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Summary of Significant Accounting Policies - Basic and Diluted Net Income Per Share Calculations (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Basic net income per common share calculation: |  |
Net income available to common shareholders | $ 120,146 | $ 133,473
Denominator - Weighted average common shares outstanding (in shares) | 76,278,453 | 75,921,282
Basic net income per common share (in dollars per share) | $ 1.58 | $ 1.76
Diluted net income per common share calculation: |  |
Numerator - Net income available to common shareholders | $ 120,146 | $ 133,473
Dilutive shares contingently issuable (in shares) | 151,000 | 121,000
Weighted Average Number of Shares Outstanding, Diluted | 76,428,885 | 76,042,328
Diluted net income per common share (in dollars per share) | $ 1.57 | $ 1.76

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