Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Preferred Stock [Member]	Common Stock [Member]	Capital Surplus [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Deferred Benefits for Directors [Member]
Beginning Balance at Dec. 31, 2023	$ 2,533,062	$ 144,484	$ 141,834	$ 1,635,859	$ 1,142,586	$ (302,995)	$ (226,693)	$ (2,013)
Beginning Balance, shares at Dec. 31, 2023			59,376,435
Net income	64,609				64,609
Other comprehensive income (loss)	(8,515)						(8,515)
Comprehensive income	56,094
Common dividends declared	(42,392)				(42,392)
Stock issued for dividend reinvestment					(523)	523
Stock issued for dividend reinvestment, shares			14,058
Treasury shares acquired	(1,441)					(1,441)
Treasury shares acquired, shares			(49,729)
Stock options exercised	176			(126)		302
Stock options exercised, shares			8,139
Restricted stock granted				(8,793)		8,793
Restricted stock granted, shares			230,407
Stock compensation/Option expense	3,867			3,867
Deferred benefits for directors- net	(24)			23				(47)
Ending Balance at Jun. 30, 2024	2,544,279	144,484	$ 141,834	1,630,830	1,159,217	(294,818)	(235,208)	(2,060)
Ending Balance, shares at Jun. 30, 2024			59,579,310
Beginning Balance at Mar. 31, 2024	2,538,362	144,484	$ 141,834	1,636,964	1,154,307	(302,264)	(234,922)	(2,041)
Beginning Balance, shares at Mar. 31, 2024			59,395,777
Net income	28,916				28,916
Other comprehensive income (loss)	(286)						(286)
Comprehensive income	28,630
Common dividends declared	(21,214)				(21,214)
Preferred dividends declared	(2,531)				(2,531)
Stock issued for dividend reinvestment					(261)	261
Stock issued for dividend reinvestment, shares			6,878
Treasury shares acquired	(1,355)					(1,355)
Treasury shares acquired, shares			(46,696)
Stock options exercised	76			(52)		128
Stock options exercised, shares			3,375
Restricted stock granted				(8,412)		8,412
Restricted stock granted, shares			219,976
Stock compensation/Option expense	2,320			2,320
Deferred benefits for directors- net	(9)			10				(19)
Ending Balance at Jun. 30, 2024	2,544,279	144,484	$ 141,834	1,630,830	1,159,217	(294,818)	(235,208)	(2,060)
Ending Balance, shares at Jun. 30, 2024			59,579,310
Beginning Balance at Dec. 31, 2024	2,790,281	144,484	$ 156,985	1,809,679	1,192,091	(292,244)	(218,632)	(2,082)
Beginning Balance, shares at Dec. 31, 2024			66,919,805
Net income	48,423				48,423
Other comprehensive income (loss)	44,988						44,988
Comprehensive income	93,411
Common dividends declared	(70,393)				(70,393)
Preferred dividends declared	(5,063)				(5,063)
Stock issued for Premier Financial Corp. ("PFC") acquisition	1,007,845		$ 42,326	673,826		291,693
Stock issued for Premier Financial Corp. ("PFC") acquisition, shares			28,738,104
Treasury shares acquired	(1,738)			325		(2,063)
Treasury shares acquired, shares			(63,410)
Stock options exercised	792		$ 9	(272)		1,055
Stock options exercised, shares			32,132
Restricted stock granted			$ 647	(2,206)		1,559
Restricted stock granted, shares			359,392
Stock compensation/Option expense	4,184			4,184
Deferred benefits for directors- net	(99)			(78)				(21)
Ending Balance at Jun. 30, 2025	3,819,220	144,484	$ 199,967	2,485,458	1,165,058	(0)	(173,644)	(2,103)
Ending Balance, shares at Jun. 30, 2025			95,986,023
Beginning Balance at Mar. 31, 2025	3,781,579	144,484	$ 199,313	2,485,223	1,145,396		(190,710)	(2,127)
Beginning Balance, shares at Mar. 31, 2025			95,672,204
Net income	57,415				57,415
Other comprehensive income (loss)	17,066						17,066
Comprehensive income	74,481
Common dividends declared	(35,221)				(35,221)
Preferred dividends declared	(2,532)				(2,532)
Treasury shares acquired, shares			(51,198)
Stock options exercised	60		$ 6	54
Stock options exercised, shares			5,625
Restricted stock granted	(1,558)		$ 648	(2,206)
Restricted stock granted, shares			359,392
Stock compensation/Option expense	2,477			2,477
Deferred benefits for directors- net	(66)			(90)				24
Ending Balance at Jun. 30, 2025	$ 3,819,220	$ 144,484	$ 199,967	$ 2,485,458	$ 1,165,058	$ (0)	$ (173,644)	$ (2,103)
Ending Balance, shares at Jun. 30, 2025			95,986,023