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Earnings (Loss) Per Share - Components of Earnings Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Earnings Per Share [Abstract]
Net income available to common shareholders	$ 50,265	$ 74,896
Weighted-average number of common shares outstanding - basic (shares)	31,819,203	32,957,033
Share-based compensation plans (shares)	525,814	1,370,032
Weighted-average number of common shares - diluted (shares)	32,345,017	34,327,065
Basic earnings per common share (usd per share)	$ 1.58	$ 2.27
Diluted earnings per common share (usd per share)	$ 1.55	$ 2.18

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