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Earnings Per Common Share - Basic and Diluted Earnings Per Common Share (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Earnings Per Share [Abstract] |  |  |  |
Net income | $ 155,651 | $ 169,760 | $ 495,422 | $ 387,976
Less: Preferred stock dividends | 1,668 | 1,668 | 5,006 | 5,006
Net income available to common shareholders | 153,983 | 168,092 | 490,416 | 382,970
Less: Earnings allocated to participating securities | 1,533 | 1,503 | 5,016 | 3,414
Distributed earnings allocated to common stock | 58,913 | 55,820 | 170,702 | 151,963
Undistributed earnings allocated to common stock | 93,537 | 110,769 | 314,698 | 227,593
Net earnings allocated to common stock | $ 152,450 | $ 166,589 | $ 485,400 | $ 379,556
Weighted-average shares outstanding for basic earnings per common share | 64,067,352 | 64,157,662 | 64,226,113 | 64,107,621
Dilutive effect of stock compensation | 171,892 | 343,750 | 208,187 | 369,268
Weighted-average shares outstanding for diluted earnings per common share | 64,239,244 | 64,501,412 | 64,434,300 | 64,476,889

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