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v3.23.2

INCENTIVE PLANS - Additional Information (Details) $ / shares in Units, $ in Thousands |  |  | 6 Months Ended |  |
--- | --- | --- | --- | --- | ---
Apr. 29, 2021 shares | Apr. 24, 2018 shares | Jun. 30, 2023 USD ($) $ / shares shares | Jun. 30, 2022 $ / shares | Feb. 01, 2021 | Jan. 31, 2021
Lazard Fund Interests |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Unrecognized compensation expense (in years) |  |  | 1 year |  |  |
Non-Executive |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Annual compensation received by directors in the form of DSUs (as percent) |  |  | 55.00% |  |  |
RSUs |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Common stock conversion basis |  |  | one-for-one |  |  |
Number of dividend participation rights issued |  |  | 352,254 |  |  |
Charges to retained earnings, net of estimated forfeitures | $ |  |  | $ 11,311 |  |  |
Units granted (in shares) |  |  | 4,996,312 |  |  |
Weighted average grant date fair value, granted (in USD per share) | $ / shares |  |  | $ 36.75 | $ 33.49 |  |
Unrecognized compensation expense | $ |  |  | $ 189,180 |  |  |
Unrecognized compensation expense (in years) |  |  | 1 year |  |  |
RSUs | Share-Based Payment Arrangement, Tranche One |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Award vesting percentage |  |  | 33.33% |  |  |
RSUs | Share-Based Payment Arrangement, Tranche Two |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Award vesting percentage |  |  | 66.67% |  |  |
DSUs |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Units granted (in shares) |  |  | 53,997 |  |  |
Weighted average grant date fair value, granted (in USD per share) | $ / shares |  |  | $ 29.50 | 35.19 |  |
DSUs | Non-Executive |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Units granted (in shares) |  |  | 43,999 |  |  |
Units granted under the directors deferred unit plan (in shares) |  |  | 9,998 |  |  |
RSAs |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Units granted (in shares) |  |  | 625,833 |  |  |
Weighted average grant date fair value, granted (in USD per share) | $ / shares |  |  | $ 37.69 | 33.21 |  |
Net of estimated forfeitures | $ |  |  | $ 1,650 |  |  |
Unrecognized compensation expense | $ |  |  | $ 25,871 |  |  |
Unrecognized compensation expense (in years) |  |  | 10 months 24 days |  |  |
Dividend participation rights issued (in shares) |  |  | 50,754 |  |  |
PRSUs |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Weighted average grant date fair value, granted (in USD per share) | $ / shares |  |  |  | 35.44 |  |
Unrecognized compensation expense | $ |  |  | $ 2,322 |  |  |
Unrecognized compensation expense (in years) |  |  | 7 months 6 days |  |  |
Vesting period |  |  | 3 years |  |  |
PRSUs | Minimum |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Target number of shares, multiplier |  |  | 0 |  |  |
PRSUs | Maximum |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Target number of shares, multiplier |  |  | 2.4 |  |  |
Profits interest participation rights |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Common stock conversion basis |  |  | one-for-one |  |  |
Weighted average grant date fair value, granted (in USD per share) | $ / shares |  |  | $ 35.94 | $ 34.53 |  |
Unrecognized compensation expense | $ |  |  | $ 34,515 |  |  |
Unrecognized compensation expense (in years) |  |  | 10 months 24 days |  |  |
Vesting period |  |  | 3 years |  |  |
Target number of shares PRPUs (as percent) |  |  | 25.00% |  |  |
Profits interest participation rights | Minimum |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Target number of shares, multiplier |  |  |  |  | 0 | 0
Profits interest participation rights | Maximum |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Target number of shares, multiplier |  |  |  |  | 2.4 | 2
Common Stock | RSUs |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Withholding taxes in lieu of share delivery (in shares) |  |  | 1,121,423 |  |  |
Delivery of common stock associated with stock awards (in shares) |  |  | 1,711,773 |  |  |
Common Stock | RSAs |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Withholding taxes in lieu of share delivery (in shares) |  |  | 202,120 |  |  |
Delivery of common stock associated with stock awards (in shares) |  |  | 271,239 |  |  |
2018 Equity Incentive Plan | Common Stock |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Aggregate number of shares authorized (in shares) | 20,000,000 |  |  |  |  |
Common stock shares authorized (in shares) |  | 30,000,000 |  |  |  |
Awarded Under 2008 Plan | Common Stock |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Outstanding common stock available (as percent) |  | 30.00% |  |  |  |
Compensation plan expiration period |  | Apr. 24, 2018 |  |  |  |
2005 Equity Incentive Plan | Common Stock |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Common stock shares authorized (in shares) |  |  | 25,000,000 |  |  |

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