Earnings Per Common Share - Basic and Diluted Earnings Per Common Share (Detail) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Earnings Per Share [Abstract]
Net income	$ 177,653	$ 99,102
Less: Preferred stock dividends	1,669	1,669
Net income available to common shareholders	175,984	97,433
Less: Earnings allocated to participating securities	1,807	849
Distributed earnings allocated to common stock	56,006	48,051
Undistributed earnings allocated to common stock	118,171	48,533
Net earnings allocated to common stock	$ 174,177	$ 96,584
Weighted-average shares outstanding for basic earnings per common share	64,373,563	64,051,202
Dilutive effect of stock compensation	258,513	409,705
Weighted-average shares outstanding for diluted earnings per common share	64,632,076	64,460,907

Net Income Loss Available To Common Stock After Participating Securities Allocation

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The total amount of dividends declared in the period for each class of stock and the contractual amount of dividends (or interest on participating income bonds) that must be paid for the period (for example, unpaid cumulative dividends). Dividends declared in the current period do not include dividends declared in respect of prior-period unpaid cumulative dividends. Preferred dividends that are cumulative only if earned are deducted only to the extent that they are earned.

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