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Earnings Per Common Share (Basic and Diluted Earnings Per Common Share) (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Earnings Per Share [Abstract] |  |  |
Net income | $ 579,150 | $ 443,079 | $ 331,151
Less: Preferred stock dividends | 6,675 | 7,157 | 2,016
Redemption of preferred stock | 0 | 0 | 5,514
Net income available to common shareholders | 572,475 | 435,922 | 323,621
Less: Earnings allocated to participating securities | 5,210 | 3,881 | 3,136
Net earnings allocated to common stock | 567,265 | 432,041 | 320,485
Distributed earnings allocated to common stock | 207,924 | 187,202 | 178,863
Undistributed earnings allocated to common stock | $ 359,341 | $ 244,839 | $ 141,622
Weighted-average shares outstanding for basic earnings per common share | 64,156,870 | 63,612,658 | 62,727,053
Dilutive effect of stock compensation | 363,648 | 489,462 | 276,784
Weighted-average shares outstanding for diluted earnings per common share | 64,520,518 | 64,102,120 | 63,003,837

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