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Earnings Per Share - Components of Earnings Per Share (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2022
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2021
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Earnings Per Share [Abstract]                      
Net income from continuing operations available to common shareholders                 $ 218,402 $ 339,755 $ 128,998
Net loss from discontinued operations         $ (1,585) $ 0 $ 0 $ (38,036) 0 (39,621) (10,461)
Net income available to common shareholders $ 25,623 $ 61,364 $ 56,519 $ 74,896 98,647 110,241 58,042 33,204 218,402 300,134 118,537
Net income available to common shareholders $ 25,623 $ 61,364 $ 56,519 $ 74,896 $ 98,647 $ 110,241 $ 58,042 $ 33,204 $ 218,402 $ 300,134 $ 118,537
Weighted-average number of common shares outstanding – basic (shares)                 32,632,751 32,312,262 31,506,699
Share-based compensation plans (shares)                 914,955 1,385,285 221,085
Weighted-average number of common shares – diluted (shares)                 33,547,706 33,697,547 31,727,784
Basic earnings (loss) per common share from continuing operations (usd per share) $ 0.79 $ 1.89 $ 1.73 $ 2.27 $ 3.07 $ 3.40 $ 1.80 $ 2.23 $ 6.69 $ 10.51 $ 4.09
Basic earnings (loss) per common share from discontinued operations (usd per share)                 0 (1.22) (0.33)
Basic earnings (loss) per common share (usd per share) 0.79 1.89 1.73 2.27 3.02 3.40 1.80 1.04 6.69 9.29 3.76
Diluted earnings (loss) per common share from continuing operations (usd per share) 0.77 1.85 1.68 2.18 2.92 3.25 1.72 2.17 6.51 10.08 4.07
Diluted earnings (loss) per common share from discontinued operations (usd per share)                 0 (1.17) (0.33)
Diluted earnings (loss) per common share (usd per share) $ 0.77 $ 1.85 $ 1.68 $ 2.18 $ 2.87 $ 3.25 $ 1.72 $ 1.01 $ 6.51 $ 8.91 $ 3.74