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Net Income Per Share of Common Stock (Tables) | 12 Months Ended
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Dec. 31, 2022
Earnings Per Share [Abstract] |
Company's Basic and Diluted Net Income Per Share and Weighted Average Shares Outstanding | The Company’s basic and diluted net income per share calculations using the “two-class” method for the years ended December 31, 2022, 2021, and 2020 are presented below:
|  | Year Ended December 31, |
|  | 2022 |  |  | 2021 |  |  | 2020 |
Net income attributable to Lazard Ltd |  | $ | 357,517 |  |  | $ | 528,064 |  |  | $ | 402,461 |
Add - adjustment for earnings attributable to participating securities |  |  | (5,732 | ) |  |  | (8,647 | ) |  |  | (7,667 | )
Net income attributable to Lazard Ltd - basic |  |  | 351,785 |  |  |  | 519,417 |  |  |  | 394,794 |
Add - adjustment for earnings attributable to participating securities |  |  | 2,641 |  |  |  | 7,068 |  |  |  | 6,429 |
Net income attributable to Lazard Ltd - diluted |  | $ | 354,426 |  |  | $ | 526,485 |  |  | $ | 401,223 |
Weighted average number of shares of common stock outstanding |  |  | 93,994,663 |  |  |  | 104,166,347 |  |  |  | 104,803,849 |
Add - adjustment for shares of common stock issuable on a non-contingent basis |  |  | 1,669,466 |  |  |  | 1,869,461 |  |  |  | 2,058,890 |
Weighted average number of shares of common stock outstanding - basic |  |  | 95,664,129 |  |  |  | 106,035,808 |  |  |  | 106,862,739 |
Add - dilutive effect, as applicable, of: |  |  |  |  |  |  |  |  |  |  |  |
Weighted average number of incremental shares of common stock issuable from share-based incentive compensation |  |  | 5,333,545 |  |  |  | 7,638,891 |  |  |  | 6,620,641 |
Weighted average number of shares of common stock outstanding - diluted |  |  | 100,997,674 |  |  |  | 113,674,699 |  |  |  | 113,483,380 |
Net income attributable to Lazard Ltd per share of common stock: |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 3.68 |  |  | $ | 4.90 |  |  | $ | 3.69 |
Diluted |  | $ | 3.51 |  |  | $ | 4.63 |  |  | $ | 3.54 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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