S000016628 [Member] Fees and Expenses - Western Asset Managed Municipals Fund |
Feb. 28, 2025
USD ($)
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| Prospectus [Line Items] | ||||||||||
| Expense Heading [Optional Text] | Fees and expenses of the fund | |||||||||
| Expense Narrative [Text Block] | The accompanying table describes the fees and expenses that you may pay if you buy, hold and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in certain funds distributed through Franklin Distributors, LLC (“Franklin Distributors” or the “Distributor”), the fund’s distributor. More information about these and other discounts is available from your Service Agent, in the fund’s Prospectus on page 26 under the heading “Additional information about each share class,” in the appendix titled “Appendix: Waivers and Discounts Available from Certain Service Agents” on page A-1 of the fund’s Prospectus and in the fund’s Statement of Additional Information (“SAI”) on page 86 under the heading “Sales Charge Waivers and Reductions for Class A Shares.” “Service Agents” include banks, brokers, dealers, insurance companies, investment advisers, financial consultants or advisers, mutual fund supermarkets and other financial intermediaries that have entered into an agreement with the Distributor to sell shares of the fund. If you purchase Class I shares or Class IS shares through a Service Agent acting solely as an agent on behalf of its customers, that Service Agent may charge you a commission. Such commissions, if any, are not charged by the fund and are not reflected in the fee table or expense example below.
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| Expense Breakpoint Discounts [Text] | You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in certain funds distributed through Franklin Distributors, LLC (“Franklin Distributors” or the “Distributor”), the fund’s distributor. | |||||||||
| Expense Breakpoint, Minimum Investment Required [Amount] | $ 100,000 | |||||||||
| Other Expenses, New Fund, Based on Estimates [Text] | Other expenses for Class FI shares are estimated for the current fiscal year. Actual expenses may differ from estimates. | |||||||||
| Shareholder Fees Caption [Optional Text] | Shareholder fees(fees paid directly from your investment) | |||||||||
| Operating Expenses Caption [Optional Text] | Annual fund operating expenses (%)(expenses that you pay each year as a percentage of the value of your investment) | |||||||||
| Expenses Deferred Charges [Text Block] | You may buy Class A shares in amounts of $250,000 or more at net asset value (without an initial sales charge), but if you redeem those shares within 18 months of their purchase, you will pay a contingent deferred sales charge of 1.00%. | |||||||||
| Expense Example [Heading] | Example | |||||||||
| Expense Example Narrative [Text Block] | This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes:
Although your actual costs may be higher or lower, based on these assumptions your costs would be:
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| Expense Example by, Year, Caption [Text] | Number of years you own your shares ($) | |||||||||
| Expense Example, No Redemption, By Year, Caption [Text] | Number of years you own your shares ($) | |||||||||
| Portfolio Turnover [Heading] | Portfolio turnover. | |||||||||
| Portfolio Turnover [Text Block] | The fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the fund’s performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 16% of the average value of its portfolio. | |||||||||
| Portfolio Turnover, Rate | 16.00% |