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v3.24.0.1

Senior Debt - Senior Debt (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022
Debt Instrument [Line Items] |  |
Principal | $ 1,700,000,000 | $ 1,700,000,000
Unamortized Debt Costs | 9,800,000 | 12,286,000
Carrying Value | 1,690,200,000 | 1,687,714,000
Lazard Group 2025 Senior Notes |  |
Debt Instrument [Line Items] |  |
Initial Principal Amount | $ 400,000,000 |
Maturity Date | Feb. 13, 2025 |
Annual Interest Rate | 3.75% |
Principal | $ 400,000,000 | 400,000,000
Unamortized Debt Costs | 531,000 | 1,003,000
Carrying Value | $ 399,469,000 | 398,997,000
Senior notes interest rate | 3.75% |
Senior debt maturity date | Feb. 13, 2025 |
Effective interest rates of senior notes | 3.87% |
Lazard Group 2027 Senior Notes |  |
Debt Instrument [Line Items] |  |
Initial Principal Amount | $ 300,000,000 |
Maturity Date | Mar. 01, 2027 |
Annual Interest Rate | 3.625% |
Principal | $ 300,000,000 | 300,000,000
Unamortized Debt Costs | 1,235,000 | 1,625,000
Carrying Value | $ 298,765,000 | 298,375,000
Senior notes interest rate | 3.625% |
Senior debt maturity date | Mar. 01, 2027 |
Effective interest rates of senior notes | 3.76% |
Lazard Group 2028 Senior Notes |  |
Debt Instrument [Line Items] |  |
Initial Principal Amount | $ 500,000,000 |
Maturity Date | Sep. 19, 2028 |
Annual Interest Rate | 4.50% |
Principal | $ 500,000,000 | 500,000,000
Unamortized Debt Costs | 4,012,000 | 4,864,000
Carrying Value | $ 495,988,000 | 495,136,000
Senior notes interest rate | 4.50% |
Senior debt maturity date | Sep. 19, 2028 |
Effective interest rates of senior notes | 4.67% |
Lazard Group 2029 Senior Notes |  |
Debt Instrument [Line Items] |  |
Initial Principal Amount | $ 500,000,000 |
Maturity Date | Mar. 11, 2029 |
Annual Interest Rate | 4.375% |
Principal | $ 500,000,000 | 500,000,000
Unamortized Debt Costs | 4,022,000 | 4,794,000
Carrying Value | $ 495,978,000 | $ 495,206,000
Senior notes interest rate | 4.375% |
Senior debt maturity date | Mar. 11, 2029 |
Effective interest rates of senior notes | 4.53% |

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