CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands	Total	Common Stock	Paid-in Capital	Retained Earnings- Substantially Restricted	Accumulated Other Comp-rehensive (Loss) Income
Balance (in shares) at Dec. 31, 2020		95,426,364
Balance at Dec. 31, 2020	$ 2,307,041	$ 954	$ 1,495,053	$ 667,944	$ 143,090
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	284,757			284,757
Other comprehensive (loss) income	(115,731)				(115,731)
Cash dividends declared	(142,359)			(142,359)
Stock issued in connection with acquisitions (in shares)		15,173,482
Stock issued in connection with acquisitions	839,853	$ 152	839,701
Stock issuances under stock incentive plans (in shares)		87,687
Stock issuances under stock incentive plans	0	$ 1	(1)
Stock-based compensation and related taxes	4,061		4,061
Balance (in shares) at Dec. 31, 2021		110,687,533
Balance at Dec. 31, 2021	3,177,622	$ 1,107	2,338,814	810,342	27,359
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	303,202			303,202
Other comprehensive (loss) income	(496,151)				(496,151)
Cash dividends declared	(146,560)			(146,560)
Stock issuances under stock incentive plans (in shares)		90,247
Stock issuances under stock incentive plans	0	$ 1	(1)
Stock-based compensation and related taxes	$ 5,192		5,192
Balance (in shares) at Dec. 31, 2022	110,777,780	110,777,780
Balance at Dec. 31, 2022	$ 2,843,305	$ 1,108	2,344,005	966,984	(468,792)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	222,927			222,927
Other comprehensive (loss) income	94,679				94,679
Cash dividends declared	(146,730)			(146,730)
Stock issuances under stock incentive plans (in shares)		111,162
Stock issuances under stock incentive plans	0	$ 1	(1)
Stock-based compensation and related taxes	$ 6,100		6,100
Balance (in shares) at Dec. 31, 2023	110,888,942	110,888,942
Balance at Dec. 31, 2023	$ 3,020,281	$ 1,109	$ 2,350,104	$ 1,043,181	$ (374,113)