| Shareholder Report | 12 Months Ended |
| Oct. 31, 2024 USD ($) Holding |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | LORD ABBETT AFFILIATED FUND INC |
| Entity Central Index Key | 0000002691 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Oct. 31, 2024 |
| C000018428 | |
| Shareholder Report [Line Items] | |
| Fund Name | Lord Abbett Affiliated Fund Inc. |
| Class Name | Class A |
| Trading Symbol | LAFFX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Lord Abbett Affiliated Fund Inc. for the period of November 1, 2023 to October 31, 2024, as well as certain changes to the Fund. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at lordabbett.com/FundDocuments |
| Additional Information Phone Number | 888-522-2388 |
| Additional Information Website | lordabbett.com/FundDocuments</span>" id="sjs-B19"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 20px; margin: 0px; overflow: visible; text-align: left;">lordabbett.com/FundDocuments</span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A $81 0.69% |
| Expenses Paid, Amount | $ 81 |
| Expense Ratio, Percent | 0.69% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? For the fiscal year ended October 31, 2024, the Fund returned 34.00%, reflecting performance at the net asset value (NAV) of Class A shares, compared to the 30.98% of a securities market index with investment characteristics similar to those of the Fund, the Russell 1000 Value Index. The Fund's broad-based securities market index, the S&P 500 Index, returned 38.02% over the same period. Positive factors for the markets included momentum around the soft-landing narrative, which was supported by signs of a cooling labor market and a slowing economy. This led to the U.S. Federal Reserve (Fed) lowering its policy rate by 50 basis points in September. There were also increased expectations for further rate cuts in 2024, which was influenced by mixed economic data, including softer consumer price index (CPI) reports and fluctuating job market indicators, which sparked recession fears but were mostly balanced by strong consumer spending and retail sales. Top contributors to performance: Top detractors from performance: |
| Performance Past Does Not Indicate Future [Text] | The Fund's past performance is no guarantee of future results. |
| Line Graph [Table Text Block] | Class A with load Russell 1000 Value Index Lipper Equity Income Fund Average S&P 500 Index 10/31/2014 $9,423 $10,000 $10,000 $10,000 11/30/2014 $9,692 $10,205 $10,189 $10,269 12/31/2014 $9,719 $10,267 $10,142 $10,243 1/31/2015 $9,408 $9,857 $9,885 $9,936 2/28/2015 $9,898 $10,334 $10,345 $10,507 3/31/2015 $9,753 $10,193 $10,197 $10,340 4/30/2015 $9,825 $10,289 $10,301 $10,440 5/31/2015 $9,897 $10,412 $10,355 $10,574 6/30/2015 $9,633 $10,204 $9,839 $10,369 7/31/2015 $9,718 $10,249 $9,921 $10,586 8/31/2015 $9,108 $9,639 $9,364 $9,948 9/30/2015 $8,904 $9,348 $9,109 $9,702 10/31/2015 $9,542 $10,053 $9,740 $10,520 11/30/2015 $9,495 $10,091 $9,717 $10,551 12/31/2015 $9,310 $9,874 $9,519 $10,385 1/31/2016 $8,861 $9,364 $9,146 $9,869 2/29/2016 $8,921 $9,362 $9,189 $9,856 3/31/2016 $9,545 $10,036 $9,786 $10,525 4/30/2016 $9,645 $10,247 $9,884 $10,566 5/31/2016 $9,778 $10,406 $10,004 $10,755 6/30/2016 $9,846 $10,496 $10,123 $10,783 7/31/2016 $10,180 $10,801 $10,417 $11,181 8/31/2016 $10,213 $10,884 $10,409 $11,196 9/30/2016 $10,210 $10,861 $10,379 $11,199 10/31/2016 $10,096 $10,693 $10,186 $10,994 11/30/2016 $10,714 $11,304 $10,608 $11,401 12/31/2016 $10,924 $11,587 $10,839 $11,627 1/31/2017 $10,953 $11,669 $10,945 $11,847 2/28/2017 $11,452 $12,089 $11,294 $12,318 3/31/2017 $11,379 $11,965 $11,258 $12,332 4/30/2017 $11,422 $11,943 $11,357 $12,459 5/31/2017 $11,487 $11,931 $11,408 $12,634 6/30/2017 $11,606 $12,126 $11,515 $12,713 7/31/2017 $11,722 $12,287 $11,669 $12,974 8/31/2017 $11,578 $12,144 $11,590 $13,014 9/30/2017 $11,960 $12,504 $11,923 $13,283 10/31/2017 $12,069 $12,595 $12,057 $13,593 11/30/2017 $12,483 $12,980 $12,411 $14,009 12/31/2017 $12,685 $13,170 $12,568 $14,165 1/31/2018 $13,207 $13,679 $13,044 $14,976 2/28/2018 $12,621 $13,026 $12,454 $14,424 3/31/2018 $12,383 $12,797 $12,250 $14,058 4/30/2018 $12,399 $12,839 $12,305 $14,112 5/31/2018 $12,471 $12,915 $12,457 $14,451 6/30/2018 $12,444 $12,947 $12,497 $14,540 7/31/2018 $12,988 $13,460 $12,945 $15,081 8/31/2018 $13,231 $13,659 $13,150 $15,573 9/30/2018 $13,257 $13,686 $13,159 $15,662 10/31/2018 $12,564 $12,977 $12,423 $14,591 11/30/2018 $12,947 $13,364 $12,740 $14,888 12/31/2018 $11,739 $12,081 $11,660 $13,544 1/31/2019 $12,585 $13,021 $12,464 $14,629 2/28/2019 $12,986 $13,438 $12,833 $15,099 3/31/2019 $12,975 $13,523 $12,938 $15,393 4/30/2019 $13,432 $14,003 $13,345 $16,016 5/31/2019 $12,581 $13,102 $12,571 $14,998 6/30/2019 $13,470 $14,043 $13,347 $16,055 7/31/2019 $13,650 $14,159 $13,476 $16,286 8/31/2019 $13,289 $13,743 $13,221 $16,028 9/30/2019 $13,808 $14,233 $13,624 $16,328 10/31/2019 $13,917 $14,432 $13,767 $16,681 11/30/2019 $14,360 $14,878 $14,110 $17,287 12/31/2019 $14,702 $15,288 $14,491 $17,809 1/31/2020 $14,264 $14,959 $14,204 $17,802 2/29/2020 $12,830 $13,510 $12,909 $16,336 3/31/2020 $10,597 $11,201 $10,929 $14,319 4/30/2020 $11,732 $12,460 $12,086 $16,154 5/31/2020 $12,210 $12,888 $12,538 $16,923 6/30/2020 $12,247 $12,802 $12,612 $17,260 7/31/2020 $12,672 $13,308 $13,098 $18,233 8/31/2020 $13,248 $13,858 $13,643 $19,544 9/30/2020 $12,890 $13,518 $13,281 $18,801 10/31/2020 $12,605 $13,340 $13,042 $18,301 11/30/2020 $14,094 $15,135 $14,613 $20,305 12/31/2020 $14,515 $15,715 $15,106 $21,085 1/31/2021 $14,239 $15,571 $14,997 $20,872 2/28/2021 $14,991 $16,512 $15,597 $21,448 3/31/2021 $15,783 $17,484 $16,520 $22,387 4/30/2021 $16,547 $18,183 $17,162 $23,582 5/31/2021 $16,891 $18,607 $17,538 $23,747 6/30/2021 $16,672 $18,394 $17,468 $24,301 7/31/2021 $16,988 $18,541 $17,665 $24,878 8/31/2021 $17,477 $18,909 $18,022 $25,635 9/30/2021 $16,655 $18,251 $17,310 $24,443 10/31/2021 $17,743 $19,178 $18,262 $26,155 11/30/2021 $17,382 $18,502 $17,814 $25,974 12/31/2021 $18,397 $19,669 $18,907 $27,138 1/31/2022 $17,545 $19,211 $18,453 $25,734 2/28/2022 $17,228 $18,988 $18,175 $24,963 3/31/2022 $17,589 $19,524 $18,657 $25,890 4/30/2022 $16,465 $18,423 $17,697 $23,632 5/31/2022 $16,674 $18,781 $18,038 $23,676 6/30/2022 $15,497 $17,140 $16,675 $21,721 7/31/2022 $16,447 $18,276 $17,648 $23,724 8/31/2022 $16,007 $17,732 $17,112 $22,757 9/30/2022 $14,860 $16,177 $15,691 $20,661 10/31/2022 $16,247 $17,836 $17,182 $22,334 11/30/2022 $17,177 $18,950 $18,224 $23,582 12/31/2022 $16,585 $18,186 $17,500 $22,223 1/31/2023 $16,895 $19,129 $18,256 $23,619 2/28/2023 $16,489 $18,454 $17,703 $23,043 3/31/2023 $16,142 $18,369 $17,668 $23,889 4/30/2023 $16,400 $18,646 $17,899 $24,262 5/31/2023 $15,874 $17,927 $17,285 $24,367 6/30/2023 $16,780 $19,118 $18,331 $25,977 7/31/2023 $17,406 $19,790 $18,923 $26,812 8/31/2023 $17,104 $19,256 $18,488 $26,385 9/30/2023 $16,499 $18,513 $17,752 $25,127 10/31/2023 $16,163 $17,860 $17,287 $24,599 11/30/2023 $17,463 $19,207 $18,519 $26,845 12/31/2023 $18,325 $20,271 $19,477 $28,065 1/31/2024 $18,455 $20,292 $19,524 $28,536 2/29/2024 $19,379 $21,041 $20,132 $30,060 3/31/2024 $20,214 $22,092 $20,982 $31,027 4/30/2024 $19,352 $21,149 $20,200 $29,760 5/31/2024 $19,952 $21,819 $20,876 $31,236 6/30/2024 $20,010 $21,614 $20,912 $32,356 7/31/2024 $20,777 $22,719 $21,765 $32,750 8/31/2024 $21,259 $23,328 $22,299 $33,545 9/30/2024 $21,483 $23,652 $22,611 $34,261 10/31/2024 $21,659 $23,392 $22,383 $33,950 |
| Average Annual Return [Table Text Block] | AATR 1 Year 5 Years 10 Years Class A at NAV 34.00% 9.25% 8.68% Class A with sales charge 26.30% 7.96% 8.03% Russell 1000 Value Index 30.98% 10.14% 8.87% Lipper Equity Income Fund Average 29.48% 10.21% 8.39% S&P 500 Index Footnote Reference 38.02% 15.27% 13.00% |
| No Deduction of Taxes [Text Block] | The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. |
| AssetsNet | $ 6,234,840,583 |
| Holdings Count | Holding | 70 |
| Advisory Fees Paid, Amount | $ 18,564,515 |
| InvestmentCompanyPortfolioTurnover | 44% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 Total Net Assets $6,234,840,583 # of Portfolio Holdings 70 Portfolio Turnover Rate 44% Total Advisory Fees Paid $18,564,515 |
| Holdings [Text Block] | Portfolio Holdings Presented by Sector Footnote Reference % Footnote Reference Communication Services 3.12 % Consumer Discretionary 5.74 % Consumer Staples 8.74 % Energy 7.46 % Financials 24.27 % Health Care 10.84 % Industrials 15.91 % Information Technology 9.79 % Materials 5.80 % Utilities 5.34 % Repurchase Agreements 1.66 % Money Market Funds Footnote Reference 1.20 % Time Deposits Footnote Reference 0.13 % Total 100.00% Footnote Description Footnote A sector may comprise several industries Footnote Represents percent of total investments, which excludes derivatives. Footnote Securities were purchased with the cash collateral from loaned securities. |
| Material Fund Change [Text Block] | Summary of Fund Changes There were no material fund changes during the period. |
| Summary of Change Legend [Text Block] | There were no material fund changes during the period. |
| C000018430 | |
| Shareholder Report [Line Items] | |
| Fund Name | Lord Abbett Affiliated Fund Inc. |
| Class Name | Class C |
| Trading Symbol | LAFCX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Lord Abbett Affiliated Fund Inc. for the period of November 1, 2023 to October 31, 2024, as well as certain changes to the Fund. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at lordabbett.com/FundDocuments |
| Additional Information Phone Number | 888-522-2388 |
| Additional Information Website | lordabbett.com/FundDocuments</span>" id="sjs-B45"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 20px; margin: 0px; overflow: visible; text-align: left;">lordabbett.com/FundDocuments</span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C $168 1.44% |
| Expenses Paid, Amount | $ 168 |
| Expense Ratio, Percent | 1.44% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? For the fiscal year ended October 31, 2024, the Fund returned 33.04%, reflecting performance at the net asset value (NAV) of Class C shares, compared to the 30.98% of a securities market index with investment characteristics similar to those of the Fund, the Russell 1000 Value Index. The Fund's broad-based securities market index, the S&P 500 Index, returned 38.02% over the same period. Positive factors for the markets included momentum around the soft-landing narrative, which was supported by signs of a cooling labor market and a slowing economy. This led to the U.S. Federal Reserve (Fed) lowering its policy rate by 50 basis points in September. There were also increased expectations for further rate cuts in 2024, which was influenced by mixed economic data, including softer consumer price index (CPI) reports and fluctuating job market indicators, which sparked recession fears but were mostly balanced by strong consumer spending and retail sales. Top contributors to performance: Top detractors from performance: |
| Performance Past Does Not Indicate Future [Text] | The Fund's past performance is no guarantee of future results. |
| Line Graph [Table Text Block] | Class C with load Russell 1000 Value Index Lipper Equity Income Fund Average S&P 500 Index 10/31/2014 $10,000 $10,000 $10,000 $10,000 11/30/2014 $10,280 $10,205 $10,189 $10,269 12/31/2014 $10,301 $10,267 $10,142 $10,243 1/31/2015 $9,966 $9,857 $9,885 $9,936 2/28/2015 $10,479 $10,334 $10,345 $10,507 3/31/2015 $10,325 $10,193 $10,197 $10,340 4/30/2015 $10,395 $10,289 $10,301 $10,440 5/31/2015 $10,464 $10,412 $10,355 $10,574 6/30/2015 $10,178 $10,204 $9,839 $10,369 7/31/2015 $10,255 $10,249 $9,921 $10,586 8/31/2015 $9,611 $9,639 $9,364 $9,948 9/30/2015 $9,389 $9,348 $9,109 $9,702 10/31/2015 $10,055 $10,053 $9,740 $10,520 11/30/2015 $9,999 $10,091 $9,717 $10,551 12/31/2015 $9,793 $9,874 $9,519 $10,385 1/31/2016 $9,314 $9,364 $9,146 $9,869 2/29/2016 $9,376 $9,362 $9,189 $9,856 3/31/2016 $10,022 $10,036 $9,786 $10,525 4/30/2016 $10,120 $10,247 $9,884 $10,566 5/31/2016 $10,259 $10,406 $10,004 $10,755 6/30/2016 $10,319 $10,496 $10,123 $10,783 7/31/2016 $10,662 $10,801 $10,417 $11,181 8/31/2016 $10,690 $10,884 $10,409 $11,196 9/30/2016 $10,687 $10,861 $10,379 $11,199 10/31/2016 $10,561 $10,693 $10,186 $10,994 11/30/2016 $11,200 $11,304 $10,608 $11,401 12/31/2016 $11,414 $11,587 $10,839 $11,627 1/31/2017 $11,429 $11,669 $10,945 $11,847 2/28/2017 $11,950 $12,089 $11,294 $12,318 3/31/2017 $11,859 $11,965 $11,258 $12,332 4/30/2017 $11,904 $11,943 $11,357 $12,459 5/31/2017 $11,964 $11,931 $11,408 $12,634 6/30/2017 $12,077 $12,126 $11,515 $12,713 7/31/2017 $12,189 $12,287 $11,669 $12,974 8/31/2017 $12,032 $12,144 $11,590 $13,014 9/30/2017 $12,422 $12,504 $11,923 $13,283 10/31/2017 $12,527 $12,595 $12,057 $13,593 11/30/2017 $12,957 $12,980 $12,411 $14,009 12/31/2017 $13,151 $13,170 $12,568 $14,165 1/31/2018 $13,691 $13,679 $13,044 $14,976 2/28/2018 $13,068 $13,026 $12,454 $14,424 3/31/2018 $12,812 $12,797 $12,250 $14,058 4/30/2018 $12,821 $12,839 $12,305 $14,112 5/31/2018 $12,887 $12,915 $12,457 $14,451 6/30/2018 $12,854 $12,947 $12,497 $14,540 7/31/2018 $13,405 $13,460 $12,945 $15,081 8/31/2018 $13,648 $13,659 $13,150 $15,573 9/30/2018 $13,665 $13,686 $13,159 $15,662 10/31/2018 $12,945 $12,977 $12,423 $14,591 11/30/2018 $13,330 $13,364 $12,740 $14,888 12/31/2018 $12,073 $12,081 $11,660 $13,544 1/31/2019 $12,941 $13,021 $12,464 $14,629 2/28/2019 $13,342 $13,438 $12,833 $15,099 3/31/2019 $13,324 $13,523 $12,938 $15,393 4/30/2019 $13,782 $14,003 $13,345 $16,016 5/31/2019 $12,902 $13,102 $12,571 $14,998 6/30/2019 $13,813 $14,043 $13,347 $16,055 7/31/2019 $13,988 $14,159 $13,476 $16,286 8/31/2019 $13,601 $13,743 $13,221 $16,028 9/30/2019 $14,122 $14,233 $13,624 $16,328 10/31/2019 $14,224 $14,432 $13,767 $16,681 11/30/2019 $14,676 $14,878 $14,110 $17,287 12/31/2019 $15,015 $15,288 $14,491 $17,809 1/31/2020 $14,561 $14,959 $14,204 $17,802 2/29/2020 $13,092 $13,510 $12,909 $16,336 3/31/2020 $10,802 $11,201 $10,929 $14,319 4/30/2020 $11,953 $12,460 $12,086 $16,154 5/31/2020 $12,429 $12,888 $12,538 $16,923 6/30/2020 $12,462 $12,802 $12,612 $17,260 7/31/2020 $12,882 $13,308 $13,098 $18,233 8/31/2020 $13,456 $13,858 $13,643 $19,544 9/30/2020 $13,094 $13,518 $13,281 $18,801 10/31/2020 $12,797 $13,340 $13,042 $18,301 11/30/2020 $14,292 $15,135 $14,613 $20,305 12/31/2020 $14,718 $15,715 $15,106 $21,085 1/31/2021 $14,420 $15,571 $14,997 $20,872 2/28/2021 $15,179 $16,512 $15,597 $21,448 3/31/2021 $15,967 $17,484 $16,520 $22,387 4/30/2021 $16,727 $18,183 $17,162 $23,582 5/31/2021 $17,064 $18,607 $17,538 $23,747 6/30/2021 $16,840 $18,394 $17,468 $24,301 7/31/2021 $17,148 $18,541 $17,665 $24,878 8/31/2021 $17,630 $18,909 $18,022 $25,635 9/30/2021 $16,790 $18,251 $17,310 $24,443 10/31/2021 $17,871 $19,178 $18,262 $26,155 11/30/2021 $17,500 $18,502 $17,814 $25,974 12/31/2021 $18,504 $19,669 $18,907 $27,138 1/31/2022 $17,642 $19,211 $18,453 $25,734 2/28/2022 $17,304 $18,988 $18,175 $24,963 3/31/2022 $17,662 $19,524 $18,657 $25,890 4/30/2022 $16,529 $18,423 $17,697 $23,632 5/31/2022 $16,718 $18,781 $18,038 $23,676 6/30/2022 $15,540 $17,140 $16,675 $21,721 7/31/2022 $16,477 $18,276 $17,648 $23,724 8/31/2022 $16,019 $17,732 $17,112 $22,757 9/30/2022 $14,874 $16,177 $15,691 $20,661 10/31/2022 $16,244 $17,836 $17,182 $22,334 11/30/2022 $17,170 $18,950 $18,224 $23,582 12/31/2022 $16,561 $18,186 $17,500 $22,223 1/31/2023 $16,869 $19,129 $18,256 $23,619 2/28/2023 $16,444 $18,454 $17,703 $23,043 3/31/2023 $16,093 $18,369 $17,668 $23,889 4/30/2023 $16,338 $18,646 $17,899 $24,262 5/31/2023 $15,806 $17,927 $17,285 $24,367 6/30/2023 $16,703 $19,118 $18,331 $25,977 7/31/2023 $17,300 $19,790 $18,923 $26,812 8/31/2023 $16,991 $19,256 $18,488 $26,385 9/30/2023 $16,392 $18,513 $17,752 $25,127 10/31/2023 $16,040 $17,860 $17,287 $24,599 11/30/2023 $17,321 $19,207 $18,519 $26,845 12/31/2023 $18,169 $20,271 $19,477 $28,065 1/31/2024 $18,276 $20,292 $19,524 $28,536 2/29/2024 $19,186 $21,041 $20,132 $30,060 3/31/2024 $19,992 $22,092 $20,982 $31,027 4/30/2024 $19,134 $21,149 $20,200 $29,760 5/31/2024 $19,713 $21,819 $20,876 $31,236 6/30/2024 $19,763 $21,614 $20,912 $32,356 7/31/2024 $20,515 $22,719 $21,765 $32,750 8/31/2024 $20,966 $23,328 $22,299 $33,545 9/30/2024 $21,178 $23,652 $22,611 $34,261 10/31/2024 $21,340 $23,392 $22,383 $33,950 |
| Average Annual Return [Table Text Block] | AATR 1 Year 5 Years 10 Years Class C at NAV 33.04% 8.45% 7.87% Class C with sales charge 32.04% 8.45% 7.87% Russell 1000 Value Index 30.98% 10.14% 8.87% Lipper Equity Income Fund Average 29.48% 10.21% 8.39% S&P 500 Index Footnote Reference 38.02% 15.27% 13.00% |
| No Deduction of Taxes [Text Block] | The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. |
| AssetsNet | $ 6,234,840,583 |
| Holdings Count | Holding | 70 |
| Advisory Fees Paid, Amount | $ 18,564,515 |
| InvestmentCompanyPortfolioTurnover | 44% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 Total Net Assets $6,234,840,583 # of Portfolio Holdings 70 Portfolio Turnover Rate 44% Total Advisory Fees Paid $18,564,515 |
| Holdings [Text Block] | Portfolio Holdings Presented by Sector Footnote Reference % Footnote Reference Communication Services 3.12 % Consumer Discretionary 5.74 % Consumer Staples 8.74 % Energy 7.46 % Financials 24.27 % Health Care 10.84 % Industrials 15.91 % Information Technology 9.79 % Materials 5.80 % Utilities 5.34 % Repurchase Agreements 1.66 % Money Market Funds Footnote Reference 1.20 % Time Deposits Footnote Reference 0.13 % Total 100.00% Footnote Description Footnote A sector may comprise several industries Footnote Represents percent of total investments, which excludes derivatives. Footnote Securities were purchased with the cash collateral from loaned securities. |
| Material Fund Change [Text Block] | Summary of Fund Changes There were no material fund changes during the period. |
| Summary of Change Legend [Text Block] | There were no material fund changes during the period. |
| C000054699 | |
| Shareholder Report [Line Items] | |
| Fund Name | Lord Abbett Affiliated Fund Inc. |
| Class Name | Class F |
| Trading Symbol | LAAFX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Lord Abbett Affiliated Fund Inc. for the period of November 1, 2023 to October 31, 2024, as well as certain changes to the Fund. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at lordabbett.com/FundDocuments |
| Additional Information Phone Number | 888-522-2388 |
| Additional Information Website | lordabbett.com/FundDocuments</span>" id="sjs-B71"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 20px; margin: 0px; overflow: visible; text-align: left;">lordabbett.com/FundDocuments</span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class F $63 0.54% |
| Expenses Paid, Amount | $ 63 |
| Expense Ratio, Percent | 0.54% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? For the fiscal year ended October 31, 2024, the Fund returned 34.14%, reflecting performance at the net asset value (NAV) of Class F shares, compared to the 30.98% of a securities market index with investment characteristics similar to those of the Fund, the Russell 1000 Value Index. The Fund's broad-based securities market index, the S&P 500 Index, returned 38.02% over the same period. Positive factors for the markets included momentum around the soft-landing narrative, which was supported by signs of a cooling labor market and a slowing economy. This led to the U.S. Federal Reserve (Fed) lowering its policy rate by 50 basis points in September. There were also increased expectations for further rate cuts in 2024, which was influenced by mixed economic data, including softer consumer price index (CPI) reports and fluctuating job market indicators, which sparked recession fears but were mostly balanced by strong consumer spending and retail sales. Top contributors to performance: Top detractors from performance: |
| Performance Past Does Not Indicate Future [Text] | The Fund's past performance is no guarantee of future results. |
| Line Graph [Table Text Block] | Class F Russell 1000 Value Index Lipper Equity Income Fund Average S&P 500 Index 10/31/2014 $10,000 $10,000 $10,000 $10,000 11/30/2014 $10,286 $10,205 $10,189 $10,269 12/31/2014 $10,318 $10,267 $10,142 $10,243 1/31/2015 $9,988 $9,857 $9,885 $9,936 2/28/2015 $10,508 $10,334 $10,345 $10,507 3/31/2015 $10,358 $10,193 $10,197 $10,340 4/30/2015 $10,434 $10,289 $10,301 $10,440 5/31/2015 $10,517 $10,412 $10,355 $10,574 6/30/2015 $10,234 $10,204 $9,839 $10,369 7/31/2015 $10,324 $10,249 $9,921 $10,586 8/31/2015 $9,676 $9,639 $9,364 $9,948 9/30/2015 $9,463 $9,348 $9,109 $9,702 10/31/2015 $10,142 $10,053 $9,740 $10,520 11/30/2015 $10,098 $10,091 $9,717 $10,551 12/31/2015 $9,899 $9,874 $9,519 $10,385 1/31/2016 $9,422 $9,364 $9,146 $9,869 2/29/2016 $9,485 $9,362 $9,189 $9,856 3/31/2016 $10,145 $10,036 $9,786 $10,525 4/30/2016 $10,259 $10,247 $9,884 $10,566 5/31/2016 $10,400 $10,406 $10,004 $10,755 6/30/2016 $10,476 $10,496 $10,123 $10,783 7/31/2016 $10,832 $10,801 $10,417 $11,181 8/31/2016 $10,867 $10,884 $10,409 $11,196 9/30/2016 $10,869 $10,861 $10,379 $11,199 10/31/2016 $10,747 $10,693 $10,186 $10,994 11/30/2016 $11,413 $11,304 $10,608 $11,401 12/31/2016 $11,633 $11,587 $10,839 $11,627 1/31/2017 $11,664 $11,669 $10,945 $11,847 2/28/2017 $12,195 $12,089 $11,294 $12,318 3/31/2017 $12,115 $11,965 $11,258 $12,332 4/30/2017 $12,168 $11,943 $11,357 $12,459 5/31/2017 $12,245 $11,931 $11,408 $12,634 6/30/2017 $12,370 $12,126 $11,515 $12,713 7/31/2017 $12,493 $12,287 $11,669 $12,974 8/31/2017 $12,339 $12,144 $11,590 $13,014 9/30/2017 $12,744 $12,504 $11,923 $13,283 10/31/2017 $12,860 $12,595 $12,057 $13,593 11/30/2017 $13,309 $12,980 $12,411 $14,009 12/31/2017 $13,529 $13,170 $12,568 $14,165 1/31/2018 $14,085 $13,679 $13,044 $14,976 2/28/2018 $13,461 $13,026 $12,454 $14,424 3/31/2018 $13,203 $12,797 $12,250 $14,058 4/30/2018 $13,229 $12,839 $12,305 $14,112 5/31/2018 $13,306 $12,915 $12,457 $14,451 6/30/2018 $13,273 $12,947 $12,497 $14,540 7/31/2018 $13,862 $13,460 $12,945 $15,081 8/31/2018 $14,113 $13,659 $13,150 $15,573 9/30/2018 $14,146 $13,686 $13,159 $15,662 10/31/2018 $13,423 $12,977 $12,423 $14,591 11/30/2018 $13,832 $13,364 $12,740 $14,888 12/31/2018 $12,538 $12,081 $11,660 $13,544 1/31/2019 $13,452 $13,021 $12,464 $14,629 2/28/2019 $13,880 $13,438 $12,833 $15,099 3/31/2019 $13,873 $13,523 $12,938 $15,393 4/30/2019 $14,352 $14,003 $13,345 $16,016 5/31/2019 $13,452 $13,102 $12,571 $14,998 6/30/2019 $14,407 $14,043 $13,347 $16,055 7/31/2019 $14,599 $14,159 $13,476 $16,286 8/31/2019 $14,214 $13,743 $13,221 $16,028 9/30/2019 $14,764 $14,233 $13,624 $16,328 10/31/2019 $14,890 $14,432 $13,767 $16,681 11/30/2019 $15,374 $14,878 $14,110 $17,287 12/31/2019 $15,735 $15,288 $14,491 $17,809 1/31/2020 $15,267 $14,959 $14,204 $17,802 2/29/2020 $13,744 $13,510 $12,909 $16,336 3/31/2020 $11,340 $11,201 $10,929 $14,319 4/30/2020 $12,564 $12,460 $12,086 $16,154 5/31/2020 $13,076 $12,888 $12,538 $16,923 6/30/2020 $13,111 $12,802 $12,612 $17,260 7/31/2020 $13,565 $13,308 $13,098 $18,233 8/31/2020 $14,192 $13,858 $13,643 $19,544 9/30/2020 $13,814 $13,518 $13,281 $18,801 10/31/2020 $13,509 $13,340 $13,042 $18,301 11/30/2020 $15,104 $15,135 $14,613 $20,305 12/31/2020 $15,560 $15,715 $15,106 $21,085 1/31/2021 $15,264 $15,571 $14,997 $20,872 2/28/2021 $16,070 $16,512 $15,597 $21,448 3/31/2021 $16,924 $17,484 $16,520 $22,387 4/30/2021 $17,743 $18,183 $17,162 $23,582 5/31/2021 $18,112 $18,607 $17,538 $23,747 6/30/2021 $17,883 $18,394 $17,468 $24,301 7/31/2021 $18,222 $18,541 $17,665 $24,878 8/31/2021 $18,746 $18,909 $18,022 $25,635 9/30/2021 $17,872 $18,251 $17,310 $24,443 10/31/2021 $19,038 $19,178 $18,262 $26,155 11/30/2021 $18,651 $18,502 $17,814 $25,974 12/31/2021 $19,748 $19,669 $18,907 $27,138 1/31/2022 $18,844 $19,211 $18,453 $25,734 2/28/2022 $18,494 $18,988 $18,175 $24,963 3/31/2022 $18,887 $19,524 $18,657 $25,890 4/30/2022 $17,692 $18,423 $17,697 $23,632 5/31/2022 $17,905 $18,781 $18,038 $23,676 6/30/2022 $16,647 $17,140 $16,675 $21,721 7/31/2022 $17,666 $18,276 $17,648 $23,724 8/31/2022 $17,194 $17,732 $17,112 $22,757 9/30/2022 $15,979 $16,177 $15,691 $20,661 10/31/2022 $17,457 $17,836 $17,182 $22,334 11/30/2022 $18,468 $18,950 $18,224 $23,582 12/31/2022 $17,827 $18,186 $17,500 $22,223 1/31/2023 $18,160 $19,129 $18,256 $23,619 2/28/2023 $17,724 $18,454 $17,703 $23,043 3/31/2023 $17,367 $18,369 $17,668 $23,889 4/30/2023 $17,632 $18,646 $17,899 $24,262 5/31/2023 $17,079 $17,927 $17,285 $24,367 6/30/2023 $18,059 $19,118 $18,331 $25,977 7/31/2023 $18,719 $19,790 $18,923 $26,812 8/31/2023 $18,395 $19,256 $18,488 $26,385 9/30/2023 $17,763 $18,513 $17,752 $25,127 10/31/2023 $17,402 $17,860 $17,287 $24,599 11/30/2023 $18,798 $19,207 $18,519 $26,845 12/31/2023 $19,732 $20,271 $19,477 $28,065 1/31/2024 $19,872 $20,292 $19,524 $28,536 2/29/2024 $20,866 $21,041 $20,132 $30,060 3/31/2024 $21,760 $22,092 $20,982 $31,027 4/30/2024 $20,844 $21,149 $20,200 $29,760 5/31/2024 $21,490 $21,819 $20,876 $31,236 6/30/2024 $21,560 $21,614 $20,912 $32,356 7/31/2024 $22,385 $22,719 $21,765 $32,750 8/31/2024 $22,904 $23,328 $22,299 $33,545 9/30/2024 $23,153 $23,652 $22,611 $34,261 10/31/2024 $23,343 $23,392 $22,383 $33,950 |
| Average Annual Return [Table Text Block] | AATR 1 Year 5 Years 10 Years Class F at NAV 34.14% 9.41% 8.85% Russell 1000 Value Index 30.98% 10.14% 8.87% Lipper Equity Income Fund Average 29.48% 10.21% 8.39% S&P 500 Index Footnote Reference 38.02% 15.27% 13.00% |
| No Deduction of Taxes [Text Block] | The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. |
| AssetsNet | $ 6,234,840,583 |
| Holdings Count | Holding | 70 |
| Advisory Fees Paid, Amount | $ 18,564,515 |
| InvestmentCompanyPortfolioTurnover | 44% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 Total Net Assets $6,234,840,583 # of Portfolio Holdings 70 Portfolio Turnover Rate 44% Total Advisory Fees Paid $18,564,515 |
| Holdings [Text Block] | Portfolio Holdings Presented by Sector Footnote Reference % Footnote Reference Communication Services 3.12 % Consumer Discretionary 5.74 % Consumer Staples 8.74 % Energy 7.46 % Financials 24.27 % Health Care 10.84 % Industrials 15.91 % Information Technology 9.79 % Materials 5.80 % Utilities 5.34 % Repurchase Agreements 1.66 % Money Market Funds Footnote Reference 1.20 % Time Deposits Footnote Reference 0.13 % Total 100.00% Footnote Description Footnote A sector may comprise several industries Footnote Represents percent of total investments, which excludes derivatives. Footnote Securities were purchased with the cash collateral from loaned securities. |
| Material Fund Change [Text Block] | Summary of Fund Changes There were no material fund changes during the period. |
| Summary of Change Legend [Text Block] | There were no material fund changes during the period. |
| C000184551 | |
| Shareholder Report [Line Items] | |
| Fund Name | Lord Abbett Affiliated Fund Inc. |
| Class Name | Class F3 |
| Trading Symbol | LTFOX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Lord Abbett Affiliated Fund Inc. for the period of November 1, 2023 to October 31, 2024, as well as certain changes to the Fund. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at lordabbett.com/FundDocuments |
| Additional Information Phone Number | 888-522-2388 |
| Additional Information Website | lordabbett.com/FundDocuments</span>" id="sjs-B97"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 20px; margin: 0px; overflow: visible; text-align: left;">lordabbett.com/FundDocuments</span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class F3 $45 0.38% |
| Expenses Paid, Amount | $ 45 |
| Expense Ratio, Percent | 0.38% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? For the fiscal year ended October 31, 2024, the Fund returned 34.37%, reflecting performance at the net asset value (NAV) of Class F3 shares, compared to the 30.98% of a securities market index with investment characteristics similar to those of the Fund, the Russell 1000 Value Index. The Fund's broad-based securities market index, the S&P 500 Index, returned 38.02% over the same period. Positive factors for the markets included momentum around the soft-landing narrative, which was supported by signs of a cooling labor market and a slowing economy. This led to the U.S. Federal Reserve (Fed) lowering its policy rate by 50 basis points in September. There were also increased expectations for further rate cuts in 2024, which was influenced by mixed economic data, including softer consumer price index (CPI) reports and fluctuating job market indicators, which sparked recession fears but were mostly balanced by strong consumer spending and retail sales. Top contributors to performance: Top detractors from performance: |
| Performance Past Does Not Indicate Future [Text] | The Fund's past performance is no guarantee of future results. |
| Line Graph [Table Text Block] | Class F3 Russell 1000 Value Index Lipper Equity Income Fund Average S&P 500 Index 4/4/2017 $10,000 $10,000 $10,000 $10,000 4/30/2017 $10,044 $9,987 $10,105 $10,112 5/31/2017 $10,107 $9,977 $10,150 $10,254 6/30/2017 $10,212 $10,140 $10,245 $10,318 7/31/2017 $10,319 $10,275 $10,382 $10,530 8/31/2017 $10,187 $10,155 $10,312 $10,562 9/30/2017 $10,529 $10,456 $10,608 $10,780 10/31/2017 $10,630 $10,532 $10,727 $11,032 11/30/2017 $10,999 $10,854 $11,043 $11,370 12/31/2017 $11,177 $11,013 $11,182 $11,496 1/31/2018 $11,648 $11,438 $11,606 $12,155 2/28/2018 $11,127 $10,892 $11,080 $11,707 3/31/2018 $10,919 $10,701 $10,899 $11,409 4/30/2018 $10,940 $10,736 $10,948 $11,453 5/31/2018 $11,004 $10,800 $11,083 $11,729 6/30/2018 $10,981 $10,826 $11,119 $11,801 7/31/2018 $11,472 $11,255 $11,518 $12,240 8/31/2018 $11,678 $11,421 $11,700 $12,639 9/30/2018 $11,709 $11,444 $11,708 $12,711 10/31/2018 $11,108 $10,851 $11,053 $11,842 11/30/2018 $11,451 $11,175 $11,335 $12,083 12/31/2018 $10,384 $10,102 $10,374 $10,992 1/31/2019 $11,134 $10,888 $11,090 $11,873 2/28/2019 $11,494 $11,236 $11,418 $12,254 3/31/2019 $11,492 $11,308 $11,512 $12,493 4/30/2019 $11,894 $11,709 $11,873 $12,998 5/31/2019 $11,146 $10,956 $11,185 $12,172 6/30/2019 $11,935 $11,743 $11,875 $13,030 7/31/2019 $12,101 $11,840 $11,990 $13,218 8/31/2019 $11,784 $11,492 $11,763 $13,008 9/30/2019 $12,240 $11,902 $12,121 $13,252 10/31/2019 $12,344 $12,068 $12,249 $13,539 11/30/2019 $12,742 $12,441 $12,554 $14,030 12/31/2019 $13,051 $12,783 $12,893 $14,453 1/31/2020 $12,666 $12,508 $12,637 $14,448 2/29/2020 $11,396 $11,297 $11,485 $13,258 3/31/2020 $9,415 $9,366 $9,724 $11,621 4/30/2020 $10,423 $10,419 $10,753 $13,111 5/31/2020 $10,852 $10,776 $11,155 $13,735 6/30/2020 $10,885 $10,705 $11,221 $14,008 7/31/2020 $11,267 $11,128 $11,654 $14,798 8/31/2020 $11,783 $11,588 $12,138 $15,862 9/30/2020 $11,476 $11,304 $11,816 $15,259 10/31/2020 $11,225 $11,155 $11,604 $14,853 11/30/2020 $12,547 $12,656 $13,001 $16,479 12/31/2020 $12,927 $13,141 $13,440 $17,113 1/31/2021 $12,683 $13,020 $13,343 $16,940 2/28/2021 $13,364 $13,807 $13,877 $17,407 3/31/2021 $14,072 $14,620 $14,698 $18,169 4/30/2021 $14,756 $15,204 $15,269 $19,139 5/31/2021 $15,059 $15,559 $15,603 $19,273 6/30/2021 $14,876 $15,381 $15,541 $19,723 7/31/2021 $15,164 $15,504 $15,717 $20,191 8/31/2021 $15,596 $15,812 $16,035 $20,805 9/30/2021 $14,872 $15,261 $15,401 $19,838 10/31/2021 $15,843 $16,036 $16,248 $21,227 11/30/2021 $15,524 $15,471 $15,850 $21,080 12/31/2021 $16,433 $16,447 $16,822 $22,025 1/31/2022 $15,688 $16,064 $16,418 $20,885 2/28/2022 $15,399 $15,878 $16,170 $20,260 3/31/2022 $15,729 $16,326 $16,600 $21,012 4/30/2022 $14,734 $15,405 $15,745 $19,180 5/31/2022 $14,919 $15,704 $16,049 $19,215 6/30/2022 $13,870 $14,332 $14,836 $17,629 7/31/2022 $14,721 $15,283 $15,702 $19,254 8/31/2022 $14,331 $14,827 $15,224 $18,469 9/30/2022 $13,317 $13,527 $13,961 $16,768 10/31/2022 $14,555 $14,914 $15,287 $18,126 11/30/2022 $15,398 $15,846 $16,214 $19,139 12/31/2022 $14,865 $15,207 $15,570 $18,036 1/31/2023 $15,149 $15,995 $16,243 $19,169 2/28/2023 $14,790 $15,431 $15,751 $18,702 3/31/2023 $14,493 $15,360 $15,720 $19,388 4/30/2023 $14,712 $15,592 $15,925 $19,691 5/31/2023 $14,255 $14,990 $15,379 $19,777 6/30/2023 $15,069 $15,986 $16,309 $21,083 7/31/2023 $15,633 $16,548 $16,836 $21,761 8/31/2023 $15,365 $16,102 $16,449 $21,414 9/30/2023 $14,829 $15,480 $15,795 $20,393 10/31/2023 $14,531 $14,934 $15,381 $19,964 11/30/2023 $15,704 $16,061 $16,477 $21,788 12/31/2023 $16,479 $16,950 $17,329 $22,777 1/31/2024 $16,595 $16,968 $17,371 $23,160 2/29/2024 $17,436 $17,594 $17,912 $24,397 3/31/2024 $18,188 $18,474 $18,668 $25,182 4/30/2024 $17,421 $17,684 $17,972 $24,153 5/31/2024 $17,965 $18,245 $18,574 $25,351 6/30/2024 $18,018 $18,073 $18,605 $26,260 7/31/2024 $18,720 $18,997 $19,364 $26,580 8/31/2024 $19,149 $19,507 $19,839 $27,225 9/30/2024 $19,369 $19,778 $20,117 $27,806 10/31/2024 $19,525 $19,560 $19,914 $27,554 |
| Average Annual Return [Table Text Block] | AATR 1 Year 5 Years Since Inception
4/4/17 Class F3 at NAV 34.37% 9.60% 9.23% Russell 1000 Value Index 30.98% 10.14% 9.26% Lipper Equity Income Fund Average 29.48% 10.21% 9.52% S&P 500 Index Footnote Reference 38.02% 15.27% 14.32% |
| Performance Inception Date | Apr. 04, 2017 |
| No Deduction of Taxes [Text Block] | The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. |
| AssetsNet | $ 6,234,840,583 |
| Holdings Count | Holding | 70 |
| Advisory Fees Paid, Amount | $ 18,564,515 |
| InvestmentCompanyPortfolioTurnover | 44% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 Total Net Assets $6,234,840,583 # of Portfolio Holdings 70 Portfolio Turnover Rate 44% Total Advisory Fees Paid $18,564,515 |
| Holdings [Text Block] | Portfolio Holdings Presented by Sector Footnote Reference % Footnote Reference Communication Services 3.12 % Consumer Discretionary 5.74 % Consumer Staples 8.74 % Energy 7.46 % Financials 24.27 % Health Care 10.84 % Industrials 15.91 % Information Technology 9.79 % Materials 5.80 % Utilities 5.34 % Repurchase Agreements 1.66 % Money Market Funds Footnote Reference 1.20 % Time Deposits Footnote Reference 0.13 % Total 100.00% Footnote Description Footnote A sector may comprise several industries Footnote Represents percent of total investments, which excludes derivatives. Footnote Securities were purchased with the cash collateral from loaned securities. |
| Material Fund Change [Text Block] | Summary of Fund Changes There were no material fund changes during the period. |
| Summary of Change Legend [Text Block] | There were no material fund changes during the period. |
| C000018432 | |
| Shareholder Report [Line Items] | |
| Fund Name | Lord Abbett Affiliated Fund Inc. |
| Class Name | Class I |
| Trading Symbol | LAFYX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Lord Abbett Affiliated Fund Inc. for the period of November 1, 2023 to October 31, 2024, as well as certain changes to the Fund. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at lordabbett.com/FundDocuments |
| Additional Information Phone Number | 888-522-2388 |
| Additional Information Website | lordabbett.com/FundDocuments</span>" id="sjs-B124"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 20px; margin: 0px; overflow: visible; text-align: left;">lordabbett.com/FundDocuments</span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class I $52 0.44% |
| Expenses Paid, Amount | $ 52 |
| Expense Ratio, Percent | 0.44% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? For the fiscal year ended October 31, 2024, the Fund returned 34.25%, reflecting performance at the net asset value (NAV) of Class I shares, compared to the 30.98% of a securities market index with investment characteristics similar to those of the Fund, the Russell 1000 Value Index. The Fund's broad-based securities market index, the S&P 500 Index, returned 38.02% over the same period. Positive factors for the markets included momentum around the soft-landing narrative, which was supported by signs of a cooling labor market and a slowing economy. This led to the U.S. Federal Reserve (Fed) lowering its policy rate by 50 basis points in September. There were also increased expectations for further rate cuts in 2024, which was influenced by mixed economic data, including softer consumer price index (CPI) reports and fluctuating job market indicators, which sparked recession fears but were mostly balanced by strong consumer spending and retail sales. Top contributors to performance: Top detractors from performance: |
| Performance Past Does Not Indicate Future [Text] | The Fund's past performance is no guarantee of future results. |
| Line Graph [Table Text Block] | Class I Russell 1000 Value Index Lipper Equity Income Fund Average S&P 500 Index 10/31/2014 $10,000 $10,000 $10,000 $10,000 11/30/2014 $10,285 $10,205 $10,189 $10,269 12/31/2014 $10,313 $10,267 $10,142 $10,243 1/31/2015 $9,990 $9,857 $9,885 $9,936 2/28/2015 $10,509 $10,334 $10,345 $10,507 3/31/2015 $10,362 $10,193 $10,197 $10,340 4/30/2015 $10,438 $10,289 $10,301 $10,440 5/31/2015 $10,521 $10,412 $10,355 $10,574 6/30/2015 $10,241 $10,204 $9,839 $10,369 7/31/2015 $10,331 $10,249 $9,921 $10,586 8/31/2015 $9,684 $9,639 $9,364 $9,948 9/30/2015 $9,475 $9,348 $9,109 $9,702 10/31/2015 $10,151 $10,053 $9,740 $10,520 11/30/2015 $10,108 $10,091 $9,717 $10,551 12/31/2015 $9,905 $9,874 $9,519 $10,385 1/31/2016 $9,429 $9,364 $9,146 $9,869 2/29/2016 $9,499 $9,362 $9,189 $9,856 3/31/2016 $10,160 $10,036 $9,786 $10,525 4/30/2016 $10,273 $10,247 $9,884 $10,566 5/31/2016 $10,421 $10,406 $10,004 $10,755 6/30/2016 $10,493 $10,496 $10,123 $10,783 7/31/2016 $10,848 $10,801 $10,417 $11,181 8/31/2016 $10,883 $10,884 $10,409 $11,196 9/30/2016 $10,887 $10,861 $10,379 $11,199 10/31/2016 $10,773 $10,693 $10,186 $10,994 11/30/2016 $11,430 $11,304 $10,608 $11,401 12/31/2016 $11,660 $11,587 $10,839 $11,627 1/31/2017 $11,683 $11,669 $10,945 $11,847 2/28/2017 $12,221 $12,089 $11,294 $12,318 3/31/2017 $12,143 $11,965 $11,258 $12,332 4/30/2017 $12,196 $11,943 $11,357 $12,459 5/31/2017 $12,273 $11,931 $11,408 $12,634 6/30/2017 $12,400 $12,126 $11,515 $12,713 7/31/2017 $12,523 $12,287 $11,669 $12,974 8/31/2017 $12,369 $12,144 $11,590 $13,014 9/30/2017 $12,784 $12,504 $11,923 $13,283 10/31/2017 $12,900 $12,595 $12,057 $13,593 11/30/2017 $13,348 $12,980 $12,411 $14,009 12/31/2017 $13,563 $13,170 $12,568 $14,165 1/31/2018 $14,128 $13,679 $13,044 $14,976 2/28/2018 $13,504 $13,026 $12,454 $14,424 3/31/2018 $13,249 $12,797 $12,250 $14,058 4/30/2018 $13,275 $12,839 $12,305 $14,112 5/31/2018 $13,353 $12,915 $12,457 $14,451 6/30/2018 $13,323 $12,947 $12,497 $14,540 7/31/2018 $13,912 $13,460 $12,945 $15,081 8/31/2018 $14,171 $13,659 $13,150 $15,573 9/30/2018 $14,198 $13,686 $13,159 $15,662 10/31/2018 $13,467 $12,977 $12,423 $14,591 11/30/2018 $13,876 $13,364 $12,740 $14,888 12/31/2018 $12,577 $12,081 $11,660 $13,544 1/31/2019 $13,490 $13,021 $12,464 $14,629 2/28/2019 $13,927 $13,438 $12,833 $15,099 3/31/2019 $13,924 $13,523 $12,938 $15,393 4/30/2019 $14,412 $14,003 $13,345 $16,016 5/31/2019 $13,503 $13,102 $12,571 $14,998 6/30/2019 $14,461 $14,043 $13,347 $16,055 7/31/2019 $14,653 $14,159 $13,476 $16,286 8/31/2019 $14,268 $13,743 $13,221 $16,028 9/30/2019 $14,822 $14,233 $13,624 $16,328 10/31/2019 $14,948 $14,432 $13,767 $16,681 11/30/2019 $15,431 $14,878 $14,110 $17,287 12/31/2019 $15,806 $15,288 $14,491 $17,809 1/31/2020 $15,328 $14,959 $14,204 $17,802 2/29/2020 $13,794 $13,510 $12,909 $16,336 3/31/2020 $11,395 $11,201 $10,929 $14,319 4/30/2020 $12,619 $12,460 $12,086 $16,154 5/31/2020 $13,131 $12,888 $12,538 $16,923 6/30/2020 $13,170 $12,802 $12,612 $17,260 7/31/2020 $13,635 $13,308 $13,098 $18,233 8/31/2020 $14,251 $13,858 $13,643 $19,544 9/30/2020 $13,877 $13,518 $13,281 $18,801 10/31/2020 $13,572 $13,340 $13,042 $18,301 11/30/2020 $15,178 $15,135 $14,613 $20,305 12/31/2020 $15,638 $15,715 $15,106 $21,085 1/31/2021 $15,342 $15,571 $14,997 $20,872 2/28/2021 $16,159 $16,512 $15,597 $21,448 3/31/2021 $17,018 $17,484 $16,520 $22,387 4/30/2021 $17,839 $18,183 $17,162 $23,582 5/31/2021 $18,218 $18,607 $17,538 $23,747 6/30/2021 $17,983 $18,394 $17,468 $24,301 7/31/2021 $18,333 $18,541 $17,665 $24,878 8/31/2021 $18,858 $18,909 $18,022 $25,635 9/30/2021 $17,976 $18,251 $17,310 $24,443 10/31/2021 $19,155 $19,178 $18,262 $26,155 11/30/2021 $18,768 $18,502 $17,814 $25,974 12/31/2021 $19,869 $19,669 $18,907 $27,138 1/31/2022 $18,953 $19,211 $18,453 $25,734 2/28/2022 $18,613 $18,988 $18,175 $24,963 3/31/2022 $19,012 $19,524 $18,657 $25,890 4/30/2022 $17,804 $18,423 $17,697 $23,632 5/31/2022 $18,028 $18,781 $18,038 $23,676 6/30/2022 $16,763 $17,140 $16,675 $21,721 7/31/2022 $17,786 $18,276 $17,648 $23,724 8/31/2022 $17,312 $17,732 $17,112 $22,757 9/30/2022 $16,089 $16,177 $15,691 $20,661 10/31/2022 $17,593 $17,836 $17,182 $22,334 11/30/2022 $18,606 $18,950 $18,224 $23,582 12/31/2022 $17,957 $18,186 $17,500 $22,223 1/31/2023 $18,302 $19,129 $18,256 $23,619 2/28/2023 $17,865 $18,454 $17,703 $23,043 3/31/2023 $17,491 $18,369 $17,668 $23,889 4/30/2023 $17,769 $18,646 $17,899 $24,262 5/31/2023 $17,214 $17,927 $17,285 $24,367 6/30/2023 $18,202 $19,118 $18,331 $25,977 7/31/2023 $18,876 $19,790 $18,923 $26,812 8/31/2023 $18,550 $19,256 $18,488 $26,385 9/30/2023 $17,910 $18,513 $17,752 $25,127 10/31/2023 $17,548 $17,860 $17,287 $24,599 11/30/2023 $18,961 $19,207 $18,519 $26,845 12/31/2023 $19,903 $20,271 $19,477 $28,065 1/31/2024 $20,032 $20,292 $19,524 $28,536 2/29/2024 $21,053 $21,041 $20,132 $30,060 3/31/2024 $21,956 $22,092 $20,982 $31,027 4/30/2024 $21,024 $21,149 $20,200 $29,760 5/31/2024 $21,673 $21,819 $20,876 $31,236 6/30/2024 $21,749 $21,614 $20,912 $32,356 7/31/2024 $22,590 $22,719 $21,765 $32,750 8/31/2024 $23,111 $23,328 $22,299 $33,545 9/30/2024 $23,367 $23,652 $22,611 $34,261 10/31/2024 $23,557 $23,392 $22,383 $33,950 |
| Average Annual Return [Table Text Block] | AATR 1 Year 5 Years 10 Years Class I at NAV 34.25% 9.52% 8.95% Russell 1000 Value Index 30.98% 10.14% 8.87% Lipper Equity Income Fund Average 29.48% 10.21% 8.39% S&P 500 Index Footnote Reference 38.02% 15.27% 13.00% |
| No Deduction of Taxes [Text Block] | The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. |
| AssetsNet | $ 6,234,840,583 |
| Holdings Count | Holding | 70 |
| Advisory Fees Paid, Amount | $ 18,564,515 |
| InvestmentCompanyPortfolioTurnover | 44% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 Total Net Assets $6,234,840,583 # of Portfolio Holdings 70 Portfolio Turnover Rate 44% Total Advisory Fees Paid $18,564,515 |
| Holdings [Text Block] | Portfolio Holdings Presented by Sector Footnote Reference % Footnote Reference Communication Services 3.12 % Consumer Discretionary 5.74 % Consumer Staples 8.74 % Energy 7.46 % Financials 24.27 % Health Care 10.84 % Industrials 15.91 % Information Technology 9.79 % Materials 5.80 % Utilities 5.34 % Repurchase Agreements 1.66 % Money Market Funds Footnote Reference 1.20 % Time Deposits Footnote Reference 0.13 % Total 100.00% Footnote Description Footnote A sector may comprise several industries Footnote Represents percent of total investments, which excludes derivatives. Footnote Securities were purchased with the cash collateral from loaned securities. |
| Material Fund Change [Text Block] | Summary of Fund Changes There were no material fund changes during the period. |
| Summary of Change Legend [Text Block] | There were no material fund changes during the period. |
| C000018431 | |
| Shareholder Report [Line Items] | |
| Fund Name | Lord Abbett Affiliated Fund Inc. |
| Class Name | Class P |
| Trading Symbol | LAFPX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Lord Abbett Affiliated Fund Inc. for the period of November 1, 2023 to October 31, 2024, as well as certain changes to the Fund. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at lordabbett.com/FundDocuments |
| Additional Information Phone Number | 888-522-2388 |
| Additional Information Website | lordabbett.com/FundDocuments</span>" id="sjs-B150"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 20px; margin: 0px; overflow: visible; text-align: left;">lordabbett.com/FundDocuments</span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class P $104 0.89% |
| Expenses Paid, Amount | $ 104 |
| Expense Ratio, Percent | 0.89% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? For the fiscal year ended October 31, 2024, the Fund returned 33.74%, reflecting performance at the net asset value (NAV) of Class P shares, compared to the 30.98% of a securities market index with investment characteristics similar to those of the Fund, the Russell 1000 Value Index. The Fund's broad-based securities market index, the S&P 500 Index, returned 38.02% over the same period. Positive factors for the markets included momentum around the soft-landing narrative, which was supported by signs of a cooling labor market and a slowing economy. This led to the U.S. Federal Reserve (Fed) lowering its policy rate by 50 basis points in September. There were also increased expectations for further rate cuts in 2024, which was influenced by mixed economic data, including softer consumer price index (CPI) reports and fluctuating job market indicators, which sparked recession fears but were mostly balanced by strong consumer spending and retail sales. Top contributors to performance: Top detractors from performance: |
| Performance Past Does Not Indicate Future [Text] | The Fund's past performance is no guarantee of future results. |
| Line Graph [Table Text Block] | Class P Russell 1000 Value Index Lipper Equity Income Fund Average S&P 500 Index 10/31/2014 $10,000 $10,000 $10,000 $10,000 11/30/2014 $10,286 $10,205 $10,189 $10,269 12/31/2014 $10,314 $10,267 $10,142 $10,243 1/31/2015 $9,984 $9,857 $9,885 $9,936 2/28/2015 $10,504 $10,334 $10,345 $10,507 3/31/2015 $10,356 $10,193 $10,197 $10,340 4/30/2015 $10,433 $10,289 $10,301 $10,440 5/31/2015 $10,509 $10,412 $10,355 $10,574 6/30/2015 $10,229 $10,204 $9,839 $10,369 7/31/2015 $10,312 $10,249 $9,921 $10,586 8/31/2015 $9,670 $9,639 $9,364 $9,948 9/30/2015 $9,453 $9,348 $9,109 $9,702 10/31/2015 $10,131 $10,053 $9,740 $10,520 11/30/2015 $10,081 $10,091 $9,717 $10,551 12/31/2015 $9,885 $9,874 $9,519 $10,385 1/31/2016 $9,401 $9,364 $9,146 $9,869 2/29/2016 $9,471 $9,362 $9,189 $9,856 3/31/2016 $10,128 $10,036 $9,786 $10,525 4/30/2016 $10,233 $10,247 $9,884 $10,566 5/31/2016 $10,382 $10,406 $10,004 $10,755 6/30/2016 $10,447 $10,496 $10,123 $10,783 7/31/2016 $10,802 $10,801 $10,417 $11,181 8/31/2016 $10,838 $10,884 $10,409 $11,196 9/30/2016 $10,842 $10,861 $10,379 $11,199 10/31/2016 $10,721 $10,693 $10,186 $10,994 11/30/2016 $11,378 $11,304 $10,608 $11,401 12/31/2016 $11,601 $11,587 $10,839 $11,627 1/31/2017 $11,624 $11,669 $10,945 $11,847 2/28/2017 $12,155 $12,089 $11,294 $12,318 3/31/2017 $12,077 $11,965 $11,258 $12,332 4/30/2017 $12,122 $11,943 $11,357 $12,459 5/31/2017 $12,198 $11,931 $11,408 $12,634 6/30/2017 $12,318 $12,126 $11,515 $12,713 7/31/2017 $12,441 $12,287 $11,669 $12,974 8/31/2017 $12,287 $12,144 $11,590 $13,014 9/30/2017 $12,694 $12,504 $11,923 $13,283 10/31/2017 $12,809 $12,595 $12,057 $13,593 11/30/2017 $13,258 $12,980 $12,411 $14,009 12/31/2017 $13,465 $13,170 $12,568 $14,165 1/31/2018 $14,019 $13,679 $13,044 $14,976 2/28/2018 $13,396 $13,026 $12,454 $14,424 3/31/2018 $13,142 $12,797 $12,250 $14,058 4/30/2018 $13,160 $12,839 $12,305 $14,112 5/31/2018 $13,237 $12,915 $12,457 $14,451 6/30/2018 $13,206 $12,947 $12,497 $14,540 7/31/2018 $13,784 $13,460 $12,945 $15,081 8/31/2018 $14,034 $13,659 $13,150 $15,573 9/30/2018 $14,063 $13,686 $13,159 $15,662 10/31/2018 $13,326 $12,977 $12,423 $14,591 11/30/2018 $13,733 $13,364 $12,740 $14,888 12/31/2018 $12,442 $12,081 $11,660 $13,544 1/31/2019 $13,341 $13,021 $12,464 $14,629 2/28/2019 $13,767 $13,438 $12,833 $15,099 3/31/2019 $13,748 $13,523 $12,938 $15,393 4/30/2019 $14,224 $14,003 $13,345 $16,016 5/31/2019 $13,330 $13,102 $12,571 $14,998 6/30/2019 $14,266 $14,043 $13,347 $16,055 7/31/2019 $14,457 $14,159 $13,476 $16,286 8/31/2019 $14,065 $13,743 $13,221 $16,028 9/30/2019 $14,618 $14,233 $13,624 $16,328 10/31/2019 $14,723 $14,432 $13,767 $16,681 11/30/2019 $15,203 $14,878 $14,110 $17,287 12/31/2019 $15,558 $15,288 $14,491 $17,809 1/31/2020 $15,094 $14,959 $14,204 $17,802 2/29/2020 $13,574 $13,510 $12,909 $16,336 3/31/2020 $11,208 $11,201 $10,929 $14,319 4/30/2020 $12,400 $12,460 $12,086 $16,154 5/31/2020 $12,907 $12,888 $12,538 $16,923 6/30/2020 $12,940 $12,802 $12,612 $17,260 7/31/2020 $13,389 $13,308 $13,098 $18,233 8/31/2020 $13,999 $13,858 $13,643 $19,544 9/30/2020 $13,623 $13,518 $13,281 $18,801 10/31/2020 $13,322 $13,340 $13,042 $18,301 11/30/2020 $14,888 $15,135 $14,613 $20,305 12/31/2020 $15,325 $15,715 $15,106 $21,085 1/31/2021 $15,033 $15,571 $14,997 $20,872 2/28/2021 $15,829 $16,512 $15,597 $21,448 3/31/2021 $16,658 $17,484 $16,520 $22,387 4/30/2021 $17,467 $18,183 $17,162 $23,582 5/31/2021 $17,820 $18,607 $17,538 $23,747 6/30/2021 $17,591 $18,394 $17,468 $24,301 7/31/2021 $17,925 $18,541 $17,665 $24,878 8/31/2021 $18,432 $18,909 $18,022 $25,635 9/30/2021 $17,563 $18,251 $17,310 $24,443 10/31/2021 $18,702 $19,178 $18,262 $26,155 11/30/2021 $18,321 $18,502 $17,814 $25,974 12/31/2021 $19,384 $19,669 $18,907 $27,138 1/31/2022 $18,495 $19,211 $18,453 $25,734 2/28/2022 $18,150 $18,988 $18,175 $24,963 3/31/2022 $18,532 $19,524 $18,657 $25,890 4/30/2022 $17,346 $18,423 $17,697 $23,632 5/31/2022 $17,556 $18,781 $18,038 $23,676 6/30/2022 $16,326 $17,140 $16,675 $21,721 7/31/2022 $17,317 $18,276 $17,648 $23,724 8/31/2022 $16,842 $17,732 $17,112 $22,757 9/30/2022 $15,645 $16,177 $15,691 $20,661 10/31/2022 $17,096 $17,836 $17,182 $22,334 11/30/2022 $18,078 $18,950 $18,224 $23,582 12/31/2022 $17,445 $18,186 $17,500 $22,223 1/31/2023 $17,771 $19,129 $18,256 $23,619 2/28/2023 $17,332 $18,454 $17,703 $23,043 3/31/2023 $16,980 $18,369 $17,668 $23,889 4/30/2023 $17,240 $18,646 $17,899 $24,262 5/31/2023 $16,686 $17,927 $17,285 $24,367 6/30/2023 $17,643 $19,118 $18,331 $25,977 7/31/2023 $18,279 $19,790 $18,923 $26,812 8/31/2023 $17,961 $19,256 $18,488 $26,385 9/30/2023 $17,338 $18,513 $17,752 $25,127 10/31/2023 $16,973 $17,860 $17,287 $24,599 11/30/2023 $18,340 $19,207 $18,519 $26,845 12/31/2023 $19,238 $20,271 $19,477 $28,065 1/31/2024 $19,364 $20,292 $19,524 $28,536 2/29/2024 $20,336 $21,041 $20,132 $30,060 3/31/2024 $21,203 $22,092 $20,982 $31,027 4/30/2024 $20,297 $21,149 $20,200 $29,760 5/31/2024 $20,928 $21,819 $20,876 $31,236 6/30/2024 $20,978 $21,614 $20,912 $32,356 7/31/2024 $21,795 $22,719 $21,765 $32,750 8/31/2024 $22,279 $23,328 $22,299 $33,545 9/30/2024 $22,527 $23,652 $22,611 $34,261 10/31/2024 $22,700 $23,392 $22,383 $33,950 |
| Average Annual Return [Table Text Block] | AATR 1 Year 5 Years 10 Years Class P at NAV 33.74% 9.04% 8.54% Russell 1000 Value Index 30.98% 10.14% 8.87% Lipper Equity Income Fund Average 29.48% 10.21% 8.39% S&P 500 Index Footnote Reference 38.02% 15.27% 13.00% |
| No Deduction of Taxes [Text Block] | The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. |
| AssetsNet | $ 6,234,840,583 |
| Holdings Count | Holding | 70 |
| Advisory Fees Paid, Amount | $ 18,564,515 |
| InvestmentCompanyPortfolioTurnover | 44% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 Total Net Assets $6,234,840,583 # of Portfolio Holdings 70 Portfolio Turnover Rate 44% Total Advisory Fees Paid $18,564,515 |
| Holdings [Text Block] | Portfolio Holdings Presented by Sector Footnote Reference % Footnote Reference Communication Services 3.12 % Consumer Discretionary 5.74 % Consumer Staples 8.74 % Energy 7.46 % Financials 24.27 % Health Care 10.84 % Industrials 15.91 % Information Technology 9.79 % Materials 5.80 % Utilities 5.34 % Repurchase Agreements 1.66 % Money Market Funds Footnote Reference 1.20 % Time Deposits Footnote Reference 0.13 % Total 100.00% Footnote Description Footnote A sector may comprise several industries Footnote Represents percent of total investments, which excludes derivatives. Footnote Securities were purchased with the cash collateral from loaned securities. |
| Material Fund Change [Text Block] | Summary of Fund Changes There were no material fund changes during the period. |
| Summary of Change Legend [Text Block] | There were no material fund changes during the period. |
| C000054700 | |
| Shareholder Report [Line Items] | |
| Fund Name | Lord Abbett Affiliated Fund Inc. |
| Class Name | Class R2 |
| Trading Symbol | LAFQX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Lord Abbett Affiliated Fund Inc. for the period of November 1, 2023 to October 31, 2024, as well as certain changes to the Fund. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at lordabbett.com/FundDocuments |
| Additional Information Phone Number | 888-522-2388 |
| Additional Information Website | lordabbett.com/FundDocuments</span>" id="sjs-B176"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 20px; margin: 0px; overflow: visible; text-align: left;">lordabbett.com/FundDocuments</span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R2 $121 1.04% |
| Expenses Paid, Amount | $ 121 |
| Expense Ratio, Percent | 1.04% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? For the fiscal year ended October 31, 2024, the Fund returned 33.54%, reflecting performance at the net asset value (NAV) of Class R2 shares, compared to the 30.98% of a securities market index with investment characteristics similar to those of the Fund, the Russell 1000 Value Index. The Fund's broad-based securities market index, the S&P 500 Index, returned 38.02% over the same period. Positive factors for the markets included momentum around the soft-landing narrative, which was supported by signs of a cooling labor market and a slowing economy. This led to the U.S. Federal Reserve (Fed) lowering its policy rate by 50 basis points in September. There were also increased expectations for further rate cuts in 2024, which was influenced by mixed economic data, including softer consumer price index (CPI) reports and fluctuating job market indicators, which sparked recession fears but were mostly balanced by strong consumer spending and retail sales. Top contributors to performance: Top detractors from performance: |
| Performance Past Does Not Indicate Future [Text] | The Fund's past performance is no guarantee of future results. |
| Line Graph [Table Text Block] | Class R2 Russell 1000 Value Index Lipper Equity Income Fund Average S&P 500 Index 10/31/2014 $10,000 $10,000 $10,000 $10,000 11/30/2014 $10,287 $10,205 $10,189 $10,269 12/31/2014 $10,312 $10,267 $10,142 $10,243 1/31/2015 $9,975 $9,857 $9,885 $9,936 2/28/2015 $10,496 $10,334 $10,345 $10,507 3/31/2015 $10,339 $10,193 $10,197 $10,340 4/30/2015 $10,416 $10,289 $10,301 $10,440 5/31/2015 $10,486 $10,412 $10,355 $10,574 6/30/2015 $10,203 $10,204 $9,839 $10,369 7/31/2015 $10,286 $10,249 $9,921 $10,586 8/31/2015 $9,639 $9,639 $9,364 $9,948 9/30/2015 $9,424 $9,348 $9,109 $9,702 10/31/2015 $10,099 $10,053 $9,740 $10,520 11/30/2015 $10,043 $10,091 $9,717 $10,551 12/31/2015 $9,847 $9,874 $9,519 $10,385 1/31/2016 $9,366 $9,364 $9,146 $9,869 2/29/2016 $9,429 $9,362 $9,189 $9,856 3/31/2016 $10,081 $10,036 $9,786 $10,525 4/30/2016 $10,186 $10,247 $9,884 $10,566 5/31/2016 $10,326 $10,406 $10,004 $10,755 6/30/2016 $10,389 $10,496 $10,123 $10,783 7/31/2016 $10,742 $10,801 $10,417 $11,181 8/31/2016 $10,770 $10,884 $10,409 $11,196 9/30/2016 $10,766 $10,861 $10,379 $11,199 10/31/2016 $10,645 $10,693 $10,186 $10,994 11/30/2016 $11,297 $11,304 $10,608 $11,401 12/31/2016 $11,515 $11,587 $10,839 $11,627 1/31/2017 $11,530 $11,669 $10,945 $11,847 2/28/2017 $12,055 $12,089 $11,294 $12,318 3/31/2017 $11,977 $11,965 $11,258 $12,332 4/30/2017 $12,022 $11,943 $11,357 $12,459 5/31/2017 $12,090 $11,931 $11,408 $12,634 6/30/2017 $12,206 $12,126 $11,515 $12,713 7/31/2017 $12,327 $12,287 $11,669 $12,974 8/31/2017 $12,168 $12,144 $11,590 $13,014 9/30/2017 $12,564 $12,504 $11,923 $13,283 10/31/2017 $12,678 $12,595 $12,057 $13,593 11/30/2017 $13,113 $12,980 $12,411 $14,009 12/31/2017 $13,315 $13,170 $12,568 $14,165 1/31/2018 $13,862 $13,679 $13,044 $14,976 2/28/2018 $13,247 $13,026 $12,454 $14,424 3/31/2018 $12,991 $12,797 $12,250 $14,058 4/30/2018 $13,008 $12,839 $12,305 $14,112 5/31/2018 $13,075 $12,915 $12,457 $14,451 6/30/2018 $13,044 $12,947 $12,497 $14,540 7/31/2018 $13,613 $13,460 $12,945 $15,081 8/31/2018 $13,851 $13,659 $13,150 $15,573 9/30/2018 $13,874 $13,686 $13,159 $15,662 10/31/2018 $13,166 $12,977 $12,423 $14,591 11/30/2018 $13,558 $13,364 $12,740 $14,888 12/31/2018 $12,283 $12,081 $11,660 $13,544 1/31/2019 $13,168 $13,021 $12,464 $14,629 2/28/2019 $13,587 $13,438 $12,833 $15,099 3/31/2019 $13,574 $13,523 $12,938 $15,393 4/30/2019 $14,042 $14,003 $13,345 $16,016 5/31/2019 $13,153 $13,102 $12,571 $14,998 6/30/2019 $14,079 $14,043 $13,347 $16,055 7/31/2019 $14,267 $14,159 $13,476 $16,286 8/31/2019 $13,881 $13,743 $13,221 $16,028 9/30/2019 $14,417 $14,233 $13,624 $16,328 10/31/2019 $14,521 $14,432 $13,767 $16,681 11/30/2019 $14,992 $14,878 $14,110 $17,287 12/31/2019 $15,346 $15,288 $14,491 $17,809 1/31/2020 $14,880 $14,959 $14,204 $17,802 2/29/2020 $13,387 $13,510 $12,909 $16,336 3/31/2020 $11,042 $11,201 $10,929 $14,319 4/30/2020 $12,223 $12,460 $12,086 $16,154 5/31/2020 $12,720 $12,888 $12,538 $16,923 6/30/2020 $12,755 $12,802 $12,612 $17,260 7/31/2020 $13,187 $13,308 $13,098 $18,233 8/31/2020 $13,785 $13,858 $13,643 $19,544 9/30/2020 $13,421 $13,518 $13,281 $18,801 10/31/2020 $13,116 $13,340 $13,042 $18,301 11/30/2020 $14,652 $15,135 $14,613 $20,305 12/31/2020 $15,087 $15,715 $15,106 $21,085 1/31/2021 $14,800 $15,571 $14,997 $20,872 2/28/2021 $15,580 $16,512 $15,597 $21,448 3/31/2021 $16,397 $17,484 $16,520 $22,387 4/30/2021 $17,179 $18,183 $17,162 $23,582 5/31/2021 $17,536 $18,607 $17,538 $23,747 6/30/2021 $17,303 $18,394 $17,468 $24,301 7/31/2021 $17,631 $18,541 $17,665 $24,878 8/31/2021 $18,127 $18,909 $18,022 $25,635 9/30/2021 $17,271 $18,251 $17,310 $24,443 10/31/2021 $18,386 $19,178 $18,262 $26,155 11/30/2021 $18,013 $18,502 $17,814 $25,974 12/31/2021 $19,057 $19,669 $18,907 $27,138 1/31/2022 $18,176 $19,211 $18,453 $25,734 2/28/2022 $17,838 $18,988 $18,175 $24,963 3/31/2022 $18,204 $19,524 $18,657 $25,890 4/30/2022 $17,043 $18,423 $17,697 $23,632 5/31/2022 $17,249 $18,781 $18,038 $23,676 6/30/2022 $16,029 $17,140 $16,675 $21,721 7/31/2022 $16,999 $18,276 $17,648 $23,724 8/31/2022 $16,545 $17,732 $17,112 $22,757 9/30/2022 $15,357 $16,177 $15,691 $20,661 10/31/2022 $16,787 $17,836 $17,182 $22,334 11/30/2022 $17,746 $18,950 $18,224 $23,582 12/31/2022 $17,122 $18,186 $17,500 $22,223 1/31/2023 $17,441 $19,129 $18,256 $23,619 2/28/2023 $17,012 $18,454 $17,703 $23,043 3/31/2023 $16,651 $18,369 $17,668 $23,889 4/30/2023 $16,905 $18,646 $17,899 $24,262 5/31/2023 $16,364 $17,927 $17,285 $24,367 6/30/2023 $17,303 $19,118 $18,331 $25,977 7/31/2023 $17,924 $19,790 $18,923 $26,812 8/31/2023 $17,614 $19,256 $18,488 $26,385 9/30/2023 $16,997 $18,513 $17,752 $25,127 10/31/2023 $16,641 $17,860 $17,287 $24,599 11/30/2023 $17,975 $19,207 $18,519 $26,845 12/31/2023 $18,856 $20,271 $19,477 $28,065 1/31/2024 $18,979 $20,292 $19,524 $28,536 2/29/2024 $19,927 $21,041 $20,132 $30,060 3/31/2024 $20,778 $22,092 $20,982 $31,027 4/30/2024 $19,883 $21,149 $20,200 $29,760 5/31/2024 $20,498 $21,819 $20,876 $31,236 6/30/2024 $20,551 $21,614 $20,912 $32,356 7/31/2024 $21,337 $22,719 $21,765 $32,750 8/31/2024 $21,819 $23,328 $22,299 $33,545 9/30/2024 $22,053 $23,652 $22,611 $34,261 10/31/2024 $22,222 $23,392 $22,383 $33,950 |
| Average Annual Return [Table Text Block] | AATR 1 Year 5 Years 10 Years Class R2 at NAV 33.54% 8.88% 8.31% Russell 1000 Value Index 30.98% 10.14% 8.87% Lipper Equity Income Fund Average 29.48% 10.21% 8.39% S&P 500 Index Footnote Reference 38.02% 15.27% 13.00% |
| No Deduction of Taxes [Text Block] | The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. |
| AssetsNet | $ 6,234,840,583 |
| Holdings Count | Holding | 70 |
| Advisory Fees Paid, Amount | $ 18,564,515 |
| InvestmentCompanyPortfolioTurnover | 44% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 Total Net Assets $6,234,840,583 # of Portfolio Holdings 70 Portfolio Turnover Rate 44% Total Advisory Fees Paid $18,564,515 |
| Holdings [Text Block] | Portfolio Holdings Presented by Sector Footnote Reference % Footnote Reference Communication Services 3.12 % Consumer Discretionary 5.74 % Consumer Staples 8.74 % Energy 7.46 % Financials 24.27 % Health Care 10.84 % Industrials 15.91 % Information Technology 9.79 % Materials 5.80 % Utilities 5.34 % Repurchase Agreements 1.66 % Money Market Funds Footnote Reference 1.20 % Time Deposits Footnote Reference 0.13 % Total 100.00% Footnote Description Footnote A sector may comprise several industries Footnote Represents percent of total investments, which excludes derivatives. Footnote Securities were purchased with the cash collateral from loaned securities. |
| Material Fund Change [Text Block] | Summary of Fund Changes There were no material fund changes during the period. |
| Summary of Change Legend [Text Block] | There were no material fund changes during the period. |
| C000054701 | |
| Shareholder Report [Line Items] | |
| Fund Name | Lord Abbett Affiliated Fund Inc. |
| Class Name | Class R3 |
| Trading Symbol | LAFRX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Lord Abbett Affiliated Fund Inc. for the period of November 1, 2023 to October 31, 2024, as well as certain changes to the Fund. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at lordabbett.com/FundDocuments |
| Additional Information Phone Number | 888-522-2388 |
| Additional Information Website | lordabbett.com/FundDocuments</span>" id="sjs-B202"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 20px; margin: 0px; overflow: visible; text-align: left;">lordabbett.com/FundDocuments</span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R3 $110 0.94% |
| Expenses Paid, Amount | $ 110 |
| Expense Ratio, Percent | 0.94% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? For the fiscal year ended October 31, 2024, the Fund returned 33.58%, reflecting performance at the net asset value (NAV) of Class R3 shares, compared to the 30.98% of a securities market index with investment characteristics similar to those of the Fund, the Russell 1000 Value Index. The Fund's broad-based securities market index, the S&P 500 Index, returned 38.02% over the same period. Positive factors for the markets included momentum around the soft-landing narrative, which was supported by signs of a cooling labor market and a slowing economy. This led to the U.S. Federal Reserve (Fed) lowering its policy rate by 50 basis points in September. There were also increased expectations for further rate cuts in 2024, which was influenced by mixed economic data, including softer consumer price index (CPI) reports and fluctuating job market indicators, which sparked recession fears but were mostly balanced by strong consumer spending and retail sales. Top contributors to performance: Top detractors from performance: |
| Performance Past Does Not Indicate Future [Text] | The Fund's past performance is no guarantee of future results. |
| Line Graph [Table Text Block] | Class R3 Russell 1000 Value Index Lipper Equity Income Fund Average S&P 500 Index 10/31/2014 $10,000 $10,000 $10,000 $10,000 11/30/2014 $10,287 $10,205 $10,189 $10,269 12/31/2014 $10,308 $10,267 $10,142 $10,243 1/31/2015 $9,978 $9,857 $9,885 $9,936 2/28/2015 $10,498 $10,334 $10,345 $10,507 3/31/2015 $10,345 $10,193 $10,197 $10,340 4/30/2015 $10,422 $10,289 $10,301 $10,440 5/31/2015 $10,492 $10,412 $10,355 $10,574 6/30/2015 $10,212 $10,204 $9,839 $10,369 7/31/2015 $10,295 $10,249 $9,921 $10,586 8/31/2015 $9,648 $9,639 $9,364 $9,948 9/30/2015 $9,432 $9,348 $9,109 $9,702 10/31/2015 $10,109 $10,053 $9,740 $10,520 11/30/2015 $10,060 $10,091 $9,717 $10,551 12/31/2015 $9,858 $9,874 $9,519 $10,385 1/31/2016 $9,375 $9,364 $9,146 $9,869 2/29/2016 $9,445 $9,362 $9,189 $9,856 3/31/2016 $10,094 $10,036 $9,786 $10,525 4/30/2016 $10,200 $10,247 $9,884 $10,566 5/31/2016 $10,340 $10,406 $10,004 $10,755 6/30/2016 $10,406 $10,496 $10,123 $10,783 7/31/2016 $10,760 $10,801 $10,417 $11,181 8/31/2016 $10,795 $10,884 $10,409 $11,196 9/30/2016 $10,793 $10,861 $10,379 $11,199 10/31/2016 $10,672 $10,693 $10,186 $10,994 11/30/2016 $11,319 $11,304 $10,608 $11,401 12/31/2016 $11,541 $11,587 $10,839 $11,627 1/31/2017 $11,564 $11,669 $10,945 $11,847 2/28/2017 $12,092 $12,089 $11,294 $12,318 3/31/2017 $12,007 $11,965 $11,258 $12,332 4/30/2017 $12,053 $11,943 $11,357 $12,459 5/31/2017 $12,121 $11,931 $11,408 $12,634 6/30/2017 $12,240 $12,126 $11,515 $12,713 7/31/2017 $12,362 $12,287 $11,669 $12,974 8/31/2017 $12,202 $12,144 $11,590 $13,014 9/30/2017 $12,607 $12,504 $11,923 $13,283 10/31/2017 $12,721 $12,595 $12,057 $13,593 11/30/2017 $13,158 $12,980 $12,411 $14,009 12/31/2017 $13,364 $13,170 $12,568 $14,165 1/31/2018 $13,914 $13,679 $13,044 $14,976 2/28/2018 $13,297 $13,026 $12,454 $14,424 3/31/2018 $13,036 $12,797 $12,250 $14,058 4/30/2018 $13,053 $12,839 $12,305 $14,112 5/31/2018 $13,130 $12,915 $12,457 $14,451 6/30/2018 $13,093 $12,947 $12,497 $14,540 7/31/2018 $13,665 $13,460 $12,945 $15,081 8/31/2018 $13,913 $13,659 $13,150 $15,573 9/30/2018 $13,940 $13,686 $13,159 $15,662 10/31/2018 $13,219 $12,977 $12,423 $14,591 11/30/2018 $13,622 $13,364 $12,740 $14,888 12/31/2018 $12,342 $12,081 $11,660 $13,544 1/31/2019 $13,232 $13,021 $12,464 $14,629 2/28/2019 $13,654 $13,438 $12,833 $15,099 3/31/2019 $13,643 $13,523 $12,938 $15,393 4/30/2019 $14,115 $14,003 $13,345 $16,016 5/31/2019 $13,219 $13,102 $12,571 $14,998 6/30/2019 $14,154 $14,043 $13,347 $16,055 7/31/2019 $14,344 $14,159 $13,476 $16,286 8/31/2019 $13,955 $13,743 $13,221 $16,028 9/30/2019 $14,491 $14,233 $13,624 $16,328 10/31/2019 $14,605 $14,432 $13,767 $16,681 11/30/2019 $15,080 $14,878 $14,110 $17,287 12/31/2019 $15,430 $15,288 $14,491 $17,809 1/31/2020 $14,961 $14,959 $14,204 $17,802 2/29/2020 $13,466 $13,510 $12,909 $16,336 3/31/2020 $11,113 $11,201 $10,929 $14,319 4/30/2020 $12,303 $12,460 $12,086 $16,154 5/31/2020 $12,794 $12,888 $12,538 $16,923 6/30/2020 $12,835 $12,802 $12,612 $17,260 7/31/2020 $13,270 $13,308 $13,098 $18,233 8/31/2020 $13,874 $13,858 $13,643 $19,544 9/30/2020 $13,509 $13,518 $13,281 $18,801 10/31/2020 $13,201 $13,340 $13,042 $18,301 11/30/2020 $14,751 $15,135 $14,613 $20,305 12/31/2020 $15,192 $15,715 $15,106 $21,085 1/31/2021 $14,903 $15,571 $14,997 $20,872 2/28/2021 $15,691 $16,512 $15,597 $21,448 3/31/2021 $16,509 $17,484 $16,520 $22,387 4/30/2021 $17,309 $18,183 $17,162 $23,582 5/31/2021 $17,658 $18,607 $17,538 $23,747 6/30/2021 $17,428 $18,394 $17,468 $24,301 7/31/2021 $17,758 $18,541 $17,665 $24,878 8/31/2021 $18,259 $18,909 $18,022 $25,635 9/30/2021 $17,409 $18,251 $17,310 $24,443 10/31/2021 $18,535 $19,178 $18,262 $26,155 11/30/2021 $18,148 $18,502 $17,814 $25,974 12/31/2021 $19,207 $19,669 $18,907 $27,138 1/31/2022 $18,318 $19,211 $18,453 $25,734 2/28/2022 $17,976 $18,988 $18,175 $24,963 3/31/2022 $18,351 $19,524 $18,657 $25,890 4/30/2022 $17,179 $18,423 $17,697 $23,632 5/31/2022 $17,386 $18,781 $18,038 $23,676 6/30/2022 $16,168 $17,140 $16,675 $21,721 7/31/2022 $17,148 $18,276 $17,648 $23,724 8/31/2022 $16,679 $17,732 $17,112 $22,757 9/30/2022 $15,492 $16,177 $15,691 $20,661 10/31/2022 $16,926 $17,836 $17,182 $22,334 11/30/2022 $17,895 $18,950 $18,224 $23,582 12/31/2022 $17,268 $18,186 $17,500 $22,223 1/31/2023 $17,591 $19,129 $18,256 $23,619 2/28/2023 $17,168 $18,454 $17,703 $23,043 3/31/2023 $16,808 $18,369 $17,668 $23,889 4/30/2023 $17,065 $18,646 $17,899 $24,262 5/31/2023 $16,517 $17,927 $17,285 $24,367 6/30/2023 $17,459 $19,118 $18,331 $25,977 7/31/2023 $18,098 $19,790 $18,923 $26,812 8/31/2023 $17,784 $19,256 $18,488 $26,385 9/30/2023 $17,155 $18,513 $17,752 $25,127 10/31/2023 $16,806 $17,860 $17,287 $24,599 11/30/2023 $18,145 $19,207 $18,519 $26,845 12/31/2023 $19,041 $20,271 $19,477 $28,065 1/31/2024 $19,165 $20,292 $19,524 $28,536 2/29/2024 $20,125 $21,041 $20,132 $30,060 3/31/2024 $20,979 $22,092 $20,982 $31,027 4/30/2024 $20,084 $21,149 $20,200 $29,760 5/31/2024 $20,707 $21,819 $20,876 $31,236 6/30/2024 $20,765 $21,614 $20,912 $32,356 7/31/2024 $21,561 $22,719 $21,765 $32,750 8/31/2024 $22,038 $23,328 $22,299 $33,545 9/30/2024 $22,279 $23,652 $22,611 $34,261 10/31/2024 $22,450 $23,392 $22,383 $33,950 |
| Average Annual Return [Table Text Block] | AATR 1 Year 5 Years 10 Years Class R3 at NAV 33.58% 8.98% 8.42% Russell 1000 Value Index 30.98% 10.14% 8.87% Lipper Equity Income Fund Average 29.48% 10.21% 8.39% S&P 500 Index Footnote Reference 38.02% 15.27% 13.00% |
| No Deduction of Taxes [Text Block] | The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. |
| AssetsNet | $ 6,234,840,583 |
| Holdings Count | Holding | 70 |
| Advisory Fees Paid, Amount | $ 18,564,515 |
| InvestmentCompanyPortfolioTurnover | 44% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 Total Net Assets $6,234,840,583 # of Portfolio Holdings 70 Portfolio Turnover Rate 44% Total Advisory Fees Paid $18,564,515 |
| Holdings [Text Block] | Portfolio Holdings Presented by Sector Footnote Reference % Footnote Reference Communication Services 3.12 % Consumer Discretionary 5.74 % Consumer Staples 8.74 % Energy 7.46 % Financials 24.27 % Health Care 10.84 % Industrials 15.91 % Information Technology 9.79 % Materials 5.80 % Utilities 5.34 % Repurchase Agreements 1.66 % Money Market Funds Footnote Reference 1.20 % Time Deposits Footnote Reference 0.13 % Total 100.00% Footnote Description Footnote A sector may comprise several industries Footnote Represents percent of total investments, which excludes derivatives. Footnote Securities were purchased with the cash collateral from loaned securities. |
| Material Fund Change [Text Block] | Summary of Fund Changes There were no material fund changes during the period. |
| Summary of Change Legend [Text Block] | There were no material fund changes during the period. |
| C000155435 | |
| Shareholder Report [Line Items] | |
| Fund Name | Lord Abbett Affiliated Fund Inc. |
| Class Name | Class R4 |
| Trading Symbol | LAFSX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Lord Abbett Affiliated Fund Inc. for the period of November 1, 2023 to October 31, 2024, as well as certain changes to the Fund. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at lordabbett.com/FundDocuments |
| Additional Information Phone Number | 888-522-2388 |
| Additional Information Website | lordabbett.com/FundDocuments</span>" id="sjs-B228"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 20px; margin: 0px; overflow: visible; text-align: left;">lordabbett.com/FundDocuments</span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R4 $81 0.69% |
| Expenses Paid, Amount | $ 81 |
| Expense Ratio, Percent | 0.69% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? For the fiscal year ended October 31, 2024, the Fund returned 33.98%, reflecting performance at the net asset value (NAV) of Class R4 shares, compared to the 30.98% of a securities market index with investment characteristics similar to those of the Fund, the Russell 1000 Value Index. The Fund's broad-based securities market index, the S&P 500 Index, returned 38.02% over the same period. Positive factors for the markets included momentum around the soft-landing narrative, which was supported by signs of a cooling labor market and a slowing economy. This led to the U.S. Federal Reserve (Fed) lowering its policy rate by 50 basis points in September. There were also increased expectations for further rate cuts in 2024, which was influenced by mixed economic data, including softer consumer price index (CPI) reports and fluctuating job market indicators, which sparked recession fears but were mostly balanced by strong consumer spending and retail sales. Top contributors to performance: Top detractors from performance: |
| Performance Past Does Not Indicate Future [Text] | The Fund's past performance is no guarantee of future results. |
| Line Graph [Table Text Block] | Class R4 Russell 1000 Value Index Lipper Equity Income Fund Average S&P 500 Index 6/30/2015 $10,000 $10,000 $10,000 $10,000 7/31/2015 $10,082 $10,044 $10,083 $10,210 8/31/2015 $9,455 $9,446 $9,517 $9,594 9/30/2015 $9,243 $9,161 $9,258 $9,356 10/31/2015 $9,905 $9,852 $9,899 $10,145 11/30/2015 $9,856 $9,889 $9,876 $10,176 12/31/2015 $9,665 $9,677 $9,675 $10,015 1/31/2016 $9,192 $9,177 $9,296 $9,518 2/29/2016 $9,261 $9,174 $9,340 $9,505 3/31/2016 $9,909 $9,835 $9,946 $10,150 4/30/2016 $10,012 $10,042 $10,046 $10,189 5/31/2016 $10,150 $10,198 $10,168 $10,372 6/30/2016 $10,221 $10,286 $10,288 $10,399 7/31/2016 $10,568 $10,585 $10,588 $10,783 8/31/2016 $10,603 $10,666 $10,580 $10,798 9/30/2016 $10,600 $10,644 $10,549 $10,800 10/31/2016 $10,482 $10,479 $10,353 $10,603 11/30/2016 $11,131 $11,078 $10,781 $10,996 12/31/2016 $11,346 $11,355 $11,016 $11,213 1/31/2017 $11,368 $11,436 $11,124 $11,426 2/28/2017 $11,894 $11,847 $11,478 $11,879 3/31/2017 $11,809 $11,726 $11,442 $11,893 4/30/2017 $11,861 $11,704 $11,543 $12,015 5/31/2017 $11,928 $11,692 $11,595 $12,184 6/30/2017 $12,048 $11,883 $11,704 $12,260 7/31/2017 $12,175 $12,041 $11,860 $12,512 8/31/2017 $12,018 $11,901 $11,780 $12,551 9/30/2017 $12,417 $12,254 $12,118 $12,810 10/31/2017 $12,530 $12,343 $12,254 $13,109 11/30/2017 $12,967 $12,721 $12,614 $13,511 12/31/2017 $13,172 $12,906 $12,774 $13,661 1/31/2018 $13,714 $13,405 $13,258 $14,443 2/28/2018 $13,105 $12,765 $12,657 $13,911 3/31/2018 $12,857 $12,541 $12,451 $13,557 4/30/2018 $12,874 $12,582 $12,507 $13,609 5/31/2018 $12,949 $12,657 $12,660 $13,937 6/30/2018 $12,921 $12,688 $12,701 $14,023 7/31/2018 $13,486 $13,190 $13,157 $14,544 8/31/2018 $13,731 $13,385 $13,366 $15,018 9/30/2018 $13,758 $13,412 $13,375 $15,104 10/31/2018 $13,046 $12,717 $12,626 $14,072 11/30/2018 $13,444 $13,097 $12,949 $14,358 12/31/2018 $12,188 $11,839 $11,850 $13,062 1/31/2019 $13,068 $12,761 $12,668 $14,109 2/28/2019 $13,485 $13,169 $13,043 $14,562 3/31/2019 $13,473 $13,252 $13,150 $14,845 4/30/2019 $13,939 $13,722 $13,563 $15,446 5/31/2019 $13,063 $12,840 $12,777 $14,464 6/30/2019 $13,987 $13,762 $13,565 $15,483 7/31/2019 $14,174 $13,876 $13,697 $15,706 8/31/2019 $13,800 $13,468 $13,437 $15,457 9/30/2019 $14,329 $13,948 $13,846 $15,746 10/31/2019 $14,443 $14,143 $13,992 $16,087 11/30/2019 $14,913 $14,581 $14,341 $16,671 12/31/2019 $15,268 $14,982 $14,728 $17,175 1/31/2020 $14,813 $14,659 $14,436 $17,168 2/29/2020 $13,322 $13,240 $13,120 $15,755 3/31/2020 $11,001 $10,977 $11,108 $13,809 4/30/2020 $12,181 $12,211 $12,283 $15,579 5/31/2020 $12,678 $12,630 $12,743 $16,321 6/30/2020 $12,717 $12,546 $12,818 $16,645 7/31/2020 $13,149 $13,042 $13,313 $17,584 8/31/2020 $13,748 $13,581 $13,866 $18,848 9/30/2020 $13,385 $13,247 $13,498 $18,132 10/31/2020 $13,089 $13,073 $13,256 $17,650 11/30/2020 $14,638 $14,832 $14,852 $19,582 12/31/2020 $15,076 $15,400 $15,353 $20,335 1/31/2021 $14,788 $15,259 $15,242 $20,129 2/28/2021 $15,571 $16,182 $15,852 $20,684 3/31/2021 $16,394 $17,134 $16,790 $21,590 4/30/2021 $17,179 $17,819 $17,442 $22,742 5/31/2021 $17,537 $18,235 $17,824 $22,901 6/30/2021 $17,308 $18,026 $17,754 $23,436 7/31/2021 $17,647 $18,170 $17,954 $23,993 8/31/2021 $18,146 $18,531 $18,317 $24,722 9/30/2021 $17,301 $17,885 $17,593 $23,572 10/31/2021 $18,422 $18,794 $18,561 $25,224 11/30/2021 $18,047 $18,131 $18,106 $25,049 12/31/2021 $19,103 $19,275 $19,216 $26,172 1/31/2022 $18,227 $18,826 $18,755 $24,817 2/28/2022 $17,887 $18,608 $18,472 $24,074 3/31/2022 $18,262 $19,133 $18,963 $24,968 4/30/2022 $17,104 $18,054 $17,986 $22,791 5/31/2022 $17,310 $18,405 $18,333 $22,833 6/30/2022 $16,097 $16,797 $16,948 $20,948 7/31/2022 $17,075 $17,911 $17,937 $22,879 8/31/2022 $16,617 $17,377 $17,392 $21,946 9/30/2022 $15,432 $15,853 $15,948 $19,925 10/31/2022 $16,874 $17,479 $17,463 $21,538 11/30/2022 $17,842 $18,571 $18,522 $22,742 12/31/2022 $17,216 $17,822 $17,787 $21,432 1/31/2023 $17,549 $18,746 $18,555 $22,778 2/28/2023 $17,116 $18,085 $17,993 $22,223 3/31/2023 $16,766 $18,002 $17,957 $23,038 4/30/2023 $17,023 $18,273 $18,192 $23,398 5/31/2023 $16,487 $17,568 $17,568 $23,500 6/30/2023 $17,429 $18,735 $18,630 $25,053 7/31/2023 $18,069 $19,394 $19,233 $25,857 8/31/2023 $17,755 $18,870 $18,790 $25,446 9/30/2023 $17,137 $18,142 $18,043 $24,232 10/31/2023 $16,788 $17,502 $17,570 $23,723 11/30/2023 $18,139 $18,823 $18,822 $25,889 12/31/2023 $19,035 $19,865 $19,796 $27,066 1/31/2024 $19,159 $19,886 $19,843 $27,520 2/29/2024 $20,121 $20,619 $20,462 $28,990 3/31/2024 $20,989 $21,650 $21,326 $29,923 4/30/2024 $20,092 $20,725 $20,531 $28,700 5/31/2024 $20,716 $21,382 $21,218 $30,124 6/30/2024 $20,776 $21,181 $21,254 $31,204 7/31/2024 $21,574 $22,264 $22,121 $31,584 8/31/2024 $22,064 $22,861 $22,663 $32,350 9/30/2024 $22,309 $23,179 $22,981 $33,041 10/31/2024 $22,492 $22,924 $22,749 $32,742 |
| Average Annual Return [Table Text Block] | AATR 1 Year 5 Years Since Inception
6/30/15 Class R4 at NAV 33.98% 9.26% 9.07% Russell 1000 Value Index 30.98% 10.14% 9.29% Lipper Equity Income Fund Average 29.48% 10.21% 9.20% S&P 500 Index Footnote Reference 38.02% 15.27% 13.54% |
| Performance Inception Date | Jun. 30, 2015 |
| No Deduction of Taxes [Text Block] | The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. |
| AssetsNet | $ 6,234,840,583 |
| Holdings Count | Holding | 70 |
| Advisory Fees Paid, Amount | $ 18,564,515 |
| InvestmentCompanyPortfolioTurnover | 44% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 Total Net Assets $6,234,840,583 # of Portfolio Holdings 70 Portfolio Turnover Rate 44% Total Advisory Fees Paid $18,564,515 |
| Holdings [Text Block] | Portfolio Holdings Presented by Sector Footnote Reference % Footnote Reference Communication Services 3.12 % Consumer Discretionary 5.74 % Consumer Staples 8.74 % Energy 7.46 % Financials 24.27 % Health Care 10.84 % Industrials 15.91 % Information Technology 9.79 % Materials 5.80 % Utilities 5.34 % Repurchase Agreements 1.66 % Money Market Funds Footnote Reference 1.20 % Time Deposits Footnote Reference 0.13 % Total 100.00% Footnote Description Footnote A sector may comprise several industries Footnote Represents percent of total investments, which excludes derivatives. Footnote Securities were purchased with the cash collateral from loaned securities. |
| Material Fund Change [Text Block] | Summary of Fund Changes There were no material fund changes during the period. |
| Summary of Change Legend [Text Block] | There were no material fund changes during the period. |
| C000155436 | |
| Shareholder Report [Line Items] | |
| Fund Name | Lord Abbett Affiliated Fund Inc. |
| Class Name | Class R5 |
| Trading Symbol | LAFTX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Lord Abbett Affiliated Fund Inc. for the period of November 1, 2023 to October 31, 2024, as well as certain changes to the Fund. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at lordabbett.com/FundDocuments |
| Additional Information Phone Number | 888-522-2388 |
| Additional Information Website | lordabbett.com/FundDocuments</span>" id="sjs-B255"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 20px; margin: 0px; overflow: visible; text-align: left;">lordabbett.com/FundDocuments</span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R5 $52 0.44% |
| Expenses Paid, Amount | $ 52 |
| Expense Ratio, Percent | 0.44% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? For the fiscal year ended October 31, 2024, the Fund returned 34.38%, reflecting performance at the net asset value (NAV) of Class R5 shares, compared to the 30.98% of a securities market index with investment characteristics similar to those of the Fund, the Russell 1000 Value Index. The Fund's broad-based securities market index, the S&P 500 Index, returned 38.02% over the same period. Positive factors for the markets included momentum around the soft-landing narrative, which was supported by signs of a cooling labor market and a slowing economy. This led to the U.S. Federal Reserve (Fed) lowering its policy rate by 50 basis points in September. There were also increased expectations for further rate cuts in 2024, which was influenced by mixed economic data, including softer consumer price index (CPI) reports and fluctuating job market indicators, which sparked recession fears but were mostly balanced by strong consumer spending and retail sales. Top contributors to performance: Top detractors from performance: |
| Performance Past Does Not Indicate Future [Text] | The Fund's past performance is no guarantee of future results. |
| Line Graph [Table Text Block] | Class R5 Russell 1000 Value Index Lipper Equity Income Fund Average S&P 500 Index 6/30/2015 $10,000 $10,000 $10,000 $10,000 7/31/2015 $10,088 $10,044 $10,083 $10,210 8/31/2015 $9,456 $9,446 $9,517 $9,594 9/30/2015 $9,251 $9,161 $9,258 $9,356 10/31/2015 $9,912 $9,852 $9,899 $10,145 11/30/2015 $9,870 $9,889 $9,876 $10,176 12/31/2015 $9,679 $9,677 $9,675 $10,015 1/31/2016 $9,207 $9,177 $9,296 $9,518 2/29/2016 $9,275 $9,174 $9,340 $9,505 3/31/2016 $9,928 $9,835 $9,946 $10,150 4/30/2016 $10,031 $10,042 $10,046 $10,189 5/31/2016 $10,176 $10,198 $10,168 $10,372 6/30/2016 $10,246 $10,286 $10,288 $10,399 7/31/2016 $10,593 $10,585 $10,588 $10,783 8/31/2016 $10,634 $10,666 $10,580 $10,798 9/30/2016 $10,631 $10,644 $10,549 $10,800 10/31/2016 $10,520 $10,479 $10,353 $10,603 11/30/2016 $11,168 $11,078 $10,781 $10,996 12/31/2016 $11,386 $11,355 $11,016 $11,213 1/31/2017 $11,416 $11,436 $11,124 $11,426 2/28/2017 $11,941 $11,847 $11,478 $11,879 3/31/2017 $11,865 $11,726 $11,442 $11,893 4/30/2017 $11,917 $11,704 $11,543 $12,015 5/31/2017 $11,985 $11,692 $11,595 $12,184 6/30/2017 $12,109 $11,883 $11,704 $12,260 7/31/2017 $12,236 $12,041 $11,860 $12,512 8/31/2017 $12,086 $11,901 $11,780 $12,551 9/30/2017 $12,484 $12,254 $12,118 $12,810 10/31/2017 $12,605 $12,343 $12,254 $13,109 11/30/2017 $13,042 $12,721 $12,614 $13,511 12/31/2017 $13,252 $12,906 $12,774 $13,661 1/31/2018 $13,803 $13,405 $13,258 $14,443 2/28/2018 $13,194 $12,765 $12,657 $13,911 3/31/2018 $12,946 $12,541 $12,451 $13,557 4/30/2018 $12,962 $12,582 $12,507 $13,609 5/31/2018 $13,038 $12,657 $12,660 $13,937 6/30/2018 $13,018 $12,688 $12,701 $14,023 7/31/2018 $13,592 $13,190 $13,157 $14,544 8/31/2018 $13,846 $13,385 $13,366 $15,018 9/30/2018 $13,872 $13,412 $13,375 $15,104 10/31/2018 $13,159 $12,717 $12,626 $14,072 11/30/2018 $13,558 $13,097 $12,949 $14,358 12/31/2018 $12,299 $11,839 $11,850 $13,062 1/31/2019 $13,181 $12,761 $12,668 $14,109 2/28/2019 $13,608 $13,169 $13,043 $14,562 3/31/2019 $13,605 $13,252 $13,150 $14,845 4/30/2019 $14,082 $13,722 $13,563 $15,446 5/31/2019 $13,194 $12,840 $12,777 $14,464 6/30/2019 $14,130 $13,762 $13,565 $15,483 7/31/2019 $14,327 $13,876 $13,697 $15,706 8/31/2019 $13,942 $13,468 $13,437 $15,457 9/30/2019 $14,492 $13,948 $13,846 $15,746 10/31/2019 $14,605 $14,143 $13,992 $16,087 11/30/2019 $15,077 $14,581 $14,341 $16,671 12/31/2019 $15,444 $14,982 $14,728 $17,175 1/31/2020 $14,987 $14,659 $14,436 $17,168 2/29/2020 $13,480 $13,240 $13,120 $15,755 3/31/2020 $11,137 $10,977 $11,108 $13,809 4/30/2020 $12,323 $12,211 $12,283 $15,579 5/31/2020 $12,833 $12,630 $12,743 $16,321 6/30/2020 $12,870 $12,546 $12,818 $16,645 7/31/2020 $13,324 $13,042 $13,313 $17,584 8/31/2020 $13,926 $13,581 $13,866 $18,848 9/30/2020 $13,560 $13,247 $13,498 $18,132 10/31/2020 $13,262 $13,073 $13,256 $17,650 11/30/2020 $14,831 $14,832 $14,852 $19,582 12/31/2020 $15,280 $15,400 $15,353 $20,335 1/31/2021 $14,991 $15,259 $15,242 $20,129 2/28/2021 $15,789 $16,182 $15,852 $20,684 3/31/2021 $16,628 $17,134 $16,790 $21,590 4/30/2021 $17,439 $17,819 $17,442 $22,742 5/31/2021 $17,799 $18,235 $17,824 $22,901 6/30/2021 $17,569 $18,026 $17,754 $23,436 7/31/2021 $17,911 $18,170 $17,954 $23,993 8/31/2021 $18,424 $18,531 $18,317 $24,722 9/30/2021 $17,573 $17,885 $17,593 $23,572 10/31/2021 $18,714 $18,794 $18,561 $25,224 11/30/2021 $18,335 $18,131 $18,106 $25,049 12/31/2021 $19,412 $19,275 $19,216 $26,172 1/31/2022 $18,528 $18,826 $18,755 $24,817 2/28/2022 $18,185 $18,608 $18,472 $24,074 3/31/2022 $18,575 $19,133 $18,963 $24,968 4/30/2022 $17,395 $18,054 $17,986 $22,791 5/31/2022 $17,614 $18,405 $18,333 $22,833 6/30/2022 $16,379 $16,797 $16,948 $20,948 7/31/2022 $17,377 $17,911 $17,937 $22,879 8/31/2022 $16,914 $17,377 $17,392 $21,946 9/30/2022 $15,720 $15,853 $15,948 $19,925 10/31/2022 $17,188 $17,479 $17,463 $21,538 11/30/2022 $18,177 $18,571 $18,522 $22,742 12/31/2022 $17,543 $17,822 $17,787 $21,432 1/31/2023 $17,880 $18,746 $18,555 $22,778 2/28/2023 $17,442 $18,085 $17,993 $22,223 3/31/2023 $17,088 $18,002 $17,957 $23,038 4/30/2023 $17,359 $18,273 $18,192 $23,398 5/31/2023 $16,817 $17,568 $17,568 $23,500 6/30/2023 $17,781 $18,735 $18,630 $25,053 7/31/2023 $18,440 $19,394 $19,233 $25,857 8/31/2023 $18,122 $18,870 $18,790 $25,446 9/30/2023 $17,496 $18,142 $18,043 $24,232 10/31/2023 $17,132 $17,502 $17,570 $23,723 11/30/2023 $18,523 $18,823 $18,822 $25,889 12/31/2023 $19,442 $19,865 $19,796 $27,066 1/31/2024 $19,580 $19,886 $19,843 $27,520 2/29/2024 $20,566 $20,619 $20,462 $28,990 3/31/2024 $21,446 $21,650 $21,326 $29,923 4/30/2024 $20,537 $20,725 $20,531 $28,700 5/31/2024 $21,181 $21,382 $21,218 $30,124 6/30/2024 $21,244 $21,181 $21,254 $31,204 7/31/2024 $22,077 $22,264 $22,121 $31,584 8/31/2024 $22,586 $22,861 $22,663 $32,350 9/30/2024 $22,836 $23,179 $22,981 $33,041 10/31/2024 $23,021 $22,924 $22,749 $32,742 |
| Average Annual Return [Table Text Block] | AATR 1 Year 5 Years Since Inception
6/30/15 Class R5 at NAV 34.38% 9.53% 9.34% Russell 1000 Value Index 30.98% 10.14% 9.29% Lipper Equity Income Fund Average 29.48% 10.21% 9.20% S&P 500 Index Footnote Reference 38.02% 15.27% 13.54% |
| Performance Inception Date | Jun. 30, 2015 |
| No Deduction of Taxes [Text Block] | The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. |
| AssetsNet | $ 6,234,840,583 |
| Holdings Count | Holding | 70 |
| Advisory Fees Paid, Amount | $ 18,564,515 |
| InvestmentCompanyPortfolioTurnover | 44% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 Total Net Assets $6,234,840,583 # of Portfolio Holdings 70 Portfolio Turnover Rate 44% Total Advisory Fees Paid $18,564,515 |
| Holdings [Text Block] | Portfolio Holdings Presented by Sector Footnote Reference % Footnote Reference Communication Services 3.12 % Consumer Discretionary 5.74 % Consumer Staples 8.74 % Energy 7.46 % Financials 24.27 % Health Care 10.84 % Industrials 15.91 % Information Technology 9.79 % Materials 5.80 % Utilities 5.34 % Repurchase Agreements 1.66 % Money Market Funds Footnote Reference 1.20 % Time Deposits Footnote Reference 0.13 % Total 100.00% Footnote Description Footnote A sector may comprise several industries Footnote Represents percent of total investments, which excludes derivatives. Footnote Securities were purchased with the cash collateral from loaned securities. |
| Material Fund Change [Text Block] | Summary of Fund Changes There were no material fund changes during the period. |
| Summary of Change Legend [Text Block] | There were no material fund changes during the period. |
| C000155437 | |
| Shareholder Report [Line Items] | |
| Fund Name | Lord Abbett Affiliated Fund Inc. |
| Class Name | Class R6 |
| Trading Symbol | LAFVX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Lord Abbett Affiliated Fund Inc. for the period of November 1, 2023 to October 31, 2024, as well as certain changes to the Fund. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at lordabbett.com/FundDocuments |
| Additional Information Phone Number | 888-522-2388 |
| Additional Information Website | lordabbett.com/FundDocuments</span>" id="sjs-B282"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 400; grid-area: auto; line-height: 20px; margin: 0px; overflow: visible; text-align: left;">lordabbett.com/FundDocuments</span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R6 $45 0.38% |
| Expenses Paid, Amount | $ 45 |
| Expense Ratio, Percent | 0.38% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what affected its performance? For the fiscal year ended October 31, 2024, the Fund returned 34.40%, reflecting performance at the net asset value (NAV) of Class R6 shares, compared to the 30.98% of a securities market index with investment characteristics similar to those of the Fund, the Russell 1000 Value Index. The Fund's broad-based securities market index, the S&P 500 Index, returned 38.02% over the same period. Positive factors for the markets included momentum around the soft-landing narrative, which was supported by signs of a cooling labor market and a slowing economy. This led to the U.S. Federal Reserve (Fed) lowering its policy rate by 50 basis points in September. There were also increased expectations for further rate cuts in 2024, which was influenced by mixed economic data, including softer consumer price index (CPI) reports and fluctuating job market indicators, which sparked recession fears but were mostly balanced by strong consumer spending and retail sales. Top contributors to performance: Top detractors from performance: |
| Performance Past Does Not Indicate Future [Text] | The Fund's past performance is no guarantee of future results. |
| Line Graph [Table Text Block] | Class R6 Russell 1000 Value Index Lipper Equity Income Fund Average S&P 500 Index 6/30/2015 $10,000 $10,000 $10,000 $10,000 7/31/2015 $10,088 $10,044 $10,083 $10,210 8/31/2015 $9,456 $9,446 $9,517 $9,594 9/30/2015 $9,251 $9,161 $9,258 $9,356 10/31/2015 $9,918 $9,852 $9,899 $10,145 11/30/2015 $9,870 $9,889 $9,876 $10,176 12/31/2015 $9,679 $9,677 $9,675 $10,015 1/31/2016 $9,214 $9,177 $9,296 $9,518 2/29/2016 $9,283 $9,174 $9,340 $9,505 3/31/2016 $9,930 $9,835 $9,946 $10,150 4/30/2016 $10,040 $10,042 $10,046 $10,189 5/31/2016 $10,184 $10,198 $10,168 $10,372 6/30/2016 $10,256 $10,286 $10,288 $10,399 7/31/2016 $10,609 $10,585 $10,588 $10,783 8/31/2016 $10,644 $10,666 $10,580 $10,798 9/30/2016 $10,649 $10,644 $10,549 $10,800 10/31/2016 $10,530 $10,479 $10,353 $10,603 11/30/2016 $11,179 $11,078 $10,781 $10,996 12/31/2016 $11,405 $11,355 $11,016 $11,213 1/31/2017 $11,427 $11,436 $11,124 $11,426 2/28/2017 $11,960 $11,847 $11,478 $11,879 3/31/2017 $11,878 $11,726 $11,442 $11,893 4/30/2017 $11,930 $11,704 $11,543 $12,015 5/31/2017 $12,005 $11,692 $11,595 $12,184 6/30/2017 $12,130 $11,883 $11,704 $12,260 7/31/2017 $12,257 $12,041 $11,860 $12,512 8/31/2017 $12,107 $11,901 $11,780 $12,551 9/30/2017 $12,506 $12,254 $12,118 $12,810 10/31/2017 $12,626 $12,343 $12,254 $13,109 11/30/2017 $13,064 $12,721 $12,614 $13,511 12/31/2017 $13,284 $12,906 $12,774 $13,661 1/31/2018 $13,835 $13,405 $13,258 $14,443 2/28/2018 $13,225 $12,765 $12,657 $13,911 3/31/2018 $12,970 $12,541 $12,451 $13,557 4/30/2018 $12,995 $12,582 $12,507 $13,609 5/31/2018 $13,070 $12,657 $12,660 $13,937 6/30/2018 $13,043 $12,688 $12,701 $14,023 7/31/2018 $13,626 $13,190 $13,157 $14,544 8/31/2018 $13,880 $13,385 $13,366 $15,018 9/30/2018 $13,908 $13,412 $13,375 $15,104 10/31/2018 $13,185 $12,717 $12,626 $14,072 11/30/2018 $13,593 $13,097 $12,949 $14,358 12/31/2018 $12,325 $11,839 $11,850 $13,062 1/31/2019 $13,217 $12,761 $12,668 $14,109 2/28/2019 $13,644 $13,169 $13,043 $14,562 3/31/2019 $13,642 $13,252 $13,150 $14,845 4/30/2019 $14,119 $13,722 $13,563 $15,446 5/31/2019 $13,231 $12,840 $12,777 $14,464 6/30/2019 $14,168 $13,762 $13,565 $15,483 7/31/2019 $14,365 $13,876 $13,697 $15,706 8/31/2019 $13,989 $13,468 $13,437 $15,457 9/30/2019 $14,531 $13,948 $13,846 $15,746 10/31/2019 $14,654 $14,143 $13,992 $16,087 11/30/2019 $15,126 $14,581 $14,341 $16,671 12/31/2019 $15,494 $14,982 $14,728 $17,175 1/31/2020 $15,036 $14,659 $14,436 $17,168 2/29/2020 $13,528 $13,240 $13,120 $15,755 3/31/2020 $11,174 $10,977 $11,108 $13,809 4/30/2020 $12,371 $12,211 $12,283 $15,579 5/31/2020 $12,881 $12,630 $12,743 $16,321 6/30/2020 $12,920 $12,546 $12,818 $16,645 7/31/2020 $13,374 $13,042 $13,313 $17,584 8/31/2020 $13,987 $13,581 $13,866 $18,848 9/30/2020 $13,622 $13,247 $13,498 $18,132 10/31/2020 $13,324 $13,073 $13,256 $17,650 11/30/2020 $14,894 $14,832 $14,852 $19,582 12/31/2020 $15,346 $15,400 $15,353 $20,335 1/31/2021 $15,056 $15,259 $15,242 $20,129 2/28/2021 $15,865 $16,182 $15,852 $20,684 3/31/2021 $16,707 $17,134 $16,790 $21,590 4/30/2021 $17,518 $17,819 $17,442 $22,742 5/31/2021 $17,879 $18,235 $17,824 $22,901 6/30/2021 $17,651 $18,026 $17,754 $23,436 7/31/2021 $17,994 $18,170 $17,954 $23,993 8/31/2021 $18,517 $18,531 $18,317 $24,722 9/30/2021 $17,657 $17,885 $17,593 $23,572 10/31/2021 $18,810 $18,794 $18,561 $25,224 11/30/2021 $18,431 $18,131 $18,106 $25,049 12/31/2021 $19,511 $19,275 $19,216 $26,172 1/31/2022 $18,615 $18,826 $18,755 $24,817 2/28/2022 $18,282 $18,608 $18,472 $24,074 3/31/2022 $18,674 $19,133 $18,963 $24,968 4/30/2022 $17,493 $18,054 $17,986 $22,791 5/31/2022 $17,702 $18,405 $18,333 $22,833 6/30/2022 $16,467 $16,797 $16,948 $20,948 7/31/2022 $17,477 $17,911 $17,937 $22,879 8/31/2022 $17,014 $17,377 $17,392 $21,946 9/30/2022 $15,809 $15,853 $15,948 $19,925 10/31/2022 $17,280 $17,479 $17,463 $21,538 11/30/2022 $18,281 $18,571 $18,522 $22,742 12/31/2022 $17,648 $17,822 $17,787 $21,432 1/31/2023 $17,986 $18,746 $18,555 $22,778 2/28/2023 $17,558 $18,085 $17,993 $22,223 3/31/2023 $17,195 $18,002 $17,957 $23,038 4/30/2023 $17,466 $18,273 $18,192 $23,398 5/31/2023 $16,923 $17,568 $17,568 $23,500 6/30/2023 $17,890 $18,735 $18,630 $25,053 7/31/2023 $18,550 $19,394 $19,233 $25,857 8/31/2023 $18,231 $18,870 $18,790 $25,446 9/30/2023 $17,605 $18,142 $18,043 $24,232 10/31/2023 $17,251 $17,502 $17,570 $23,723 11/30/2023 $18,645 $18,823 $18,822 $25,889 12/31/2023 $19,566 $19,865 $19,796 $27,066 1/31/2024 $19,703 $19,886 $19,843 $27,520 2/29/2024 $20,702 $20,619 $20,462 $28,990 3/31/2024 $21,596 $21,650 $21,326 $29,923 4/30/2024 $20,674 $20,725 $20,531 $28,700 5/31/2024 $21,319 $21,382 $21,218 $30,124 6/30/2024 $21,394 $21,181 $21,254 $31,204 7/31/2024 $22,228 $22,264 $22,121 $31,584 8/31/2024 $22,737 $22,861 $22,663 $32,350 9/30/2024 $22,987 $23,179 $22,981 $33,041 10/31/2024 $23,185 $22,924 $22,749 $32,742 |
| Average Annual Return [Table Text Block] | AATR 1 Year 5 Years Since Inception
6/30/15 Class R6 at NAV 34.40% 9.61% 9.42% Russell 1000 Value Index 30.98% 10.14% 9.29% Lipper Equity Income Fund Average 29.48% 10.21% 9.20% S&P 500 Index Footnote Reference 38.02% 15.27% 13.54% |
| Performance Inception Date | Jun. 30, 2015 |
| No Deduction of Taxes [Text Block] | The returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. |
| AssetsNet | $ 6,234,840,583 |
| Holdings Count | Holding | 70 |
| Advisory Fees Paid, Amount | $ 18,564,515 |
| InvestmentCompanyPortfolioTurnover | 44% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of October 31, 2024 Total Net Assets $6,234,840,583 # of Portfolio Holdings 70 Portfolio Turnover Rate 44% Total Advisory Fees Paid $18,564,515 |
| Holdings [Text Block] | Portfolio Holdings Presented by Sector Footnote Reference % Footnote Reference Communication Services 3.12 % Consumer Discretionary 5.74 % Consumer Staples 8.74 % Energy 7.46 % Financials 24.27 % Health Care 10.84 % Industrials 15.91 % Information Technology 9.79 % Materials 5.80 % Utilities 5.34 % Repurchase Agreements 1.66 % Money Market Funds Footnote Reference 1.20 % Time Deposits Footnote Reference 0.13 % Total 100.00% Footnote Description Footnote A sector may comprise several industries Footnote Represents percent of total investments, which excludes derivatives. Footnote Securities were purchased with the cash collateral from loaned securities. |
| Material Fund Change [Text Block] | Summary of Fund Changes There were no material fund changes during the period. |
| Summary of Change Legend [Text Block] | There were no material fund changes during the period. |
