,374 | 25,596 | 25,002 | 24,431 | 24,262 | 23,033 | 22,066 | 21,474 | 21,693 | 20,890 | 18,829 | 19,343 | 20,107 | 18,759 | 17,758 | 17,411 | 16,620 | 14,731 | 16,807 | 18,315 | 18,296 | 17,785 | 17,132 | 16,767 | 16,480 | 16,789 | 16,537 | 15,441 | 16,483 | 15,829 | 15,555 | 15,032 | 13,845 | 15,237 | 14,939 | 16,067 | 15,995 | 15,461 | 14,945 | 14,869 | 14,499 | 14,426 | 14,764 | 15,317 | 14,532 | 14,374 | 13,942 | 13,630 | 13,345 | 13,304 | 13,046 | 12,955 | 12,791 | 12,657 | 12,650 | 12,178 | 11,938 | 11,718 | 11,274 | 11,498 | 11,489 | 11,474 | 11,053 | 11,027 | 10,838 | 10,780 | 10,077 | 10,080 | 10,653 | 10,849 | 10,813 | 10,003 | 10,285 | 10,944 | 10,737 | 10,942 | 10,801 | 10,725 | 10,860 | 10,267 | 10,557 | 10,581 | 10,311 | 10,065 | 10,245 | 9,838 | 10,000 | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 33,292 | 32,138 | 30,619 | 31,922 | 30,927 | 29,359 | 28,874 | 27,619 | 25,308 | 25,852 | 27,146 | 27,585 | 26,726 | 25,070 | 24,961 | 24,578 | 23,707 | 24,300 | 22,864 | 24,261 | 22,977 | 21,256 | 23,413 | 24,408 | 22,348 | 24,358 | 24,314 | 26,636 | 25,683 | 26,475 | 27,920 | 26,723 | 26,909 | 25,147 | 26,374 | 25,596 | 25,002 | 24,431 | 24,262 | 23,033 | 22,066 | 21,474 | 21,693 | 20,890 | 18,829 | 19,343 | 20,107 | 18,759 | 17,758 | 17,411 | 16,620 | 14,731 | 16,807 | 18,315 | 18,296 | 17,785 | 17,132 | 16,767 | 16,480 | 16,789 | 16,537 | 15,441 | 16,483 | 15,829 | 15,555 | 15,032 | 13,845 | 15,237 | 14,939 | 16,067 | 15,995 | 15,461 | 14,945 | 14,869 | 14,499 | 14,426 | 14,764 | 15,317 | 14,532 | 14,374 | 13,942 | 13,630 | 13,345 | 13,304 | 13,046 | 12,955 | 12,791 | 12,657 | 12,650 | 12,178 | 11,938 | 11,718 | 11,274 | 11,498 | 11,489 | 11,474 | 11,053 | 11,027 | 10,838 | 10,780 | 10,077 | 10,080 | 10,653 | 10,849 | 10,813 | 10,003 | 10,285 | 10,944 | 10,737 | 10,942 | 10,801 | 10,725 | 10,860 | 10,267 | 10,557 | 10,581 | 10,311 | 10,065 | 10,245 | 9,838 | 10,000 | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 33,292 | 32,138 | 30,619 | 31,922 | 30,927 | 29,359 | 28,874 | 27,619 | 25,308 | 25,852 | 27,146 | 27,585 | 26,726 | 25,070 | 24,961 | 24,578 | 23,707 | 24,300 | 22,864 | 24,261 | 22,977 | 21,256 | 23,413 | 24,408 | 22,348 | 24,358 | 24,314 | 26,636 | 25,683 | 26,475 | 27,920 | 26,723 | 26,909 | 25,147 | 26,374 | 25,596 | 25,002 | 24,431 | 24,262 | 23,033 | 22,066 | 21,474 | 21,693 | 20,890 | 18,829 | 19,343 | 20,107 | 18,759 | 17,758 | 17,411 | 16,620 | 14,731 | 16,807 | 18,315 | 18,296 | 17,785 | 17,132 | 16,767 | 16,480 | 16,789 | 16,537 | 15,441 | 16,483 | 15,829 | 15,555 | 15,032 | 13,845 | 15,237 | 14,939 | 16,067 | 15,995 | 15,461 | 14,945 | 14,869 | 14,499 | 14,426 | 14,764 | 15,317 | 14,532 | 14,374 | 13,942 | 13,630 | 13,345 | 13,304 | 13,046 | 12,955 | 12,791 | 12,657 | 12,650 | 12,178 | 11,938 | 11,718 | 11,274 | 11,498 | 11,489 | 11,474 | 11,053 | 11,027 | 10,838 | 10,780 | 10,077 | 10,080 | 10,653 | 10,849 | 10,813 | 10,003 | 10,285 | 10,944 | 10,737 | 10,942 | 10,801 | 10,725 | 10,860 | 10,267 | 10,557 | 10,581 | 10,311 | 10,065 | 10,245 | 9,838 | 10,000 | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 33,292 | 32,138 | 30,619 | 31,922 | 30,927 | 29,359 | 28,874 | 27,619 | 25,308 | 25,852 | 27,146 | 27,585 | 26,726 | 25,070 | 24,961 | 24,578 | 23,707 | 24,300 | 22,864 | 24,261 | 22,977 | 21,256 | 23,413 | 24,408 | 22,348 | 24,358 | 24,314 | 26,636 | 25,683 | 26,475 | 27,920 | 26,723 | 26,909 | 25,147 | 26,374 | 25,596 | 25,002 | 24,431 | 24,262 | 23,033 | 22,066 | 21,474 | 21,693 | 20,890 | 18,829 | 19,343 | 20,107 | 18,759 | 17,758 | 17,411 | 16,620 | 14,731 | 16,807 | 18,315 | 18,296 | 17,785 | 17,132 | 16,767 | 16,480 | 16,789 | 16,537 | 15,441 | 16,483 | 15,829 | 15,555 | 15,032 | 13,845 | 15,237 | 14,939 | 16,067 | 15,995 | 15,461 | 14,945 | 14,869 | 14,499 | 14,426 | 14,764 | 15,317 | 14,532 | 14,374 | 13,942 | 13,630 | 13,345 | 13,304 | 13,046 | 12,955 | 12,791 | 12,657 | 12,650 | 12,178 | 11,938 | 11,718 | 11,274 | 11,498 | 11,489 | 11,474 | 11,053 | 11,027 | 10,838 | 10,780 | 10,077 | 10,080 | 10,653 | 10,849 | 10,813 | 10,003 | 10,285 | 10,944 | 10,737 | 10,942 | 10,801 | 10,725 | 10,860 | 10,267 | 10,557 | 10,581 | 10,311 | 10,065 | 10,245 | 9,838 | 10,000 | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 33,292 | 32,138 | 30,619 | 31,922 | 30,927 | 29,359 | 28,874 | 27,619 | 25,308 | 25,852 | 27,146 | 27,585 | 26,726 | 25,070 | 24,961 | 24,578 | 23,707 | 24,300 | 22,864 | 24,261 | 22,977 | 21,256 | 23,413 | 24,408 | 22,348 | 24,358 | 24,314 | 26,636 | 25,683 | 26,475 | 27,920 | 26,723 | 26,909 | 25,147 | 26,374 | 25,596 | 25,002 | 24,431 | 24,262 | 23,033 | 22,066 | 21,474 | 21,693 | 20,890 | 18,829 | 19,343 | 20,107 | 18,759 | 17,758 | 17,411 | 16,620 | 14,731 | 16,807 | 18,315 | 18,296 | 17,785 | 17,132 | 16,767 | 16,480 | 16,789 | 16,537 | 15,441 | 16,483 | 15,829 | 15,555 | 15,032 | 13,845 | 15,237 | 14,939 | 16,067 | 15,995 | 15,461 | 14,945 | 14,869 | 14,499 | 14,426 | 14,764 | 15,317 | 14,532 | 14,374 | 13,942 | 13,630 | 13,345 | 13,304 | 13,046 | 12,955 | 12,791 | 12,657 | 12,650 | 12,178 | 11,938 | 11,718 | 11,274 | 11,498 | 11,489 | 11,474 | 11,053 | 11,027 | 10,838 | 10,780 | 10,077 | 10,080 | 10,653 | 10,849 | 10,813 | 10,003 | 10,285 | 10,944 | 10,737 | 10,942 | 10,801 | 10,725 | 10,860 | 10,267 | 10,557 | 10,581 | 10,311 | 10,065 | 10,245 | 9,838 | 10,000 | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 33,292 | 32,138 | 30,619 | 31,922 | 30,927 | 29,359 | 28,874 | 27,619 | 25,308 | 25,852 | 27,146 | 27,585 | 26,726 | 25,070 | 24,961 | 24,578 | 23,707 | 24,300 | 22,864 | 24,261 | 22,977 | 21,256 | 23,413 | 24,408 | 22,348 | 24,358 | 24,314 | 26,636 | 25,683 | 26,475 | 27,920 | 26,723 | 26,909 | 25,147 | 26,374 | 25,596 | 25,002 | 24,431 | 24,262 | 23,033 | 22,066 | 21,474 | 21,693 | 20,890 | 18,829 | 19,343 | 20,107 | 18,759 | 17,758 | 17,411 | 16,620 | 14,731 | 16,807 | 18,315 | 18,296 | 17,785 | 17,132 | 16,767 | 16,480 | 16,789 | 16,537 | 15,441 | 16,483 | 15,829 | 15,555 | 15,032 | 13,845 | 15,237 | 14,939 | 16,067 | 15,995 | 15,461 | 14,945 | 14,869 | 14,499 | 14,426 | 14,764 | 15,317 | 14,532 | 14,374 | 13,942 | 13,630 | 13,345 | 13,304 | 13,046 | 12,955 | 12,791 | 12,657 | 12,650 | 12,178 | 11,938 | 11,718 | 11,274 | 11,498 | 11,489 | 11,474 | 11,053 | 11,027 | 10,838 | 10,780 | 10,077 | 10,080 | 10,653 | 10,849 | 10,813 | 10,003 | 10,285 | 10,944 | 10,737 | 10,942 | 10,801 | 10,725 | 10,860 | 10,267 | 10,557 | 10,581 | 10,311 | 10,065 | 10,245 | 9,838 | 10,000 | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 33,292 | 32,138 | 30,619 | 31,922 | 30,927 | 29,359 | 28,874 | 27,619 | 25,308 | 25,852 | 27,146 | 27,585 | 26,726 | 25,070 | 24,961 | 24,578 | 23,707 | 24,300 | 22,864 | 24,261 | 22,977 | 21,256 | 23,413 | 24,408 | 22,348 | 24,358 | 24,314 | 26,636 | 25,683 | 26,475 | 27,920 | 26,723 | 26,909 | 25,147 | 26,374 | 25,596 | 25,002 | 24,431 | 24,262 | 23,033 | 22,066 | 21,474 | 21,693 | 20,890 | 18,829 | 19,343 | 20,107 | 18,759 | 17,758 | 17,411 | 16,620 | 14,731 | 16,807 | 18,315 | 18,296 | 17,785 | 17,132 | 16,767 | 16,480 | 16,789 | 16,537 | 15,441 | 16,483 | 15,829 | 15,555 | 15,032 | 13,845 | 15,237 | 14,939 | 16,067 | 15,995 | 15,461 | 14,945 | 14,869 | 14,499 | 14,426 | 14,764 | 15,317 | 14,532 | 14,374 | 13,942 | 13,630 | 13,345 | 13,304 | 13,046 | 12,955 | 12,791 | 12,657 | 12,650 | 12,178 | 11,938 | 11,718 | 11,274 | 11,498 | 11,489 | 11,474 | 11,053 | 11,027 | 10,838 | 10,780 | 10,077 | 10,080 | 10,653 | 10,849 | 10,813 | 10,003 | 10,285 | 10,944 | 10,737 | 10,942 | 10,801 | 10,725 | 10,860 | 10,267 | 10,557 | 10,581 | 10,311 | 10,065 | 10,245 | 9,838 | 10,000 | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 33,292 | 32,138 | 30,619 | 31,922 | 30,927 | 29,359 | 28,874 | 27,619 | 25,308 | 25,852 | 27,146 | 27,585 | 26,726 | 25,070 | 24,961 | 24,578 | 23,707 | 24,300 | 22,864 | 24,261 | 22,977 | 21,256 | 23,413 | 24,408 | 22,348 | 24,358 | 24,314 | 26,636 | 25,683 | 26,475 | 27,920 | 26,723 | 26,909 | 25,147 | 26,374 | 25,596 | 25,002 | 24,431 | 24,262 | 23,033 | 22,066 | 21,474 | 21,693 | 20,890 | 18,829 | 19,343 | 20,107 | 18,759 | 17,758 | 17,411 | 16,620 | 14,731 | 16,807 | 18,315 | 18,296 | 17,785 | 17,132 | 16,767 | 16,480 | 16,789 | 16,537 | 15,441 | 16,483 | 15,829 | 15,555 | 15,032 | 13,845 | 15,237 | 14,939 | 16,067 | 15,995 | 15,461 | 14,945 | 14,869 | 14,499 | 14,426 | 14,764 | 15,317 | 14,532 | 14,374 | 13,942 | 13,630 | 13,345 | 13,304 | 13,046 | 12,955 | 12,791 | 12,657 | 12,650 | 12,178 | 11,938 | 11,718 | 11,274 | 11,498 | 11,489 | 11,474 | 11,053 | 11,027 | 10,838 | 10,780 | 10,077 | 10,080 | 10,653 | 10,849 | 10,813 | 10,003 | 10,285 | 10,944 | 10,737 | 10,942 | 10,801 | 10,725 | 10,860 | 10,267 | 10,557 | 10,581 | 10,311 | 10,065 | 10,245 | 9,838 | 10,000 | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 33,292 | 32,138 | 30,619 | 31,922 | 30,927 | 29,359 | 28,874 | 27,619 | 25,308 | 25,852 | 27,146 | 27,585 | 26,726 | 25,070 | 24,961 | 24,578 | 23,707 | 24,300 | 22,864 | 24,261 | 22,977 | 21,256 | 23,413 | 24,408 | 22,348 | 24,358 | 24,314 | 26,636 | 25,683 | 26,475 | 27,920 | 26,723 | 26,909 | 25,147 | 26,374 | 25,596 | 25,002 | 24,431 | 24,262 | 23,033 | 22,066 | 21,474 | 21,693 | 20,890 | 18,829 | 19,343 | 20,107 | 18,759 | 17,758 | 17,411 | 16,620 | 14,731 | 16,807 | 18,315 | 18,296 | 17,785 | 17,132 | 16,767 | 16,480 | 16,789 | 16,537 | 15,441 | 16,483 | 15,829 | 15,555 | 15,032 | 13,845 | 15,237 | 14,939 | 16,067 | 15,995 | 15,461 | 14,945 | 14,869 | 14,499 | 14,426 | 14,764 | 15,317 | 14,532 | 14,374 | 13,942 | 13,630 | 13,345 | 13,304 | 13,046 | 12,955 | 12,791 | 12,657 | 12,650 | 12,178 | 11,938 | 11,718 | 11,274 | 11,498 | 11,489 | 11,474 | 11,053 | 11,027 | 10,838 | 10,780 | 10,077 | 10,080 | 10,653 | 10,849 | 10,813 | 10,003 | 10,285 | 10,944 | 10,737 | 10,942 | 10,801 | 10,725 | 10,860 | 10,267 | 10,557 | 10,581 | 10,311 | 10,065 | 10,245 | 9,838 | 10,000 | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 33,292 | 32,138 | 30,619 | 31,922 | 30,927 | 29,359 | 28,874 | 27,619 | 25,308 | 25,852 | 27,146 | 27,585 | 26,726 | 25,070 | 24,961 | 24,578 | 23,707 | 24,300 | 22,864 | 24,261 | 22,977 | 21,256 | 23,413 | 24,408 | 22,348 | 24,358 | 24,314 | 26,636 | 25,683 | 26,475 | 27,920 | 26,723 | 26,909 | 25,147 | 26,374 | 25,596 | 25,002 | 24,431 | 24,262 | 23,033 | 22,066 | 21,474 | 21,693 | 20,890 | 18,829 | 19,343 | 20,107 | 18,759 | 17,758 | 17,411 | 16,620 | 14,731 | 16,807 | 18,315 | 18,296 | 17,785 | 17,132 | 16,767 | 16,480 | 16,789 | 16,537 | 15,441 | 16,483 | 15,829 | 15,555 | 15,032 | 13,845 | 15,237 | 14,939 | 16,067 | 15,995 | 15,461 | 14,945 | 14,869 | 14,499 | 14,426 | 14,764 | 15,317 | 14,532 | 14,374 | 13,942 | 13,630 | 13,345 | 13,304 | 13,046 | 12,955 | 12,791 | 12,657 | 12,650 | 12,178 | 11,938 | 11,718 | 11,274 | 11,498 | 11,489 | 11,474 | 11,053 | 11,027 | 10,838 | 10,780 | 10,077 | 10,080 | 10,653 | 10,849 | 10,813 | 10,003 | 10,285 | 10,944 | 10,737 | 10,942 | 10,801 | 10,725 | 10,860 | 10,267 | 10,557 | 10,581 | 10,311 | 10,065 | 10,245 | 9,838 | 10,000 | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 33,292 | 32,138 | 30,619 | 31,922 | 30,927 | 29,359 | 28,874 | 27,619 | 25,308 | 25,852 | 27,146 | 27,585 | 26,726 | 25,070 | 24,961 | 24,578 | 23,707 | 24,300 | 22,864 | 24,261 | 22,977 | 21,256 | 23,413 | 24,408 | 22,348 | 24,358 | 24,314 | 26,636 | 25,683 | 26,475 | 27,920 | 26,723 | 26,909 | 25,147 | 26,374 | 25,596 | 25,002 | 24,431 | 24,262 | 23,033 | 22,066 | 21,474 | 21,693 | 20,890 | 18,829 | 19,343 | 20,107 | 18,759 | 17,758 | 17,411 | 16,620 | 14,731 | 16,807 | 18,315 | 18,296 | 17,785 | 17,132 | 16,767 | 16,480 | 16,789 | 16,537 | 15,441 | 16,483 | 15,829 | 15,555 | 15,032 | 13,845 | 15,237 | 14,939 | 16,067 | 15,995 | 15,461 | 14,945 | 14,869 | 14,499 | 14,426 | 14,764 | 15,317 | 14,532 | 14,374 | 13,942 | 13,630 | 13,345 | 13,304 | 13,046 | 12,955 | 12,791 | 12,657 | 12,650 | 12,178 | 11,938 | 11,718 | 11,274 | 11,498 | 11,489 | 11,474 | 11,053 | 11,027 | 10,838 | 10,780 | 10,077 | 10,080 | 10,653 | 10,849 | 10,813 | 10,003 | 10,285 | 10,944 | 10,737 | 10,942 | 10,801 | 10,725 | 10,860 | 10,267 | 10,557 | 10,581 | 10,311 | 10,065 | 10,245 | 9,838 | 10,000 | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 30,529 | 29,470 | 28,077 | 29,272 | 28,359 | 26,922 | 26,477 | 25,326 | 23,207 | 23,705 | 24,892 | 25,295 | 24,508 | 22,989 | 22,889 | 22,537 | 21,739 | 22,283 | 20,966 | 22,247 | 21,070 | 19,492 | 21,469 | 22,382 | 20,492 | 22,336 | 22,295 | 24,425 | 23,551 | 24,278 | 25,602 | 24,504 | 24,675 | 23,060 | 24,184 | 23,471 | 22,926 | 22,403 | 22,248 | 21,121 | 20,234 | 19,691 | 19,892 | 19,156 | 17,266 | 17,737 | 18,438 | 17,202 | 16,283 | 15,966 | 15,240 | 13,508 | 15,412 | 16,794 | 16,777 | 16,309 | 15,710 | 15,375 | 15,112 | 15,395 | 15,164 | 14,159 | 15,115 | 14,515 | 14,264 | 13,784 | 12,696 | 13,972 | 13,699 | 14,733 | 14,667 | 14,177 | 13,704 | 13,635 | 13,296 | 13,228 | 13,538 | 14,045 | 13,326 | 13,181 | 12,784 | 12,498 | 12,237 | 12,200 | 11,963 | 11,880 | 11,729 | 11,606 | 11,599 | 11,167 | 10,947 | 10,745 | 10,338 | 10,543 | 10,535 | 10,521 | 10,135 | 10,112 | 9,938 | 9,885 | 9,241 | 9,243 | 9,769 | 9,948 | 9,915 | 9,173 | 9,431 | 10,035 | 9,845 | 10,034 | 9,904 | 10,000 | ||||||||||||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 33,292 | 32,138 | 30,619 | 31,922 | 30,927 | 29,359 | 28,874 | 27,619 | 25,308 | 25,852 | 27,146 | 27,585 | 26,726 | 25,070 | 24,961 | 24,578 | 23,707 | 24,300 | 22,864 | 24,261 | 22,977 | 21,256 | 23,413 | 24,408 | 22,348 | 24,358 | 24,314 | 26,636 | 25,683 | 26,475 | 27,920 | 26,723 | 26,909 | 25,147 | 26,374 | 25,596 | 25,002 | 24,431 | 24,262 | 23,033 | 22,066 | 21,474 | 21,693 | 20,890 | 18,829 | 19,343 | 20,107 | 18,759 | 17,758 | 17,411 | 16,620 | 14,731 | 16,807 | 18,315 | 18,296 | 17,785 | 17,132 | 16,767 | 16,480 | 16,789 | 16,537 | 15,441 | 16,483 | 15,829 | 15,555 | 15,032 | 13,845 | 15,237 | 14,939 | 16,067 | 15,995 | 15,461 | 14,945 | 14,869 | 14,499 | 14,426 | 14,764 | 15,317 | 14,532 | 14,374 | 13,942 | 13,630 | 13,345 | 13,304 | 13,046 | 12,955 | 12,791 | 12,657 | 12,650 | 12,178 | 11,938 | 11,718 | 11,274 | 11,498 | 11,489 | 11,474 | 11,053 | 11,027 | 10,838 | 10,780 | 10,077 | 10,080 | 10,653 | 10,849 | 10,813 | 10,003 | 10,285 | 10,944 | 10,737 | 10,942 | 10,801 | 10,725 | 10,860 | 10,267 | 10,557 | 10,581 | 10,311 | 10,065 | 10,245 | 9,838 | 10,000 | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 33,916 | 32,740 | 31,192 | 32,520 | 31,506 | 29,909 | 29,415 | 28,136 | 25,782 | 26,336 | 27,654 | 28,102 | 27,227 | 25,539 | 25,429 | 25,038 | 24,151 | 24,755 | 23,292 | 24,716 | 23,408 | 21,655 | 23,851 | 24,865 | 22,766 | 24,814 | 24,769 | 27,135 | 26,164 | 26,971 | 28,443 | 27,223 | 27,413 | 25,618 | 26,868 | 26,075 | 25,470 | 24,889 | 24,716 | 23,464 | 22,480 | 21,876 | 22,099 | 21,281 | 19,182 | 19,706 | 20,484 | 19,110 | 18,090 | 17,737 | 16,931 | 15,007 | 17,122 | 18,658 | 18,639 | 18,118 | 17,453 | 17,081 | 16,789 | 17,103 | 16,847 | 15,730 | 16,792 | 16,126 | 15,847 | 15,313 | 14,104 | 15,522 | 15,219 | 16,368 | 16,295 | 15,750 | 15,225 | 15,147 | 14,771 | 14,696 | 15,040 | 15,604 | 14,804 | 14,643 | 14,203 | 13,885 | 13,595 | 13,553 | 13,290 | 13,198 | 13,031 | 12,894 | 12,886 | 12,406 | 12,162 | 11,937 | 11,485 | 11,713 | 11,704 | 11,689 | 11,260 | 11,234 | 11,041 | 10,981 | 10,266 | 10,269 | 10,000 | |||||||||||||||||||||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 31,821 | 30,718 | 29,265 | 30,511 | 29,560 | 28,061 | 27,597 | 26,398 | 24,189 | 24,709 | 25,946 | 26,365 | 25,545 | 23,962 | 23,858 | 23,491 | 22,659 | 23,226 | 21,853 | 23,189 | 21,962 | 20,317 | 22,378 | 23,329 | 21,360 | 23,281 | 23,239 | 25,459 | 24,547 | 25,305 | 26,686 | 25,541 | 25,719 | 24,035 | 25,208 | 24,464 | 23,896 | 23,351 | 23,189 | 22,014 | 21,091 | 20,525 | 20,734 | 19,966 | 17,996 | 18,488 | 19,218 | 17,930 | 16,973 | 16,642 | 15,885 | 14,080 | 16,064 | 17,505 | 17,487 | 16,999 | 16,375 | 16,026 | 15,752 | 16,047 | 15,806 | 14,758 | 15,754 | 15,129 | 14,867 | 14,367 | 13,233 | 14,563 | 14,279 | 15,356 | 15,288 | 14,777 | 14,284 | 14,212 | 13,858 | 13,788 | 14,111 | 14,640 | 13,889 | 13,738 | 13,325 | 13,027 | 12,755 | 12,716 | 12,469 | 12,382 | 12,226 | 12,098 | 12,090 | 11,640 | 11,411 | 11,200 | 10,775 | 10,990 | 10,981 | 10,967 | 10,564 | 10,540 | 10,359 | 10,303 | 10,000 | |||||||||||||||||||||||||||
| SPDR ETFs Index: Bloomberg Global Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg Global Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 8,673 | 8,661 | 8,549 | 8,771 | 8,723 | 8,834 | 8,957 | 8,600 | 8,187 | 8,286 | 8,535 | 8,654 | 8,594 | 8,595 | 8,766 | 8,728 | 8,460 | 8,751 | 8,473 | 8,427 | 8,049 | 8,104 | 8,543 | 8,894 | 8,709 | 8,998 | 8,973 | 9,493 | 9,792 | 9,909 | 10,117 | 10,131 | 10,161 | 10,185 | 10,369 | 10,413 | 10,276 | 10,367 | 10,271 | 10,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 9,388 | 9,300 | 9,145 | 9,382 | 9,296 | 9,430 | 9,456 | 9,107 | 8,712 | 8,852 | 9,083 | 9,141 | 9,148 | 9,180 | 9,281 | 9,226 | 8,997 | 9,236 | 8,960 | 9,001 | 8,681 | 8,795 | 9,193 | 9,460 | 9,234 | 9,381 | 9,321 | 9,689 | 9,966 | 10,078 | 10,300 | 10,327 | 10,296 | 10,299 | 10,389 | 10,409 | 10,294 | 10,222 | 10,189 | 10,109 | 10,237 | 10,386 | 10,462 | 10,447 | 10,346 | 10,392 | 10,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,431 | 11,324 | 11,136 | 11,424 | 11,320 | 11,482 | 11,514 | 11,089 | 10,609 | 10,779 | 11,060 | 11,131 | 11,139 | 11,179 | 11,302 | 11,234 | 10,955 | 11,246 | 10,910 | 10,960 | 10,571 | 10,710 | 11,193 | 11,519 | 11,244 | 11,423 | 11,350 | 11,798 | 12,135 | 12,272 | 12,542 | 12,574 | 12,537 | 12,541 | 12,650 | 12,674 | 12,534 | 12,447 | 12,406 | 12,309 | 12,465 | 12,647 | 12,739 | 12,721 | 12,597 | 12,654 | 12,661 | 12,764 | 12,576 | 12,497 | 12,439 | 12,222 | 12,294 | 12,077 | 11,849 | 11,857 | 11,863 | 11,828 | 11,891 | 11,591 | 11,565 | 11,422 | 11,223 | 11,220 | 11,008 | 11,015 | 10,899 | 10,702 | 10,639 | 10,724 | 10,793 | 10,724 | 10,722 | 10,734 | 10,659 | 10,738 | 10,670 | 10,772 | 10,898 | 10,848 | 10,862 | 10,855 | 10,908 | 10,810 | 10,764 | 10,775 | 10,693 | 10,611 | 10,616 | 10,546 | 10,524 | 10,510 | 10,765 | 10,847 | 10,854 | 10,866 | 10,798 | 10,607 | 10,604 | 10,564 | 10,467 | 10,393 | 10,252 | 10,286 | 10,313 | 10,311 | 10,242 | 10,257 | 10,186 | 10,298 | 10,323 | 10,360 | 10,312 | 10,410 | 10,196 | 10,187 | 10,115 | 10,017 | 10,085 | 9,975 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,431 | 11,324 | 11,136 | 11,424 | 11,320 | 11,482 | 11,514 | 11,089 | 10,609 | 10,779 | 11,060 | 11,131 | 11,139 | 11,179 | 11,302 | 11,234 | 10,955 | 11,246 | 10,910 | 10,960 | 10,571 | 10,710 | 11,193 | 11,519 | 11,244 | 11,423 | 11,350 | 11,798 | 12,135 | 12,272 | 12,542 | 12,574 | 12,537 | 12,541 | 12,650 | 12,674 | 12,534 | 12,447 | 12,406 | 12,309 | 12,465 | 12,647 | 12,739 | 12,721 | 12,597 | 12,654 | 12,661 | 12,764 | 12,576 | 12,497 | 12,439 | 12,222 | 12,294 | 12,077 | 11,849 | 11,857 | 11,863 | 11,828 | 11,891 | 11,591 | 11,565 | 11,422 | 11,223 | 11,220 | 11,008 | 11,015 | 10,899 | 10,702 | 10,639 | 10,724 | 10,793 | 10,724 | 10,722 | 10,734 | 10,659 | 10,738 | 10,670 | 10,772 | 10,898 | 10,848 | 10,862 | 10,855 | 10,908 | 10,810 | 10,764 | 10,775 | 10,693 | 10,611 | 10,616 | 10,546 | 10,524 | 10,510 | 10,765 | 10,847 | 10,854 | 10,866 | 10,798 | 10,607 | 10,604 | 10,564 | 10,467 | 10,393 | 10,252 | 10,286 | 10,313 | 10,311 | 10,242 | 10,257 | 10,186 | 10,298 | 10,323 | 10,360 | 10,312 | 10,410 | 10,196 | 10,187 | 10,115 | 10,017 | 10,085 | 9,975 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,431 | 11,324 | 11,136 | 11,424 | 11,320 | 11,482 | 11,514 | 11,089 | 10,609 | 10,779 | 11,060 | 11,131 | 11,139 | 11,179 | 11,302 | 11,234 | 10,955 | 11,246 | 10,910 | 10,960 | 10,571 | 10,710 | 11,193 | 11,519 | 11,244 | 11,423 | 11,350 | 11,798 | 12,135 | 12,272 | 12,542 | 12,574 | 12,537 | 12,541 | 12,650 | 12,674 | 12,534 | 12,447 | 12,406 | 12,309 | 12,465 | 12,647 | 12,739 | 12,721 | 12,597 | 12,654 | 12,661 | 12,764 | 12,576 | 12,497 | 12,439 | 12,222 | 12,294 | 12,077 | 11,849 | 11,857 | 11,863 | 11,828 | 11,891 | 11,591 | 11,565 | 11,422 | 11,223 | 11,220 | 11,008 | 11,015 | 10,899 | 10,702 | 10,639 | 10,724 | 10,793 | 10,724 | 10,722 | 10,734 | 10,659 | 10,738 | 10,670 | 10,772 | 10,898 | 10,848 | 10,862 | 10,855 | 10,908 | 10,810 | 10,764 | 10,775 | 10,693 | 10,611 | 10,616 | 10,546 | 10,524 | 10,510 | 10,765 | 10,847 | 10,854 | 10,866 | 10,798 | 10,607 | 10,604 | 10,564 | 10,467 | 10,393 | 10,252 | 10,286 | 10,313 | 10,311 | 10,242 | 10,257 | 10,186 | 10,298 | 10,323 | 10,360 | 10,312 | 10,410 | 10,196 | 10,187 | 10,115 | 10,017 | 10,085 | 9,975 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,431 | 11,324 | 11,136 | 11,424 | 11,320 | 11,482 | 11,514 | 11,089 | 10,609 | 10,779 | 11,060 | 11,131 | 11,139 | 11,179 | 11,302 | 11,234 | 10,955 | 11,246 | 10,910 | 10,960 | 10,571 | 10,710 | 11,193 | 11,519 | 11,244 | 11,423 | 11,350 | 11,798 | 12,135 | 12,272 | 12,542 | 12,574 | 12,537 | 12,541 | 12,650 | 12,674 | 12,534 | 12,447 | 12,406 | 12,309 | 12,465 | 12,647 | 12,739 | 12,721 | 12,597 | 12,654 | 12,661 | 12,764 | 12,576 | 12,497 | 12,439 | 12,222 | 12,294 | 12,077 | 11,849 | 11,857 | 11,863 | 11,828 | 11,891 | 11,591 | 11,565 | 11,422 | 11,223 | 11,220 | 11,008 | 11,015 | 10,899 | 10,702 | 10,639 | 10,724 | 10,793 | 10,724 | 10,722 | 10,734 | 10,659 | 10,738 | 10,670 | 10,772 | 10,898 | 10,848 | 10,862 | 10,855 | 10,908 | 10,810 | 10,764 | 10,775 | 10,693 | 10,611 | 10,616 | 10,546 | 10,524 | 10,510 | 10,765 | 10,847 | 10,854 | 10,866 | 10,798 | 10,607 | 10,604 | 10,564 | 10,467 | 10,393 | 10,252 | 10,286 | 10,313 | 10,311 | 10,242 | 10,257 | 10,186 | 10,298 | 10,323 | 10,360 | 10,312 | 10,410 | 10,196 | 10,187 | 10,115 | 10,017 | 10,085 | 9,975 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,431 | 11,324 | 11,136 | 11,424 | 11,320 | 11,482 | 11,514 | 11,089 | 10,609 | 10,779 | 11,060 | 11,131 | 11,139 | 11,179 | 11,302 | 11,234 | 10,955 | 11,246 | 10,910 | 10,960 | 10,571 | 10,710 | 11,193 | 11,519 | 11,244 | 11,423 | 11,350 | 11,798 | 12,135 | 12,272 | 12,542 | 12,574 | 12,537 | 12,541 | 12,650 | 12,674 | 12,534 | 12,447 | 12,406 | 12,309 | 12,465 | 12,647 | 12,739 | 12,721 | 12,597 | 12,654 | 12,661 | 12,764 | 12,576 | 12,497 | 12,439 | 12,222 | 12,294 | 12,077 | 11,849 | 11,857 | 11,863 | 11,828 | 11,891 | 11,591 | 11,565 | 11,422 | 11,223 | 11,220 | 11,008 | 11,015 | 10,899 | 10,702 | 10,639 | 10,724 | 10,793 | 10,724 | 10,722 | 10,734 | 10,659 | 10,738 | 10,670 | 10,772 | 10,898 | 10,848 | 10,862 | 10,855 | 10,908 | 10,810 | 10,764 | 10,775 | 10,693 | 10,611 | 10,616 | 10,546 | 10,524 | 10,510 | 10,765 | 10,847 | 10,854 | 10,866 | 10,798 | 10,607 | 10,604 | 10,564 | 10,467 | 10,393 | 10,252 | 10,286 | 10,313 | 10,311 | 10,242 | 10,257 | 10,186 | 10,298 | 10,323 | 10,360 | 10,312 | 10,410 | 10,196 | 10,187 | 10,115 | 10,017 | 10,085 | 9,975 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,431 | 11,324 | 11,136 | 11,424 | 11,320 | 11,482 | 11,514 | 11,089 | 10,609 | 10,779 | 11,060 | 11,131 | 11,139 | 11,179 | 11,302 | 11,234 | 10,955 | 11,246 | 10,910 | 10,960 | 10,571 | 10,710 | 11,193 | 11,519 | 11,244 | 11,423 | 11,350 | 11,798 | 12,135 | 12,272 | 12,542 | 12,574 | 12,537 | 12,541 | 12,650 | 12,674 | 12,534 | 12,447 | 12,406 | 12,309 | 12,465 | 12,647 | 12,739 | 12,721 | 12,597 | 12,654 | 12,661 | 12,764 | 12,576 | 12,497 | 12,439 | 12,222 | 12,294 | 12,077 | 11,849 | 11,857 | 11,863 | 11,828 | 11,891 | 11,591 | 11,565 | 11,422 | 11,223 | 11,220 | 11,008 | 11,015 | 10,899 | 10,702 | 10,639 | 10,724 | 10,793 | 10,724 | 10,722 | 10,734 | 10,659 | 10,738 | 10,670 | 10,772 | 10,898 | 10,848 | 10,862 | 10,855 | 10,908 | 10,810 | 10,764 | 10,775 | 10,693 | 10,611 | 10,616 | 10,546 | 10,524 | 10,510 | 10,765 | 10,847 | 10,854 | 10,866 | 10,798 | 10,607 | 10,604 | 10,564 | 10,467 | 10,393 | 10,252 | 10,286 | 10,313 | 10,311 | 10,242 | 10,257 | 10,186 | 10,298 | 10,323 | 10,360 | 10,312 | 10,410 | 10,196 | 10,187 | 10,115 | 10,017 | 10,085 | 9,975 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,431 | 11,324 | 11,136 | 11,424 | 11,320 | 11,482 | 11,514 | 11,089 | 10,609 | 10,779 | 11,060 | 11,131 | 11,139 | 11,179 | 11,302 | 11,234 | 10,955 | 11,246 | 10,910 | 10,960 | 10,571 | 10,710 | 11,193 | 11,519 | 11,244 | 11,423 | 11,350 | 11,798 | 12,135 | 12,272 | 12,542 | 12,574 | 12,537 | 12,541 | 12,650 | 12,674 | 12,534 | 12,447 | 12,406 | 12,309 | 12,465 | 12,647 | 12,739 | 12,721 | 12,597 | 12,654 | 12,661 | 12,764 | 12,576 | 12,497 | 12,439 | 12,222 | 12,294 | 12,077 | 11,849 | 11,857 | 11,863 | 11,828 | 11,891 | 11,591 | 11,565 | 11,422 | 11,223 | 11,220 | 11,008 | 11,015 | 10,899 | 10,702 | 10,639 | 10,724 | 10,793 | 10,724 | 10,722 | 10,734 | 10,659 | 10,738 | 10,670 | 10,772 | 10,898 | 10,848 | 10,862 | 10,855 | 10,908 | 10,810 | 10,764 | 10,775 | 10,693 | 10,611 | 10,616 | 10,546 | 10,524 | 10,510 | 10,765 | 10,847 | 10,854 | 10,866 | 10,798 | 10,607 | 10,604 | 10,564 | 10,467 | 10,393 | 10,252 | 10,286 | 10,313 | 10,311 | 10,242 | 10,257 | 10,186 | 10,298 | 10,323 | 10,360 | 10,312 | 10,410 | 10,196 | 10,187 | 10,115 | 10,017 | 10,085 | 9,975 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,431 | 11,324 | 11,136 | 11,424 | 11,320 | 11,482 | 11,514 | 11,089 | 10,609 | 10,779 | 11,060 | 11,131 | 11,139 | 11,179 | 11,302 | 11,234 | 10,955 | 11,246 | 10,910 | 10,960 | 10,571 | 10,710 | 11,193 | 11,519 | 11,244 | 11,423 | 11,350 | 11,798 | 12,135 | 12,272 | 12,542 | 12,574 | 12,537 | 12,541 | 12,650 | 12,674 | 12,534 | 12,447 | 12,406 | 12,309 | 12,465 | 12,647 | 12,739 | 12,721 | 12,597 | 12,654 | 12,661 | 12,764 | 12,576 | 12,497 | 12,439 | 12,222 | 12,294 | 12,077 | 11,849 | 11,857 | 11,863 | 11,828 | 11,891 | 11,591 | 11,565 | 11,422 | 11,223 | 11,220 | 11,008 | 11,015 | 10,899 | 10,702 | 10,639 | 10,724 | 10,793 | 10,724 | 10,722 | 10,734 | 10,659 | 10,738 | 10,670 | 10,772 | 10,898 | 10,848 | 10,862 | 10,855 | 10,908 | 10,810 | 10,764 | 10,775 | 10,693 | 10,611 | 10,616 | 10,546 | 10,524 | 10,510 | 10,765 | 10,847 | 10,854 | 10,866 | 10,798 | 10,607 | 10,604 | 10,564 | 10,467 | 10,393 | 10,252 | 10,286 | 10,313 | 10,311 | 10,242 | 10,257 | 10,186 | 10,298 | 10,323 | 10,360 | 10,312 | 10,410 | 10,196 | 10,187 | 10,115 | 10,017 | 10,085 | 9,975 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,431 | 11,324 | 11,136 | 11,424 | 11,320 | 11,482 | 11,514 | 11,089 | 10,609 | 10,779 | 11,060 | 11,131 | 11,139 | 11,179 | 11,302 | 11,234 | 10,955 | 11,246 | 10,910 | 10,960 | 10,571 | 10,710 | 11,193 | 11,519 | 11,244 | 11,423 | 11,350 | 11,798 | 12,135 | 12,272 | 12,542 | 12,574 | 12,537 | 12,541 | 12,650 | 12,674 | 12,534 | 12,447 | 12,406 | 12,309 | 12,465 | 12,647 | 12,739 | 12,721 | 12,597 | 12,654 | 12,661 | 12,764 | 12,576 | 12,497 | 12,439 | 12,222 | 12,294 | 12,077 | 11,849 | 11,857 | 11,863 | 11,828 | 11,891 | 11,591 | 11,565 | 11,422 | 11,223 | 11,220 | 11,008 | 11,015 | 10,899 | 10,702 | 10,639 | 10,724 | 10,793 | 10,724 | 10,722 | 10,734 | 10,659 | 10,738 | 10,670 | 10,772 | 10,898 | 10,848 | 10,862 | 10,855 | 10,908 | 10,810 | 10,764 | 10,775 | 10,693 | 10,611 | 10,616 | 10,546 | 10,524 | 10,510 | 10,765 | 10,847 | 10,854 | 10,866 | 10,798 | 10,607 | 10,604 | 10,564 | 10,467 | 10,393 | 10,252 | 10,286 | 10,313 | 10,311 | 10,242 | 10,257 | 10,186 | 10,298 | 10,323 | 10,360 | 10,312 | 10,410 | 10,196 | 10,187 | 10,115 | 10,017 | 10,085 | 9,975 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,292 | 10,196 | 10,026 | 10,286 | 10,192 | 10,338 | 10,366 | 9,984 | 9,552 | 9,705 | 9,958 | 10,022 | 10,029 | 10,065 | 10,175 | 10,114 | 9,864 | 10,125 | 9,823 | 9,868 | 9,518 | 9,643 | 10,078 | 10,371 | 10,124 | 10,285 | 10,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,431 | 11,324 | 11,136 | 11,424 | 11,320 | 11,482 | 11,514 | 11,089 | 10,609 | 10,779 | 11,060 | 11,131 | 11,139 | 11,179 | 11,302 | 11,234 | 10,955 | 11,246 | 10,910 | 10,960 | 10,571 | 10,710 | 11,193 | 11,519 | 11,244 | 11,423 | 11,350 | 11,798 | 12,135 | 12,272 | 12,542 | 12,574 | 12,537 | 12,541 | 12,650 | 12,674 | 12,534 | 12,447 | 12,406 | 12,309 | 12,465 | 12,647 | 12,739 | 12,721 | 12,597 | 12,654 | 12,661 | 12,764 | 12,576 | 12,497 | 12,439 | 12,222 | 12,294 | 12,077 | 11,849 | 11,857 | 11,863 | 11,828 | 11,891 | 11,591 | 11,565 | 11,422 | 11,223 | 11,220 | 11,008 | 11,015 | 10,899 | 10,702 | 10,639 | 10,724 | 10,793 | 10,724 | 10,722 | 10,734 | 10,659 | 10,738 | 10,670 | 10,772 | 10,898 | 10,848 | 10,862 | 10,855 | 10,908 | 10,810 | 10,764 | 10,775 | 10,693 | 10,611 | 10,616 | 10,546 | 10,524 | 10,510 | 10,765 | 10,847 | 10,854 | 10,866 | 10,798 | 10,607 | 10,604 | 10,564 | 10,467 | 10,393 | 10,252 | 10,286 | 10,313 | 10,311 | 10,242 | 10,257 | 10,186 | 10,298 | 10,323 | 10,360 | 10,312 | 10,410 | 10,196 | 10,187 | 10,115 | 10,017 | 10,085 | 9,975 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,431 | 11,324 | 11,136 | 11,424 | 11,320 | 11,482 | 11,514 | 11,089 | 10,609 | 10,779 | 11,060 | 11,131 | 11,139 | 11,179 | 11,302 | 11,234 | 10,955 | 11,246 | 10,910 | 10,960 | 10,571 | 10,710 | 11,193 | 11,519 | 11,244 | 11,423 | 11,350 | 11,798 | 12,135 | 12,272 | 12,542 | 12,574 | 12,537 | 12,541 | 12,650 | 12,674 | 12,534 | 12,447 | 12,406 | 12,309 | 12,465 | 12,647 | 12,739 | 12,721 | 12,597 | 12,654 | 12,661 | 12,764 | 12,576 | 12,497 | 12,439 | 12,222 | 12,294 | 12,077 | 11,849 | 11,857 | 11,863 | 11,828 | 11,891 | 11,591 | 11,565 | 11,422 | 11,223 | 11,220 | 11,008 | 11,015 | 10,899 | 10,702 | 10,639 | 10,724 | 10,793 | 10,724 | 10,722 | 10,734 | 10,659 | 10,738 | 10,670 | 10,772 | 10,898 | 10,848 | 10,862 | 10,855 | 10,908 | 10,810 | 10,764 | 10,775 | 10,693 | 10,611 | 10,616 | 10,546 | 10,524 | 10,510 | 10,765 | 10,847 | 10,854 | 10,866 | 10,798 | 10,607 | 10,604 | 10,564 | 10,467 | 10,393 | 10,252 | 10,286 | 10,313 | 10,311 | 10,242 | 10,257 | 10,186 | 10,298 | 10,323 | 10,360 | 10,312 | 10,410 | 10,196 | 10,187 | 10,115 | 10,017 | 10,085 | 9,975 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,431 | 11,324 | 11,136 | 11,424 | 11,320 | 11,482 | 11,514 | 11,089 | 10,609 | 10,779 | 11,060 | 11,131 | 11,139 | 11,179 | 11,302 | 11,234 | 10,955 | 11,246 | 10,910 | 10,960 | 10,571 | 10,710 | 11,193 | 11,519 | 11,244 | 11,423 | 11,350 | 11,798 | 12,135 | 12,272 | 12,542 | 12,574 | 12,537 | 12,541 | 12,650 | 12,674 | 12,534 | 12,447 | 12,406 | 12,309 | 12,465 | 12,647 | 12,739 | 12,721 | 12,597 | 12,654 | 12,661 | 12,764 | 12,576 | 12,497 | 12,439 | 12,222 | 12,294 | 12,077 | 11,849 | 11,857 | 11,863 | 11,828 | 11,891 | 11,591 | 11,565 | 11,422 | 11,223 | 11,220 | 11,008 | 11,015 | 10,899 | 10,702 | 10,639 | 10,724 | 10,793 | 10,724 | 10,722 | 10,734 | 10,659 | 10,738 | 10,670 | 10,772 | 10,898 | 10,848 | 10,862 | 10,855 | 10,908 | 10,810 | 10,764 | 10,775 | 10,693 | 10,611 | 10,616 | 10,546 | 10,524 | 10,510 | 10,765 | 10,847 | 10,854 | 10,866 | 10,798 | 10,607 | 10,604 | 10,564 | 10,467 | 10,393 | 10,252 | 10,286 | 10,313 | 10,311 | 10,242 | 10,257 | 10,186 | 10,298 | 10,323 | 10,360 | 10,312 | 10,410 | 10,196 | 10,187 | 10,115 | 10,017 | 10,085 | 9,975 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,431 | 11,324 | 11,136 | 11,424 | 11,320 | 11,482 | 11,514 | 11,089 | 10,609 | 10,779 | 11,060 | 11,131 | 11,139 | 11,179 | 11,302 | 11,234 | 10,955 | 11,246 | 10,910 | 10,960 | 10,571 | 10,710 | 11,193 | 11,519 | 11,244 | 11,423 | 11,350 | 11,798 | 12,135 | 12,272 | 12,542 | 12,574 | 12,537 | 12,541 | 12,650 | 12,674 | 12,534 | 12,447 | 12,406 | 12,309 | 12,465 | 12,647 | 12,739 | 12,721 | 12,597 | 12,654 | 12,661 | 12,764 | 12,576 | 12,497 | 12,439 | 12,222 | 12,294 | 12,077 | 11,849 | 11,857 | 11,863 | 11,828 | 11,891 | 11,591 | 11,565 | 11,422 | 11,223 | 11,220 | 11,008 | 11,015 | 10,899 | 10,702 | 10,639 | 10,724 | 10,793 | 10,724 | 10,722 | 10,734 | 10,659 | 10,738 | 10,670 | 10,772 | 10,898 | 10,848 | 10,862 | 10,855 | 10,908 | 10,810 | 10,764 | 10,775 | 10,693 | 10,611 | 10,616 | 10,546 | 10,524 | 10,510 | 10,765 | 10,847 | 10,854 | 10,866 | 10,798 | 10,607 | 10,604 | 10,564 | 10,467 | 10,393 | 10,252 | 10,286 | 10,313 | 10,311 | 10,242 | 10,257 | 10,186 | 10,298 | 10,323 | 10,360 | 10,312 | 10,410 | 10,196 | 10,187 | 10,115 | 10,017 | 10,085 | 9,975 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,431 | 11,324 | 11,136 | 11,424 | 11,320 | 11,482 | 11,514 | 11,089 | 10,609 | 10,779 | 11,060 | 11,131 | 11,139 | 11,179 | 11,302 | 11,234 | 10,955 | 11,246 | 10,910 | 10,960 | 10,571 | 10,710 | 11,193 | 11,519 | 11,244 | 11,423 | 11,350 | 11,798 | 12,135 | 12,272 | 12,542 | 12,574 | 12,537 | 12,541 | 12,650 | 12,674 | 12,534 | 12,447 | 12,406 | 12,309 | 12,465 | 12,647 | 12,739 | 12,721 | 12,597 | 12,654 | 12,661 | 12,764 | 12,576 | 12,497 | 12,439 | 12,222 | 12,294 | 12,077 | 11,849 | 11,857 | 11,863 | 11,828 | 11,891 | 11,591 | 11,565 | 11,422 | 11,223 | 11,220 | 11,008 | 11,015 | 10,899 | 10,702 | 10,639 | 10,724 | 10,793 | 10,724 | 10,722 | 10,734 | 10,659 | 10,738 | 10,670 | 10,772 | 10,898 | 10,848 | 10,862 | 10,855 | 10,908 | 10,810 | 10,764 | 10,775 | 10,693 | 10,611 | 10,616 | 10,546 | 10,524 | 10,510 | 10,765 | 10,847 | 10,854 | 10,866 | 10,798 | 10,607 | 10,604 | 10,564 | 10,467 | 10,393 | 10,252 | 10,286 | 10,313 | 10,311 | 10,242 | 10,257 | 10,186 | 10,298 | 10,323 | 10,360 | 10,312 | 10,410 | 10,196 | 10,187 | 10,115 | 10,017 | 10,085 | 9,975 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,431 | 11,324 | 11,136 | 11,424 | 11,320 | 11,482 | 11,514 | 11,089 | 10,609 | 10,779 | 11,060 | 11,131 | 11,139 | 11,179 | 11,302 | 11,234 | 10,955 | 11,246 | 10,910 | 10,960 | 10,571 | 10,710 | 11,193 | 11,519 | 11,244 | 11,423 | 11,350 | 11,798 | 12,135 | 12,272 | 12,542 | 12,574 | 12,537 | 12,541 | 12,650 | 12,674 | 12,534 | 12,447 | 12,406 | 12,309 | 12,465 | 12,647 | 12,739 | 12,721 | 12,597 | 12,654 | 12,661 | 12,764 | 12,576 | 12,497 | 12,439 | 12,222 | 12,294 | 12,077 | 11,849 | 11,857 | 11,863 | 11,828 | 11,891 | 11,591 | 11,565 | 11,422 | 11,222 | 11,219 | 11,008 | 11,014 | 10,899 | 10,702 | 10,639 | 10,723 | 10,793 | 10,724 | 10,721 | 10,734 | 10,659 | 10,738 | 10,670 | 10,772 | 10,898 | 10,848 | 10,862 | 10,855 | 10,908 | 10,810 | 10,764 | 10,775 | 10,693 | 10,611 | 10,616 | 10,546 | 10,524 | 10,510 | 10,765 | 10,847 | 10,854 | 10,866 | 10,798 | 10,607 | 10,604 | 10,564 | 10,467 | 10,393 | 10,252 | 10,286 | 10,313 | 10,311 | 10,242 | 10,257 | 10,186 | 10,298 | 10,323 | 10,360 | 10,312 | 10,410 | 10,196 | 10,187 | 10,115 | 10,017 | 10,085 | 9,975 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,431 | 11,324 | 11,136 | 11,424 | 11,320 | 11,482 | 11,514 | 11,089 | 10,609 | 10,779 | 11,060 | 11,131 | 11,139 | 11,179 | 11,302 | 11,234 | 10,955 | 11,246 | 10,910 | 10,960 | 10,571 | 10,710 | 11,193 | 11,519 | 11,244 | 11,423 | 11,350 | 11,798 | 12,135 | 12,272 | 12,542 | 12,574 | 12,537 | 12,541 | 12,650 | 12,674 | 12,534 | 12,447 | 12,406 | 12,309 | 12,465 | 12,647 | 12,739 | 12,721 | 12,597 | 12,654 | 12,661 | 12,764 | 12,576 | 12,497 | 12,439 | 12,222 | 12,294 | 12,077 | 11,849 | 11,857 | 11,863 | 11,828 | 11,891 | 11,591 | 11,565 | 11,422 | 11,223 | 11,220 | 11,008 | 11,015 | 10,899 | 10,702 | 10,639 | 10,724 | 10,793 | 10,724 | 10,722 | 10,734 | 10,659 | 10,738 | 10,670 | 10,772 | 10,898 | 10,848 | 10,862 | 10,855 | 10,908 | 10,810 | 10,764 | 10,775 | 10,693 | 10,611 | 10,616 | 10,546 | 10,524 | 10,510 | 10,765 | 10,847 | 10,854 | 10,866 | 10,798 | 10,607 | 10,604 | 10,564 | 10,467 | 10,393 | 10,252 | 10,286 | 10,313 | 10,311 | 10,242 | 10,257 | 10,186 | 10,298 | 10,323 | 10,360 | 10,312 | 10,410 | 10,196 | 10,187 | 10,115 | 10,017 | 10,085 | 9,975 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,431 | 11,324 | 11,136 | 11,424 | 11,320 | 11,482 | 11,514 | 11,089 | 10,609 | 10,779 | 11,060 | 11,131 | 11,139 | 11,179 | 11,302 | 11,234 | 10,955 | 11,246 | 10,910 | 10,960 | 10,571 | 10,710 | 11,193 | 11,519 | 11,244 | 11,423 | 11,350 | 11,798 | 12,135 | 12,272 | 12,542 | 12,574 | 12,537 | 12,541 | 12,650 | 12,674 | 12,534 | 12,447 | 12,406 | 12,309 | 12,465 | 12,647 | 12,739 | 12,721 | 12,597 | 12,654 | 12,661 | 12,764 | 12,576 | 12,497 | 12,439 | 12,222 | 12,294 | 12,077 | 11,849 | 11,857 | 11,863 | 11,828 | 11,891 | 11,591 | 11,565 | 11,422 | 11,223 | 11,220 | 11,008 | 11,015 | 10,899 | 10,702 | 10,639 | 10,724 | 10,793 | 10,724 | 10,722 | 10,734 | 10,659 | 10,738 | 10,670 | 10,772 | 10,898 | 10,848 | 10,862 | 10,855 | 10,908 | 10,810 | 10,764 | 10,775 | 10,693 | 10,611 | 10,616 | 10,546 | 10,524 | 10,510 | 10,765 | 10,847 | 10,854 | 10,866 | 10,798 | 10,607 | 10,604 | 10,564 | 10,467 | 10,393 | 10,252 | 10,286 | 10,313 | 10,311 | 10,242 | 10,257 | 10,186 | 10,298 | 10,323 | 10,360 | 10,312 | 10,410 | 10,196 | 10,187 | 10,115 | 10,017 | 10,085 | 9,975 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,431 | 11,324 | 11,136 | 11,424 | 11,320 | 11,482 | 11,514 | 11,089 | 10,609 | 10,779 | 11,060 | 11,131 | 11,139 | 11,179 | 11,302 | 11,234 | 10,955 | 11,246 | 10,910 | 10,960 | 10,571 | 10,710 | 11,193 | 11,519 | 11,244 | 11,423 | 11,350 | 11,798 | 12,135 | 12,272 | 12,542 | 12,574 | 12,537 | 12,541 | 12,650 | 12,674 | 12,534 | 12,447 | 12,406 | 12,309 | 12,465 | 12,647 | 12,739 | 12,721 | 12,597 | 12,654 | 12,661 | 12,764 | 12,576 | 12,497 | 12,439 | 12,222 | 12,294 | 12,077 | 11,849 | 11,857 | 11,863 | 11,828 | 11,891 | 11,591 | 11,565 | 11,422 | 11,222 | 11,219 | 11,008 | 11,014 | 10,899 | 10,702 | 10,639 | 10,723 | 10,793 | 10,724 | 10,721 | 10,734 | 10,659 | 10,738 | 10,670 | 10,772 | 10,898 | 10,848 | 10,862 | 10,855 | 10,908 | 10,810 | 10,764 | 10,775 | 10,693 | 10,611 | 10,616 | 10,546 | 10,524 | 10,510 | 10,765 | 10,847 | 10,854 | 10,866 | 10,798 | 10,607 | 10,604 | 10,564 | 10,467 | 10,393 | 10,252 | 10,286 | 10,313 | 10,311 | 10,242 | 10,257 | 10,186 | 10,298 | 10,323 | 10,360 | 10,312 | 10,410 | 10,196 | 10,187 | 10,115 | 10,017 | 10,085 | 9,975 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg Global Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg Global Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 9,456 | 9,320 | 9,562 | 9,509 | 9,630 | 9,765 | 9,375 | 8,925 | 9,033 | 9,305 | 9,434 | 9,369 | 9,370 | 9,557 | 9,515 | 9,223 | 9,540 | 9,237 | 9,187 | 8,775 | 8,835 | 9,314 | 9,696 | 9,495 | 9,809 | 9,783 | 10,350 | 10,675 | 10,803 | 11,029 | 11,045 | 11,077 | 11,104 | 11,305 | 11,352 | 11,203 | 11,303 | 11,197 | 11,058 | 11,275 | 11,472 | 11,574 | 11,421 | 11,217 | 11,206 | 11,246 | 11,264 | 10,915 | 10,819 | 10,772 | 10,565 | 10,807 | 10,735 | 10,599 | 10,538 | 10,618 | 10,548 | 10,657 | 10,444 | 10,473 | 10,246 | 10,109 | 10,139 | 10,014 | 10,072 | 9,921 | 9,724 | 9,694 | 9,803 | 9,889 | 9,878 | 9,895 | 9,939 | 10,015 | 10,178 | 10,071 | 10,161 | 10,041 | 10,007 | 9,897 | 9,934 | 10,025 | 9,926 | 9,762 | 9,771 | 9,622 | 9,515 | 9,500 | 9,455 | 9,350 | 9,393 | 9,782 | 10,061 | 10,006 | 10,055 | 9,979 | 9,696 | 9,828 | 9,962 | 9,831 | 9,572 | 9,364 | 9,283 | 9,234 | 9,390 | 9,370 | 9,322 | 9,312 | 9,291 | 9,332 | 9,501 | 9,401 | 9,493 | 9,570 | 9,586 | 9,652 | 9,687 | 9,686 | 9,964 | 9,910 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,431 | 11,324 | 11,136 | 11,424 | 11,320 | 11,482 | 11,514 | 11,089 | 10,609 | 10,779 | 11,060 | 11,131 | 11,139 | 11,179 | 11,302 | 11,234 | 10,955 | 11,246 | 10,910 | 10,960 | 10,571 | 10,710 | 11,193 | 11,519 | 11,244 | 11,423 | 11,350 | 11,798 | 12,135 | 12,272 | 12,542 | 12,574 | 12,537 | 12,541 | 12,650 | 12,674 | 12,534 | 12,447 | 12,406 | 12,309 | 12,465 | 12,647 | 12,739 | 12,721 | 12,597 | 12,654 | 12,661 | 12,764 | 12,576 | 12,497 | 12,439 | 12,222 | 12,294 | 12,077 | 11,849 | 11,857 | 11,863 | 11,828 | 11,891 | 11,591 | 11,565 | 11,422 | 11,223 | 11,220 | 11,008 | 11,015 | 10,899 | 10,702 | 10,639 | 10,724 | 10,793 | 10,724 | 10,722 | 10,734 | 10,659 | 10,738 | 10,670 | 10,772 | 10,898 | 10,848 | 10,862 | 10,855 | 10,908 | 10,810 | 10,764 | 10,775 | 10,693 | 10,611 | 10,616 | 10,546 | 10,524 | 10,510 | 10,765 | 10,847 | 10,854 | 10,866 | 10,798 | 10,607 | 10,604 | 10,564 | 10,467 | 10,393 | 10,252 | 10,286 | 10,313 | 10,311 | 10,242 | 10,257 | 10,186 | 10,298 | 10,323 | 10,360 | 10,312 | 10,410 | 10,196 | 10,187 | 10,115 | 10,017 | 10,085 | 9,975 | 10,000 | |||||||
| SPDR ETFs Index: S&P 500 Fossil Fuel Free Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Fossil Fuel Free Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 31,163 | 30,031 | 28,567 | 29,829 | 28,937 | 27,472 | 27,003 | 25,806 | 23,570 | 24,019 | 25,289 | 25,727 | 24,941 | 23,385 | 23,191 | 22,865 | 22,026 | 22,528 | 21,165 | 22,483 | 21,243 | 19,768 | 21,777 | 22,760 | 20,856 | 22,657 | 22,733 | 24,966 | 24,106 | 24,919 | 26,413 | 25,268 | 25,420 | 23,774 | 25,021 | 24,259 | 23,654 | 23,130 | 22,990 | 21,798 | 20,856 | 20,299 | 20,572 | 19,815 | 17,900 | 18,384 | 19,076 | 17,769 | 16,785 | 16,449 | 15,685 | 13,944 | 15,812 | 17,201 | 17,156 | 16,671 | 16,077 | 15,704 | 15,417 | 15,634 | 15,387 | 14,371 | 15,348 | 14,715 | 14,439 | 13,999 | 12,950 | 14,228 | 13,940 | 14,969 | 14,900 | 14,381 | 13,827 | 13,776 | 13,458 | 13,453 | 13,830 | 14,308 | 13,514 | 13,378 | 12,972 | 12,668 | 12,449 | 12,382 | 12,138 | 12,054 | 11,862 | 11,720 | 11,701 | 11,218 | 10,971 | 10,759 | 10,398 | 10,579 | 10,592 | 10,574 | 10,160 | 10,155 | 9,963 | 9,974 | 9,362 | 9,371 | 9,872 | 10,000 | $ 10,000 | |||||||||||||||||||||||
| SPDR ETFs Index: The Global Dow | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | The Global Dow | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 22,868 | 22,984 | 22,134 | 22,672 | 21,796 | 21,153 | 21,004 | 20,057 | 18,503 | 19,118 | 19,766 | 20,362 | 19,571 | 18,229 | 18,878 | 18,502 | 18,270 | 18,728 | 17,345 | 17,649 | 16,055 | 14,803 | 16,434 | 16,855 | 16,224 | 18,015 | 17,521 | 18,793 | 18,482 | 18,941 | 18,842 | 17,738 | 18,575 | 17,943 | 18,371 | 17,964 | 18,034 | 18,233 | 17,595 | 17,073 | 16,385 | 15,407 | 15,530 | 14,898 | 12,807 | 13,126 | 13,692 | 12,914 | 12,431 | 12,089 | 11,671 | 10,793 | 12,631 | 13,763 | 14,149 | 13,697 | 13,367 | 13,094 | 12,767 | 13,228 | 13,247 | 12,396 | 13,240 | 12,806 | 12,772 | 12,520 | 11,602 | 12,442 | 12,238 | 13,190 | 12,973 | 13,003 | 12,511 | 12,584 | 12,778 | 12,593 | 12,971 | 13,555 | 12,792 | 12,493 | 12,233 | 12,005 | 11,726 | 11,737 | 11,374 | 11,306 | 11,143 | 10,972 | 10,820 | 10,539 | 10,264 | 9,948 | 9,878 | 9,931 | 9,853 | 9,703 | 9,290 | 9,374 | 9,483 | 9,214 | 8,566 | 8,628 | 9,248 | 9,457 | 9,626 | 8,853 | 9,265 | 9,990 | 9,863 | 10,114 | 10,133 | 9,799 | 10,020 | 9,459 | 9,688 | 9,948 | 9,758 | 9,772 | 10,087 | 9,912 | 10,000 | |||||||
| SPDR ETFs Index: S&P Capital Markets Select Industry Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P Capital Markets Select Industry Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 28,502 | 28,617 | 27,340 | 28,454 | 27,135 | 25,564 | 26,102 | 23,199 | 20,868 | 22,045 | 22,708 | 23,173 | 21,437 | 19,897 | 20,547 | 20,891 | 22,005 | 22,327 | 19,681 | 21,131 | 19,697 | 17,740 | 19,712 | 20,110 | 17,972 | 20,094 | 19,335 | 22,331 | 22,444 | 23,206 | 25,217 | 24,754 | 25,771 | 23,003 | 23,961 | 22,947 | 22,624 | 22,209 | 21,469 | 20,165 | 19,169 | 17,722 | 17,927 | 16,295 | 14,255 | 13,654 | 14,120 | 13,598 | 13,288 | 12,939 | 12,194 | 10,687 | 12,965 | 14,107 | 13,821 | 13,725 | 12,918 | 12,676 | 12,409 | 13,099 | 12,764 | 12,054 | 13,132 | 12,168 | 12,454 | 11,801 | 10,871 | 12,033 | 11,736 | 12,677 | 13,164 | 13,271 | 12,988 | 13,311 | 13,099 | 13,043 | 13,129 | 13,286 | 12,765 | 12,466 | 11,734 | 11,532 | 10,858 | 11,151 | 10,739 | 10,082 | 10,184 | 10,156 | 10,303 | 9,924 | 9,681 | 9,579 | 8,396 | 8,680 | 8,780 | 8,351 | 7,698 | 8,729 | 8,429 | 8,238 | 7,538 | 7,715 | 9,089 | 9,727 | 9,272 | 8,638 | 9,329 | 10,445 | 10,503 | 10,445 | 10,322 | 10,370 | 10,273 | 9,540 | 10,365 | 10,095 | 9,995 | 9,777 | 10,076 | 9,652 | 10,000 | |||||||
| SPDR ETFs Index: S&P Insurance Select Industry Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P Insurance Select Industry Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 29,029 | 29,685 | 28,140 | 30,193 | 28,704 | 27,406 | 26,056 | 25,951 | 24,481 | 24,376 | 24,278 | 24,255 | 23,318 | 21,679 | 22,971 | 22,369 | 24,495 | 24,573 | 23,153 | 23,939 | 23,209 | 20,267 | 21,257 | 21,271 | 21,125 | 22,260 | 21,611 | 23,312 | 22,101 | 22,119 | 22,300 | 20,995 | 22,132 | 20,729 | 21,640 | 20,803 | 21,044 | 21,595 | 21,307 | 19,857 | 18,865 | 17,355 | 18,111 | 17,416 | 15,204 | 15,002 | 15,693 | 15,178 | 14,555 | 14,350 | 13,802 | 13,202 | 16,700 | 18,647 | 18,631 | 18,548 | 17,977 | 18,417 | 17,531 | 18,015 | 17,679 | 16,798 | 17,191 | 15,982 | 16,295 | 15,649 | 14,596 | 15,834 | 15,349 | 16,390 | 16,319 | 16,132 | 15,166 | 15,408 | 15,634 | 15,711 | 15,333 | 15,889 | 15,455 | 15,604 | 15,359 | 15,010 | 14,680 | 15,184 | 14,628 | 14,311 | 14,292 | 14,203 | 14,378 | 13,725 | 13,643 | 13,201 | 12,154 | 12,123 | 12,190 | 11,698 | 11,576 | 11,835 | 11,310 | 11,207 | 10,484 | 10,570 | 11,198 | 11,593 | 11,396 | 10,803 | 10,904 | 11,415 | 10,843 | 10,756 | 10,607 | 10,638 | 10,535 | 9,919 | 10,526 | 10,403 | 10,270 | 9,863 | 10,124 | 9,535 | 10,000 | |||||||
| SPDR ETFs Index: NYSE Technology Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | NYSE Technology Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 59,108 | 55,100 | 52,126 | 55,100 | 54,230 | 51,131 | 49,553 | 46,559 | 40,039 | 41,164 | 43,805 | 44,726 | 41,944 | 39,101 | 35,192 | 36,380 | 33,267 | 33,793 | 29,010 | 32,010 | 29,172 | 28,057 | 32,072 | 33,659 | 30,666 | 34,106 | 35,090 | 41,182 | 41,136 | 43,523 | 49,049 | 49,775 | 49,063 | 46,230 | 48,521 | 46,818 | 46,925 | 43,924 | 44,258 | 42,613 | 43,432 | 42,332 | 41,560 | 38,854 | 33,722 | 34,859 | 36,594 | 31,677 | 29,164 | 26,811 | 24,817 | 21,385 | 23,794 | 24,749 | 23,823 | 22,764 | 21,732 | 21,148 | 21,187 | 21,835 | 21,068 | 19,464 | 21,939 | 20,602 | 19,953 | 19,041 | 17,176 | 18,721 | 18,589 | 20,900 | 20,981 | 20,474 | 20,589 | 20,492 | 19,373 | 19,558 | 20,361 | 20,276 | 18,400 | 18,415 | 18,229 | 17,167 | 16,896 | 16,395 | 15,822 | 15,974 | 15,359 | 14,883 | 14,531 | 13,902 | 13,081 | 13,019 | 12,916 | 12,905 | 12,650 | 12,234 | 11,311 | 11,613 | 11,065 | 11,278 | 10,456 | 10,463 | 11,510 | 11,782 | 11,662 | 10,560 | 10,733 | 11,265 | 10,664 | 11,057 | 10,924 | 10,595 | 11,076 | 10,190 | 10,641 | 10,678 | 10,213 | 10,171 | 10,409 | 10,011 | 10,000 | |||||||
| SPDR ETFs Index: S&P Health Care Equipment Select Industry Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P Health Care Equipment Select Industry Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 24,307 | 24,765 | 23,596 | 25,295 | 24,330 | 24,116 | 24,268 | 21,544 | 19,561 | 22,400 | 24,920 | 28,203 | 28,192 | 26,716 | 28,014 | 26,844 | 26,660 | 27,413 | 25,726 | 26,270 | 25,298 | 24,379 | 26,480 | 26,736 | 24,290 | 26,004 | 27,234 | 31,994 | 31,209 | 29,638 | 33,565 | 32,274 | 35,944 | 35,711 | 37,384 | 37,075 | 36,835 | 34,520 | 35,902 | 34,054 | 34,330 | 33,735 | 32,431 | 30,148 | 27,757 | 27,710 | 27,545 | 27,131 | 25,391 | 25,032 | 23,752 | 20,396 | 22,720 | 24,225 | 24,357 | 24,228 | 22,421 | 22,170 | 22,620 | 23,589 | 23,207 | 21,177 | 21,998 | 22,745 | 22,710 | 21,677 | 19,848 | 22,045 | 21,807 | 24,811 | 24,918 | 22,790 | 22,101 | 21,751 | 20,028 | 19,605 | 18,984 | 19,575 | 18,114 | 18,635 | 17,912 | 17,530 | 17,181 | 16,929 | 17,120 | 16,141 | 16,264 | 15,694 | 15,274 | 14,445 | 13,886 | 13,658 | 13,335 | 14,433 | 14,361 | 13,924 | 13,181 | 12,386 | 12,239 | 11,843 | 11,148 | 10,952 | 12,302 | 12,303 | 11,672 | 11,230 | 12,178 | 12,720 | 12,173 | 12,002 | 11,761 | 12,324 | 11,998 | 11,350 | 11,262 | 10,901 | 10,488 | 9,516 | 9,853 | 9,828 | 10,000 | |||||||
| SPDR ETFs Index: S&P Health Care Services Select Industry Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P Health Care Services Select Industry Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 19,701 | 20,122 | 19,320 | 20,726 | 19,722 | 18,958 | 19,414 | 18,478 | 17,304 | 18,151 | 19,401 | 20,460 | 20,404 | 18,790 | 19,480 | 18,813 | 19,791 | 20,157 | 18,458 | 19,489 | 19,959 | 19,060 | 20,141 | 20,625 | 17,859 | 18,783 | 18,953 | 21,961 | 20,581 | 19,904 | 22,981 | 21,278 | 22,950 | 22,538 | 24,058 | 24,187 | 24,745 | 24,341 | 23,754 | 22,967 | 21,972 | 22,259 | 20,892 | 19,339 | 16,915 | 16,670 | 16,770 | 16,350 | 14,642 | 15,022 | 13,747 | 12,391 | 14,488 | 15,448 | 15,613 | 15,182 | 13,580 | 13,081 | 13,416 | 14,300 | 13,945 | 12,973 | 13,374 | 13,478 | 14,304 | 14,513 | 13,100 | 15,665 | 14,885 | 15,896 | 15,852 | 14,906 | 14,406 | 14,004 | 13,504 | 12,982 | 13,219 | 13,761 | 12,717 | 12,601 | 12,241 | 12,642 | 12,509 | 12,675 | 13,313 | 12,414 | 12,113 | 11,986 | 12,082 | 11,397 | 10,824 | 10,689 | 10,377 | 11,349 | 11,299 | 12,111 | 11,779 | 11,788 | 11,876 | 11,373 | 10,725 | 10,797 | 11,759 | 11,901 | 11,648 | 11,581 | 12,602 | 13,316 | 13,301 | 12,929 | 12,215 | 12,597 | 12,185 | 11,236 | 11,353 | 11,064 | 10,976 | 10,239 | 10,584 | 10,188 | 10,000 | |||||||
| SPDR ETFs Index: S&P Metals & Mining Select Industry Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P Metals & Mining Select Industry Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 16,592 | 17,979 | 16,541 | 16,806 | 15,732 | 15,912 | 16,639 | 15,190 | 13,727 | 14,555 | 14,400 | 14,891 | 14,038 | 12,254 | 13,599 | 14,625 | 15,408 | 15,657 | 13,647 | 14,680 | 13,182 | 11,548 | 13,295 | 13,061 | 11,751 | 14,441 | 15,134 | 16,512 | 14,161 | 11,224 | 12,028 | 11,037 | 11,692 | 11,172 | 11,843 | 12,012 | 11,498 | 12,382 | 10,799 | 10,621 | 9,535 | 8,593 | 8,878 | 7,747 | 6,453 | 6,142 | 6,532 | 6,028 | 5,586 | 5,462 | 5,061 | 4,233 | 5,773 | 6,485 | 7,624 | 7,162 | 6,816 | 6,600 | 6,586 | 7,223 | 7,327 | 6,220 | 7,348 | 7,573 | 7,841 | 7,778 | 6,640 | 7,325 | 7,730 | 8,625 | 8,552 | 9,054 | 8,937 | 9,333 | 8,706 | 8,476 | 8,971 | 9,184 | 8,979 | 7,869 | 7,804 | 7,923 | 7,968 | 7,727 | 7,360 | 7,088 | 7,308 | 7,452 | 7,915 | 8,161 | 7,442 | 7,598 | 6,206 | 6,470 | 6,243 | 7,054 | 5,920 | 5,328 | 5,959 | 4,949 | 4,024 | 3,368 | 3,627 | 3,867 | 4,153 | 4,035 | 4,931 | 4,857 | 5,842 | 6,496 | 6,758 | 6,273 | 6,984 | 6,482 | 7,368 | 7,982 | 8,362 | 8,726 | 10,345 | 9,782 | 10,000 | |||||||
| SPDR ETFs Index: S&P Oil & Gas Equipment & Services Select Industry Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P Oil & Gas Equipment & Services Select Industry Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 2,133 | 2,191 | 2,068 | 2,176 | 1,911 | 1,899 | 1,967 | 1,940 | 2,030 | 2,222 | 2,154 | 2,186 | 1,809 | 1,549 | 1,703 | 1,737 | 1,968 | 2,020 | 1,837 | 1,812 | 1,805 | 1,268 | 1,444 | 1,469 | 1,371 | 1,762 | 1,610 | 1,720 | 1,471 | 1,329 | 1,130 | 1,099 | 1,305 | 1,242 | 1,174 | 1,207 | 1,411 | 1,335 | 1,150 | 1,212 | 1,296 | 1,085 | 1,007 | 875 | 613 | 626 | 770 | 762 | 740 | 720 | 650 | 505 | 1,180 | 1,434 | 1,779 | 1,495 | 1,462 | 1,584 | 1,565 | 2,011 | 2,096 | 1,873 | 2,421 | 2,503 | 2,461 | 2,368 | 1,947 | 2,559 | 2,930 | 3,606 | 3,499 | 3,675 | 3,654 | 3,717 | 3,666 | 3,132 | 3,146 | 3,757 | 3,675 | 3,390 | 3,300 | 3,547 | 2,849 | 3,241 | 3,273 | 3,391 | 3,741 | 4,237 | 4,511 | 4,730 | 4,701 | 4,455 | 3,708 | 3,997 | 3,676 | 3,709 | 3,927 | 3,790 | 4,081 | 3,615 | 3,124 | 3,220 | 3,653 | 4,277 | 4,131 | 3,679 | 4,475 | 4,468 | 5,367 | 5,704 | 6,163 | 5,157 | 5,446 | 5,095 | 5,768 | 6,066 | 7,236 | 8,169 | 9,288 | 9,104 | 10,000 | |||||||
| SPDR ETFs Index: S&P Pharmaceuticals Select Industry Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P Pharmaceuticals Select Industry Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 9,399 | 9,506 | 9,357 | 10,138 | 10,409 | 9,836 | 9,740 | 8,627 | 8,362 | 9,278 | 10,174 | 10,174 | 9,545 | 9,149 | 9,751 | 9,517 | 9,539 | 10,072 | 9,478 | 9,894 | 9,740 | 9,250 | 9,553 | 9,863 | 9,675 | 9,636 | 9,480 | 10,389 | 9,912 | 9,967 | 10,556 | 10,438 | 10,930 | 10,807 | 11,037 | 11,458 | 11,769 | 11,463 | 11,172 | 11,401 | 12,084 | 11,752 | 11,781 | 10,818 | 9,975 | 9,821 | 9,989 | 9,618 | 9,717 | 9,726 | 9,447 | 8,120 | 9,254 | 10,196 | 10,281 | 9,174 | 8,678 | 7,987 | 7,931 | 8,494 | 8,893 | 8,207 | 8,889 | 9,292 | 9,566 | 8,945 | 8,170 | 9,693 | 9,609 | 10,784 | 11,072 | 10,308 | 9,534 | 9,325 | 8,907 | 9,271 | 9,200 | 9,869 | 9,617 | 9,490 | 8,951 | 9,382 | 9,443 | 9,502 | 9,471 | 9,162 | 9,459 | 9,192 | 9,185 | 8,503 | 8,572 | 8,598 | 8,701 | 9,673 | 9,809 | 10,047 | 9,143 | 9,496 | 9,223 | 8,775 | 8,877 | 9,389 | 11,160 | 11,012 | 9,953 | 9,578 | 11,811 | 13,339 | 12,702 | 12,640 | 11,936 | 12,554 | 12,549 | 11,301 | 10,962 | 11,120 | 10,774 | 10,238 | 10,014 | 9,172 | 10,000 | |||||||
| SPDR ETFs Index: S&P Retail Select Industry Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P Retail Select Industry Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 20,196 | 20,732 | 19,220 | 21,141 | 20,432 | 18,313 | 19,308 | 17,155 | 15,577 | 16,150 | 17,020 | 17,930 | 16,866 | 14,962 | 16,168 | 16,711 | 17,470 | 18,458 | 15,887 | 17,546 | 16,349 | 14,706 | 16,424 | 16,476 | 15,080 | 17,067 | 18,116 | 19,481 | 19,895 | 21,048 | 23,267 | 23,925 | 24,006 | 23,012 | 24,387 | 24,217 | 24,686 | 23,702 | 23,544 | 22,578 | 20,065 | 22,208 | 16,274 | 15,149 | 12,557 | 12,507 | 13,027 | 11,899 | 10,769 | 10,232 | 9,202 | 7,466 | 10,055 | 10,748 | 11,490 | 11,129 | 10,735 | 10,574 | 9,859 | 10,572 | 10,522 | 9,880 | 11,283 | 11,110 | 11,285 | 10,868 | 10,082 | 11,343 | 11,552 | 12,509 | 12,701 | 12,106 | 11,850 | 11,267 | 10,979 | 10,766 | 10,965 | 11,439 | 10,944 | 10,547 | 9,527 | 10,078 | 9,403 | 9,868 | 9,769 | 9,734 | 10,273 | 10,106 | 10,245 | 10,298 | 10,507 | 10,844 | 10,020 | 10,341 | 10,520 | 10,668 | 9,926 | 9,976 | 10,436 | 10,887 | 10,178 | 9,643 | 10,168 | 10,423 | 10,739 | 10,377 | 10,926 | 11,479 | 11,517 | 11,385 | 11,267 | 11,788 | 11,437 | 10,767 | 11,127 | 10,905 | 10,223 | 9,891 | 10,251 | 9,666 | 10,000 | |||||||
| SPDR ETFs Index: S&P Semiconductor Select Industry Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P Semiconductor Select Industry Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 71,285 | 70,796 | 64,597 | 66,846 | 64,306 | 60,522 | 64,605 | 57,201 | 48,668 | 56,184 | 61,079 | 65,583 | 63,352 | 58,272 | 50,974 | 59,611 | 56,582 | 55,983 | 47,738 | 52,975 | 44,689 | 43,291 | 48,620 | 51,849 | 43,126 | 51,858 | 48,808 | 58,870 | 58,593 | 58,023 | 68,903 | 67,437 | 62,670 | 56,020 | 57,337 | 54,045 | 54,405 | 50,524 | 49,982 | 51,622 | 52,625 | 50,699 | 48,161 | 44,354 | 37,339 | 35,401 | 35,646 | 34,278 | 31,499 | 30,134 | 27,967 | 23,555 | 26,739 | 28,594 | 29,664 | 27,327 | 26,223 | 25,104 | 24,558 | 25,543 | 23,525 | 20,470 | 24,085 | 21,819 | 21,849 | 19,886 | 17,953 | 19,557 | 18,607 | 20,985 | 21,734 | 20,531 | 19,939 | 20,572 | 18,464 | 19,277 | 19,581 | 20,188 | 19,185 | 19,523 | 19,426 | 17,978 | 17,485 | 17,793 | 16,880 | 17,618 | 16,205 | 16,470 | 16,285 | 15,863 | 15,275 | 14,922 | 13,834 | 14,439 | 13,944 | 13,514 | 12,043 | 12,268 | 11,439 | 12,018 | 11,212 | 11,149 | 11,776 | 12,141 | 11,421 | 10,140 | 10,287 | 10,657 | 11,545 | 12,318 | 11,331 | 11,715 | 11,746 | 10,602 | 10,655 | 10,097 | 9,611 | 9,788 | 10,262 | 9,277 | 10,000 | |||||||
| SPDR ETFs Index: S&P Software & Services Select Industry Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P Software & Services Select Industry Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 36,144 | 34,769 | 34,640 | 37,245 | 36,981 | 35,269 | 35,986 | 32,566 | 28,615 | 30,329 | 32,192 | 34,016 | 31,824 | 30,486 | 27,778 | 29,384 | 28,631 | 29,057 | 25,900 | 26,838 | 27,343 | 25,469 | 27,954 | 28,713 | 26,423 | 29,029 | 31,065 | 35,014 | 34,367 | 35,463 | 39,363 | 39,392 | 43,063 | 40,764 | 42,331 | 40,683 | 40,665 | 38,126 | 38,682 | 37,277 | 38,052 | 36,478 | 36,466 | 33,061 | 27,905 | 28,243 | 29,384 | 27,502 | 26,335 | 25,234 | 22,346 | 19,377 | 23,259 | 24,681 | 23,883 | 24,110 | 22,449 | 21,887 | 22,571 | 23,235 | 22,556 | 21,624 | 23,092 | 22,090 | 21,649 | 19,892 | 17,570 | 18,965 | 18,789 | 21,204 | 21,249 | 19,166 | 18,869 | 18,803 | 18,012 | 17,566 | 17,517 | 17,335 | 16,105 | 16,174 | 15,918 | 15,253 | 15,008 | 14,819 | 14,484 | 14,446 | 13,776 | 13,591 | 13,428 | 12,982 | 12,575 | 12,713 | 12,354 | 12,766 | 12,552 | 12,344 | 11,596 | 11,669 | 11,144 | 10,931 | 10,232 | 10,281 | 11,475 | 11,916 | 11,445 | 10,674 | 10,934 | 11,653 | 11,624 | 11,593 | 11,340 | 11,250 | 11,251 | 10,277 | 10,662 | 10,560 | 10,299 | 9,719 | 10,035 | 9,670 | 10,000 | |||||||
| SPDR ETFs Index: S&P Telecom Select Industry Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P Telecom Select Industry Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 15,592 | 15,356 | 13,607 | 14,847 | 15,005 | 15,291 | 15,943 | 13,999 | 13,146 | 14,116 | 15,385 | 14,567 | 15,388 | 14,431 | 14,837 | 16,025 | 16,070 | 17,111 | 16,075 | 17,247 | 17,307 | 15,130 | 16,969 | 17,123 | 15,277 | 16,452 | 16,059 | 18,149 | 17,539 | 17,848 | 19,856 | 18,595 | 18,658 | 18,557 | 19,578 | 19,335 | 19,755 | 19,240 | 18,417 | 18,056 | 17,730 | 17,653 | 16,301 | 15,097 | 13,058 | 12,925 | 14,201 | 14,479 | 13,330 | 13,258 | 12,713 | 11,321 | 12,553 | 13,020 | 13,294 | 13,090 | 12,829 | 12,701 | 12,628 | 13,427 | 12,779 | 12,276 | 13,767 | 13,309 | 13,554 | 12,853 | 11,829 | 13,235 | 13,109 | 14,261 | 14,331 | 13,249 | 13,448 | 13,027 | 12,940 | 12,817 | 12,743 | 12,941 | 12,630 | 12,989 | 12,746 | 12,833 | 12,899 | 13,187 | 12,930 | 12,937 | 12,960 | 12,986 | 12,962 | 12,950 | 12,641 | 12,285 | 11,521 | 11,924 | 11,440 | 11,232 | 10,562 | 10,477 | 10,253 | 10,305 | 9,827 | 9,129 | 10,054 | 10,338 | 10,289 | 9,470 | 9,912 | 10,327 | 10,244 | 10,639 | 10,511 | 10,361 | 10,693 | 9,810 | 10,210 | 10,181 | 10,035 | 9,712 | 10,087 | 9,788 | 10,000 | |||||||
| SPDR ETFs Index: S&P Transportation Select Industry Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P Transportation Select Industry Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 18,863 | 18,582 | 18,176 | 20,398 | 19,882 | 18,849 | 20,023 | 17,862 | 16,156 | 17,929 | 19,185 | 21,024 | 19,960 | 17,116 | 17,346 | 17,234 | 18,216 | 18,339 | 15,928 | 17,691 | 16,717 | 15,055 | 17,168 | 18,110 | 15,990 | 18,459 | 19,175 | 20,940 | 20,598 | 20,126 | 22,126 | 21,126 | 21,229 | 20,218 | 20,061 | 19,370 | 19,814 | 21,200 | 20,717 | 20,360 | 18,786 | 16,087 | 16,460 | 16,018 | 13,483 | 13,357 | 13,862 | 12,505 | 12,129 | 11,944 | 11,008 | 10,012 | 12,583 | 14,363 | 14,688 | 14,678 | 14,190 | 13,880 | 13,385 | 14,281 | 13,871 | 12,690 | 14,227 | 13,613 | 13,901 | 13,481 | 12,034 | 14,259 | 13,262 | 15,012 | 15,118 | 14,623 | 14,072 | 14,363 | 13,778 | 13,956 | 13,927 | 14,849 | 14,454 | 14,013 | 13,284 | 13,272 | 12,531 | 11,977 | 12,216 | 11,575 | 11,852 | 11,637 | 12,215 | 11,942 | 11,839 | 11,777 | 10,378 | 10,342 | 10,183 | 10,172 | 9,518 | 9,754 | 9,857 | 9,987 | 9,175 | 8,619 | 9,297 | 10,042 | 10,074 | 9,434 | 9,912 | 10,683 | 10,427 | 10,694 | 10,928 | 11,419 | 11,556 | 10,757 | 11,620 | 11,398 | 10,488 | 9,937 | 10,054 | 9,731 | 10,000 | |||||||
| SPDR ETFs Index: MSCI USA Factor Mix A-Series Capped Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MSCI USA Factor Mix A-Series Capped Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 29,460 | 28,827 | 27,693 | 28,879 | 27,903 | 26,762 | 26,211 | 25,102 | 23,328 | 23,730 | 24,639 | 24,919 | 24,179 | 22,873 | 23,007 | 22,618 | 21,859 | 22,498 | 21,511 | 22,589 | 21,224 | 19,579 | 21,431 | 22,322 | 20,841 | 22,404 | 22,249 | 23,871 | 22,971 | 23,760 | 25,013 | 23,709 | 24,045 | 22,676 | 23,881 | 23,294 | 22,689 | 22,197 | 21,858 | 20,956 | 19,923 | 19,356 | 19,708 | 19,084 | 17,149 | 17,654 | 18,140 | 17,203 | 16,504 | 16,457 | 15,692 | 14,126 | 16,086 | 17,548 | 17,511 | 17,024 | 16,501 | 16,225 | 15,926 | 16,073 | 15,759 | 14,793 | 15,616 | 15,056 | 14,739 | 14,198 | 13,202 | 14,428 | 14,107 | 14,938 | 14,837 | 14,375 | 13,869 | 13,751 | 13,487 | 13,526 | 13,749 | 14,278 | 13,618 | 13,487 | 13,054 | 12,717 | 12,482 | 12,426 | 12,206 | 12,197 | 12,018 | 11,876 | 11,869 | 11,369 | 11,212 | 10,982 | 10,637 | 10,855 | 10,862 | 10,891 | 10,546 | 10,429 | 10,283 | 10,296 | 9,666 | 9,633 | 10,023 | 10,131 | 10,115 | 9,392 | 9,522 | 10,055 | 9,804 | 10,010 | 9,893 | $ 10,000 | ||||||||||||||||
| SPDR ETFs Index: ICE Exchange-Listed Fixed & Adjustable Rate Preferred Securities Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE Exchange-Listed Fixed & Adjustable Rate Preferred Securities Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 13,980 | 13,930 | 13,640 | 14,148 | 14,136 | 13,979 | 13,466 | 13,179 | 12,122 | 12,768 | 12,920 | 13,112 | 12,946 | 12,861 | 13,184 | 12,877 | 13,504 | 13,872 | 12,315 | 12,908 | 12,136 | 12,802 | 13,092 | 13,777 | 12,983 | 13,472 | 12,988 | 13,919 | 13,979 | 14,589 | 15,167 | 14,800 | 15,138 | 15,083 | 15,077 | 15,130 | 15,156 | 14,881 | 14,770 | 14,655 | 14,279 | 14,572 | 14,867 | 14,545 | 14,273 | 14,221 | 14,297 | 14,120 | 13,464 | 13,665 | 13,493 | 12,519 | 13,551 | 14,056 | 13,915 | 13,629 | 13,770 | 13,738 | 13,626 | 13,496 | 13,211 | 13,069 | 12,968 | 12,860 | 12,731 | 12,527 | 11,818 | 11,872 | 12,190 | 12,412 | 12,619 | 12,481 | 12,454 | 12,329 | 12,170 | 12,301 | 12,209 | 12,017 | 12,363 | 12,366 | 12,357 | 12,368 | 12,357 | 12,324 | 12,265 | 12,130 | 12,011 | 11,844 | 11,757 | 11,560 | 11,191 | 11,227 | 11,782 | 11,868 | 11,973 | 11,948 | 11,868 | 11,699 | 11,515 | 11,427 | 11,234 | 11,223 | 11,234 | 11,136 | 11,033 | 10,771 | 10,764 | 10,762 | 10,534 | 10,672 | 10,701 | 10,743 | 10,680 | 10,595 | 10,338 | 10,380 | 10,241 | 10,076 | 10,140 | 9,958 | 10,000 | |||||||
| SPDR ETFs Index: FactSet Innovative Technology Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | FactSet Innovative Technology Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 31,819 | 30,602 | 30,144 | 32,466 | 32,632 | 31,290 | 31,720 | 28,449 | 24,509 | 26,831 | 29,121 | 31,355 | 28,601 | 26,501 | 23,768 | 25,905 | 24,601 | 25,161 | 21,684 | 22,238 | 22,120 | 21,540 | 24,224 | 24,418 | 23,313 | 25,499 | 27,538 | 33,053 | 34,718 | 35,311 | 41,208 | 43,969 | 49,510 | 46,476 | 48,847 | 47,917 | 48,708 | 44,890 | 46,524 | 44,925 | 49,804 | 47,792 | 46,254 | 42,538 | 36,487 | 36,233 | 36,836 | 34,335 | 31,148 | 28,484 | 24,618 | 21,168 | 24,464 | 25,362 | 24,275 | 24,225 | 22,523 | 21,302 | 22,262 | 23,056 | 22,523 | 21,280 | 23,261 | 22,240 | 21,894 | 20,300 | 17,628 | 19,146 | 18,782 | 21,635 | 21,966 | 19,601 | 19,901 | 19,977 | 18,246 | 18,220 | 18,092 | 17,561 | 16,229 | 16,433 | 16,335 | 15,885 | 15,378 | 14,901 | 14,300 | 14,256 | 13,625 | 13,070 | 12,791 | 12,497 | 11,933 | 12,320 | 11,940 | 12,614 | 12,425 | 12,073 | 10,984 | 11,040 | 10,745 | 10,550 | 9,914 | 9,849 | $ 10,000 | |||||||||||||||||||||||||
| SPDR ETFs Index: MSCI USA Gender Diversity Select Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MSCI USA Gender Diversity Select Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 24,023 | 23,134 | 22,267 | 23,353 | 22,622 | 21,353 | 20,847 | 19,930 | 18,369 | 18,557 | 19,403 | 19,778 | 19,160 | 18,017 | 18,273 | 17,961 | 17,522 | 18,005 | 17,007 | 17,976 | 17,305 | 15,590 | 16,979 | 17,481 | 16,204 | 17,621 | 17,848 | 19,605 | 19,311 | 20,007 | 21,663 | 21,103 | 22,611 | 21,321 | 22,322 | 21,812 | 21,417 | 20,975 | 20,827 | 19,931 | 19,515 | 18,392 | 18,796 | 17,773 | 15,549 | 15,970 | 16,316 | 15,297 | 14,785 | 14,673 | 13,829 | 12,226 | 14,518 | 15,727 | 15,914 | 15,689 | 15,212 | 15,026 | 14,891 | 15,169 | 15,013 | 14,050 | 14,808 | 14,397 | 14,240 | 13,822 | 12,836 | 14,130 | 13,663 | 14,628 | 14,513 | 14,191 | 13,706 | 13,509 | 13,343 | 13,183 | 13,375 | 13,901 | 13,297 | 13,165 | 12,711 | 12,560 | 12,211 | 12,198 | 12,019 | 11,889 | 11,807 | 11,641 | 11,720 | 11,227 | 11,079 | 11,020 | 10,630 | 10,855 | 10,915 | 10,952 | 10,537 | 10,483 | 10,469 | 10,309 | $ 10,000 | |||||||||||||||||||||||||||
| SPDR ETFs Index: Bloomberg Emerging USD Bond Core Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg Emerging USD Bond Core Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 9,166 | 9,111 | 8,925 | 9,143 | 9,009 | 8,989 | 9,105 | 8,668 | 8,180 | 8,318 | 8,556 | 8,707 | 8,558 | 8,437 | 8,515 | 8,469 | 8,349 | 8,524 | 8,283 | 8,259 | 7,676 | 7,648 | 8,163 | 8,229 | 7,969 | 8,465 | 8,434 | 8,955 | 9,166 | 9,848 | 10,181 | 10,048 | 10,213 | 10,206 | 10,431 | 10,331 | 10,286 | 10,192 | 10,097 | $ 10,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| SPDR ETFs Index: Bloomberg 3-12 Month U.S. Treasury Bill Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg 3-12 Month U.S. Treasury Bill Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,892 | 10,848 | 10,796 | 10,754 | 10,707 | 10,670 | 10,626 | 10,572 | 10,519 | 10,470 | 10,425 | 10,378 | 10,333 | 10,290 | 10,259 | 10,225 | 10,176 | 10,145 | 10,109 | 10,070 | 10,036 | 10,026 | 10,016 | 10,004 | 9,997 | 10,007 | 9,998 | 9,998 | 10,002 | 10,002 | 10,010 | 10,010 | 10,010 | 10,010 | 10,010 | 10,009 | 10,009 | 10,010 | 10,009 | 10,009 | 10,007 | 10,006 | 10,005 | 10,004 | 10,002 | 10,001 | $ 10,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| SPDR ETFs Index: Bloomberg 1-3 Month U.S. Treasury Bill Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg 1-3 Month U.S. Treasury Bill Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,601 | 11,553 | 11,497 | 11,447 | 11,395 | 11,347 | 11,298 | 11,245 | 11,195 | 11,144 | 11,095 | 11,044 | 10,996 | 10,949 | 10,905 | 10,863 | 10,820 | 10,782 | 10,746 | 10,708 | 10,674 | 10,651 | 10,630 | 10,610 | 10,601 | 10,596 | 10,590 | 10,588 | 10,586 | 10,585 | 10,585 | 10,584 | 10,584 | 10,584 | 10,583 | 10,583 | 10,582 | 10,583 | 10,582 | 10,582 | 10,582 | 10,581 | 10,580 | 10,580 | 10,579 | 10,578 | 10,577 | 10,576 | 10,575 | 10,574 | 10,573 | 10,573 | 10,551 | 10,537 | 10,523 | 10,508 | 10,496 | 10,477 | 10,459 | 10,440 | 10,421 | 10,399 | 10,377 | 10,357 | 10,336 | 10,317 | 10,296 | 10,276 | 10,257 | 10,239 | 10,222 | 10,206 | 10,190 | 10,175 | 10,159 | 10,145 | 10,132 | 10,123 | 10,112 | 10,103 | 10,095 | 10,086 | 10,077 | 10,068 | 10,060 | 10,052 | 10,046 | 10,040 | 10,038 | 10,034 | 10,030 | 10,027 | 10,025 | 10,023 | 10,020 | 10,018 | 10,016 | 10,013 | 10,012 | 10,010 | 10,006 | 10,004 | 10,004 | 10,002 | 10,002 | 10,002 | 10,002 | 10,001 | 10,001 | 10,001 | 10,001 | 10,001 | 10,001 | 10,001 | 10,001 | 10,001 | 10,001 | 10,001 | 10,000 | 10,000 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg 1-10 Year U.S. Government Inflation-Linked Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg 1-10 Year U.S. Government Inflation-Linked Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 12,274 | 12,185 | 12,019 | 12,134 | 12,040 | 12,144 | 12,098 | 11,861 | 11,648 | 11,659 | 11,770 | 11,817 | 11,764 | 11,819 | 11,954 | 11,935 | 11,608 | 11,743 | 11,590 | 11,667 | 11,527 | 11,402 | 12,001 | 12,292 | 11,861 | 12,163 | 12,175 | 12,284 | 12,473 | 12,355 | 12,514 | 12,450 | 12,420 | 12,321 | 12,375 | 12,404 | 12,114 | 12,105 | 11,998 | 11,839 | 11,822 | 11,914 | 11,840 | 11,693 | 11,605 | 11,653 | 11,695 | 11,534 | 11,362 | 11,240 | 11,171 | 10,945 | 11,150 | 11,051 | 10,906 | 10,832 | 10,830 | 10,799 | 10,894 | 10,750 | 10,733 | 10,631 | 10,509 | 10,464 | 10,325 | 10,315 | 10,199 | 10,159 | 10,124 | 10,205 | 10,278 | 10,208 | 10,251 | 10,220 | 10,173 | 10,188 | 10,103 | 10,151 | 10,229 | 10,179 | 10,189 | 10,174 | 10,223 | 10,152 | 10,102 | 10,183 | 10,188 | 10,144 | 10,135 | 10,110 | 10,035 | 10,025 | 10,174 | 10,188 | 10,110 | 10,162 | 10,129 | 9,967 | 10,026 | 9,998 | 9,856 | 9,775 | 9,649 | 9,708 | 9,721 | 9,719 | 9,744 | 9,797 | 9,803 | 9,856 | 9,902 | 9,817 | 9,854 | 9,940 | 9,700 | 9,853 | 9,846 | 9,801 | 9,979 | 9,975 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg U.S. Convertible Liquid Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Convertible Liquid Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 22,717 | 22,491 | 22,048 | 22,854 | 22,429 | 22,224 | 22,514 | 21,250 | 20,177 | 21,006 | 21,533 | 22,129 | 21,539 | 20,451 | 20,271 | 20,544 | 20,499 | 20,818 | 19,639 | 20,158 | 19,732 | 19,204 | 20,439 | 20,329 | 19,342 | 20,523 | 21,258 | 22,925 | 22,744 | 22,828 | 24,566 | 24,664 | 25,795 | 24,979 | 25,519 | 25,049 | 25,317 | 24,565 | 24,895 | 24,182 | 25,175 | 24,446 | 23,834 | 22,255 | 19,556 | 19,548 | 20,086 | 18,335 | 16,979 | 15,999 | 14,921 | 13,426 | 15,461 | 15,949 | 15,431 | 14,985 | 14,582 | 14,298 | 14,381 | 14,594 | 14,388 | 13,756 | 14,484 | 14,091 | 14,101 | 13,571 | 12,568 | 13,291 | 12,994 | 13,851 | 13,929 | 13,614 | 13,567 | 13,583 | 13,098 | 13,098 | 13,121 | 13,425 | 12,798 | 12,796 | 12,815 | 12,557 | 12,492 | 12,440 | 12,054 | 11,901 | 11,787 | 11,573 | 11,466 | 11,251 | 10,910 | 10,760 | 10,745 | 10,862 | 10,715 | 10,584 | 10,141 | 10,105 | 9,997 | 9,894 | 9,424 | 9,370 | 9,853 | 9,988 | 10,041 | 9,640 | 9,838 | 10,147 | 10,173 | 10,482 | 10,228 | 10,106 | 10,153 | 9,786 | 9,879 | 10,073 | 9,957 | 9,874 | 10,165 | 9,872 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg Municipal Managed Money 1-25 Years Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg Municipal Managed Money 1-25 Years Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 12,577 | 12,367 | 12,449 | 12,642 | 12,668 | 12,665 | 12,754 | 12,421 | 11,589 | 11,680 | 12,095 | 12,313 | 12,272 | 12,150 | 12,298 | 12,342 | 12,032 | 12,358 | 11,983 | 11,941 | 11,362 | 11,427 | 11,913 | 12,215 | 11,857 | 12,069 | 11,854 | 12,239 | 12,709 | 12,747 | 13,167 | 13,143 | 13,011 | 13,052 | 13,171 | 13,229 | 13,104 | 13,083 | 13,051 | 12,934 | 12,851 | 13,119 | 13,064 | 13,010 | 12,798 | 12,853 | 12,849 | 12,943 | 12,728 | 12,698 | 12,233 | 12,352 | 12,726 | 12,561 | 12,315 | 12,275 | 12,246 | 12,226 | 12,351 | 12,148 | 12,036 | 11,994 | 11,823 | 11,784 | 11,590 | 11,524 | 11,421 | 11,263 | 11,114 | 11,197 | 11,284 | 11,257 | 11,237 | 11,237 | 11,094 | 11,144 | 11,091 | 11,139 | 11,320 | 11,174 | 11,241 | 11,209 | 11,283 | 11,202 | 11,104 | 11,153 | 10,947 | 10,852 | 10,826 | 10,756 | 10,692 | 10,528 | 11,020 | 11,170 | 11,235 | 11,227 | 11,229 | 11,019 | 10,994 | 10,897 | 10,857 | 10,848 | 10,691 | 10,597 | 10,542 | 10,503 | 10,411 | 10,382 | 10,283 | 10,300 | 10,331 | 10,412 | 10,372 | 10,533 | 10,309 | 10,248 | 10,241 | 10,166 | 10,173 | 10,026 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg Managed Money Municipal Short Term Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg Managed Money Municipal Short Term Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,091 | 10,996 | 11,023 | 11,081 | 11,112 | 11,104 | 11,140 | 11,021 | 10,719 | 10,709 | 10,838 | 10,876 | 10,853 | 10,785 | 10,865 | 10,929 | 10,752 | 10,936 | 10,773 | 10,751 | 10,531 | 10,533 | 10,747 | 10,904 | 10,765 | 10,775 | 10,637 | 10,754 | 10,945 | 10,978 | 11,178 | 11,172 | 11,164 | 11,184 | 11,216 | 11,222 | 11,176 | 11,224 | 11,225 | 11,197 | 11,169 | 11,234 | 11,219 | 11,207 | 11,176 | 11,199 | 11,185 | 11,196 | 11,134 | 11,142 | 10,899 | 10,879 | 11,001 | 10,967 | 10,887 | 10,865 | 10,843 | 10,793 | 10,857 | 10,831 | 10,764 | 10,717 | 10,642 | 10,645 | 10,599 | 10,567 | 10,501 | 10,426 | 10,364 | 10,375 | 10,420 | 10,427 | 10,396 | 10,358 | 10,293 | 10,326 | 10,337 | 10,340 | 10,332 | 10,305 | 10,410 | 10,416 | 10,377 | 10,429 | 10,377 | 10,412 | 10,350 | 10,310 | 10,314 | 10,256 | 10,173 | 10,135 | 10,304 | 10,323 | 10,375 | 10,336 | 10,305 | 10,246 | 10,262 | 10,231 | 10,266 | 10,231 | 10,154 | 10,157 | 10,181 | 10,149 | 10,115 | 10,106 | 10,068 | 10,043 | 10,059 | 10,065 | 10,070 | 10,104 | 10,017 | 10,054 | 10,049 | 10,037 | 10,045 | 10,011 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg Municipal Yield Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg Municipal Yield Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 15,326 | 14,989 | 14,907 | 15,031 | 14,882 | 14,786 | 14,855 | 14,440 | 13,413 | 13,618 | 14,095 | 14,318 | 14,221 | 13,990 | 14,088 | 14,036 | 13,788 | 14,201 | 13,632 | 13,641 | 12,907 | 13,157 | 13,949 | 14,271 | 13,783 | 14,192 | 14,040 | 14,532 | 15,074 | 15,124 | 15,563 | 15,526 | 15,337 | 15,403 | 15,509 | 15,543 | 15,363 | 15,201 | 15,054 | 14,851 | 14,703 | 14,875 | 14,597 | 14,348 | 14,031 | 14,023 | 14,017 | 13,997 | 13,623 | 13,153 | 12,674 | 13,097 | 14,534 | 14,246 | 13,916 | 13,869 | 13,817 | 13,791 | 13,823 | 13,524 | 13,427 | 13,347 | 13,124 | 13,054 | 12,753 | 12,636 | 12,564 | 12,440 | 12,396 | 12,548 | 12,609 | 12,517 | 12,450 | 12,379 | 12,186 | 12,150 | 12,022 | 12,039 | 12,068 | 11,942 | 11,910 | 11,918 | 12,023 | 11,906 | 11,833 | 11,841 | 11,717 | 11,594 | 11,562 | 11,388 | 11,277 | 11,217 | 11,702 | 11,801 | 11,778 | 11,716 | 11,674 | 11,382 | 11,268 | 11,177 | 11,069 | 11,002 | 10,928 | 10,853 | 10,801 | 10,711 | 10,565 | 10,514 | 10,466 | 10,633 | 10,597 | 10,642 | 10,637 | 10,691 | 10,511 | 10,438 | 10,370 | 10,358 | 10,309 | 10,055 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg High Yield Very Liquid Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg High Yield Very Liquid Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 14,570 | 14,426 | 14,268 | 14,406 | 14,235 | 14,203 | 14,225 | 13,693 | 13,070 | 13,231 | 13,410 | 13,371 | 13,188 | 12,955 | 13,101 | 12,980 | 12,816 | 13,010 | 12,504 | 12,615 | 12,346 | 11,985 | 12,510 | 12,891 | 12,090 | 13,041 | 12,978 | 13,505 | 13,663 | 13,782 | 14,190 | 13,895 | 14,045 | 14,092 | 14,101 | 14,026 | 13,989 | 13,822 | 13,790 | 13,656 | 13,618 | 13,593 | 13,578 | 13,352 | 12,859 | 12,814 | 12,964 | 12,862 | 12,257 | 12,255 | 11,718 | 11,245 | 12,566 | 12,798 | 12,825 | 12,564 | 12,520 | 12,484 | 12,450 | 12,387 | 12,331 | 12,019 | 12,199 | 12,025 | 11,900 | 11,702 | 11,126 | 11,391 | 11,470 | 11,677 | 11,615 | 11,528 | 11,384 | 11,337 | 11,350 | 11,279 | 11,353 | 11,456 | 11,418 | 11,395 | 11,432 | 11,397 | 11,310 | 11,320 | 11,192 | 11,177 | 11,074 | 10,951 | 10,980 | 10,824 | 10,690 | 10,486 | 10,529 | 10,519 | 10,465 | 10,239 | 9,978 | 9,917 | 9,869 | 9,500 | 9,094 | 9,022 | 9,163 | 9,426 | 9,658 | 9,360 | 9,639 | 9,830 | 9,887 | 10,069 | 10,043 | 9,923 | 10,004 | 9,736 | 9,672 | 9,829 | 9,925 | 9,785 | 10,032 | 9,837 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg US High Yield 350mn Cash Pay 0-5 Yr 2% Capped Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg US High Yield 350mn Cash Pay 0-5 Yr 2% Capped Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 14,945 | 14,812 | 14,678 | 14,767 | 14,637 | 14,551 | 14,553 | 14,127 | 13,656 | 13,787 | 13,867 | 13,790 | 13,627 | 13,416 | 13,492 | 13,383 | 13,290 | 13,370 | 12,983 | 13,036 | 12,811 | 12,518 | 12,845 | 13,016 | 12,448 | 13,121 | 13,127 | 13,390 | 13,497 | 13,572 | 13,764 | 13,578 | 13,689 | 13,676 | 13,648 | 13,584 | 13,581 | 13,463 | 13,406 | 13,289 | 13,195 | 13,090 | 13,006 | 12,788 | 12,352 | 12,298 | 12,369 | 12,233 | 11,827 | 11,697 | 11,281 | 10,912 | 12,263 | 12,422 | 12,427 | 12,203 | 12,207 | 12,201 | 12,174 | 12,175 | 12,138 | 11,961 | 12,069 | 11,963 | 11,894 | 11,739 | 11,314 | 11,555 | 11,619 | 11,758 | 11,688 | 11,620 | 11,503 | 11,449 | 11,409 | 11,331 | 11,354 | 11,387 | 11,294 | 11,259 | 11,294 | 11,252 | 11,176 | 11,176 | 11,090 | 11,079 | 11,003 | 10,905 | 10,918 | 10,789 | 10,670 | 10,490 | 10,495 | 10,446 | 10,355 | 10,195 | 9,994 | 9,902 | 9,811 | 9,469 | 9,108 | 9,079 | 9,247 | 9,459 | 9,652 | 9,464 | 9,675 | 9,857 | 9,965 | 10,058 | 10,014 | 9,916 | 9,962 | 9,759 | 9,749 | 9,864 | 9,899 | 9,842 | 9,990 | 9,895 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg U.S. Dollar Floating Rate | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Dollar Floating Rate | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 12,604 | 12,546 | 12,477 | 12,411 | 12,341 | 12,268 | 12,191 | 12,121 | 12,056 | 11,999 | 11,937 | 11,874 | 11,805 | 11,737 | 11,660 | 11,587 | 11,589 | 11,523 | 11,425 | 11,366 | 11,313 | 11,297 | 11,275 | 11,220 | 11,202 | 11,239 | 11,239 | 11,236 | 11,264 | 11,265 | 11,258 | 11,259 | 11,265 | 11,265 | 11,259 | 11,254 | 11,251 | 11,245 | 11,234 | 11,228 | 11,231 | 11,222 | 11,208 | 11,198 | 11,185 | 11,171 | 11,166 | 11,144 | 11,105 | 11,031 | 10,951 | 10,763 | 11,104 | 11,094 | 11,058 | 11,032 | 11,006 | 10,971 | 10,941 | 10,921 | 10,886 | 10,854 | 10,830 | 10,786 | 10,747 | 10,704 | 10,630 | 10,645 | 10,657 | 10,643 | 10,620 | 10,592 | 10,561 | 10,541 | 10,521 | 10,487 | 10,478 | 10,466 | 10,438 | 10,423 | 10,409 | 10,386 | 10,366 | 10,353 | 10,331 | 10,313 | 10,296 | 10,278 | 10,263 | 10,238 | 10,217 | 10,203 | 10,189 | 10,174 | 10,166 | 10,139 | 10,115 | 10,110 | 10,093 | 10,069 | 10,046 | 10,046 | 10,044 | 10,045 | 10,036 | 10,029 | 10,050 | 10,051 | 10,051 | 10,054 | 10,045 | 10,033 | 10,025 | 10,011 | 10,008 | 10,019 | 10,020 | 10,023 | 10,017 | 10,007 | 10,000 | |||||||
| SPDR ETFs Index: MarketAxess U.S. Investment Grade 400 Corporate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | MarketAxess U.S. Investment Grade 400 Corporate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,508 | 10,433 | 10,222 | 10,519 | 10,377 | 10,555 | 10,587 | 10,138 | 9,498 | 9,698 | 10,001 | 10,095 | 10,073 | 10,026 | 10,174 | 10,118 | 9,746 | 10,115 | 9,669 | 9,742 | 9,231 | 9,294 | 9,843 | 10,220 | 9,820 | 10,140 | $ 10,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| SPDR ETFs Index: Bloomberg U.S. Government Inflation-Linked Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Government Inflation-Linked Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 12,096 | 12,006 | 11,795 | 12,005 | 11,908 | 12,036 | 12,018 | 11,697 | 11,379 | 11,473 | 11,699 | 11,810 | 11,803 | 11,837 | 11,980 | 11,972 | 11,632 | 11,795 | 11,573 | 11,696 | 11,476 | 11,333 | 12,168 | 12,505 | 11,962 | 12,371 | 12,524 | 12,803 | 13,055 | 12,948 | 13,242 | 13,200 | 13,069 | 12,917 | 13,018 | 13,045 | 12,689 | 12,600 | 12,448 | 12,265 | 12,298 | 12,528 | 12,493 | 12,353 | 12,208 | 12,292 | 12,339 | 12,215 | 11,913 | 11,778 | 11,749 | 11,416 | 11,623 | 11,452 | 11,200 | 11,165 | 11,145 | 11,118 | 11,284 | 10,999 | 10,956 | 10,868 | 10,676 | 10,642 | 10,440 | 10,443 | 10,299 | 10,242 | 10,188 | 10,350 | 10,468 | 10,392 | 10,446 | 10,400 | 10,358 | 10,364 | 10,249 | 10,361 | 10,453 | 10,349 | 10,330 | 10,307 | 10,376 | 10,258 | 10,215 | 10,316 | 10,320 | 10,258 | 10,263 | 10,208 | 10,120 | 10,135 | 10,344 | 10,394 | 10,342 | 10,387 | 10,284 | 10,064 | 10,140 | 10,101 | 9,915 | 9,799 | 9,651 | 9,734 | 9,742 | 9,712 | 9,778 | 9,862 | 9,832 | 9,940 | 10,032 | 9,963 | 10,012 | 10,144 | 9,819 | 9,920 | 9,890 | 9,795 | 10,066 | 10,011 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg 1-3 Year U.S. Treasury Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg 1-3 Year U.S. Treasury Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,238 | 11,174 | 11,097 | 11,139 | 11,100 | 11,148 | 11,108 | 10,981 | 10,868 | 10,831 | 10,834 | 10,792 | 10,755 | 10,811 | 10,849 | 10,820 | 10,646 | 10,729 | 10,651 | 10,632 | 10,563 | 10,573 | 10,699 | 10,785 | 10,739 | 10,808 | 10,744 | 10,795 | 10,950 | 10,995 | 11,073 | 11,096 | 11,101 | 11,137 | 11,148 | 11,149 | 11,130 | 11,149 | 11,139 | 11,134 | 11,137 | 11,143 | 11,140 | 11,134 | 11,130 | 11,135 | 11,132 | 11,134 | 11,124 | 11,120 | 11,112 | 11,097 | 10,956 | 10,859 | 10,799 | 10,776 | 10,780 | 10,744 | 10,757 | 10,670 | 10,682 | 10,627 | 10,549 | 10,528 | 10,463 | 10,452 | 10,424 | 10,341 | 10,303 | 10,289 | 10,301 | 10,267 | 10,269 | 10,268 | 10,230 | 10,267 | 10,233 | 10,247 | 10,308 | 10,309 | 10,339 | 10,349 | 10,384 | 10,347 | 10,318 | 10,335 | 10,310 | 10,276 | 10,270 | 10,254 | 10,236 | 10,235 | 10,336 | 10,359 | 10,341 | 10,375 | 10,379 | 10,277 | 10,293 | 10,294 | 10,270 | 10,245 | 10,134 | 10,148 | 10,179 | 10,202 | 10,149 | 10,150 | 10,132 | 10,141 | 10,132 | 10,130 | 10,089 | 10,139 | 10,041 | 10,074 | 10,044 | 9,996 | 10,013 | 9,979 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg 3-10 Year U.S. Treasury Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg 3-10 Year U.S. Treasury Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,060 | 10,944 | 10,791 | 11,021 | 10,955 | 11,124 | 11,112 | 10,810 | 10,488 | 10,578 | 10,755 | 10,776 | 10,784 | 10,918 | 11,033 | 10,952 | 10,628 | 10,895 | 10,657 | 10,716 | 10,453 | 10,528 | 10,885 | 11,206 | 10,987 | 11,077 | 10,995 | 11,266 | 11,652 | 11,706 | 11,907 | 11,943 | 11,887 | 11,976 | 12,093 | 12,127 | 11,983 | 11,983 | 11,927 | 11,854 | 11,992 | 12,159 | 12,212 | 12,210 | 12,188 | 12,264 | 12,251 | 12,292 | 12,232 | 12,218 | 12,187 | 12,142 | 11,830 | 11,575 | 11,342 | 11,366 | 11,411 | 11,382 | 11,460 | 11,176 | 11,201 | 11,084 | 10,864 | 10,873 | 10,693 | 10,715 | 10,656 | 10,446 | 10,349 | 10,353 | 10,437 | 10,355 | 10,390 | 10,393 | 10,305 | 10,365 | 10,311 | 10,342 | 10,444 | 10,441 | 10,473 | 10,487 | 10,550 | 10,485 | 10,452 | 10,480 | 10,438 | 10,383 | 10,378 | 10,347 | 10,326 | 10,329 | 10,512 | 10,565 | 10,547 | 10,597 | 10,593 | 10,439 | 10,455 | 10,458 | 10,438 | 10,385 | 10,218 | 10,238 | 10,272 | 10,307 | 10,228 | 10,223 | 10,181 | 10,222 | 10,218 | 10,228 | 10,173 | 10,265 | 10,099 | 10,126 | 10,074 | 10,002 | 10,038 | 9,974 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg Long U.S. Treasury Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg Long U.S. Treasury Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,616 | 10,444 | 10,154 | 10,813 | 10,682 | 10,931 | 11,177 | 10,291 | 9,428 | 9,917 | 10,698 | 11,004 | 11,248 | 11,250 | 11,574 | 11,514 | 10,993 | 11,540 | 10,845 | 11,033 | 10,304 | 10,909 | 11,845 | 12,394 | 12,071 | 12,252 | 12,488 | 13,707 | 14,480 | 14,695 | 15,330 | 15,551 | 15,149 | 14,872 | 15,311 | 15,343 | 14,803 | 14,292 | 14,228 | 13,904 | 14,634 | 15,497 | 16,077 | 16,268 | 16,075 | 16,574 | 16,511 | 17,254 | 16,555 | 16,533 | 16,848 | 16,514 | 15,571 | 14,594 | 13,659 | 14,051 | 14,124 | 14,246 | 14,611 | 13,222 | 13,201 | 13,027 | 12,227 | 12,450 | 11,828 | 11,975 | 11,895 | 11,278 | 11,068 | 11,416 | 11,765 | 11,582 | 11,755 | 11,734 | 11,490 | 11,718 | 11,373 | 11,725 | 12,116 | 11,911 | 11,826 | 11,836 | 12,097 | 11,696 | 11,769 | 11,722 | 11,494 | 11,320 | 11,382 | 11,208 | 11,164 | 11,224 | 12,123 | 12,639 | 12,846 | 12,969 | 12,685 | 11,951 | 11,857 | 11,917 | 11,917 | 11,572 | 11,018 | 11,020 | 11,111 | 11,172 | 11,003 | 11,005 | 10,633 | 11,056 | 11,235 | 11,595 | 11,461 | 12,108 | 11,154 | 10,843 | 10,551 | 10,269 | 10,463 | 10,055 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg U.S. 1-3 Year Corporate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. 1-3 Year Corporate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 12,149 | 12,091 | 11,997 | 12,024 | 11,960 | 11,985 | 11,930 | 11,773 | 11,597 | 11,571 | 11,584 | 11,556 | 11,482 | 11,493 | 11,515 | 11,451 | 11,350 | 11,426 | 11,311 | 11,283 | 11,133 | 11,155 | 11,314 | 11,394 | 11,294 | 11,405 | 11,326 | 11,410 | 11,546 | 11,608 | 11,699 | 11,697 | 11,721 | 11,762 | 11,764 | 11,761 | 11,743 | 11,756 | 11,732 | 11,711 | 11,723 | 11,717 | 11,714 | 11,690 | 11,656 | 11,635 | 11,640 | 11,617 | 11,565 | 11,487 | 11,363 | 11,112 | 11,415 | 11,347 | 11,286 | 11,247 | 11,237 | 11,189 | 11,177 | 11,091 | 11,083 | 11,006 | 10,946 | 10,913 | 10,833 | 10,800 | 10,718 | 10,643 | 10,637 | 10,635 | 10,629 | 10,586 | 10,561 | 10,562 | 10,521 | 10,511 | 10,508 | 10,532 | 10,551 | 10,539 | 10,565 | 10,555 | 10,555 | 10,535 | 10,493 | 10,486 | 10,460 | 10,432 | 10,425 | 10,392 | 10,360 | 10,344 | 10,385 | 10,379 | 10,369 | 10,367 | 10,346 | 10,280 | 10,280 | 10,238 | 10,147 | 10,145 | 10,120 | 10,142 | 10,149 | 10,134 | 10,095 | 10,111 | 10,104 | 10,125 | 10,115 | 10,097 | 10,078 | 10,075 | 10,019 | 10,049 | 10,033 | 10,006 | 10,023 | 10,002 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg U.S. Intermediate Corporate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Intermediate Corporate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 12,627 | 12,541 | 12,366 | 12,535 | 12,416 | 12,527 | 12,503 | 12,157 | 11,721 | 11,810 | 11,975 | 11,996 | 11,925 | 11,945 | 12,037 | 11,944 | 11,711 | 11,947 | 11,653 | 11,661 | 11,297 | 11,344 | 11,739 | 11,987 | 11,709 | 11,942 | 11,836 | 12,187 | 12,482 | 12,619 | 12,863 | 12,844 | 12,864 | 12,935 | 13,002 | 13,027 | 12,925 | 12,876 | 12,802 | 12,708 | 12,838 | 12,943 | 12,993 | 12,926 | 12,773 | 12,768 | 12,791 | 12,791 | 12,601 | 12,399 | 12,177 | 11,708 | 12,386 | 12,266 | 12,089 | 12,037 | 12,032 | 11,958 | 11,985 | 11,780 | 11,753 | 11,567 | 11,451 | 11,396 | 11,214 | 11,172 | 10,976 | 10,863 | 10,864 | 10,913 | 10,940 | 10,874 | 10,826 | 10,848 | 10,788 | 10,837 | 10,830 | 10,915 | 11,001 | 10,974 | 11,008 | 10,989 | 11,015 | 10,955 | 10,875 | 10,879 | 10,804 | 10,715 | 10,715 | 10,633 | 10,592 | 10,566 | 10,760 | 10,790 | 10,782 | 10,775 | 10,695 | 10,541 | 10,548 | 10,461 | 10,280 | 10,235 | 10,180 | 10,239 | 10,248 | 10,222 | 10,147 | 10,180 | 10,150 | 10,254 | 10,263 | 10,262 | 10,221 | 10,264 | 10,071 | 10,109 | 10,056 | 9,986 | 10,071 | 9,985 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg U.S. Long Term Corporate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Long Term Corporate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 12,729 | 12,662 | 12,315 | 12,954 | 12,706 | 13,061 | 13,176 | 12,273 | 11,071 | 11,557 | 12,199 | 12,441 | 12,458 | 12,269 | 12,619 | 12,525 | 12,006 | 12,698 | 11,878 | 12,016 | 11,016 | 11,269 | 12,348 | 12,930 | 12,337 | 12,894 | 12,766 | 14,147 | 14,551 | 15,073 | 15,969 | 16,038 | 15,975 | 15,739 | 16,043 | 16,120 | 15,758 | 15,196 | 15,033 | 14,777 | 15,216 | 15,717 | 16,152 | 16,102 | 15,280 | 15,362 | 15,433 | 16,008 | 15,074 | 14,704 | 14,540 | 13,536 | 15,027 | 14,738 | 14,176 | 14,160 | 14,070 | 13,990 | 14,193 | 13,406 | 13,247 | 12,723 | 12,437 | 12,353 | 11,839 | 11,852 | 11,441 | 11,171 | 11,227 | 11,650 | 11,721 | 11,691 | 11,498 | 11,662 | 11,604 | 11,834 | 11,756 | 12,173 | 12,333 | 12,066 | 12,031 | 11,935 | 11,942 | 11,791 | 11,705 | 11,580 | 11,335 | 11,153 | 11,237 | 11,017 | 11,004 | 10,837 | 11,367 | 11,596 | 11,710 | 11,653 | 11,308 | 10,868 | 10,878 | 10,604 | 10,084 | 9,918 | 9,926 | 10,052 | 10,103 | 10,023 | 9,948 | 10,072 | 9,914 | 10,297 | 10,502 | 10,748 | 10,732 | 10,986 | 10,405 | 10,294 | 10,190 | 10,007 | 10,307 | 10,018 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg U.S. Corporate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Corporate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 12,546 | 12,467 | 12,238 | 12,557 | 12,397 | 12,586 | 12,607 | 12,084 | 11,402 | 11,620 | 11,938 | 12,032 | 11,990 | 11,941 | 12,117 | 12,025 | 11,699 | 12,083 | 11,618 | 11,669 | 11,094 | 11,210 | 11,832 | 12,190 | 11,807 | 12,148 | 12,035 | 12,731 | 13,061 | 13,327 | 13,791 | 13,803 | 13,794 | 13,760 | 13,906 | 13,949 | 13,760 | 13,539 | 13,436 | 13,289 | 13,521 | 13,758 | 13,937 | 13,876 | 13,500 | 13,525 | 13,563 | 13,753 | 13,320 | 13,064 | 12,863 | 12,222 | 13,154 | 12,980 | 12,683 | 12,642 | 12,611 | 12,535 | 12,617 | 12,232 | 12,164 | 11,873 | 11,706 | 11,643 | 11,358 | 11,333 | 11,073 | 10,913 | 10,931 | 11,093 | 11,132 | 11,078 | 11,006 | 11,066 | 11,010 | 11,095 | 11,073 | 11,215 | 11,318 | 11,235 | 11,250 | 11,198 | 11,240 | 11,144 | 11,064 | 11,047 | 10,936 | 10,827 | 10,846 | 10,736 | 10,673 | 10,609 | 10,879 | 10,936 | 10,941 | 10,927 | 10,792 | 10,571 | 10,562 | 10,439 | 10,214 | 10,162 | 10,078 | 10,140 | 10,167 | 10,144 | 10,078 | 10,141 | 10,079 | 10,254 | 10,309 | 10,360 | 10,326 | 10,427 | 10,136 | 10,133 | 10,082 | 9,997 | 10,123 | 9,993 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg U.S. MBS Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. MBS Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,922 | 10,797 | 10,585 | 10,915 | 10,801 | 10,980 | 11,031 | 10,575 | 10,051 | 10,263 | 10,601 | 10,689 | 10,697 | 10,742 | 10,822 | 10,766 | 10,560 | 10,847 | 10,501 | 10,547 | 10,134 | 10,281 | 10,827 | 11,211 | 10,862 | 11,038 | 10,919 | 11,317 | 11,620 | 11,734 | 11,910 | 11,921 | 11,932 | 11,955 | 11,998 | 12,018 | 11,943 | 11,948 | 11,969 | 11,903 | 11,965 | 12,045 | 12,036 | 12,010 | 12,001 | 12,006 | 12,019 | 12,014 | 11,993 | 12,004 | 11,989 | 11,914 | 11,789 | 11,668 | 11,587 | 11,555 | 11,546 | 11,505 | 11,497 | 11,395 | 11,349 | 11,268 | 11,125 | 11,131 | 10,971 | 10,981 | 10,895 | 10,701 | 10,605 | 10,673 | 10,739 | 10,674 | 10,685 | 10,680 | 10,606 | 10,659 | 10,591 | 10,662 | 10,788 | 10,752 | 10,767 | 10,771 | 10,794 | 10,716 | 10,668 | 10,711 | 10,645 | 10,576 | 10,573 | 10,523 | 10,526 | 10,526 | 10,709 | 10,737 | 10,707 | 10,694 | 10,673 | 10,587 | 10,573 | 10,556 | 10,525 | 10,485 | 10,351 | 10,354 | 10,369 | 10,362 | 10,301 | 10,293 | 10,228 | 10,307 | 10,309 | 10,305 | 10,267 | 10,284 | 10,197 | 10,181 | 10,115 | 10,018 | 10,034 | 9,941 | 10,000 | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,431 | 11,324 | 11,136 | 11,424 | 11,320 | 11,482 | 11,514 | 11,089 | 10,609 | 10,779 | 11,060 | 11,131 | 11,139 | 11,179 | 11,302 | 11,234 | 10,955 | 11,246 | 10,910 | 10,960 | 10,571 | 10,710 | 11,193 | 11,519 | 11,244 | 11,423 | 11,350 | 11,798 | 12,135 | 12,272 | 12,542 | 12,574 | 12,537 | 12,541 | 12,650 | 12,674 | 12,534 | 12,447 | 12,406 | 12,309 | 12,465 | 12,647 | 12,739 | 12,721 | 12,597 | 12,654 | 12,661 | 12,764 | 12,576 | 12,497 | 12,439 | 12,222 | 12,294 | 12,077 | 11,849 | 11,857 | 11,863 | 11,828 | 11,891 | 11,591 | 11,565 | 11,422 | 11,223 | 11,220 | 11,008 | 11,015 | 10,899 | 10,702 | 10,639 | 10,724 | 10,793 | 10,724 | 10,722 | 10,734 | 10,659 | 10,738 | 10,670 | 10,772 | 10,898 | 10,848 | 10,862 | 10,855 | 10,908 | 10,810 | 10,764 | 10,775 | 10,693 | 10,611 | 10,616 | 10,546 | 10,524 | 10,510 | 10,765 | 10,847 | 10,854 | 10,866 | 10,798 | 10,607 | 10,604 | 10,564 | 10,467 | 10,393 | 10,252 | 10,286 | 10,313 | 10,311 | 10,242 | 10,257 | 10,186 | 10,298 | 10,323 | 10,360 | 10,312 | 10,410 | 10,196 | 10,187 | 10,115 | 10,017 | 10,085 | 9,975 | 10,000 | |||||||
| SPDR ETFs Index: ICE BofA US High Yield Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | ICE BofA US High Yield Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 14,885 | $ 14,742 | $ 14,577 | $ 14,724 | $ 14,551 | $ 14,508 | $ 14,505 | $ 13,989 | $ 13,381 | $ 13,548 | $ 13,708 | $ 13,669 | $ 13,477 | $ 13,261 | $ 13,388 | $ 13,260 | $ 13,113 | $ 13,285 | $ 12,785 | $ 12,882 | $ 12,645 | $ 12,295 | $ 12,810 | $ 13,125 | $ 12,379 | $ 13,283 | $ 13,250 | $ 13,750 | $ 13,878 | $ 14,004 | $ 14,400 | $ 14,134 | $ 14,281 | $ 14,306 | $ 14,301 | $ 14,224 | $ 14,173 | $ 13,982 | $ 13,942 | $ 13,791 | $ 13,767 | $ 13,719 | $ 13,667 | $ 13,411 | $ 12,895 | $ 12,835 | $ 12,970 | $ 12,844 | $ 12,258 | $ 12,140 | $ 11,609 | $ 11,184 | $ 12,674 | $ 12,874 | $ 12,873 | $ 12,610 | $ 12,575 | $ 12,546 | $ 12,506 | $ 12,458 | $ 12,394 | $ 12,098 | $ 12,254 | $ 12,084 | $ 11,856 | $ 11,736 | $ 11,372 | $ 11,381 | $ 11,418 | $ 11,579 | $ 11,573 | $ 11,494 | $ 11,379 | $ 11,414 | $ 11,411 | $ 11,445 | $ 11,467 | $ 11,617 | $ 11,651 | $ 11,594 | $ 11,610 | $ 11,565 | $ 11,527 | $ 11,474 | $ 11,373 | $ 11,337 | $ 11,221 | $ 11,091 | $ 11,107 | $ 10,987 | $ 10,903 | $ 10,785 | $ 10,970 | $ 10,995 | $ 10,983 | $ 10,879 | $ 10,669 | $ 10,501 | $ 10,494 | $ 10,253 | $ 9,921 | $ 9,824 | $ 9,867 | $ 10,026 | $ 10,122 | $ 9,931 | $ 10,011 | $ 10,119 | $ 10,099 | $ 10,267 | $ 10,281 | $ 10,270 | $ 10,280 | $ 10,217 | $ 10,021 | $ 10,065 | $ 10,063 | $ 9,929 | $ 10,093 | $ 9,930 | $ 10,000 |
| Shareholder Report, Average Annual Return (Details) | 12 Months Ended | 26 Months Ended | 39 Months Ended | 45 Months Ended | 60 Months Ended | 100 Months Ended | 102 Months Ended | 103 Months Ended | 111 Months Ended | 120 Months Ended |
| Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | |
| C000162693 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | SPYX | |||||||||
| C000019028 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | DGT | |||||||||
| C000019031 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | KCE | |||||||||
| C000019032 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | KIE | |||||||||
| C000019033 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | XNTK | |||||||||
| C000033546 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | XHE | |||||||||
| C000033547 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | XHS | |||||||||
| C000033549 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | XME | |||||||||
| C000033550 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | XES | |||||||||
| C000033537 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | XPH | |||||||||
| C000033538 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | XRT | |||||||||
| C000027708 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | XSD | |||||||||
| C000033545 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | XSW | |||||||||
| C000033539 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | XTL | |||||||||
| C000033540 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | XTN | |||||||||
| C000152674 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | QUS | |||||||||
| C000078463 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | PSK | |||||||||
| C000162275 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | XITK | |||||||||
| C000166946 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | SHE | |||||||||
| C000219610 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | EMHC | |||||||||
| C000222017 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | BILS | |||||||||
| C000047963 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | BIL | |||||||||
| C000126354 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | TIPX | |||||||||
| C000066456 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | CWB | |||||||||
| C000047970 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | TFI | |||||||||
| C000047964 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | SHM | |||||||||
| C000088522 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | HYMB | |||||||||
| C000055013 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | JNK | |||||||||
| C000111386 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | SJNK | |||||||||
| C000107256 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | FLRN | |||||||||
| C000234530 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | LQIG | |||||||||
| C000047967 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | SPIP | |||||||||
| C000055009 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | SPTS | |||||||||
| C000047965 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | SPTI | |||||||||
| C000047966 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | SPTL | |||||||||
| C000055010 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | SPSB | |||||||||
| C000066454 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | SPIB | |||||||||
| C000066455 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | SPLB | |||||||||
| C000099139 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | SPBO | |||||||||
| C000066453 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | SPMB | |||||||||
| C000047971 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | SPAB | |||||||||
| C000113018 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | SPHY | |||||||||
| Without Sales Load [Member] | C000162693 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 24.70% | 14.91% | 13.91% | |||||||
| Without Sales Load [Member] | C000019028 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 16.80% | 11.51% | 8.62% | |||||||
| Without Sales Load [Member] | C000019031 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 32.64% | 17.31% | 10.87% | |||||||
| Without Sales Load [Member] | C000019032 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 24.03% | 10.02% | 10.84% | |||||||
| Without Sales Load [Member] | C000019033 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 40.45% | 22.46% | 18.92% | |||||||
| Without Sales Load [Member] | C000033546 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | (14.08%) | 0.63% | 8.98% | |||||||
| Without Sales Load [Member] | C000033547 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | (3.65%) | 6.92% | 6.71% | |||||||
| Without Sales Load [Member] | C000033549 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 17.83% | 17.36% | 5.09% | |||||||
| Without Sales Load [Member] | C000033550 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 17.44% | 0.11% | (14.46%) | |||||||
| Without Sales Load [Member] | C000033537 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | (1.46%) | 1.15% | (0.67%) | |||||||
| Without Sales Load [Member] | C000033538 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 19.39% | 13.94% | 7.22% | |||||||
| Without Sales Load [Member] | C000027708 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 12.11% | 24.41% | 21.38% | |||||||
| Without Sales Load [Member] | C000033545 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 13.53% | 9.65% | 13.45% | |||||||
| Without Sales Load [Member] | C000033539 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 1.04% | 3.81% | 4.45% | |||||||
| Without Sales Load [Member] | C000033540 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | (5.78%) | 6.02% | 6.22% | |||||||
| Without Sales Load [Member] | C000152674 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 21.84% | 13.17% | 12.28% | |||||||
| Without Sales Load [Member] | C000078463 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 7.62% | 0.84% | 3.15% | |||||||
| Without Sales Load [Member] | C000162275 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 11.15% | 6.84% | 14.27% | |||||||
| Without Sales Load [Member] | C000166946 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 25.14% | 9.65% | 10.93% | |||||||
| Without Sales Load [Member] | C000219610 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 6.72% | (2.29%) | ||||||||
| Without Sales Load [Member] | C000222017 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 5.28% | 2.16% | ||||||||
| Without Sales Load [Member] | C000047963 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 5.33% | 2.01% | 1.35% | |||||||
| Without Sales Load [Member] | C000126354 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 4.27% | 2.59% | 1.93% | |||||||
| Without Sales Load [Member] | C000066456 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 5.32% | 8.98% | 8.04% | |||||||
| Without Sales Load [Member] | C000047970 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 2.19% | 0.30% | 1.89% | |||||||
| Without Sales Load [Member] | C000047964 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 1.97% | 0.39% | 0.77% | |||||||
| Without Sales Load [Member] | C000088522 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 6.88% | 1.12% | 3.04% | |||||||
| Without Sales Load [Member] | C000055013 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 9.97% | 2.80% | 2.94% | |||||||
| Without Sales Load [Member] | C000111386 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 9.28% | 4.22% | 3.63% | |||||||
| Without Sales Load [Member] | C000107256 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 6.68% | 2.74% | 2.13% | |||||||
| Without Sales Load [Member] | C000234530 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 4.25% | 2.25% | ||||||||
| Without Sales Load [Member] | C000047967 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 2.38% | 1.90% | 1.79% | |||||||
| Without Sales Load [Member] | C000055009 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 4.50% | 0.99% | 1.12% | |||||||
| Without Sales Load [Member] | C000047965 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 2.52% | (0.30%) | 0.94% | |||||||
| Without Sales Load [Member] | C000047966 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | (5.60%) | (4.30%) | 0.53% | |||||||
| Without Sales Load [Member] | C000055010 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 5.82% | 1.86% | 1.87% | |||||||
| Without Sales Load [Member] | C000066454 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 5.90% | 1.38% | 2.28% | |||||||
| Without Sales Load [Member] | C000066455 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 2.35% | (0.95%) | 2.35% | |||||||
| Without Sales Load [Member] | C000099139 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 4.88% | 0.80% | 2.27% | |||||||
| Without Sales Load [Member] | C000066453 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 2.07% | (0.85%) | 0.73% | |||||||
| Without Sales Load [Member] | C000047971 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 2.62% | (0.29%) | 1.29% | |||||||
| Without Sales Load [Member] | C000113018 | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Average Annual Return, Percent | 10.47% | 4.07% | 4.04% | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||
| Average Annual Return, Percent | 24.56% | 15.05% | 13.95% | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||
| Average Annual Return, Percent | 24.56% | 15.05% | 12.86% | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||
| Average Annual Return, Percent | 24.56% | 15.05% | 12.86% | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||
| Average Annual Return, Percent | 24.56% | 15.05% | 12.86% | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||
| Average Annual Return, Percent | 24.56% | 15.05% | 12.86% | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||
| Average Annual Return, Percent | 24.56% | 15.05% | 12.86% | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||
| Average Annual Return, Percent | 24.56% | 15.05% | 12.86% | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||
| Average Annual Return, Percent | 24.56% | 15.05% | 12.86% | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||
| Average Annual Return, Percent | 24.56% | 15.05% | 12.86% | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||
| Average Annual Return, Percent | 24.56% | 15.05% | 12.86% | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||
| Average Annual Return, Percent | 24.56% | 15.05% | 12.86% | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||
| Average Annual Return, Percent | 24.56% | 15.05% | 12.86% | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||
| Average Annual Return, Percent | 24.56% | 15.05% | 12.86% | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||
| Average Annual Return, Percent | 24.56% | 15.05% | 12.86% | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||
| Average Annual Return, Percent | 24.56% | 15.05% | 12.86% | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||
| Average Annual Return, Percent | 24.56% | 15.05% | 12.95% | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||
| Average Annual Return, Percent | 24.56% | 15.05% | 12.86% | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||
| Average Annual Return, Percent | 24.56% | 15.05% | 15.42% | |||||||
| SPDR ETFs Index: S&P 500 Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||
| Average Annual Return, Percent | 24.56% | 15.05% | 14.87% | |||||||
| SPDR ETFs Index: Bloomberg Global Aggregate Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg Global Aggregate Bond Index | |||||||||
| Average Annual Return, Percent | 0.93% | (4.90%) | ||||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||
| Average Annual Return, Percent | 2.63% | (2.69%) | ||||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||
| Average Annual Return, Percent | 2.63% | (0.23%) | 1.35% | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||
| Average Annual Return, Percent | 2.63% | (0.23%) | 1.35% | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||
| Average Annual Return, Percent | 2.63% | (0.23%) | 1.35% | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||
| Average Annual Return, Percent | 2.63% | (0.23%) | 1.35% | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||
| Average Annual Return, Percent | 2.63% | (0.23%) | 1.35% | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||
| Average Annual Return, Percent | 2.63% | (0.23%) | 1.35% | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||
| Average Annual Return, Percent | 2.63% | (0.23%) | 1.35% | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||
| Average Annual Return, Percent | 2.63% | (0.23%) | 1.35% | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||
| Average Annual Return, Percent | 2.63% | (0.23%) | 1.35% | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||
| Average Annual Return, Percent | 2.63% | 18.48% | ||||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||
| Average Annual Return, Percent | 2.63% | (0.23%) | 1.35% | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||
| Average Annual Return, Percent | 2.63% | (0.23%) | 1.35% | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||
| Average Annual Return, Percent | 2.63% | (0.23%) | 1.35% | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||
| Average Annual Return, Percent | 2.63% | (0.23%) | 1.35% | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||
| Average Annual Return, Percent | 2.63% | (0.23%) | 1.35% | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||
| Average Annual Return, Percent | 2.63% | (0.23%) | 1.35% | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||
| Average Annual Return, Percent | 2.63% | (0.23%) | 1.35% | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||
| Average Annual Return, Percent | 2.63% | (0.23%) | 1.35% | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||
| Average Annual Return, Percent | 2.63% | (0.23%) | 1.35% | |||||||
| SPDR ETFs Index: Bloomberg Global Aggregate Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg Global Aggregate Bond Index | |||||||||
| Average Annual Return, Percent | 0.93% | (2.02%) | (0.42%) | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||
| Average Annual Return, Percent | 2.63% | (0.23%) | 1.35% | |||||||
| SPDR ETFs Index: S&P 500 Fossil Fuel Free Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P 500 Fossil Fuel Free Index | |||||||||
| Average Annual Return, Percent | 24.94% | 15.16% | 14.16% | |||||||
| SPDR ETFs Index: The Global Dow | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | The Global Dow | |||||||||
| Average Annual Return, Percent | 16.84% | 11.55% | 8.62% | |||||||
| SPDR ETFs Index: S&P Capital Markets Select Industry Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P Capital Markets Select Industry Index | |||||||||
| Average Annual Return, Percent | 32.96% | 17.43% | 11.04% | |||||||
| SPDR ETFs Index: S&P Insurance Select Industry Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P Insurance Select Industry Index | |||||||||
| Average Annual Return, Percent | 24.51% | 10.43% | 11.25% | |||||||
| SPDR ETFs Index: NYSE Technology Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | NYSE Technology Index | |||||||||
| Average Annual Return, Percent | 40.92% | 22.92% | 19.44% | |||||||
| SPDR ETFs Index: S&P Health Care Equipment Select Industry Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P Health Care Equipment Select Industry Index | |||||||||
| Average Annual Return, Percent | (13.78%) | 0.93% | 9.29% | |||||||
| SPDR ETFs Index: S&P Health Care Services Select Industry Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P Health Care Services Select Industry Index | |||||||||
| Average Annual Return, Percent | (3.46%) | 7.15% | 7.02% | |||||||
| SPDR ETFs Index: S&P Metals & Mining Select Industry Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P Metals & Mining Select Industry Index | |||||||||
| Average Annual Return, Percent | 18.22% | 17.77% | 5.19% | |||||||
| SPDR ETFs Index: S&P Oil & Gas Equipment & Services Select Industry Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P Oil & Gas Equipment & Services Select Industry Index | |||||||||
| Average Annual Return, Percent | 17.89% | 0.35% | (14.32%) | |||||||
| SPDR ETFs Index: S&P Pharmaceuticals Select Industry Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P Pharmaceuticals Select Industry Index | |||||||||
| Average Annual Return, Percent | (1.52%) | 1.11% | (0.62%) | |||||||
| SPDR ETFs Index: S&P Retail Select Industry Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P Retail Select Industry Index | |||||||||
| Average Annual Return, Percent | 19.76% | 13.93% | 7.28% | |||||||
| SPDR ETFs Index: S&P Semiconductor Select Industry Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P Semiconductor Select Industry Index | |||||||||
| Average Annual Return, Percent | 12.52% | 24.83% | 21.70% | |||||||
| SPDR ETFs Index: S&P Software & Services Select Industry Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P Software & Services Select Industry Index | |||||||||
| Average Annual Return, Percent | 13.57% | 9.90% | 13.71% | |||||||
| SPDR ETFs Index: S&P Telecom Select Industry Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P Telecom Select Industry Index | |||||||||
| Average Annual Return, Percent | 1.30% | 4.06% | 4.54% | |||||||
| SPDR ETFs Index: S&P Transportation Select Industry Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | S&P Transportation Select Industry Index | |||||||||
| Average Annual Return, Percent | (5.51%) | 6.34% | 6.55% | |||||||
| SPDR ETFs Index: MSCI USA Factor Mix A-Series Capped Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | MSCI USA Factor Mix A-Series Capped Index | |||||||||
| Average Annual Return, Percent | 21.84% | 13.33% | 12.45% | |||||||
| SPDR ETFs Index: ICE Exchange-Listed Fixed & Adjustable Rate Preferred Securities Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | ICE Exchange-Listed Fixed & Adjustable Rate Preferred Securities Index | |||||||||
| Average Annual Return, Percent | 7.98% | 1.14% | 3.47% | |||||||
| SPDR ETFs Index: FactSet Innovative Technology Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | FactSet Innovative Technology Index | |||||||||
| Average Annual Return, Percent | 11.25% | 7.15% | 14.66% | |||||||
| SPDR ETFs Index: MSCI USA Gender Diversity Select Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | MSCI USA Gender Diversity Select Index | |||||||||
| Average Annual Return, Percent | 25.38% | 9.86% | 11.12% | |||||||
| SPDR ETFs Index: Bloomberg Emerging USD Bond Core Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg Emerging USD Bond Core Index | |||||||||
| Average Annual Return, Percent | 7.10% | (2.66%) | ||||||||
| SPDR ETFs Index: Bloomberg 3-12 Month U.S. Treasury Bill Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg 3-12 Month U.S. Treasury Bill Index | |||||||||
| Average Annual Return, Percent | 5.42% | 2.29% | ||||||||
| SPDR ETFs Index: Bloomberg 1-3 Month U.S. Treasury Bill Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg 1-3 Month U.S. Treasury Bill Index | |||||||||
| Average Annual Return, Percent | 5.50% | 2.17% | 1.50% | |||||||
| SPDR ETFs Index: Bloomberg 1-10 Year U.S. Government Inflation-Linked Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg 1-10 Year U.S. Government Inflation-Linked Bond Index | |||||||||
| Average Annual Return, Percent | 4.33% | 2.72% | 2.07% | |||||||
| SPDR ETFs Index: Bloomberg U.S. Convertible Liquid Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Convertible Liquid Bond Index | |||||||||
| Average Annual Return, Percent | 5.45% | 9.56% | 8.55% | |||||||
| SPDR ETFs Index: Bloomberg Municipal Managed Money 1-25 Years Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg Municipal Managed Money 1-25 Years Index | |||||||||
| Average Annual Return, Percent | 2.48% | 0.88% | 2.32% | |||||||
| SPDR ETFs Index: Bloomberg Managed Money Municipal Short Term Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg Managed Money Municipal Short Term Index | |||||||||
| Average Annual Return, Percent | 2.18% | 0.68% | 1.04% | |||||||
| SPDR ETFs Index: Bloomberg Municipal Yield Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg Municipal Yield Index | |||||||||
| Average Annual Return, Percent | 7.78% | 2.68% | 4.36% | |||||||
| SPDR ETFs Index: Bloomberg High Yield Very Liquid Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg High Yield Very Liquid Index | |||||||||
| Average Annual Return, Percent | 10.49% | 3.40% | 3.84% | |||||||
| SPDR ETFs Index: Bloomberg US High Yield 350mn Cash Pay 0-5 Yr 2% Capped Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg US High Yield 350mn Cash Pay 0-5 Yr 2% Capped Index | |||||||||
| Average Annual Return, Percent | 9.69% | 4.25% | 4.10% | |||||||
| SPDR ETFs Index: Bloomberg U.S. Dollar Floating Rate | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Dollar Floating Rate | |||||||||
| Average Annual Return, Percent | 6.76% | 2.97% | 2.34% | |||||||
| SPDR ETFs Index: MarketAxess U.S. Investment Grade 400 Corporate Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | MarketAxess U.S. Investment Grade 400 Corporate Bond Index | |||||||||
| Average Annual Return, Percent | 4.32% | 2.35% | ||||||||
| SPDR ETFs Index: Bloomberg U.S. Government Inflation-Linked Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Government Inflation-Linked Bond Index | |||||||||
| Average Annual Return, Percent | 2.48% | 2% | 1.92% | |||||||
| SPDR ETFs Index: Bloomberg 1-3 Year U.S. Treasury Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg 1-3 Year U.S. Treasury Index | |||||||||
| Average Annual Return, Percent | 4.51% | 1.02% | 1.17% | |||||||
| SPDR ETFs Index: Bloomberg 3-10 Year U.S. Treasury Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg 3-10 Year U.S. Treasury Index | |||||||||
| Average Annual Return, Percent | 2.55% | (0.26%) | 1.01% | |||||||
| SPDR ETFs Index: Bloomberg Long U.S. Treasury Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg Long U.S. Treasury Index | |||||||||
| Average Annual Return, Percent | (5.61%) | (4.26%) | 0.60% | |||||||
| SPDR ETFs Index: Bloomberg U.S. 1-3 Year Corporate Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. 1-3 Year Corporate Bond Index | |||||||||
| Average Annual Return, Percent | 5.83% | 1.86% | 1.97% | |||||||
| SPDR ETFs Index: Bloomberg U.S. Intermediate Corporate Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Intermediate Corporate Bond Index | |||||||||
| Average Annual Return, Percent | 5.89% | 1.45% | 2.36% | |||||||
| SPDR ETFs Index: Bloomberg U.S. Long Term Corporate Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Long Term Corporate Bond Index | |||||||||
| Average Annual Return, Percent | 2.18% | (0.79%) | 2.45% | |||||||
| SPDR ETFs Index: Bloomberg U.S. Corporate Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Corporate Bond Index | |||||||||
| Average Annual Return, Percent | 4.63% | 0.62% | 2.29% | |||||||
| SPDR ETFs Index: Bloomberg U.S. MBS Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. MBS Index | |||||||||
| Average Annual Return, Percent | 2.12% | (0.76%) | 0.89% | |||||||
| SPDR ETFs Index: Bloomberg U.S. Aggregate Bond Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||
| Average Annual Return, Percent | 2.63% | (0.23%) | 1.35% | |||||||
| SPDR ETFs Index: ICE BofA US High Yield Index | ||||||||||
| Average Annual Return [Line Items] | ||||||||||
| Line Graph and Table Measure Name | ICE BofA US High Yield Index | |||||||||
| Average Annual Return, Percent | 10.45% | 3.73% | 4.06% |
| Shareholder Report, Holdings (Details) | Jun. 30, 2024 |
| C000162693 | Microsoft Corp.FR_594918104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.50% |
| C000162693 | NVIDIA Corp.FR_67066G104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.80% |
| C000162693 | Apple, Inc.FR_037833100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.80% |
| C000162693 | Alphabet, Inc.FR_02079K305 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.40% |
| C000162693 | Amazon.com, Inc.FR_023135106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000162693 | Meta Platforms, Inc.FR_30303M102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.50% |
| C000162693 | Berkshire Hathaway, Inc.FR_084670702 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000162693 | Eli Lilly & Co.FR_532457108 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| C000162693 | Broadcom, Inc.FR_11135F101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| C000162693 | JPMorgan Chase & Co.FR_46625H100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000162693 | IndustrySemiconductors & Semiconductor Equipment | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.40% |
| C000162693 | IndustrySoftware | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.10% |
| C000162693 | IndustryTechnology Hardware, Storage & Peripherals | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000162693 | IndustryInteractive Media & Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.90% |
| C000162693 | IndustryBanks | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| C000162693 | IndustryFinancial Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000162693 | IndustryBroadline Retail | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000162693 | IndustryPharmaceuticals | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| C000162693 | IndustryHealth Care Providers & Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.50% |
| C000162693 | IndustryHealth Care Equipment & Supplies | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.40% |
| C000019028 | NVIDIA Corp.FR_67066G104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| C000019028 | Meta Platforms, Inc.FR_30303M102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000019028 | Eli Lilly & Co.FR_532457108 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000019028 | Broadcom, Inc.FR_11135F101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000019028 | QUALCOMM, Inc.FR_747525103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000019028 | General Electric Co.FR_369604301 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000019028 | Taiwan Semiconductor Manufacturing Co. Ltd.FR_874039100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000019028 | UniCredit SpAFR_BYMXPS901 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000019028 | Howmet Aerospace, Inc.FR_443201108 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000019028 | Netflix, Inc.FR_64110L106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000019028 | IndustrySemiconductors & Semiconductor Equipment | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.20% |
| C000019028 | IndustryTechnology Hardware, Storage & Peripherals | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.70% |
| C000019028 | IndustryBanks | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.30% |
| C000019028 | IndustryBroadline Retail | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| C000019028 | IndustryPharmaceuticals | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.50% |
| C000019028 | IndustryOil, Gas & Consumable Fuels | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.30% |
| C000019028 | IndustryAerospace & Defense | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| C000019028 | IndustryInsurance | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| C000019028 | IndustryMetals & Mining | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| C000019028 | IndustryIT Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.50% |
| C000019031 | Jefferies Financial Group, Inc.FR_47233W109 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000019031 | Piper Sandler Cos.FR_724078100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000019031 | Moelis & Co.FR_60786M105 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000019031 | StepStone Group, Inc.FR_85914M107 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000019031 | Stifel Financial Corp.FR_860630102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000019031 | Raymond James Financial, Inc.FR_754730109 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000019031 | PJT Partners, Inc.FR_69343T107 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000019031 | Hamilton Lane, Inc.FR_407497106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000019031 | Evercore, Inc.FR_29977A105 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000019031 | Affiliated Managers Group, Inc.FR_008252108 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000019031 | Asset Management & Custody Banks | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 45.40% |
| C000019031 | Investment Banking & Brokerage | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 32.60% |
| C000019031 | Financial Exchanges & Data | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21.90% |
| C000019032 | Ryan Specialty Holdings, Inc.FR_78351F107 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000019032 | Primerica, Inc.FR_74164M108 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000019032 | Brighthouse Financial, Inc.FR_10922N103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000019032 | Globe Life, Inc.FR_37959E102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000019032 | Unum GroupFR_91529Y106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000019032 | Cincinnati Financial Corp.FR_172062101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000019032 | Old Republic International Corp.FR_680223104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000019032 | CNO Financial Group, Inc.FR_12621E103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000019032 | Arch Capital Group Ltd.FR_G0450A105 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000019032 | Everest Group Ltd.FR_G3223R108 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000019032 | Property & Casualty Insurance | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 49.10% |
| C000019032 | Life & Health Insurance | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 24.80% |
| C000019032 | Insurance Brokers | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.80% |
| C000019032 | Reinsurance | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.10% |
| C000019032 | Multi-line Insurance | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| C000019033 | NVIDIA Corp.FR_67066G104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.90% |
| C000019033 | Meta Platforms, Inc.FR_30303M102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| C000019033 | Broadcom, Inc.FR_11135F101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| C000019033 | QUALCOMM, Inc.FR_747525103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| C000019033 | Taiwan Semiconductor Manufacturing Co. Ltd.FR_874039100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| C000019033 | Netflix, Inc.FR_64110L106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| C000019033 | Micron Technology, Inc.FR_595112103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000019033 | Applied Materials, Inc.FR_038222105 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.60% |
| C000019033 | Lam Research Corp.FR_512807108 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| C000019033 | ASML Holding NVFR_N07059210 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| C000019033 | IndustrySemiconductors & Semiconductor Equipment | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 41.80% |
| C000019033 | IndustrySoftware | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.80% |
| C000019033 | IndustryTechnology Hardware, Storage & Peripherals | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.50% |
| C000019033 | IndustryInteractive Media & Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.50% |
| C000019033 | IndustryBroadline Retail | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.80% |
| C000019033 | IndustryIT Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.10% |
| C000019033 | IndustryHotels, Restaurants & Leisure | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.20% |
| C000019033 | IndustryEntertainment | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| C000019033 | IndustryGround Transportation | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.70% |
| C000019033 | IndustryCommunications Equipment | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000033546 | Silk Road Medical, Inc.FR_82710M100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000033546 | STAAR Surgical Co.FR_852312305 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000033546 | iRhythm Technologies, Inc.FR_450056106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000033546 | AtriCure, Inc.FR_04963C209 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000033546 | Inari Medical, Inc.FR_45332Y109 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000033546 | TransMedics Group, Inc.FR_89377M109 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000033546 | Edwards Lifesciences Corp.FR_28176E108 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000033546 | Glaukos Corp.FR_377322102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000033546 | Merit Medical Systems, Inc.FR_589889104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000033546 | UFP Technologies, Inc.FR_902673102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000033546 | IndustryHealth Care Equipment | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 75.10% |
| C000033546 | IndustryHealth Care Supplies | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 24.70% |
| C000033547 | Patterson Cos., Inc.FR_703395103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000033547 | Progyny, Inc.FR_74340E103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000033547 | HealthEquity, Inc.FR_42226A107 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000033547 | Humana, Inc.FR_444859102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000033547 | Ensign Group, Inc.FR_29358P101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000033547 | Select Medical Holdings Corp.FR_81619Q105 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000033547 | Acadia Healthcare Co., Inc.FR_00404A109 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000033547 | UnitedHealth Group, Inc.FR_91324P102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000033547 | Labcorp Holdings, Inc.FR_504922105 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000033547 | Encompass Health Corp.FR_29261A100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000033547 | IndustryHealth Care Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 48.10% |
| C000033547 | IndustryHealth Care Facilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21.50% |
| C000033547 | IndustryManaged Health Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.20% |
| C000033547 | IndustryHealth Care Distributors | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.20% |
| C000033549 | Carpenter Technology Corp.FR_144285103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5% |
| C000033549 | Steel Dynamics, Inc.FR_858119100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.90% |
| C000033549 | Alcoa Corp.FR_013872106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| C000033549 | ATI, Inc.FR_01741R102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| C000033549 | U.S. Steel Corp.FR_912909108 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| C000033549 | Cleveland-Cliffs, Inc.FR_185899101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| C000033549 | Reliance, Inc.FR_759509102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| C000033549 | Royal Gold, Inc.FR_780287108 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.70% |
| C000033549 | Newmont Corp.FR_651639106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.70% |
| C000033549 | Nucor Corp.FR_670346105 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.70% |
| C000033549 | Steel | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 55.20% |
| C000033549 | Gold | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.90% |
| C000033549 | Coal & Consumable Fuels | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.30% |
| C000033549 | Aluminum | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.40% |
| C000033549 | Copper | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| C000033549 | Silver | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.30% |
| C000033549 | Diversified Metals & Mining | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.20% |
| C000033550 | Baker Hughes Co.FR_05722G100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.90% |
| C000033550 | Helmerich & Payne, Inc.FR_423452101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| C000033550 | ChampionX Corp.FR_15872M104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| C000033550 | Weatherford International PLCFR_G48833118 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.70% |
| C000033550 | Schlumberger NVFR_806857108 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.70% |
| C000033550 | NOV, Inc.FR_62955J103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.70% |
| C000033550 | TechnipFMC PLCFR_G87110105 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.70% |
| C000033550 | Patterson-UTI Energy, Inc.FR_703481101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| C000033550 | Noble Corp. PLCFR_G65431127 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| C000033550 | Archrock, Inc.FR_03957W106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| C000033550 | Oil & Gas Equipment & Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 72.60% |
| C000033550 | Oil & Gas Drilling | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 27.30% |
| C000033537 | Eli Lilly & Co.FR_532457108 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000033537 | Axsome Therapeutics, Inc.FR_05464T104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.30% |
| C000033537 | Viatris, Inc.FR_92556V106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| C000033537 | Zoetis, Inc.FR_98978V103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000033537 | Pfizer, Inc.FR_717081103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000033537 | Organon & Co.FR_68622V106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000033537 | Catalent, Inc.FR_148806102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000033537 | Intra-Cellular Therapies, Inc.FR_46116X101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| C000033537 | Bristol-Myers Squibb Co.FR_110122108 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| C000033537 | Johnson & JohnsonFR_478160104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| C000033537 | Pharmaceuticals | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.90% |
| C000033538 | Amazon.com, Inc.FR_023135106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000033538 | Carvana Co.FR_146869102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000033538 | Chewy, Inc.FR_16679L109 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000033538 | Ollie's Bargain Outlet Holdings, Inc.FR_681116109 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000033538 | Sprouts Farmers Market, Inc.FR_85208M102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000033538 | Grocery Outlet Holding Corp.FR_39874R101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000033538 | Kohl's Corp.FR_500255104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000033538 | Dillard's, Inc.FR_254067101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000033538 | Burlington Stores, Inc.FR_122017106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000033538 | Dollar General Corp.FR_256677105 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000033538 | Automotive Retail | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21.60% |
| C000033538 | Other Specialty Retail | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21.30% |
| C000033538 | Apparel Retail | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21% |
| C000033538 | Broadline Retail | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.90% |
| C000033538 | Consumer Staples Merchandise Retail | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.60% |
| C000033538 | Food Retail | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.60% |
| C000033538 | Computer & Electronics Retail | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.80% |
| C000033538 | Drug Retail | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000027708 | Credo Technology Group Holding Ltd.FR_G25457105 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| C000027708 | MACOM Technology Solutions Holdings, Inc.FR_55405Y100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| C000027708 | Impinj, Inc.FR_453204109 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| C000027708 | Universal Display Corp.FR_91347P105 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| C000027708 | Cirrus Logic, Inc.FR_172755100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| C000027708 | Qorvo, Inc.FR_74736K101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000027708 | Rambus, Inc.FR_750917106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000027708 | Skyworks Solutions, Inc.FR_83088M102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000027708 | Monolithic Power Systems, Inc.FR_609839105 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000027708 | Intel Corp.FR_458140100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000027708 | Semiconductors | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.90% |
| C000033545 | Samsara, Inc.FR_79589L106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000033545 | Rapid7, Inc.FR_753422104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000033545 | AvePoint, Inc.FR_053604104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000033545 | Agilysys, Inc.FR_00847J105 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000033545 | SentinelOne, Inc.FR_81730H109 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000033545 | Terawulf, Inc.FR_88080T104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000033545 | Asana, Inc.FR_04342Y104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000033545 | Matterport, Inc.FR_577096100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000033545 | Varonis Systems, Inc.FR_922280102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000033545 | Gitlab, Inc.FR_37637K108 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000033545 | Application Software | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 69.50% |
| C000033545 | Systems Software | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 20% |
| C000033545 | IT Consulting & Other Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.80% |
| C000033545 | Interactive Home Entertainment | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| C000033545 | Human Resource & Employment Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000033539 | AT&T, Inc.FR_00206R102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.70% |
| C000033539 | Lumentum Holdings, Inc.FR_55024U109 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.70% |
| C000033539 | Arista Networks, Inc.FR_040413106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| C000033539 | Cogent Communications Holdings, Inc.FR_19239V302 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| C000033539 | Frontier Communications Parent, Inc.FR_35909D109 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| C000033539 | Verizon Communications, Inc.FR_92343V104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| C000033539 | Cisco Systems, Inc.FR_17275R102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| C000033539 | Motorola Solutions, Inc.FR_620076307 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| C000033539 | Ciena Corp.FR_171779309 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| C000033539 | Juniper Networks, Inc.FR_48203R104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| C000033539 | Communications Equipment | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 55.60% |
| C000033539 | Alternative Carriers | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 20.50% |
| C000033539 | Integrated Telecommunication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.70% |
| C000033539 | Wireless Telecommunication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.10% |
| C000033540 | FedEx Corp.FR_31428X106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| C000033540 | JetBlue Airways Corp.FR_477143101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| C000033540 | Matson, Inc.FR_57686G105 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| C000033540 | SkyWest, Inc.FR_830879102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000033540 | Knight-Swift Transportation Holdings, Inc.FR_499049104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000033540 | CH Robinson Worldwide, Inc.FR_12541W209 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000033540 | GXO Logistics, Inc.FR_36262G101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000033540 | Saia, Inc.FR_78709Y105 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.70% |
| C000033540 | Joby Aviation, Inc.FR_G65163100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.70% |
| C000033540 | Ryder System, Inc.FR_783549108 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.70% |
| C000033540 | Cargo Ground Transportation | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 30.60% |
| C000033540 | Airlines | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 25.10% |
| C000033540 | Air Freight & Logistics | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18% |
| C000033540 | Passenger Ground Transportation | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.30% |
| C000033540 | Railroads | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.10% |
| C000033540 | Marine | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.60% |
| C000152674 | Microsoft Corp.FR_594918104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| C000152674 | NVIDIA Corp.FR_67066G104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| C000152674 | Apple, Inc.FR_037833100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| C000152674 | Alphabet, Inc.FR_02079K305 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| C000152674 | Meta Platforms, Inc.FR_30303M102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000152674 | Eli Lilly & Co.FR_532457108 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.50% |
| C000152674 | UnitedHealth Group, Inc.FR_91324P102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000152674 | Johnson & JohnsonFR_478160104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000152674 | Visa, Inc.FR_92826C839 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000152674 | Mastercard, Inc.FR_57636Q104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000152674 | IndustrySemiconductors & Semiconductor Equipment | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.80% |
| C000152674 | IndustrySoftware | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.30% |
| C000152674 | IndustryTechnology Hardware, Storage & Peripherals | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| C000152674 | IndustryInteractive Media & Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.90% |
| C000152674 | IndustryBanks | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000152674 | IndustryFinancial Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| C000152674 | IndustryPharmaceuticals | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.80% |
| C000152674 | IndustryHealth Care Providers & Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.90% |
| C000152674 | IndustryOil, Gas & Consumable Fuels | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.60% |
| C000152674 | IndustryInsurance | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.10% |
| C000078463 | Citigroup Capital XIIIFR_173080201 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.70% |
| C000078463 | AT&T, Inc.FR_00206R300 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000078463 | Capital One Financial Corp.FR_14040H824 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000078463 | Wells Fargo & Co.FR_94988U151 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| C000078463 | Allstate Corp.FR_020002838 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000078463 | Duke Energy Corp.FR_26441C501 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000078463 | Capital One Financial Corp.FR_14040H782 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000078463 | Southern Co.FR_842587800 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000078463 | U.S. BancorpFR_902973155 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000078463 | Athene Holding Ltd.FR_04686J861 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000078463 | IndustryBanks | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 37% |
| C000078463 | IndustryInsurance | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 25.80% |
| C000078463 | IndustryElectric | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.80% |
| C000078463 | IndustryDiversified Financial Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.40% |
| C000078463 | IndustryReal Estate Investment Trusts | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| C000078463 | IndustryAuto Manufacturers | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| C000078463 | IndustryTelecommunications | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000078463 | IndustrySovereign | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000078463 | IndustryGas | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000162275 | NVIDIA Corp.FR_67066G104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.40% |
| C000162275 | Impinj, Inc.FR_453204109 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000162275 | Super Micro Computer, Inc.FR_86800U104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000162275 | AppLovin Corp.FR_03831W108 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000162275 | Camtek Ltd.FR_M20791105 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000162275 | Toast, Inc.FR_888787108 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| C000162275 | Daktronics, Inc.FR_234264109 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000162275 | HashiCorp, Inc.FR_418100103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000162275 | Crowdstrike Holdings, Inc.FR_22788C105 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000162275 | Spotify Technology SAFR_L8681T102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000162275 | IndustrySemiconductors & Semiconductor Equipment | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.50% |
| C000162275 | IndustrySoftware | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 37.70% |
| C000162275 | IndustryTechnology Hardware, Storage & Peripherals | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000162275 | IndustryInteractive Media & Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| C000162275 | IndustryFinancial Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.40% |
| C000162275 | IndustryIT Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.50% |
| C000162275 | IndustryEntertainment | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.20% |
| C000162275 | IndustryProfessional Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.40% |
| C000162275 | IndustryElectronic Equipment, Instruments & Components | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5% |
| C000162275 | IndustryMedia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.70% |
| C000166946 | Microsoft Corp.FR_594918104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| C000166946 | NVIDIA Corp.FR_67066G104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.70% |
| C000166946 | Apple, Inc.FR_037833100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| C000166946 | Alphabet, Inc.FR_02079K305 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| C000166946 | Amazon.com, Inc.FR_023135106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| C000166946 | Meta Platforms, Inc.FR_30303M102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000166946 | Eli Lilly & Co.FR_532457108 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| C000166946 | Cisco Systems, Inc.FR_17275R102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| C000166946 | Accenture PLCFR_G1151C101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| C000166946 | Intuit, Inc.FR_461202103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| C000166946 | SectorInformation Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 31.40% |
| C000166946 | SectorFinancials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.40% |
| C000166946 | SectorHealth Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.80% |
| C000166946 | SectorConsumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.10% |
| C000166946 | SectorCommunication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.40% |
| C000166946 | SectorIndustrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.60% |
| C000166946 | SectorConsumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.70% |
| C000166946 | SectorEnergy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.70% |
| C000166946 | SectorMaterials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000166946 | SectorReal Estate | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000219610 | Republic of Poland Government International BondsFR_731011AY8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000219610 | Israel Government International BondsFR_46514BRM1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000219610 | Ecopetrol SAFR_279158AS8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000219610 | Israel Government International BondsFR_46514BRL3 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000219610 | Israel Government International BondsFR_46514BRN9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000219610 | Bahrain Government International BondsFR_M87012AC0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000219610 | Bahrain Government International BondsFR_ACI1V9H76 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000219610 | Oman Government International BondsFR_ACI1DKJ46 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000219610 | Panama Government International BondsFR_698299AW4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000219610 | Peru Government International BondsFR_715638DU3 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000219610 | 0 to 1 Year | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000219610 | 1 to 2 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000219610 | 2 to 3 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.40% |
| C000219610 | 3 to 5 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19.20% |
| C000219610 | 5 to 10 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 34.30% |
| C000219610 | 10 to 20 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.10% |
| C000219610 | 20 to 30 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 20.70% |
| C000219610 | Greater than 30 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| C000222017 | U.S. Treasury BillsFR_912797GW1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.90% |
| C000222017 | U.S. Treasury BillsFR_912797HE0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.90% |
| C000222017 | U.S. Treasury BillsFR_912797HP5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.80% |
| C000222017 | U.S. Treasury BillsFR_912796ZV4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.80% |
| C000222017 | U.S. Treasury BillsFR_912797KT3 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.20% |
| C000222017 | U.S. Treasury BillsFR_912797KU0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.20% |
| C000222017 | U.S. Treasury BillsFR_912797KV8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.20% |
| C000222017 | U.S. Treasury BillsFR_912797LE5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.20% |
| C000222017 | U.S. Treasury BillsFR_912797LC9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.20% |
| C000222017 | U.S. Treasury BillsFR_912797LD7 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.20% |
| C000222017 | 0 to 1 Year | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 107.50% |
| C000047963 | U.S. Treasury BillsFR_912797GK7 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.90% |
| C000047963 | U.S. Treasury BillsFR_912797JU2 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.20% |
| C000047963 | U.S. Treasury BillsFR_912797GL5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.70% |
| C000047963 | U.S. Treasury BillsFR_912797KK2 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.50% |
| C000047963 | U.S. Treasury BillsFR_912797KM8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.30% |
| C000047963 | U.S. Treasury BillsFR_912797KD8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.20% |
| C000047963 | U.S. Treasury BillsFR_912797KC0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6% |
| C000047963 | U.S. Treasury BillsFR_912797KB2 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.70% |
| C000047963 | U.S. Treasury BillsFR_912797KY2 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.40% |
| C000047963 | U.S. Treasury BillsFR_912797KL0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.40% |
| C000047963 | 0 to 1 Year | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 107.70% |
| C000126354 | U.S. Treasury Inflation-Indexed NotesFR_912828N71 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| C000126354 | U.S. Treasury Inflation-Indexed NotesFR_91282CBF7 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.80% |
| C000126354 | U.S. Treasury Inflation-Indexed NotesFR_912828XL9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.70% |
| C000126354 | U.S. Treasury Inflation-Indexed NotesFR_91282CJY8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.60% |
| C000126354 | U.S. Treasury Inflation-Indexed NotesFR_91282CGK1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| C000126354 | U.S. Treasury Inflation-Indexed NotesFR_91282CEZ0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| C000126354 | U.S. Treasury Inflation-Indexed NotesFR_91282CCM1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| C000126354 | U.S. Treasury Inflation-Indexed NotesFR_9128285W6 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| C000126354 | U.S. Treasury Inflation-Indexed NotesFR_91282CHP9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| C000126354 | U.S. Treasury Inflation-Indexed NotesFR_9128287D6 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| C000126354 | 1 to 2 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.80% |
| C000126354 | 2 to 3 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.80% |
| C000126354 | 3 to 5 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 33.60% |
| C000126354 | 5 to 10 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 35.10% |
| C000066456 | Alibaba Group Holding Ltd.FR_01609WBF8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000066456 | Wells Fargo & Co.FR_949746804 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000066456 | Royal Caribbean Cruises Ltd.FR_780153BQ4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| C000066456 | Bank of America Corp.FR_060505682 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000066456 | Palo Alto Networks, Inc.FR_697435AF2 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000066456 | Western Digital Corp.FR_958102AS4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000066456 | Ford Motor Co.FR_345370CZ1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000066456 | PG&E Corp.FR_69331CAK4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000066456 | Uber Technologies, Inc.FR_90353TAL4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000066456 | Albemarle Corp.FR_012653200 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000066456 | SectorEnergy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000066456 | SectorMaterials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000066456 | SectorCommunications | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21.60% |
| C000066456 | SectorTechnology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 20.80% |
| C000066456 | SectorConsumer, Non-Cyclical | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.60% |
| C000066456 | SectorConsumer, Cyclical | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.40% |
| C000066456 | SectorUtilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.80% |
| C000066456 | SectorFinancial Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.50% |
| C000066456 | SectorIndustrial | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| C000066456 | SectorBasic Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000047970 | University of CaliforniaFR_91412HPX5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000047970 | New York City Municipal Water Finance AuthorityFR_64972GG65 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000047970 | City of New YorkFR_64966QZ52 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000047970 | City of New YorkFR_64966QM56 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000047970 | City of New YorkFR_64966QMF4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000047970 | University of CaliforniaFR_91412HPT4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000047970 | City of New YorkFR_64966QYN4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000047970 | Salt River Project Agricultural Improvement & Power DistrictFR_79574CEE9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000047970 | State of WashingtonFR_93974EXV3 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000047970 | State of CaliforniaFR_13063DUD8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000047970 | New York | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21% |
| C000047970 | California | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.80% |
| C000047970 | Texas | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.80% |
| C000047970 | Washington | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.90% |
| C000047970 | Massachusetts | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.80% |
| C000047970 | Florida | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| C000047970 | Maryland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.50% |
| C000047970 | Connecticut | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.40% |
| C000047970 | Ohio | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000047970 | Virginia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000047964 | State of CaliforniaFR_13063EAW6 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000047964 | State of CaliforniaFR_13063DG93 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000047964 | New York City Municipal Water Finance AuthorityFR_64972GYR9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000047964 | City of New YorkFR_64966QM31 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000047964 | New York City Transitional Finance Authority Future Tax Secured RevenueFR_64971XTD0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000047964 | Triborough Bridge & Tunnel AuthorityFR_89602HCR6 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000047964 | University of CaliforniaFR_91412HPC1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000047964 | Triborough Bridge & Tunnel AuthorityFR_89602HFS1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000047964 | Chino Basin Regional Financing AuthorityFR_169498FR8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000047964 | Los Angeles Unified School DistrictFR_544647DW7 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000047964 | New York | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.60% |
| C000047964 | California | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21.10% |
| C000047964 | Texas | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.80% |
| C000047964 | Washington | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| C000047964 | Massachusetts | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| C000047964 | Florida | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000047964 | Maryland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| C000047964 | Connecticut | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.70% |
| C000047964 | Virginia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000047964 | Georgia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000088522 | Puerto Rico Sales Tax Financing Corp. Sales Tax RevenueFR_74529JPX7 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000088522 | Buckeye Tobacco Settlement Financing AuthorityFR_118217CZ9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000088522 | Puerto Rico Sales Tax Financing Corp. Sales Tax RevenueFR_74529JRL1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000088522 | Puerto Rico Sales Tax Financing Corp. Sales Tax RevenueFR_74529JPW9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000088522 | Puerto Rico Sales Tax Financing Corp. Sales Tax RevenueFR_74529JRH0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000088522 | Commonwealth of Puerto RicoFR_74514L3N5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000088522 | Commonwealth of Puerto RicoFR_74514L3P0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000088522 | New York Liberty Development Corp.FR_649519DA0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000088522 | Metropolitan Pier & Exposition AuthorityFR_592250EW0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000088522 | New York Transportation Development Corp.FR_650116GP5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000088522 | New York | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.10% |
| C000088522 | California | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.20% |
| C000088522 | Texas | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| C000088522 | Florida | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.90% |
| C000088522 | Ohio | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.90% |
| C000088522 | Puerto Rico | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.50% |
| C000088522 | Illinois | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.70% |
| C000088522 | Wisconsin | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.60% |
| C000088522 | Colorado | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| C000088522 | Pennsylvania | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| C000055013 | Medline Borrower LPFR_62482BAA0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000055013 | Cloud Software Group, Inc.FR_88632QAE3 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000055013 | Cloud Software Group, Inc.FR_18912UAA0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000055013 | DISH Network Corp.FR_25470MAG4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000055013 | Directv Financing LLC/Directv Financing Co.-Obligor, Inc.FR_25461LAA0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000055013 | HUB International Ltd.FR_44332PAH4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000055013 | Venture Global LNG, Inc.FR_92332YAC5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000055013 | Panther Escrow Issuer LLCFR_69867RAA5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000055013 | Carnival Corp.FR_143658BN1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000055013 | American Airlines, Inc./AAdvantage Loyalty IP Ltd.FR_00253XAB7 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000055013 | SectorEnergy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.90% |
| C000055013 | SectorCommunications | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15% |
| C000055013 | SectorTechnology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5% |
| C000055013 | SectorConsumer, Non-Cyclical | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.50% |
| C000055013 | SectorConsumer, Cyclical | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.70% |
| C000055013 | SectorUtilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.40% |
| C000055013 | SectorIndustrial | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.80% |
| C000055013 | SectorBasic Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.20% |
| C000055013 | SectorFinancial | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.90% |
| C000055013 | SectorDiversified | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000111386 | Cloud Software Group, Inc.FR_88632QAE3 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000111386 | DISH Network Corp.FR_25470MAG4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000111386 | Directv Financing LLC/Directv Financing Co.-Obligor, Inc.FR_25461LAA0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000111386 | American Airlines, Inc./AAdvantage Loyalty IP Ltd.FR_00253XAB7 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000111386 | CCO Holdings LLC/CCO Holdings Capital Corp.FR_1248EPBT9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000111386 | Carnival Holdings Bermuda Ltd.FR_14366RAA7 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000111386 | Venture Global LNG, Inc.FR_92332YAA9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000111386 | Western Digital Corp.FR_958102AM7 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000111386 | Uniti Group LP/Uniti Group Finance, Inc./CSL Capital LLCFR_91327TAA9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000111386 | Mauser Packaging Solutions Holding Co.FR_57763RAD9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000111386 | SectorEnergy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.20% |
| C000111386 | SectorCommunications | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.20% |
| C000111386 | SectorTechnology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.70% |
| C000111386 | SectorConsumer, Non-Cyclical | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.20% |
| C000111386 | SectorConsumer, Cyclical | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 23.80% |
| C000111386 | SectorUtilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| C000111386 | SectorIndustrial | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.80% |
| C000111386 | SectorBasic Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.80% |
| C000111386 | SectorFinancial | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.30% |
| C000111386 | SectorDiversified | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.10% |
| C000107256 | International Bank for Reconstruction & DevelopmentFR_459058JF1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000107256 | International Bank for Reconstruction & DevelopmentFR_459058KN2 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000107256 | European Bank for Reconstruction & DevelopmentFR_29874QEN0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000107256 | International Bank for Reconstruction & DevelopmentFR_459058KK8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000107256 | International Bank for Reconstruction & DevelopmentFR_459058JJ3 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000107256 | Inter-American Development BankFR_4581X0DY1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000107256 | Inter-American Development BankFR_4581X0DT2 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000107256 | International Bank for Reconstruction & DevelopmentFR_459058LG6 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000107256 | Inter-American Development BankFR_4581X0EC8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000107256 | Asian Development BankFR_04517PBE1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000107256 | 0 to 1 Year | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 20.40% |
| C000107256 | 1 to 2 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 33.60% |
| C000107256 | 2 to 3 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 25.10% |
| C000107256 | 3 to 5 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19.50% |
| C000107256 | 5 to 10 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000234530 | Morgan StanleyFR_61772BAB9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000234530 | Anheuser-Busch Cos. LLC/Anheuser-Busch InBev Worldwide, Inc.FR_03522AAJ9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000234530 | HSBC Holdings PLCFR_404280DG1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000234530 | CVS Health Corp.FR_126650CZ1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000234530 | T-Mobile USA, Inc.FR_87264ABF1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000234530 | Bank of America Corp.FR_06051GHD4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000234530 | Goldman Sachs Group, Inc.FR_38141GFD1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000234530 | Wells Fargo & Co.FR_95000U3D3 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000234530 | Pfizer Investment Enterprises Pte. Ltd.FR_716973AG7 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000234530 | Bank of America Corp.FR_06051GLH0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000234530 | 0 to 1 Year | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.70% |
| C000234530 | 1 to 2 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000234530 | 2 to 3 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.70% |
| C000234530 | 3 to 5 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.10% |
| C000234530 | 5 to 10 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 33.30% |
| C000234530 | 10 to 20 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.60% |
| C000234530 | 20 to 30 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 23% |
| C000234530 | Greater than 30 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.40% |
| C000047967 | U.S. Treasury Inflation-Indexed NotesFR_912828N71 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.80% |
| C000047967 | U.S. Treasury Inflation-Indexed NotesFR_91282CBF7 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| C000047967 | U.S. Treasury Inflation-Indexed NotesFR_912828XL9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| C000047967 | U.S. Treasury Inflation-Indexed NotesFR_91282CJY8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000047967 | U.S. Treasury Inflation-Indexed NotesFR_91282CGK1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| C000047967 | U.S. Treasury Inflation-Indexed NotesFR_91282CCM1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| C000047967 | U.S. Treasury Inflation-Indexed NotesFR_912828V49 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| C000047967 | U.S. Treasury Inflation-Indexed NotesFR_912828S50 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| C000047967 | U.S. Treasury Inflation-Indexed NotesFR_912828Z37 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| C000047967 | U.S. Treasury Inflation-Indexed NotesFR_91282CDX6 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000047967 | 0 to 1 Year | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000047967 | 1 to 2 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.10% |
| C000047967 | 2 to 3 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.50% |
| C000047967 | 3 to 5 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 26.90% |
| C000047967 | 5 to 10 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 29.10% |
| C000047967 | 10 to 20 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.10% |
| C000047967 | 20 to 30 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.40% |
| C000055009 | U.S. Treasury NotesFR_91282CHV6 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| C000055009 | U.S. Treasury NotesFR_91282CJB8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000055009 | U.S. Treasury NotesFR_91282CFP1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000055009 | U.S. Treasury NotesFR_91282CJV4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000055009 | U.S. Treasury NotesFR_91282CHY0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000055009 | U.S. Treasury NotesFR_91282CKH3 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000055009 | U.S. Treasury NotesFR_91282CHU8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000055009 | U.S. Treasury NotesFR_91282CKS9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000055009 | U.S. Treasury NotesFR_91282CHH7 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000055009 | U.S. Treasury NotesFR_91282CGA3 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| C000055009 | 1 to 2 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 54.70% |
| C000055009 | 2 to 3 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 44.20% |
| C000047965 | U.S. Treasury NotesFR_91282CJJ1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.50% |
| C000047965 | U.S. Treasury NotesFR_91282CFF3 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000047965 | U.S. Treasury NotesFR_91282CFV8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000047965 | U.S. Treasury NotesFR_91282CHT1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000047965 | U.S. Treasury NotesFR_91282CHC8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000047965 | U.S. Treasury NotesFR_91282CGH8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000047965 | U.S. Treasury NotesFR_91282CJZ5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000047965 | U.S. Treasury NotesFR_91282CDW8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000047965 | U.S. Treasury NotesFR_91282CFU0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000047965 | U.S. Treasury NotesFR_91282CCS8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000047965 | 0 to 1 Year | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| C000047965 | 3 to 5 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 50.10% |
| C000047965 | 5 to 10 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 49.80% |
| C000047966 | U.S. Treasury BondsFR_912810TV0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| C000047966 | U.S. Treasury BondsFR_912810TX6 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| C000047966 | U.S. Treasury BondsFR_912810TT5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.50% |
| C000047966 | U.S. Treasury BondsFR_912810TL2 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000047966 | U.S. Treasury BondsFR_912810TN8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000047966 | U.S. Treasury BondsFR_912810TR9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000047966 | U.S. Treasury BondsFR_912810TU2 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000047966 | U.S. Treasury BondsFR_912810UA4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000047966 | U.S. Treasury BondsFR_912810TA6 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000047966 | U.S. Treasury BondsFR_912810TG3 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000047966 | 0 to 1 Year | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000047966 | 10 to 20 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 42.60% |
| C000047966 | 20 to 30 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 56.10% |
| C000055010 | State Street Institutional U.S. Government Money Market Fund, Class G SharesFR_924QSGII3_5.300652_2030-12-31 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| C000055010 | Goldman Sachs Bank USAFR_38151LAF7 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000055010 | Apple, Inc.FR_037833BZ2 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000055010 | AbbVie, Inc.FR_00287YBV0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000055010 | Pfizer Investment Enterprises Pte. Ltd.FR_716973AB8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000055010 | Microsoft Corp.FR_594918BR4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000055010 | Boeing Co.FR_097023DG7 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000055010 | JPMorgan Chase Bank NAFR_48125LRU8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000055010 | Amazon.com, Inc.FR_023135BX3 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000055010 | Bank of America Corp.FR_06051GJD2 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000055010 | SectorEnergy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.70% |
| C000055010 | SectorCommunications | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.30% |
| C000055010 | SectorTechnology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.20% |
| C000055010 | SectorConsumer, Non-Cyclical | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.60% |
| C000055010 | SectorConsumer, Cyclical | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.60% |
| C000055010 | SectorUtilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.40% |
| C000055010 | SectorIndustrial | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.30% |
| C000055010 | SectorBasic Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000055010 | SectorFinancial | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 46.20% |
| C000055010 | AssetCorporate Bonds & Notes | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.80% |
| C000055010 | AssetShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.40% |
| C000066454 | Bank of America Corp.FR_06051GLH0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000066454 | JPMorgan Chase & Co.FR_46647PDK9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000066454 | Citigroup, Inc.FR_172967PL9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000066454 | Wells Fargo Bank NAFR_94988J6D4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000066454 | Bristol-Myers Squibb Co.FR_110122BB3 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000066454 | Morgan StanleyFR_61747YFR1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000066454 | Wells Fargo & Co.FR_95000U3L5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000066454 | Bank of America Corp.FR_06051GJS9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.10% |
| C000066454 | Morgan StanleyFR_61746BDZ6 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.10% |
| C000066454 | Goldman Sachs Bank USAFR_38151LAG5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.10% |
| C000066454 | SectorEnergy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.80% |
| C000066454 | SectorCommunications | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.50% |
| C000066454 | SectorTechnology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.20% |
| C000066454 | SectorConsumer, Non-Cyclical | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.40% |
| C000066454 | SectorConsumer, Cyclical | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.40% |
| C000066454 | SectorUtilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.50% |
| C000066454 | SectorIndustrial | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.70% |
| C000066454 | SectorBasic Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000066454 | SectorFinancial | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 40.80% |
| C000066455 | Anheuser-Busch Cos. LLC/Anheuser-Busch InBev Worldwide, Inc.FR_03522AAJ9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000066455 | CVS Health Corp.FR_126650CZ1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000066455 | Goldman Sachs Group, Inc.FR_38141GFD1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000066455 | Pfizer Investment Enterprises Pte. Ltd.FR_716973AG7 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000066455 | AbbVie, Inc.FR_00287YDV8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000066455 | Shell International Finance BVFR_822582AD4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000066455 | Warnermedia Holdings, Inc.FR_55903VBE2 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000066455 | AT&T, Inc.FR_00206RLJ9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000066455 | Wells Fargo & Co.FR_95000U2M4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000066455 | Boeing Co.FR_097023CW3 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000066455 | SectorEnergy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.30% |
| C000066455 | SectorCommunications | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.50% |
| C000066455 | SectorTechnology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.90% |
| C000066455 | SectorConsumer, Non-Cyclical | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 23.70% |
| C000066455 | SectorConsumer, Cyclical | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.70% |
| C000066455 | SectorUtilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.50% |
| C000066455 | SectorIndustrial | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.70% |
| C000066455 | SectorBasic Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| C000066455 | SectorFinancial | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.70% |
| C000099139 | AbbVie, Inc.FR_00287YBV0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.10% |
| C000099139 | JPMorgan Chase & Co.FR_46647PDK9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000099139 | Bank of America Corp.FR_06051GLE7 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000099139 | JPMorgan Chase & Co.FR_46647PBW5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000099139 | Wells Fargo & Co.FR_94974BGP9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000099139 | General Motors Financial Co., Inc.FR_37045XBQ8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000099139 | Bank of America Corp.FR_06051GHZ5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000099139 | Bank of America Corp.FR_06051GFU8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.10% |
| C000099139 | Wells Fargo & Co.FR_95000U2F9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.10% |
| C000099139 | Amgen, Inc.FR_031162DT4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.10% |
| C000099139 | SectorEnergy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.90% |
| C000099139 | SectorCommunications | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.70% |
| C000099139 | SectorTechnology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.80% |
| C000099139 | SectorConsumer, Non-Cyclical | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.60% |
| C000099139 | SectorConsumer, Cyclical | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.40% |
| C000099139 | SectorUtilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.10% |
| C000099139 | SectorIndustrial | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.50% |
| C000099139 | SectorBasic Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.50% |
| C000099139 | SectorFinancial | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 32.40% |
| C000066453 | Federal National Mortgage AssociationFR_31418EBR0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000066453 | Federal National Mortgage AssociationFR_31418D6B3 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000066453 | Federal National Mortgage AssociationFR_3140XFFT3 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000066453 | Federal National Mortgage AssociationFR_31418EAN0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000066453 | Federal National Mortgage AssociationFR_3140XFXA4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000066453 | Federal National Mortgage AssociationFR_3140L3AV3 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000066453 | Federal National Mortgage AssociationFR_31418EGK0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000066453 | Federal Home Loan Mortgage Corp.FR_3132DWCN1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000066453 | Federal Home Loan Mortgage Corp.FR_3132DWCC5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000066453 | Federal National Mortgage AssociationFR_31418DXK3 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000066453 | AssetU.S. Government Agency Obligations | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 97.50% |
| C000066453 | AssetBonds and Notes | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| C000047971 | U.S. Treasury NotesFR_91282CKJ9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000047971 | U.S. Treasury NotesFR_91282CKU4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000047971 | U.S. Treasury NotesFR_91282CKX8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000047971 | U.S. Treasury NotesFR_91282CJN2 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000047971 | U.S. Treasury NotesFR_91282CJX0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000047971 | U.S. Treasury NotesFR_91282CGT2 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000047971 | U.S. Treasury BondsFR_912810TQ1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000047971 | U.S. Treasury BondsFR_912810QE1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000047971 | U.S. Treasury NotesFR_91282CKB6 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000047971 | U.S. Treasury BondsFR_912810TZ1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000047971 | AssetCorporate Bonds & Notes | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 21.50% |
| C000047971 | AssetShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000047971 | AssetU.S. Government Agency Obligations | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 26.70% |
| C000047971 | AssetBonds and Notes | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.30% |
| C000047971 | AssetU.S. Treasury Obligations | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 37.80% |
| C000047971 | AssetForeign Government Obligations | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| C000047971 | AssetMortgage-Backed Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000047971 | AssetMunicipal Bonds & Notes | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000113018 | Medline Borrower LPFR_62482BAA0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000113018 | Cloud Software Group, Inc.FR_88632QAE3 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000113018 | Cloud Software Group, Inc.FR_18912UAA0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000113018 | DISH Network Corp.FR_25470MAG4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000113018 | Directv Financing LLC/Directv Financing Co.-Obligor, Inc.FR_25461LAA0 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000113018 | HUB International Ltd.FR_44332PAH4 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000113018 | Venture Global LNG, Inc.FR_92332YAC5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000113018 | Carnival Corp.FR_143658BN1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000113018 | American Airlines, Inc./AAdvantage Loyalty IP Ltd.FR_00253XAB7 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000113018 | CCO Holdings LLC/CCO Holdings Capital Corp.FR_1248EPBT9 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000113018 | SectorEnergy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.50% |
| C000113018 | SectorCommunications | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14% |
| C000113018 | SectorTechnology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.10% |
| C000113018 | SectorConsumer, Non-Cyclical | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.80% |
| C000113018 | SectorConsumer, Cyclical | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 20.10% |
| C000113018 | SectorUtilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000113018 | SectorIndustrial | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.50% |
| C000113018 | SectorBasic Materials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.20% |
| C000113018 | SectorFinancial | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13% |
| C000113018 | SectorDiversified | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000113018 | AssetCorporate Bonds & Notes | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.10% |
| C000113018 | AssetShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7% |
| C000249829 | U.S. Treasury NotesFR_91282CJJ1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000249829 | U.S. Treasury NotesFR_91282CFF3 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000249829 | U.S. Treasury NotesFR_91282CFV8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000249829 | U.S. Treasury NotesFR_91282CHT1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000249829 | U.S. Treasury NotesFR_91282CHC8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000249829 | U.S. Treasury NotesFR_91282CJZ5 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000249829 | U.S. Treasury NotesFR_91282CCS8 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000249829 | U.S. Treasury NotesFR_91282CGM7 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000249829 | U.S. Treasury NotesFR_91282CEP2 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000249829 | U.S. Treasury NotesFR_91282CDJ7 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000249829 | 1 to 2 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19% |
| C000249829 | 2 to 3 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.20% |
| C000249829 | 3 to 5 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 23.60% |
| C000249829 | 5 to 10 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 23.30% |
| C000249829 | 10 to 20 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.20% |
| C000249829 | 20 to 30 Years | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.40% |
