| Form N-CSR Cover | 12 Months Ended |
| Dec. 31, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | Legg Mason Partners Investment Trust |
| Entity Central Index Key | 0000880366 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Dec. 31, 2024 |
| Shareholder Report | 12 Months Ended | |
| Dec. 31, 2024 USD ($) $ / shares | ||
| Shareholder Report [Line Items] | ||
| Document Type | N-CSR | |
| Amendment Flag | false | |
| Registrant Name | Legg Mason Partners Investment Trust | |
| Entity Central Index Key | 0000880366 | |
| Entity Investment Company Type | N-1A | |
| Document Period End Date | Dec. 31, 2024 | |
| Class A | ||
| Shareholder Report [Line Items] | ||
| Fund Name | BrandywineGLOBAL - Corporate Credit Fund | |
| Class Name | Class A | |
| Trading Symbol | BCAAX | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BrandywineGLOBAL - Corporate Credit Fund for the period January 1, 2024, to December 31, 2024. | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-fund-documents . You can also request this information by contacting us at 877-6LM-FUND/656-3863 . | |
| Additional Information Phone Number | 877-6LM-FUND/656-3863 | |
| Additional Information Website | https://www.franklintempleton.com/regulatory-fund-documents | |
| 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 $85 0.81% | [1] |
| Expenses Paid, Amount | $ 85 | |
| Expense Ratio, Percent | 0.81% | |
| Factors Affecting Performance [Text Block] | HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE? For the twelve months ended December 31, 2024, Class A shares of BrandywineGLOBAL - Corporate Credit Fund returned 8.73%. The Fund compares its performance to the ICE BofA U.S. Corporate & High Yield Index and the Consumer Price Index (CPI) plus 3% annual risk premium, which returned 3.47% and 5.97%, respectively, for the same period. PERFORMANCE HIGHLIGHTS Top contributors to performance: ↑ Selection in financial services, focused on non-bank issuers, with an overweight allocation relative to the index. ↑ Selection in energy and consumer goods, driven by active involvement with management around corporate restructuring and consolidation. ↑ Relative underweight duration position during a period where treasury yields rose significantly. Top detractors from performance: ↓ Negative selection in the leisure sector related to idiosyncratic risks in gaming. ↓ Negative selection in telecommunications as some issuers deal with near-term stresses. ↓ Selection within CCC & below rated credits, as the Fund did not own credits in the lowest decile portion of the high yield market, which was the strongest performing credit segment. | |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. | |
| Line Graph [Table Text Block] | ||
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended December 31, 2024 1 Year 5 Year 10 Year Class A 8.73 5.06 5.84 Class A (with sales charge) 4.64 4.31 5.46 Bloomberg U.S. Aggregate Index 1.25 -0.33 1.35 ICE BofA U.S. Corporate & High Yield Index 3.47 1.01 2.93 Consumer Price Index (CPI) plus 3% annual risk premium 5.97 7.31 6.08 | |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. | |
| Updated Performance Information Location [Text Block] | For current month-end performance, please call Franklin Templeton at 877-6LM-FUND/656-3863 or visit https://www.franklintempleton.com/investments/options/mutual-funds . Important data provider notices and terms available at www.franklintempletondatasources.com. | |
| Net Assets | $ 2,240,412,469 | |
| Holdings Count | $ / shares | 192 | [2] |
| Advisory Fees Paid, Amount | $ 8,597,365 | |
| Investment Company Portfolio Turnover | 105% | |
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of December 31, 2024) Total Net Assets $2,240,412,469 Total Number of Portfolio Holdings * 192 Total Management Fee Paid $8,597,365 Portfolio Turnover Rate 105% | [2] |
| Holdings [Text Block] | ||
| Updated Prospectus Web Address | https://www.franklintempleton.com/regulatory-fund-documents | |
| Class C | ||
| Shareholder Report [Line Items] | ||
| Fund Name | BrandywineGLOBAL - Corporate Credit Fund | |
| Class Name | Class C | |
| Trading Symbol | BGGCX | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BrandywineGLOBAL - Corporate Credit Fund for the period January 1, 2024, to December 31, 2024. | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-fund-documents . You can also request this information by contacting us at 877-6LM-FUND/656-3863 . | |
| Additional Information Phone Number | 877-6LM-FUND/656-3863 | |
| Additional Information Website | https://www.franklintempleton.com/regulatory-fund-documents | |
| 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 $161 1.55% | [3] |
| Expenses Paid, Amount | $ 161 | |
| Expense Ratio, Percent | 1.55% | |
| Factors Affecting Performance [Text Block] | HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE? For the twelve months ended December 31, 2024, Class C shares of BrandywineGLOBAL - Corporate Credit Fund returned 7.94%. The Fund compares its performance to the ICE BofA U.S. Corporate & High Yield Index and the Consumer Price Index (CPI) plus 3% annual risk premium, which returned 3.47% and 5.97%, respectively, for the same period. PERFORMANCE HIGHLIGHTS Top contributors to performance: ↑ Selection in financial services, focused on non-bank issuers, with an overweight allocation relative to the index. ↑ Selection in energy and consumer goods, driven by active involvement with management around corporate restructuring and consolidation. ↑ Relative underweight duration position during a period where treasury yields rose significantly. Top detractors from performance: ↓ Negative selection in the leisure sector related to idiosyncratic risks in gaming. ↓ Negative selection in telecommunications as some issuers deal with near-term stresses. ↓ Selection within CCC & below rated credits, as the Fund did not own credits in the lowest decile portion of the high yield market, which was the strongest performing credit segment. | |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. | |
| Line Graph [Table Text Block] | ||
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended December 31, 2024 1 Year Since Inception (8/2/2021) Class C 7.94 2.99 Class C (with sales charge) 6.94 2.99 Bloomberg U.S. Aggregate Index 1.25 -2.49 ICE BofA U.S. Corporate & High Yield Index 3.47 -1.43 Consumer Price Index (CPI) plus 3% annual risk premium 5.97 7.45 | |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. | |
| Updated Performance Information Location [Text Block] | For current month-end performance, please call Franklin Templeton at 877-6LM-FUND/656-3863 or visit https://www.franklintempleton.com/investments/options/mutual-funds . Important data provider notices and terms available at www.franklintempletondatasources.com. | |
| Net Assets | $ 2,240,412,469 | |
| Holdings Count | $ / shares | 192 | [4] |
| Advisory Fees Paid, Amount | $ 8,597,365 | |
| Investment Company Portfolio Turnover | 105% | |
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of December 31, 2024) Total Net Assets $2,240,412,469 Total Number of Portfolio Holdings * 192 Total Management Fee Paid $8,597,365 Portfolio Turnover Rate 105% | [4] |
| Holdings [Text Block] | ||
| Updated Prospectus Web Address | https://www.franklintempleton.com/regulatory-fund-documents | |
| Class I | ||
| Shareholder Report [Line Items] | ||
| Fund Name | BrandywineGLOBAL - Corporate Credit Fund | |
| Class Name | Class I | |
| Trading Symbol | BCGIX | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BrandywineGLOBAL - Corporate Credit Fund for the period January 1, 2024, to December 31, 2024. | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-fund-documents . You can also request this information by contacting us at 877-6LM-FUND/656-3863 . | |
| Additional Information Phone Number | 877-6LM-FUND/656-3863 | |
| Additional Information Website | https://www.franklintempleton.com/regulatory-fund-documents | |
| 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 $61 0.58% | [5] |
| Expenses Paid, Amount | $ 61 | |
| Expense Ratio, Percent | 0.58% | |
| Factors Affecting Performance [Text Block] | HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE? For the twelve months ended December 31, 2024, Class I shares of BrandywineGLOBAL - Corporate Credit Fund returned 8.99%. The Fund compares its performance to the ICE BofA U.S. Corporate & High Yield Index and the Consumer Price Index (CPI) plus 3% annual risk premium, which returned 3.47% and 5.97%, respectively, for the same period. PERFORMANCE HIGHLIGHTS Top contributors to performance: ↑ Selection in financial services, focused on non-bank issuers, with an overweight allocation relative to the index. ↑ Selection in energy and consumer goods, driven by active involvement with management around corporate restructuring and consolidation. ↑ Relative underweight duration position during a period where treasury yields rose significantly. Top detractors from performance: ↓ Negative selection in the leisure sector related to idiosyncratic risks in gaming. ↓ Negative selection in telecommunications as some issuers deal with near-term stresses. ↓ Selection within CCC & below rated credits, as the Fund did not own credits in the lowest decile portion of the high yield market, which was the strongest performing credit segment. | |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. | |
| Line Graph [Table Text Block] | ||
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended December 31, 2024 1 Year 5 Year 10 Year Class I 8.99 5.32 6.14 Bloomberg U.S. Aggregate Index 1.25 -0.33 1.35 ICE BofA U.S. Corporate & High Yield Index 3.47 1.01 2.93 Consumer Price Index (CPI) plus 3% annual risk premium 5.97 7.31 6.08 | |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. | |
| Updated Performance Information Location [Text Block] | For current month-end performance, please call Franklin Templeton at 877-6LM-FUND/656-3863 or visit https://www.franklintempleton.com/investments/options/mutual-funds . Important data provider notices and terms available at www.franklintempletondatasources.com. | |
| Net Assets | $ 2,240,412,469 | |
| Holdings Count | $ / shares | 192 | [6] |
| Advisory Fees Paid, Amount | $ 8,597,365 | |
| Investment Company Portfolio Turnover | 105% | |
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of December 31, 2024) Total Net Assets $2,240,412,469 Total Number of Portfolio Holdings * 192 Total Management Fee Paid $8,597,365 Portfolio Turnover Rate 105% | [6] |
| Holdings [Text Block] | ||
| Updated Prospectus Web Address | https://www.franklintempleton.com/regulatory-fund-documents | |
| Class IS | ||
| Shareholder Report [Line Items] | ||
| Fund Name | BrandywineGLOBAL - Corporate Credit Fund | |
| Class Name | Class IS | |
| Trading Symbol | BGISX | |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about BrandywineGLOBAL - Corporate Credit Fund for the period January 1, 2024, to December 31, 2024. | |
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-fund-documents . You can also request this information by contacting us at 877-6LM-FUND/656-3863 . | |
| Additional Information Phone Number | 877-6LM-FUND/656-3863 | |
| Additional Information Website | https://www.franklintempleton.com/regulatory-fund-documents | |
| 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 IS $49 0.47% | [7] |
| Expenses Paid, Amount | $ 49 | |
| Expense Ratio, Percent | 0.47% | |
| Factors Affecting Performance [Text Block] | HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE? For the twelve months ended December 31, 2024, Class IS shares of BrandywineGLOBAL - Corporate Credit Fund returned 9.10%. The Fund compares its performance to the ICE BofA U.S. Corporate & High Yield Index and the Consumer Price Index (CPI) plus 3% annual risk premium, which returned 3.47% and 5.97%, respectively, for the same period. PERFORMANCE HIGHLIGHTS Top contributors to performance: ↑ Selection in financial services, focused on non-bank issuers, with an overweight allocation relative to the index. ↑ Selection in energy and consumer goods, driven by active involvement with management around corporate restructuring and consolidation. ↑ Relative underweight duration position during a period where treasury yields rose significantly. Top detractors from performance: ↓ Negative selection in the leisure sector related to idiosyncratic risks in gaming. ↓ Negative selection in telecommunications as some issuers deal with near-term stresses. ↓ Selection within CCC & below rated credits, as the Fund did not own credits in the lowest decile portion of the high yield market, which was the strongest performing credit segment. | |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future. | |
| Line Graph [Table Text Block] | ||
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended December 31, 2024 1 Year 5 Year 10 Year Class IS 9.10 5.44 6.25 Bloomberg U.S. Aggregate Index 1.25 -0.33 1.35 ICE BofA U.S. Corporate & High Yield Index 3.47 1.01 2.93 Consumer Price Index (CPI) plus 3% annual risk premium 5.97 7.31 6.08 | |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. | |
| Updated Performance Information Location [Text Block] | For current month-end performance, please call Franklin Templeton at 877-6LM-FUND/656-3863 or visit https://www.franklintempleton.com/investments/options/mutual-funds . Important data provider notices and terms available at www.franklintempletondatasources.com. | |
| Net Assets | $ 2,240,412,469 | |
| Holdings Count | $ / shares | 192 | [8] |
| Advisory Fees Paid, Amount | $ 8,597,365 | |
| Investment Company Portfolio Turnover | 105% | |
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of December 31, 2024) Total Net Assets $2,240,412,469 Total Number of Portfolio Holdings * 192 Total Management Fee Paid $8,597,365 Portfolio Turnover Rate 105% | [8] |
| Holdings [Text Block] | ||
| Updated Prospectus Web Address | https://www.franklintempleton.com/regulatory-fund-documents | |
| [1] * Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher. * Does not include derivatives, except purchased options, if any. * Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher. * Does not include derivatives, except purchased options, if any. * Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher. * Does not include derivatives, except purchased options, if any. * Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher. * Does not include derivatives, except purchased options, if any. | ||
| Shareholder Report, Line Graph (Details) - USD ($) | 12 Months Ended | |||||||||||
| Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Aug. 02, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | |
| Class A | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | Class A (with sales charge) | |||||||||||
| Account Value | $ 17,020 | $ 15,653 | $ 13,816 | $ 15,137 | $ 14,559 | $ 13,297 | $ 11,783 | $ 11,754 | $ 10,928 | $ 9,762 | $ 9,650 | |
| Class C | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | Class C (with sales charge) | |||||||||||
| Account Value | $ 11,057 | 10,244 | 9,106 | 10,051 | $ 10,000 | |||||||
| Class I | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | Class I | |||||||||||
| Account Value | $ 1,813,807 | 1,664,288 | 1,464,796 | 1,601,341 | 1,535,820 | 1,399,539 | 1,236,310 | 1,228,485 | 1,138,890 | 1,014,921 | 1,000,000 | |
| Class IS | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | Class IS | |||||||||||
| Account Value | $ 1,832,853 | 1,679,921 | 1,476,959 | 1,613,113 | 1,545,368 | 1,406,406 | 1,240,734 | 1,231,468 | 1,141,437 | 1,016,040 | 1,000,000 | |
| Bloomberg U.S. Aggregate Index [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Index | |||||||||||
| Account Value | $ 11,437 | 11,294 | 10,702 | 12,305 | 12,498 | 11,625 | 10,692 | 10,691 | 10,325 | 10,057 | 10,000 | |
| Bloomberg U.S. Aggregate Index [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Index | |||||||||||
| Account Value | $ 9,175 | 9,061 | 8,586 | 9,871 | 10,000 | |||||||
| Bloomberg U.S. Aggregate Index [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Index | |||||||||||
| Account Value | $ 1,143,704 | 1,129,412 | 1,070,249 | 1,230,454 | 1,249,775 | 1,162,546 | 1,069,228 | 1,069,060 | 1,032,452 | 1,005,718 | 1,000,000 | |
| Bloomberg U.S. Aggregate Index [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Index | |||||||||||
| Account Value | $ 1,143,704 | 1,129,412 | 1,070,249 | 1,230,454 | 1,249,775 | 1,162,546 | 1,069,228 | 1,069,060 | 1,032,452 | 1,005,718 | 1,000,000 | |
| ICE BofA U.S. Corporate & High Yield Index [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | ICE BofA U.S. Corporate & High Yield Index | |||||||||||
| Account Value | $ 13,345 | 12,899 | 11,826 | 13,881 | 13,879 | 12,694 | 11,107 | 11,359 | 10,649 | 9,862 | 10,000 | |
| Consumer Price Index (CPI) plus 3% annual risk premium [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | Consumer Price Index (CPI) plus 3% annual risk premium | |||||||||||
| Account Value | $ 18,050 | 17,034 | 16,000 | 14,596 | 13,242 | 12,684 | 12,039 | 11,472 | 10,907 | 10,375 | 10,000 | |
| ICE BofA U.S. Corporate & High Yield Index [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | ICE BofA U.S. Corporate & High Yield Index | |||||||||||
| Account Value | $ 9,518 | 9,200 | 8,435 | 9,900 | 10,000 | |||||||
| Consumer Price Index (CPI) plus 3% annual risk premium [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | Consumer Price Index (CPI) plus 3% annual risk premium | |||||||||||
| Account Value | $ 12,727 | 12,011 | 11,282 | 10,292 | $ 10,000 | |||||||
| ICE BofA U.S. Corporate & High Yield Index [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | ICE BofA U.S. Corporate & High Yield Index | |||||||||||
| Account Value | $ 1,334,486 | 1,289,856 | 1,182,609 | 1,388,055 | 1,387,861 | 1,269,386 | 1,110,661 | 1,135,876 | 1,064,927 | 986,208 | 1,000,000 | |
| Consumer Price Index (CPI) plus 3% annual risk premium [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | Consumer Price Index (CPI) plus 3% annual risk premium | |||||||||||
| Account Value | $ 1,804,967 | 1,703,382 | 1,600,033 | 1,459,601 | 1,324,179 | 1,268,369 | 1,203,906 | 1,147,186 | 1,090,729 | 1,037,461 | 1,000,000 | |
| ICE BofA U.S. Corporate & High Yield Index [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | ICE BofA U.S. Corporate & High Yield Index | |||||||||||
| Account Value | $ 1,334,486 | 1,289,856 | 1,182,609 | 1,388,055 | 1,387,861 | 1,269,386 | 1,110,661 | 1,135,876 | 1,064,927 | 986,208 | 1,000,000 | |
| Consumer Price Index (CPI) plus 3% annual risk premium [Member] | ||||||||||||
| Account Value [Line Items] | ||||||||||||
| Line Graph and Table Measure Name | Consumer Price Index (CPI) plus 3% annual risk premium | |||||||||||
| Account Value | $ 1,804,967 | $ 1,703,382 | $ 1,600,033 | $ 1,459,601 | $ 1,324,179 | $ 1,268,369 | $ 1,203,906 | $ 1,147,186 | $ 1,090,729 | $ 1,037,461 | $ 1,000,000 |
| Shareholder Report, Average Annual Return (Details) | 12 Months Ended | 41 Months Ended | 60 Months Ended | 120 Months Ended |
| Dec. 31, 2024 | Dec. 31, 2024 | Dec. 31, 2024 | Dec. 31, 2024 | |
| Class A | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Class A (with sales charge) | |||
| Average Annual Return, Percent | 4.64% | 4.31% | 5.46% | |
| Class C | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Class C (with sales charge) | |||
| Average Annual Return, Percent | 6.94% | 2.99% | ||
| Class I | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Class I | |||
| Average Annual Return, Percent | 8.99% | 5.32% | 6.14% | |
| Class IS | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Class IS | |||
| Average Annual Return, Percent | 9.10% | 5.44% | 6.25% | |
| Without Sales Load [Member] | Class A | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Class A | |||
| Average Annual Return, Percent | 8.73% | 5.06% | 5.84% | |
| Without Sales Load [Member] | Class C | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Class C | |||
| Average Annual Return, Percent | 7.94% | 2.99% | ||
| Bloomberg U.S. Aggregate Index [Member] | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Index | |||
| Average Annual Return, Percent | 1.25% | (0.33%) | 1.35% | |
| Bloomberg U.S. Aggregate Index [Member] | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Index | |||
| Average Annual Return, Percent | 1.25% | (2.49%) | ||
| Bloomberg U.S. Aggregate Index [Member] | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Index | |||
| Average Annual Return, Percent | 1.25% | (0.33%) | 1.35% | |
| Bloomberg U.S. Aggregate Index [Member] | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Index | |||
| Average Annual Return, Percent | 1.25% | (0.33%) | 1.35% | |
| ICE BofA U.S. Corporate & High Yield Index [Member] | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | ICE BofA U.S. Corporate & High Yield Index | |||
| Average Annual Return, Percent | 3.47% | 1.01% | 2.93% | |
| Consumer Price Index (CPI) plus 3% annual risk premium [Member] | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Consumer Price Index (CPI) plus 3% annual risk premium | |||
| Average Annual Return, Percent | 5.97% | 7.31% | 6.08% | |
| ICE BofA U.S. Corporate & High Yield Index [Member] | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | ICE BofA U.S. Corporate & High Yield Index | |||
| Average Annual Return, Percent | 3.47% | (1.43%) | ||
| Consumer Price Index (CPI) plus 3% annual risk premium [Member] | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Consumer Price Index (CPI) plus 3% annual risk premium | |||
| Average Annual Return, Percent | 5.97% | 7.45% | ||
| ICE BofA U.S. Corporate & High Yield Index [Member] | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | ICE BofA U.S. Corporate & High Yield Index | |||
| Average Annual Return, Percent | 3.47% | 1.01% | 2.93% | |
| Consumer Price Index (CPI) plus 3% annual risk premium [Member] | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Consumer Price Index (CPI) plus 3% annual risk premium | |||
| Average Annual Return, Percent | 5.97% | 7.31% | 6.08% | |
| ICE BofA U.S. Corporate & High Yield Index [Member] | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | ICE BofA U.S. Corporate & High Yield Index | |||
| Average Annual Return, Percent | 3.47% | 1.01% | 2.93% | |
| Consumer Price Index (CPI) plus 3% annual risk premium [Member] | ||||
| Average Annual Return [Line Items] | ||||
| Line Graph and Table Measure Name | Consumer Price Index (CPI) plus 3% annual risk premium | |||
| Average Annual Return, Percent | 5.97% | 7.31% | 6.08% |
| Label | Element | Value |
| Class A | Financials [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 27.20% |
| Class A | Consumer Discretionary [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 18.60% |
| Class A | Energy [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 12% |
| Class A | Communication Services [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 8.20% |
| Class A | Industrials [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 6.40% |
| Class A | Information Technology [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 5.10% |
| Class A | Materials [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 4.40% |
| Class A | Health Care [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 3.30% |
| Class A | Consumer Staples [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 2% |
| Class A | Utilities [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 1.40% |
| Class A | Real Estate [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 1.20% |
| Class A | Asset-Backed Securities [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 0.30% |
| Class A | Short-Term Investments [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 9.90% |
| Label | Element | Value |
| Class C | Financials [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 27.20% |
| Class C | Consumer Discretionary [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 18.60% |
| Class C | Energy [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 12% |
| Class C | Communication Services [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 8.20% |
| Class C | Industrials [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 6.40% |
| Class C | Information Technology [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 5.10% |
| Class C | Materials [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 4.40% |
| Class C | Health Care [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 3.30% |
| Class C | Consumer Staples [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 2% |
| Class C | Utilities [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 1.40% |
| Class C | Real Estate [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 1.20% |
| Class C | Asset-Backed Securities [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 0.30% |
| Class C | Short-Term Investments [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 9.90% |
| Label | Element | Value |
| Class I | Consumer Sector [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 2% |
| Class I | Communications Sector [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 8.20% |
| Class I | Financials [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 27.20% |
| Class I | Consumer Discretionary [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 18.60% |
| Class I | Energy [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 12% |
| Class I | Industrials [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 6.40% |
| Class I | Information Technology [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 5.10% |
| Class I | Materials [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 4.40% |
| Class I | Health Care [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 3.30% |
| Class I | Utilities [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 1.40% |
| Class I | Real Estate [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 1.20% |
| Class I | Asset-Backed Securities [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 0.30% |
| Class I | Short-Term Investments [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 9.90% |
| Label | Element | Value |
| Class IS | Financials [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 27.20% |
| Class IS | Consumer Discretionary [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 18.60% |
| Class IS | Energy [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 12% |
| Class IS | Communication Services [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 8.20% |
| Class IS | Industrials [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 6.40% |
| Class IS | Information Technology [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 5.10% |
| Class IS | Materials [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 4.40% |
| Class IS | Health Care [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 3.30% |
| Class IS | Consumer Staples [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 2% |
| Class IS | Utilities [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 1.40% |
| Class IS | Real Estate [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 1.20% |
| Class IS | Asset-Backed Securities [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 0.30% |
| Class IS | Short-Term Investments [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 9.90% |
