| Form N-CSR Cover | 12 Months Ended |
| Oct. 31, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | DEUTSCHE DWS MUNICIPAL TRUST |
| Entity Central Index Key | 0000203142 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Oct. 31, 2024 |
| Shareholder Report | 12 Months Ended |
| Oct. 31, 2024 USD ($) Holding | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | DEUTSCHE DWS MUNICIPAL TRUST |
| Entity Central Index Key | 0000203142 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Oct. 31, 2024 |
| C000096616 | |
| Shareholder Report [Line Items] | |
| Fund Name | DWS Short Term Municipal Bond Fund |
| Class Name | Class A |
| Trading Symbol | SRMAX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about DWS Short Term Municipal Bond Fund (the "Fund") for the period November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund on the Fund's website at dws.com/mutualreports |
| Additional Information Phone Number | (800) 728-3337 |
| Additional Information Website | dws.com/mutualreports</span>" id="sjs-B19"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 14.6667px; font-weight: 300; grid-area: auto; line-height: 17.6px; margin: 0px; overflow: visible; text-align: left;">dws.com/mutualreports</span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Fund Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A $71 0.69% Gross expense ratio as of the latest prospectus: 0.87%. See prospectus for any contractual or voluntary waivers; without a waiver, costs would have been higher. |
| Expenses Paid, Amount | $ 71 |
| Expense Ratio, Percent | 0.69% |
| Performance Past Does Not Indicate Future [Text] | The Fund's past performance is not a good predictor or guarantee of the Fund's future performance. |
| Average Annual Return [Table Text Block] | Average Annual Total Returns Class/Index 1-Year 5-Year 10-Year Class A Unadjusted for Sales Charge 5.49% 1.26% 1.18% Class A Adjusted for the Maximum Sales Charge (max 2.25% load) 3.12% 0.80% 0.95% Bloomberg Municipal Bond Index 9.70% 1.05% 2.30% Bloomberg 1-Year General Obligation Index 4.21% 1.33% 1.23% Bloomberg 3-Year (2-4) Municipal Bond Index 5.43% 1.12% 1.32% Performance shown is historical. The Fund's past performance is not a good predictor or guarantee of the Fund's future performance. The performance graph and returns table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares. Please visit dws.com/en-us/products/mutual-funds for the Fund’s most recent month-end performance. Unadjusted returns do not reflect sales charges and would have been lower if they had reflected sales charges. |
| No Deduction of Taxes [Text Block] | The performance graph and returns table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares. |
| AssetsNet | $ 131,456,192 |
| Holdings Count | Holding | 130 |
| Advisory Fees Paid, Amount | $ 315,502 |
| InvestmentCompanyPortfolioTurnover | 85% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets ($) 131,456,192 Number of Portfolio Holdings 130 Portfolio Turnover Rate (%) 85 Total Net Advisory Fees Paid ($) 315,502 Modified Duration to Worst 2.0 years Modified duration to worst is the measure of sensitivity of the prices of bonds held by the Fund to a change in interest rates, computed using each bond's nearest call or maturity date. |
| Holdings [Text Block] | Asset Allocation Asset Type % of Net Assets Revenue Bonds 86% General Obligation Bonds 11% Lease Obligations 6% Variable Rate Demand Notes 2% Other Assets and Liabilities (5%) Total 100% |
| Material Fund Change [Text Block] | |
| C000096618 | |
| Shareholder Report [Line Items] | |
| Fund Name | DWS Short Term Municipal Bond Fund |
| Class Name | Class C |
| Trading Symbol | SRMCX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about DWS Short Term Municipal Bond Fund (the "Fund") for the period November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund on the Fund's website at dws.com/mutualreports |
| Additional Information Phone Number | (800) 728-3337 |
| Additional Information Website | dws.com/mutualreports</span>" id="sjs-B42"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 14.6667px; font-weight: 300; grid-area: auto; line-height: 17.6px; margin: 0px; overflow: visible; text-align: left;">dws.com/mutualreports</span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Fund Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C $147 1.44% Gross expense ratio as of the latest prospectus: 1.60%. See prospectus for any contractual or voluntary waivers; without a waiver, costs would have been higher. |
| Expenses Paid, Amount | $ 147 |
| Expense Ratio, Percent | 1.44% |
| Performance Past Does Not Indicate Future [Text] | The Fund's past performance is not a good predictor or guarantee of the Fund's future performance. |
| Average Annual Return [Table Text Block] | Average Annual Total Returns Class/Index 1-Year 5-Year 10-Year Class C Unadjusted for Sales Charge 4.71% 0.49% 0.42% Class C Adjusted for the Maximum Sales Charge (max 1.00% CDSC) 3.71% 0.49% 0.42% Bloomberg Municipal Bond Index 9.70% 1.05% 2.30% Bloomberg 1-Year General Obligation Index 4.21% 1.33% 1.23% Bloomberg 3-Year (2-4) Municipal Bond Index 5.43% 1.12% 1.32% Performance shown is historical. The Fund's past performance is not a good predictor or guarantee of the Fund's future performance. The performance graph and returns table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares. Please visit dws.com/en-us/products/mutual-funds for the Fund’s most recent month-end performance. |
| No Deduction of Taxes [Text Block] | The performance graph and returns table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares. |
| AssetsNet | $ 131,456,192 |
| Holdings Count | Holding | 130 |
| Advisory Fees Paid, Amount | $ 315,502 |
| InvestmentCompanyPortfolioTurnover | 85% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets ($) 131,456,192 Number of Portfolio Holdings 130 Portfolio Turnover Rate (%) 85 Total Net Advisory Fees Paid ($) 315,502 Modified Duration to Worst 2.0 years Modified duration to worst is the measure of sensitivity of the prices of bonds held by the Fund to a change in interest rates, computed using each bond's nearest call or maturity date. |
| Holdings [Text Block] | Asset Allocation Asset Type % of Net Assets Revenue Bonds 86% General Obligation Bonds 11% Lease Obligations 6% Variable Rate Demand Notes 2% Other Assets and Liabilities (5%) Total 100% |
| Material Fund Change [Text Block] | |
| C000096619 | |
| Shareholder Report [Line Items] | |
| Fund Name | DWS Short Term Municipal Bond Fund |
| Class Name | Class S |
| Trading Symbol | SRMSX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about DWS Short Term Municipal Bond Fund (the "Fund") for the period November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund on the Fund's website at dws.com/mutualreports |
| Additional Information Phone Number | (800) 728-3337 |
| Additional Information Website | dws.com/mutualreports</span>" id="sjs-B65"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 14.6667px; font-weight: 300; grid-area: auto; line-height: 17.6px; margin: 0px; overflow: visible; text-align: left;">dws.com/mutualreports</span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Fund Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class S $51 0.50% Gross expense ratio as of the latest prospectus: 0.64%. See prospectus for any contractual or voluntary waivers; without a waiver, costs would have been higher. |
| Expenses Paid, Amount | $ 51 |
| Expense Ratio, Percent | 0.50% |
| Performance Past Does Not Indicate Future [Text] | The Fund's past performance is not a good predictor or guarantee of the Fund's future performance. |
| Average Annual Return [Table Text Block] | Average Annual Total Returns Class/Index 1-Year 5-Year 10-Year Class S No Sales Charge 5.70% 1.42% 1.33% Bloomberg Municipal Bond Index 9.70% 1.05% 2.30% Bloomberg 1-Year General Obligation Index 4.21% 1.33% 1.23% Bloomberg 3-Year (2-4) Municipal Bond Index 5.43% 1.12% 1.32% Performance shown is historical. The Fund's past performance is not a good predictor or guarantee of the Fund's future performance. The performance graph and returns table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares. Please visit dws.com/en-us/products/mutual-funds for the Fund’s most recent month-end performance. |
| No Deduction of Taxes [Text Block] | The performance graph and returns table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares. |
| AssetsNet | $ 131,456,192 |
| Holdings Count | Holding | 130 |
| Advisory Fees Paid, Amount | $ 315,502 |
| InvestmentCompanyPortfolioTurnover | 85% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets ($) 131,456,192 Number of Portfolio Holdings 130 Portfolio Turnover Rate (%) 85 Total Net Advisory Fees Paid ($) 315,502 Modified Duration to Worst 2.0 years Modified duration to worst is the measure of sensitivity of the prices of bonds held by the Fund to a change in interest rates, computed using each bond's nearest call or maturity date. |
| Holdings [Text Block] | Asset Allocation Asset Type % of Net Assets Revenue Bonds 86% General Obligation Bonds 11% Lease Obligations 6% Variable Rate Demand Notes 2% Other Assets and Liabilities (5%) Total 100% |
| Material Fund Change [Text Block] | |
| C000096620 | |
| Shareholder Report [Line Items] | |
| Fund Name | DWS Short Term Municipal Bond Fund |
| Class Name | Institutional Class |
| Trading Symbol | MGSMX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about DWS Short Term Municipal Bond Fund (the "Fund") for the period November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund on the Fund's website at dws.com/mutualreports |
| Additional Information Phone Number | (800) 728-3337 |
| Additional Information Website | dws.com/mutualreports</span>" id="sjs-B88"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 14.6667px; font-weight: 300; grid-area: auto; line-height: 17.6px; margin: 0px; overflow: visible; text-align: left;">dws.com/mutualreports</span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Fund Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Institutional Class $45 0.44% Gross expense ratio as of the latest prospectus: 0.62%. See prospectus for any contractual or voluntary waivers; without a waiver, costs would have been higher. |
| Expenses Paid, Amount | $ 45 |
| Expense Ratio, Percent | 0.44% |
| Performance Past Does Not Indicate Future [Text] | The Fund's past performance is not a good predictor or guarantee of the Fund's future performance. |
| Average Annual Return [Table Text Block] | Average Annual Total Returns Class/Index 1-Year 5-Year 10-Year Institutional Class No Sales Charge 5.76% 1.51% 1.44% Bloomberg Municipal Bond Index 9.70% 1.05% 2.30% Bloomberg 1-Year General Obligation Index 4.21% 1.33% 1.23% Bloomberg 3-Year (2-4) Municipal Bond Index 5.43% 1.12% 1.32% Performance shown is historical. The Fund's past performance is not a good predictor or guarantee of the Fund's future performance. The performance graph and returns table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares. Please visit dws.com/en-us/products/mutual-funds for the Fund’s most recent month-end performance. |
| No Deduction of Taxes [Text Block] | The performance graph and returns table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares. |
| AssetsNet | $ 131,456,192 |
| Holdings Count | Holding | 130 |
| Advisory Fees Paid, Amount | $ 315,502 |
| InvestmentCompanyPortfolioTurnover | 85% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets ($) 131,456,192 Number of Portfolio Holdings 130 Portfolio Turnover Rate (%) 85 Total Net Advisory Fees Paid ($) 315,502 Modified Duration to Worst 2.0 years Modified duration to worst is the measure of sensitivity of the prices of bonds held by the Fund to a change in interest rates, computed using each bond's nearest call or maturity date. |
| Holdings [Text Block] | Asset Allocation Asset Type % of Net Assets Revenue Bonds 86% General Obligation Bonds 11% Lease Obligations 6% Variable Rate Demand Notes 2% Other Assets and Liabilities (5%) Total 100% |
| Material Fund Change [Text Block] |
| Shareholder Report, Line Graph (Details) - USD ($) | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Oct. 31, 2024 | Sep. 30, 2024 | Aug. 31, 2024 | Jul. 31, 2024 | Jun. 30, 2024 | May 31, 2024 | Apr. 30, 2024 | Mar. 31, 2024 | Feb. 29, 2024 | Jan. 31, 2024 | Dec. 31, 2023 | Nov. 30, 2023 | Oct. 31, 2023 | Sep. 30, 2023 | Aug. 31, 2023 | Jul. 31, 2023 | Jun. 30, 2023 | May 31, 2023 | Apr. 30, 2023 | Mar. 31, 2023 | Feb. 28, 2023 | Jan. 31, 2023 | Dec. 31, 2022 | Nov. 30, 2022 | Oct. 31, 2022 | Sep. 30, 2022 | Aug. 31, 2022 | Jul. 31, 2022 | Jun. 30, 2022 | May 31, 2022 | Apr. 30, 2022 | Mar. 31, 2022 | Feb. 28, 2022 | Jan. 31, 2022 | Dec. 31, 2021 | Nov. 30, 2021 | Oct. 31, 2021 | Sep. 30, 2021 | Aug. 31, 2021 | Jul. 31, 2021 | Jun. 30, 2021 | May 31, 2021 | Apr. 30, 2021 | Mar. 31, 2021 | Feb. 28, 2021 | Jan. 31, 2021 | Dec. 31, 2020 | Nov. 30, 2020 | Oct. 31, 2020 | Sep. 30, 2020 | Aug. 31, 2020 | Jul. 31, 2020 | Jun. 30, 2020 | May 31, 2020 | Apr. 30, 2020 | Mar. 31, 2020 | Feb. 29, 2020 | Jan. 31, 2020 | Dec. 31, 2019 | Nov. 30, 2019 | Oct. 31, 2019 | Sep. 30, 2019 | Aug. 31, 2019 | Jul. 31, 2019 | Jun. 30, 2019 | May 31, 2019 | Apr. 30, 2019 | Mar. 31, 2019 | Feb. 28, 2019 | Jan. 31, 2019 | Dec. 31, 2018 | Nov. 30, 2018 | Oct. 31, 2018 | Sep. 30, 2018 | Aug. 31, 2018 | Jul. 31, 2018 | Jun. 30, 2018 | May 31, 2018 | Apr. 30, 2018 | Mar. 31, 2018 | Feb. 28, 2018 | Jan. 31, 2018 | Dec. 31, 2017 | Nov. 30, 2017 | Oct. 31, 2017 | Sep. 30, 2017 | Aug. 31, 2017 | Jul. 31, 2017 | Jun. 30, 2017 | May 31, 2017 | Apr. 30, 2017 | Mar. 31, 2017 | Feb. 28, 2017 | Jan. 31, 2017 | Dec. 31, 2016 | Nov. 30, 2016 | Oct. 31, 2016 | Sep. 30, 2016 | Aug. 31, 2016 | Jul. 31, 2016 | Jun. 30, 2016 | May 31, 2016 | Apr. 30, 2016 | Mar. 31, 2016 | Feb. 29, 2016 | Jan. 31, 2016 | Dec. 31, 2015 | Nov. 30, 2015 | Oct. 31, 2015 | Sep. 30, 2015 | Aug. 31, 2015 | Jul. 31, 2015 | Jun. 30, 2015 | May 31, 2015 | Apr. 30, 2015 | Mar. 31, 2015 | Feb. 28, 2015 | Jan. 31, 2015 | Dec. 31, 2014 | Nov. 30, 2014 | Oct. 31, 2014 | |
| C000096616 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Class A | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,993 | $ 11,034 | $ 10,987 | $ 10,897 | $ 10,818 | $ 10,738 | $ 10,725 | $ 10,744 | $ 10,731 | $ 10,718 | $ 10,716 | $ 10,606 | $ 10,420 | $ 10,409 | $ 10,473 | $ 10,484 | $ 10,462 | $ 10,408 | $ 10,441 | $ 10,441 | $ 10,335 | $ 10,431 | $ 10,305 | $ 10,285 | $ 10,119 | $ 10,122 | $ 10,276 | $ 10,367 | $ 10,261 | $ 10,292 | $ 10,229 | $ 10,346 | $ 10,485 | $ 10,509 | $ 10,639 | $ 10,638 | $ 10,620 | $ 10,634 | $ 10,670 | $ 10,685 | $ 10,657 | $ 10,649 | $ 10,631 | $ 10,602 | $ 10,594 | $ 10,647 | $ 10,617 | $ 10,593 | $ 10,532 | $ 10,543 | $ 10,533 | $ 10,524 | $ 10,462 | $ 10,409 | $ 10,256 | $ 10,265 | $ 10,448 | $ 10,406 | $ 10,355 | $ 10,337 | $ 10,326 | $ 10,304 | $ 10,343 | $ 10,300 | $ 10,258 | $ 10,225 | $ 10,172 | $ 10,158 | $ 10,105 | $ 10,070 | $ 10,025 | $ 9,980 | $ 9,945 | $ 9,960 | $ 9,984 | $ 9,979 | $ 9,955 | $ 9,940 | $ 9,895 | $ 9,910 | $ 9,907 | $ 9,913 | $ 9,911 | $ 9,900 | $ 9,947 | $ 9,956 | $ 9,985 | $ 9,954 | $ 9,934 | $ 9,952 | $ 9,902 | $ 9,871 | $ 9,872 | $ 9,841 | $ 9,802 | $ 9,784 | $ 9,881 | $ 9,899 | $ 9,918 | $ 9,918 | $ 9,909 | $ 9,871 | $ 9,882 | $ 9,863 | $ 9,873 | $ 9,863 | $ 9,815 | $ 9,816 | $ 9,816 | $ 9,799 | $ 9,771 | $ 9,773 | $ 9,755 | $ 9,757 | $ 9,778 | $ 9,780 | $ 9,793 | $ 9,823 | $ 9,760 | $ 9,772 | $ 9,775 |
| C000096618 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Class C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 10,423 | 10,480 | 10,442 | 10,362 | 10,294 | 10,224 | 10,218 | 10,243 | 10,237 | 10,230 | 10,225 | 10,136 | 9,954 | 9,950 | 10,018 | 10,034 | 10,020 | 9,985 | 10,022 | 10,029 | 9,933 | 10,021 | 9,916 | 9,894 | 9,739 | 9,759 | 9,903 | 10,008 | 9,901 | 9,938 | 9,883 | 10,003 | 10,144 | 10,183 | 10,305 | 10,321 | 10,310 | 10,330 | 10,371 | 10,391 | 10,361 | 10,369 | 10,358 | 10,337 | 10,325 | 10,392 | 10,360 | 10,353 | 10,300 | 10,307 | 10,304 | 10,311 | 10,257 | 10,202 | 10,057 | 10,083 | 10,269 | 10,234 | 10,190 | 10,179 | 10,174 | 10,159 | 10,193 | 10,168 | 10,133 | 10,107 | 10,061 | 10,054 | 10,007 | 9,978 | 9,940 | 9,902 | 9,873 | 9,884 | 9,915 | 9,916 | 9,908 | 9,899 | 9,861 | 9,882 | 9,885 | 9,887 | 9,901 | 9,896 | 9,950 | 9,965 | 9,990 | 9,976 | 9,952 | 9,976 | 9,942 | 9,917 | 9,914 | 9,899 | 9,866 | 9,854 | 9,958 | 9,973 | 9,998 | 10,015 | 10,012 | 9,979 | 9,996 | 9,983 | 10,000 | 9,995 | 9,954 | 9,951 | 9,957 | 9,946 | 9,934 | 9,932 | 9,921 | 9,928 | 9,956 | 9,975 | 9,984 | 10,021 | 9,972 | 9,991 | 10,000 |
| C000096619 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Class S | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,410 | 11,463 | 11,412 | 11,316 | 11,232 | 11,148 | 11,132 | 11,150 | 11,135 | 11,119 | 11,105 | 11,000 | 10,794 | 10,792 | 10,846 | 10,856 | 10,833 | 10,786 | 10,819 | 10,818 | 10,706 | 10,804 | 10,673 | 10,651 | 10,477 | 10,479 | 10,638 | 10,731 | 10,619 | 10,650 | 10,583 | 10,692 | 10,835 | 10,869 | 10,991 | 11,000 | 10,981 | 10,993 | 11,028 | 11,042 | 11,001 | 10,991 | 10,982 | 10,951 | 10,931 | 10,994 | 10,952 | 10,925 | 10,861 | 10,871 | 10,860 | 10,859 | 10,794 | 10,728 | 10,568 | 10,587 | 10,774 | 10,730 | 10,665 | 10,655 | 10,632 | 10,619 | 10,647 | 10,602 | 10,568 | 10,533 | 10,466 | 10,461 | 10,405 | 10,368 | 10,321 | 10,273 | 10,235 | 10,239 | 10,263 | 10,257 | 10,240 | 10,223 | 10,177 | 10,191 | 10,186 | 10,181 | 10,187 | 10,175 | 10,222 | 10,230 | 10,248 | 10,226 | 10,204 | 10,211 | 10,168 | 10,135 | 10,134 | 10,101 | 10,061 | 10,040 | 10,139 | 10,156 | 10,165 | 10,173 | 10,163 | 10,123 | 10,132 | 10,111 | 10,120 | 10,109 | 10,059 | 10,048 | 10,048 | 10,028 | 10,009 | 9,999 | 9,980 | 9,980 | 10,001 | 10,012 | 10,013 | 10,043 | 9,987 | 9,998 | 10,000 |
| C000096620 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Institutional Class | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 1,153,203 | 1,158,523 | 1,152,171 | 1,143,590 | 1,133,893 | 1,125,313 | 1,124,833 | 1,125,479 | 1,125,027 | 1,123,412 | 1,121,877 | 1,111,225 | 1,090,418 | 1,089,007 | 1,095,509 | 1,096,381 | 1,093,921 | 1,088,034 | 1,091,197 | 1,090,998 | 1,079,685 | 1,089,473 | 1,076,109 | 1,073,833 | 1,056,207 | 1,057,445 | 1,072,209 | 1,082,580 | 1,070,139 | 1,073,135 | 1,066,357 | 1,078,336 | 1,092,605 | 1,094,863 | 1,108,174 | 1,107,864 | 1,105,803 | 1,107,009 | 1,110,464 | 1,111,784 | 1,108,688 | 1,107,606 | 1,106,597 | 1,102,300 | 1,101,225 | 1,106,445 | 1,103,151 | 1,100,384 | 1,093,849 | 1,094,798 | 1,093,547 | 1,092,290 | 1,085,651 | 1,079,990 | 1,063,811 | 1,065,646 | 1,083,291 | 1,079,806 | 1,073,195 | 1,071,097 | 1,069,725 | 1,067,277 | 1,071,034 | 1,066,451 | 1,061,850 | 1,058,211 | 1,052,487 | 1,050,846 | 1,045,148 | 1,042,352 | 1,036,491 | 1,031,599 | 1,027,721 | 1,029,023 | 1,031,358 | 1,030,654 | 1,027,866 | 1,026,111 | 1,021,323 | 1,022,642 | 1,022,087 | 1,022,512 | 1,022,049 | 1,020,680 | 1,025,372 | 1,026,088 | 1,028,800 | 1,025,456 | 1,023,136 | 1,024,758 | 1,019,405 | 1,016,050 | 1,015,859 | 1,012,490 | 1,008,330 | 1,006,172 | 1,015,982 | 1,017,634 | 1,019,385 | 1,019,178 | 1,018,026 | 1,013,873 | 1,014,745 | 1,012,572 | 1,013,383 | 1,012,141 | 1,007,051 | 1,005,924 | 1,005,763 | 1,004,714 | 1,001,697 | 1,001,669 | 999,657 | 999,598 | 1,001,571 | 1,001,588 | 1,002,647 | 1,005,553 | 998,840 | 999,926 | 1,000,000 |
| DWS Index: Bloomberg Municipal Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg Municipal Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 12,548 | 12,734 | 12,609 | 12,510 | 12,397 | 12,210 | 12,246 | 12,400 | 12,400 | 12,384 | 12,448 | 12,165 | 11,439 | 11,537 | 11,885 | 12,059 | 12,012 | 11,892 | 11,996 | 12,024 | 11,763 | 12,035 | 11,699 | 11,666 | 11,144 | 11,238 | 11,686 | 11,948 | 11,641 | 11,834 | 11,661 | 11,993 | 12,395 | 12,439 | 12,789 | 12,769 | 12,661 | 12,698 | 12,790 | 12,838 | 12,732 | 12,697 | 12,659 | 12,554 | 12,477 | 12,678 | 12,598 | 12,522 | 12,336 | 12,373 | 12,370 | 12,429 | 12,223 | 12,123 | 11,749 | 11,899 | 12,346 | 12,189 | 11,974 | 11,938 | 11,908 | 11,887 | 11,983 | 11,797 | 11,702 | 11,659 | 11,501 | 11,458 | 11,279 | 11,219 | 11,135 | 11,003 | 10,883 | 10,950 | 11,022 | 10,993 | 10,967 | 10,957 | 10,833 | 10,872 | 10,832 | 10,865 | 10,994 | 10,880 | 10,939 | 10,912 | 10,968 | 10,885 | 10,798 | 10,837 | 10,667 | 10,591 | 10,568 | 10,495 | 10,426 | 10,305 | 10,704 | 10,818 | 10,872 | 10,857 | 10,851 | 10,681 | 10,652 | 10,574 | 10,541 | 10,524 | 10,400 | 10,328 | 10,287 | 10,246 | 10,172 | 10,152 | 10,079 | 10,089 | 10,117 | 10,170 | 10,141 | 10,246 | 10,068 | 10,017 | 10,000 |
| DWS Index: Bloomberg Municipal Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg Municipal Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 12,548 | 12,734 | 12,609 | 12,510 | 12,397 | 12,210 | 12,246 | 12,400 | 12,400 | 12,384 | 12,448 | 12,165 | 11,439 | 11,537 | 11,885 | 12,059 | 12,012 | 11,892 | 11,996 | 12,024 | 11,763 | 12,035 | 11,699 | 11,666 | 11,144 | 11,238 | 11,686 | 11,948 | 11,641 | 11,834 | 11,661 | 11,993 | 12,395 | 12,439 | 12,789 | 12,769 | 12,661 | 12,698 | 12,790 | 12,838 | 12,732 | 12,697 | 12,659 | 12,554 | 12,477 | 12,678 | 12,598 | 12,522 | 12,336 | 12,373 | 12,370 | 12,429 | 12,223 | 12,123 | 11,749 | 11,899 | 12,346 | 12,189 | 11,974 | 11,938 | 11,908 | 11,887 | 11,983 | 11,797 | 11,702 | 11,659 | 11,501 | 11,458 | 11,279 | 11,219 | 11,135 | 11,003 | 10,883 | 10,950 | 11,022 | 10,993 | 10,967 | 10,957 | 10,833 | 10,872 | 10,832 | 10,865 | 10,994 | 10,880 | 10,939 | 10,912 | 10,968 | 10,885 | 10,798 | 10,837 | 10,667 | 10,591 | 10,568 | 10,495 | 10,426 | 10,305 | 10,704 | 10,818 | 10,872 | 10,857 | 10,851 | 10,681 | 10,652 | 10,574 | 10,541 | 10,524 | 10,400 | 10,328 | 10,287 | 10,246 | 10,172 | 10,152 | 10,079 | 10,089 | 10,117 | 10,170 | 10,141 | 10,246 | 10,068 | 10,017 | 10,000 |
| DWS Index: Bloomberg Municipal Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg Municipal Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 12,548 | 12,734 | 12,609 | 12,510 | 12,397 | 12,210 | 12,246 | 12,400 | 12,400 | 12,384 | 12,448 | 12,165 | 11,439 | 11,537 | 11,885 | 12,059 | 12,012 | 11,892 | 11,996 | 12,024 | 11,763 | 12,035 | 11,699 | 11,666 | 11,144 | 11,238 | 11,686 | 11,948 | 11,641 | 11,834 | 11,661 | 11,993 | 12,395 | 12,439 | 12,789 | 12,769 | 12,661 | 12,698 | 12,790 | 12,838 | 12,732 | 12,697 | 12,659 | 12,554 | 12,477 | 12,678 | 12,598 | 12,522 | 12,336 | 12,373 | 12,370 | 12,429 | 12,223 | 12,123 | 11,749 | 11,899 | 12,346 | 12,189 | 11,974 | 11,938 | 11,908 | 11,887 | 11,983 | 11,797 | 11,702 | 11,659 | 11,501 | 11,458 | 11,279 | 11,219 | 11,135 | 11,003 | 10,883 | 10,950 | 11,022 | 10,993 | 10,967 | 10,957 | 10,833 | 10,872 | 10,832 | 10,865 | 10,994 | 10,880 | 10,939 | 10,912 | 10,968 | 10,885 | 10,798 | 10,837 | 10,667 | 10,591 | 10,568 | 10,495 | 10,426 | 10,305 | 10,704 | 10,818 | 10,872 | 10,857 | 10,851 | 10,681 | 10,652 | 10,574 | 10,541 | 10,524 | 10,400 | 10,328 | 10,287 | 10,246 | 10,172 | 10,152 | 10,079 | 10,089 | 10,117 | 10,170 | 10,141 | 10,246 | 10,068 | 10,017 | 10,000 |
| DWS Index: Bloomberg Municipal Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg Municipal Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 1,254,809 | 1,273,376 | 1,260,914 | 1,251,047 | 1,239,747 | 1,221,031 | 1,224,623 | 1,239,980 | 1,240,019 | 1,238,428 | 1,244,785 | 1,216,511 | 1,143,895 | 1,153,713 | 1,188,548 | 1,205,909 | 1,201,157 | 1,189,244 | 1,199,640 | 1,202,387 | 1,176,288 | 1,203,502 | 1,169,897 | 1,166,557 | 1,114,431 | 1,123,777 | 1,168,630 | 1,194,816 | 1,164,059 | 1,183,442 | 1,166,119 | 1,199,291 | 1,239,471 | 1,243,928 | 1,278,936 | 1,276,876 | 1,266,098 | 1,269,811 | 1,279,041 | 1,283,752 | 1,273,193 | 1,269,707 | 1,265,930 | 1,255,400 | 1,247,705 | 1,267,849 | 1,259,821 | 1,252,193 | 1,233,577 | 1,237,294 | 1,237,032 | 1,242,863 | 1,222,277 | 1,212,299 | 1,174,923 | 1,189,856 | 1,234,640 | 1,218,921 | 1,197,408 | 1,193,763 | 1,190,785 | 1,188,655 | 1,198,260 | 1,179,653 | 1,170,222 | 1,165,917 | 1,150,062 | 1,145,756 | 1,127,926 | 1,121,919 | 1,113,502 | 1,100,327 | 1,088,282 | 1,095,025 | 1,102,160 | 1,099,337 | 1,096,676 | 1,095,741 | 1,083,336 | 1,087,216 | 1,083,218 | 1,086,464 | 1,099,407 | 1,088,035 | 1,093,892 | 1,091,228 | 1,096,804 | 1,088,520 | 1,079,784 | 1,083,671 | 1,066,741 | 1,059,056 | 1,056,762 | 1,049,475 | 1,042,601 | 1,030,503 | 1,070,425 | 1,081,774 | 1,087,200 | 1,085,735 | 1,085,072 | 1,068,080 | 1,065,199 | 1,057,424 | 1,054,085 | 1,052,430 | 1,040,021 | 1,032,765 | 1,028,675 | 1,024,601 | 1,017,232 | 1,015,238 | 1,007,937 | 1,008,856 | 1,011,651 | 1,016,987 | 1,014,059 | 1,024,628 | 1,006,784 | 1,001,730 | 1,000,000 |
| DWS Index: Bloomberg 1-Year General Obligation Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg 1-Year General Obligation Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,302 | 11,339 | 11,302 | 11,230 | 11,159 | 11,097 | 11,071 | 11,072 | 11,077 | 11,060 | 11,068 | 11,001 | 10,845 | 10,817 | 10,862 | 10,851 | 10,830 | 10,782 | 10,794 | 10,827 | 10,708 | 10,807 | 10,713 | 10,718 | 10,597 | 10,580 | 10,675 | 10,763 | 10,703 | 10,699 | 10,622 | 10,662 | 10,750 | 10,764 | 10,838 | 10,838 | 10,835 | 10,837 | 10,852 | 10,854 | 10,840 | 10,842 | 10,837 | 10,828 | 10,820 | 10,826 | 10,805 | 10,792 | 10,777 | 10,786 | 10,779 | 10,778 | 10,752 | 10,751 | 10,637 | 10,621 | 10,676 | 10,655 | 10,615 | 10,598 | 10,580 | 10,549 | 10,570 | 10,555 | 10,524 | 10,492 | 10,452 | 10,445 | 10,417 | 10,394 | 10,360 | 10,321 | 10,287 | 10,279 | 10,299 | 10,303 | 10,280 | 10,244 | 10,209 | 10,219 | 10,225 | 10,210 | 10,179 | 10,172 | 10,223 | 10,221 | 10,234 | 10,214 | 10,184 | 10,196 | 10,178 | 10,161 | 10,158 | 10,127 | 10,087 | 10,065 | 10,115 | 10,110 | 10,130 | 10,148 | 10,130 | 10,114 | 10,110 | 10,097 | 10,113 | 10,098 | 10,063 | 10,068 | 10,079 | 10,068 | 10,056 | 10,039 | 10,024 | 10,022 | 10,025 | 10,023 | 10,024 | 10,021 | 10,000 | 10,007 | 10,000 |
| DWS Index: Bloomberg 3-Year (2-4) Municipal Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg 3-Year (2-4) Municipal Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,397 | 11,462 | 11,402 | 11,291 | 11,195 | 11,106 | 11,112 | 11,154 | 11,174 | 11,161 | 11,185 | 11,080 | 10,810 | 10,796 | 10,904 | 10,933 | 10,908 | 10,841 | 10,905 | 10,957 | 10,790 | 10,960 | 10,811 | 10,794 | 10,586 | 10,590 | 10,783 | 10,928 | 10,804 | 10,815 | 10,685 | 10,793 | 10,975 | 11,006 | 11,191 | 11,187 | 11,184 | 11,201 | 11,225 | 11,229 | 11,192 | 11,191 | 11,188 | 11,162 | 11,132 | 11,173 | 11,146 | 11,122 | 11,090 | 11,109 | 11,096 | 11,097 | 11,031 | 11,010 | 10,799 | 10,785 | 10,935 | 10,897 | 10,824 | 10,803 | 10,778 | 10,731 | 10,786 | 10,758 | 10,698 | 10,649 | 10,580 | 10,580 | 10,534 | 10,500 | 10,441 | 10,373 | 10,320 | 10,326 | 10,368 | 10,372 | 10,338 | 10,297 | 10,241 | 10,272 | 10,279 | 10,275 | 10,260 | 10,237 | 10,337 | 10,340 | 10,375 | 10,331 | 10,285 | 10,317 | 10,261 | 10,231 | 10,233 | 10,175 | 10,102 | 10,074 | 10,204 | 10,216 | 10,258 | 10,271 | 10,242 | 10,189 | 10,198 | 10,172 | 10,198 | 10,159 | 10,095 | 10,100 | 10,121 | 10,096 | 10,060 | 10,049 | 10,016 | 9,993 | 10,013 | 10,017 | 10,020 | 10,041 | 9,977 | 10,006 | 10,000 |
| DWS Index: Bloomberg 1-Year General Obligation Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg 1-Year General Obligation Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,302 | 11,339 | 11,302 | 11,230 | 11,159 | 11,097 | 11,071 | 11,072 | 11,077 | 11,060 | 11,068 | 11,001 | 10,845 | 10,817 | 10,862 | 10,851 | 10,830 | 10,782 | 10,794 | 10,827 | 10,708 | 10,807 | 10,713 | 10,718 | 10,597 | 10,580 | 10,675 | 10,763 | 10,703 | 10,699 | 10,622 | 10,662 | 10,750 | 10,764 | 10,838 | 10,838 | 10,835 | 10,837 | 10,852 | 10,854 | 10,840 | 10,842 | 10,837 | 10,828 | 10,820 | 10,826 | 10,805 | 10,792 | 10,777 | 10,786 | 10,779 | 10,778 | 10,752 | 10,751 | 10,637 | 10,621 | 10,676 | 10,655 | 10,615 | 10,598 | 10,580 | 10,549 | 10,570 | 10,555 | 10,524 | 10,492 | 10,452 | 10,445 | 10,417 | 10,394 | 10,360 | 10,321 | 10,287 | 10,279 | 10,299 | 10,303 | 10,280 | 10,244 | 10,209 | 10,219 | 10,225 | 10,210 | 10,179 | 10,172 | 10,223 | 10,221 | 10,234 | 10,214 | 10,184 | 10,196 | 10,178 | 10,161 | 10,158 | 10,127 | 10,087 | 10,065 | 10,115 | 10,110 | 10,130 | 10,148 | 10,130 | 10,114 | 10,110 | 10,097 | 10,113 | 10,098 | 10,063 | 10,068 | 10,079 | 10,068 | 10,056 | 10,039 | 10,024 | 10,022 | 10,025 | 10,023 | 10,024 | 10,021 | 10,000 | 10,007 | 10,000 |
| DWS Index: Bloomberg 3-Year (2-4) Municipal Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg 3-Year (2-4) Municipal Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,397 | 11,462 | 11,402 | 11,291 | 11,195 | 11,106 | 11,112 | 11,154 | 11,174 | 11,161 | 11,185 | 11,080 | 10,810 | 10,796 | 10,904 | 10,933 | 10,908 | 10,841 | 10,905 | 10,957 | 10,790 | 10,960 | 10,811 | 10,794 | 10,586 | 10,590 | 10,783 | 10,928 | 10,804 | 10,815 | 10,685 | 10,793 | 10,975 | 11,006 | 11,191 | 11,187 | 11,184 | 11,201 | 11,225 | 11,229 | 11,192 | 11,191 | 11,188 | 11,162 | 11,132 | 11,173 | 11,146 | 11,122 | 11,090 | 11,109 | 11,096 | 11,097 | 11,031 | 11,010 | 10,799 | 10,785 | 10,935 | 10,897 | 10,824 | 10,803 | 10,778 | 10,731 | 10,786 | 10,758 | 10,698 | 10,649 | 10,580 | 10,580 | 10,534 | 10,500 | 10,441 | 10,373 | 10,320 | 10,326 | 10,368 | 10,372 | 10,338 | 10,297 | 10,241 | 10,272 | 10,279 | 10,275 | 10,260 | 10,237 | 10,337 | 10,340 | 10,375 | 10,331 | 10,285 | 10,317 | 10,261 | 10,231 | 10,233 | 10,175 | 10,102 | 10,074 | 10,204 | 10,216 | 10,258 | 10,271 | 10,242 | 10,189 | 10,198 | 10,172 | 10,198 | 10,159 | 10,095 | 10,100 | 10,121 | 10,096 | 10,060 | 10,049 | 10,016 | 9,993 | 10,013 | 10,017 | 10,020 | 10,041 | 9,977 | 10,006 | 10,000 |
| DWS Index: Bloomberg 1-Year General Obligation Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg 1-Year General Obligation Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,302 | 11,339 | 11,302 | 11,230 | 11,159 | 11,097 | 11,071 | 11,072 | 11,077 | 11,060 | 11,068 | 11,001 | 10,845 | 10,817 | 10,862 | 10,851 | 10,830 | 10,782 | 10,794 | 10,827 | 10,708 | 10,807 | 10,713 | 10,718 | 10,597 | 10,580 | 10,675 | 10,763 | 10,703 | 10,699 | 10,622 | 10,662 | 10,750 | 10,764 | 10,838 | 10,838 | 10,835 | 10,837 | 10,852 | 10,854 | 10,840 | 10,842 | 10,837 | 10,828 | 10,820 | 10,826 | 10,805 | 10,792 | 10,777 | 10,786 | 10,779 | 10,778 | 10,752 | 10,751 | 10,637 | 10,621 | 10,676 | 10,655 | 10,615 | 10,598 | 10,580 | 10,549 | 10,570 | 10,555 | 10,524 | 10,492 | 10,452 | 10,445 | 10,417 | 10,394 | 10,360 | 10,321 | 10,287 | 10,279 | 10,299 | 10,303 | 10,280 | 10,244 | 10,209 | 10,219 | 10,225 | 10,210 | 10,179 | 10,172 | 10,223 | 10,221 | 10,234 | 10,214 | 10,184 | 10,196 | 10,178 | 10,161 | 10,158 | 10,127 | 10,087 | 10,065 | 10,115 | 10,110 | 10,130 | 10,148 | 10,130 | 10,114 | 10,110 | 10,097 | 10,113 | 10,098 | 10,063 | 10,068 | 10,079 | 10,068 | 10,056 | 10,039 | 10,024 | 10,022 | 10,025 | 10,023 | 10,024 | 10,021 | 10,000 | 10,007 | 10,000 |
| DWS Index: Bloomberg 3-Year (2-4) Municipal Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg 3-Year (2-4) Municipal Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 11,397 | 11,462 | 11,402 | 11,291 | 11,195 | 11,106 | 11,112 | 11,154 | 11,174 | 11,161 | 11,185 | 11,080 | 10,810 | 10,796 | 10,904 | 10,933 | 10,908 | 10,841 | 10,905 | 10,957 | 10,790 | 10,960 | 10,811 | 10,794 | 10,586 | 10,590 | 10,783 | 10,928 | 10,804 | 10,815 | 10,685 | 10,793 | 10,975 | 11,006 | 11,191 | 11,187 | 11,184 | 11,201 | 11,225 | 11,229 | 11,192 | 11,191 | 11,188 | 11,162 | 11,132 | 11,173 | 11,146 | 11,122 | 11,090 | 11,109 | 11,096 | 11,097 | 11,031 | 11,010 | 10,799 | 10,785 | 10,935 | 10,897 | 10,824 | 10,803 | 10,778 | 10,731 | 10,786 | 10,758 | 10,698 | 10,649 | 10,580 | 10,580 | 10,534 | 10,500 | 10,441 | 10,373 | 10,320 | 10,326 | 10,368 | 10,372 | 10,338 | 10,297 | 10,241 | 10,272 | 10,279 | 10,275 | 10,260 | 10,237 | 10,337 | 10,340 | 10,375 | 10,331 | 10,285 | 10,317 | 10,261 | 10,231 | 10,233 | 10,175 | 10,102 | 10,074 | 10,204 | 10,216 | 10,258 | 10,271 | 10,242 | 10,189 | 10,198 | 10,172 | 10,198 | 10,159 | 10,095 | 10,100 | 10,121 | 10,096 | 10,060 | 10,049 | 10,016 | 9,993 | 10,013 | 10,017 | 10,020 | 10,041 | 9,977 | 10,006 | 10,000 |
| DWS Index: Bloomberg 1-Year General Obligation Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg 1-Year General Obligation Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 1,130,196 | 1,133,883 | 1,130,184 | 1,123,034 | 1,115,872 | 1,109,740 | 1,107,059 | 1,107,182 | 1,107,746 | 1,106,043 | 1,106,754 | 1,100,149 | 1,084,488 | 1,081,672 | 1,086,169 | 1,085,140 | 1,082,986 | 1,078,178 | 1,079,387 | 1,082,688 | 1,070,791 | 1,080,695 | 1,071,342 | 1,071,761 | 1,059,705 | 1,058,006 | 1,067,523 | 1,076,315 | 1,070,279 | 1,069,882 | 1,062,173 | 1,066,157 | 1,074,952 | 1,076,378 | 1,083,765 | 1,083,801 | 1,083,502 | 1,083,718 | 1,085,159 | 1,085,434 | 1,083,985 | 1,084,178 | 1,083,727 | 1,082,821 | 1,082,011 | 1,082,619 | 1,080,541 | 1,079,174 | 1,077,654 | 1,078,623 | 1,077,871 | 1,077,779 | 1,075,245 | 1,075,106 | 1,063,737 | 1,062,116 | 1,067,604 | 1,065,456 | 1,061,533 | 1,059,829 | 1,057,997 | 1,054,871 | 1,057,010 | 1,055,512 | 1,052,359 | 1,049,242 | 1,045,232 | 1,044,523 | 1,041,684 | 1,039,358 | 1,036,047 | 1,032,070 | 1,028,676 | 1,027,900 | 1,029,921 | 1,030,263 | 1,027,983 | 1,024,439 | 1,020,903 | 1,021,879 | 1,022,498 | 1,021,016 | 1,017,856 | 1,017,223 | 1,022,270 | 1,022,147 | 1,023,394 | 1,021,387 | 1,018,392 | 1,019,638 | 1,017,754 | 1,016,112 | 1,015,822 | 1,012,657 | 1,008,720 | 1,006,524 | 1,011,501 | 1,010,959 | 1,013,000 | 1,014,831 | 1,012,999 | 1,011,367 | 1,010,971 | 1,009,670 | 1,011,282 | 1,009,775 | 1,006,306 | 1,006,753 | 1,007,861 | 1,006,781 | 1,005,606 | 1,003,933 | 1,002,355 | 1,002,172 | 1,002,485 | 1,002,314 | 1,002,402 | 1,002,083 | 999,997 | 1,000,675 | 1,000,000 |
| DWS Index: Bloomberg 3-Year (2-4) Municipal Bond Index | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg 3-Year (2-4) Municipal Bond Index | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Account Value | $ 1,139,656 | $ 1,146,180 | $ 1,140,199 | $ 1,129,131 | $ 1,119,465 | $ 1,110,590 | $ 1,111,232 | $ 1,115,449 | $ 1,117,354 | $ 1,116,124 | $ 1,118,532 | $ 1,107,950 | $ 1,080,967 | $ 1,079,589 | $ 1,090,376 | $ 1,093,274 | $ 1,090,773 | $ 1,084,084 | $ 1,090,508 | $ 1,095,706 | $ 1,079,017 | $ 1,096,013 | $ 1,081,079 | $ 1,079,357 | $ 1,058,649 | $ 1,059,006 | $ 1,078,298 | $ 1,092,757 | $ 1,080,416 | $ 1,081,465 | $ 1,068,497 | $ 1,079,256 | $ 1,097,499 | $ 1,100,582 | $ 1,119,064 | $ 1,118,722 | $ 1,118,441 | $ 1,120,138 | $ 1,122,547 | $ 1,122,934 | $ 1,119,171 | $ 1,119,094 | $ 1,118,822 | $ 1,116,189 | $ 1,113,214 | $ 1,117,284 | $ 1,114,551 | $ 1,112,238 | $ 1,109,033 | $ 1,110,936 | $ 1,109,582 | $ 1,109,740 | $ 1,103,114 | $ 1,100,975 | $ 1,079,902 | $ 1,078,471 | $ 1,093,463 | $ 1,089,652 | $ 1,082,436 | $ 1,080,288 | $ 1,077,784 | $ 1,073,071 | $ 1,078,567 | $ 1,075,840 | $ 1,069,773 | $ 1,064,884 | $ 1,058,010 | $ 1,058,019 | $ 1,053,365 | $ 1,049,974 | $ 1,044,091 | $ 1,037,285 | $ 1,032,011 | $ 1,032,611 | $ 1,036,827 | $ 1,037,163 | $ 1,033,807 | $ 1,029,730 | $ 1,024,137 | $ 1,027,186 | $ 1,027,946 | $ 1,027,536 | $ 1,026,029 | $ 1,023,749 | $ 1,033,704 | $ 1,033,991 | $ 1,037,454 | $ 1,033,067 | $ 1,028,540 | $ 1,031,660 | $ 1,026,116 | $ 1,023,054 | $ 1,023,331 | $ 1,017,466 | $ 1,010,245 | $ 1,007,411 | $ 1,020,442 | $ 1,021,569 | $ 1,025,781 | $ 1,027,127 | $ 1,024,178 | $ 1,018,879 | $ 1,019,763 | $ 1,017,214 | $ 1,019,763 | $ 1,015,866 | $ 1,009,475 | $ 1,010,038 | $ 1,012,130 | $ 1,009,607 | $ 1,006,034 | $ 1,004,931 | $ 1,001,573 | $ 999,253 | $ 1,001,338 | $ 1,001,748 | $ 1,001,976 | $ 1,004,115 | $ 997,688 | $ 1,000,623 | $ 1,000,000 |
| Shareholder Report, Average Annual Return (Details) | 12 Months Ended | 60 Months Ended | 120 Months Ended |
| Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | |
| C000096616 | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Class A | ||
| Average Annual Return, Percent | 3.12% | 0.80% | 0.95% |
| C000096618 | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Class C | ||
| Average Annual Return, Percent | 3.71% | 0.49% | 0.42% |
| C000096619 | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Class S | ||
| C000096620 | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Institutional Class | ||
| Without Sales Load [Member] | C000096616 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 5.49% | 1.26% | 1.18% |
| Without Sales Load [Member] | C000096618 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 4.71% | 0.49% | 0.42% |
| Without Sales Load [Member] | C000096619 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 5.70% | 1.42% | 1.33% |
| Without Sales Load [Member] | C000096620 | |||
| Average Annual Return [Line Items] | |||
| Average Annual Return, Percent | 5.76% | 1.51% | 1.44% |
| DWS Index: Bloomberg Municipal Bond Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg Municipal Bond Index | ||
| Average Annual Return, Percent | 9.70% | 1.05% | 2.30% |
| DWS Index: Bloomberg Municipal Bond Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg Municipal Bond Index | ||
| Average Annual Return, Percent | 9.70% | 1.05% | 2.30% |
| DWS Index: Bloomberg Municipal Bond Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg Municipal Bond Index | ||
| Average Annual Return, Percent | 9.70% | 1.05% | 2.30% |
| DWS Index: Bloomberg Municipal Bond Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg Municipal Bond Index | ||
| Average Annual Return, Percent | 9.70% | 1.05% | 2.30% |
| DWS Index: Bloomberg 1-Year General Obligation Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg 1-Year General Obligation Index | ||
| Average Annual Return, Percent | 4.21% | 1.33% | 1.23% |
| DWS Index: Bloomberg 3-Year (2-4) Municipal Bond Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg 3-Year (2-4) Municipal Bond Index | ||
| Average Annual Return, Percent | 5.43% | 1.12% | 1.32% |
| DWS Index: Bloomberg 1-Year General Obligation Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg 1-Year General Obligation Index | ||
| Average Annual Return, Percent | 4.21% | 1.33% | 1.23% |
| DWS Index: Bloomberg 3-Year (2-4) Municipal Bond Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg 3-Year (2-4) Municipal Bond Index | ||
| Average Annual Return, Percent | 5.43% | 1.12% | 1.32% |
| DWS Index: Bloomberg 1-Year General Obligation Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg 1-Year General Obligation Index | ||
| Average Annual Return, Percent | 4.21% | 1.33% | 1.23% |
| DWS Index: Bloomberg 3-Year (2-4) Municipal Bond Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg 3-Year (2-4) Municipal Bond Index | ||
| Average Annual Return, Percent | 5.43% | 1.12% | 1.32% |
| DWS Index: Bloomberg 1-Year General Obligation Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg 1-Year General Obligation Index | ||
| Average Annual Return, Percent | 4.21% | 1.33% | 1.23% |
| DWS Index: Bloomberg 3-Year (2-4) Municipal Bond Index | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Bloomberg 3-Year (2-4) Municipal Bond Index | ||
| Average Annual Return, Percent | 5.43% | 1.12% | 1.32% |
| Shareholder Report, Holdings (Details) | Oct. 31, 2024 |
| C000096616 | Texas | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.60% |
| C000096616 | New York | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.20% |
| C000096616 | Pennsylvania | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.80% |
| C000096616 | Michigan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.70% |
| C000096616 | California | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.10% |
| C000096616 | Credit Rating Other Line | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| C000096616 | AAA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16% |
| C000096616 | AA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 44% |
| C000096616 | A | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 28% |
| C000096616 | BBB | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10% |
| C000096616 | BB | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000096616 | Revenue Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 86% |
| C000096616 | General Obligation Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11% |
| C000096616 | Lease Obligations | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6% |
| C000096616 | Variable Rate Demand Notes | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000096616 | Other Assets and Liabilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (5.00%) |
| C000096618 | Texas | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.60% |
| C000096618 | New York | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.20% |
| C000096618 | Pennsylvania | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.80% |
| C000096618 | Michigan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.70% |
| C000096618 | California | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.10% |
| C000096618 | Credit Rating Other Line | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| C000096618 | AAA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16% |
| C000096618 | AA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 44% |
| C000096618 | A | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 28% |
| C000096618 | BBB | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10% |
| C000096618 | BB | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000096618 | Revenue Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 86% |
| C000096618 | General Obligation Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11% |
| C000096618 | Lease Obligations | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6% |
| C000096618 | Variable Rate Demand Notes | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000096618 | Other Assets and Liabilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (5.00%) |
| C000096619 | Texas | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.60% |
| C000096619 | New York | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.20% |
| C000096619 | Pennsylvania | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.80% |
| C000096619 | Michigan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.70% |
| C000096619 | California | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.10% |
| C000096619 | Credit Rating Other Line | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| C000096619 | AAA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16% |
| C000096619 | AA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 44% |
| C000096619 | A | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 28% |
| C000096619 | BBB | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10% |
| C000096619 | BB | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000096619 | Revenue Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 86% |
| C000096619 | General Obligation Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11% |
| C000096619 | Lease Obligations | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6% |
| C000096619 | Variable Rate Demand Notes | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000096619 | Other Assets and Liabilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (5.00%) |
| C000096620 | Texas | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.60% |
| C000096620 | New York | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.20% |
| C000096620 | Pennsylvania | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.80% |
| C000096620 | Michigan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.70% |
| C000096620 | California | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.10% |
| C000096620 | Credit Rating Other Line | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| C000096620 | AAA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16% |
| C000096620 | AA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 44% |
| C000096620 | A | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 28% |
| C000096620 | BBB | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10% |
| C000096620 | BB | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000096620 | Revenue Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 86% |
| C000096620 | General Obligation Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11% |
| C000096620 | Lease Obligations | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6% |
| C000096620 | Variable Rate Demand Notes | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000096620 | Other Assets and Liabilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (5.00%) |
