Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Preferred Stock Preferred Series A Stock	Preferred Stock Preferred Series B Stock	Common Stock	Capital Surplus	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	Treasury Stock
Balance at Beginning of Period at Dec. 31, 2022	$ 1,316,995	$ 180,000		$ 582	$ 620,578	$ (434,658)	$ 2,055,912	$ (1,105,419)
Beginning Balance (in shares) at Dec. 31, 2022		180,000		39,835,750
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	46,842						46,842
Other Comprehensive Income (Loss)	29,360					29,360
Share-Based Compensation	3,371				3,371
Common Stock Issued under Purchase and Equity Compensation Plans	1,568			$ 1	177		1,587	(197)
Common Stock Issued under Purchase and Equity Compensation Plans (in shares)				13,164
Common Stock Repurchased	(13,793)							(13,793)
Common Stock Repurchased (in shares)				(202,408)
Cash Dividends Declared Common Stock (per share)	(27,944)						(27,944)
Cash Dividends Declared Preferred Stock	(1,969)						(1,969)
Balance at End of Period at Mar. 31, 2023	1,354,430	$ 180,000		$ 583	624,126	(405,298)	2,074,428	(1,119,409)
Ending Balance (in shares) at Mar. 31, 2023		180,000		39,646,506
Balance at Beginning of Period at Dec. 31, 2022	1,316,995	$ 180,000		$ 582	620,578	(434,658)	2,055,912	(1,105,419)
Beginning Balance (in shares) at Dec. 31, 2022		180,000		39,835,750
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	92,903
Other Comprehensive Income (Loss)	11,227					11,227
Balance at End of Period at Jun. 30, 2023	1,358,279	$ 180,000		$ 583	628,202	(423,431)	2,091,289	(1,118,364)
Ending Balance (in shares) at Jun. 30, 2023		180,000		39,725,348
Balance at Beginning of Period at Mar. 31, 2023	1,354,430	$ 180,000		$ 583	624,126	(405,298)	2,074,428	(1,119,409)
Beginning Balance (in shares) at Mar. 31, 2023		180,000		39,646,506
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	46,061						46,061
Other Comprehensive Income (Loss)	(18,133)					(18,133)
Share-Based Compensation	4,301				4,301
Common Stock Issued under Purchase and Equity Compensation Plans	1,657				(225)		699	1,183
Common Stock Issued under Purchase and Equity Compensation Plans (in shares)				81,601
Common Stock Repurchased	(138)							(138)
Common Stock Repurchased (in shares)				(2,759)
Cash Dividends Declared Common Stock (per share)	(27,930)						(27,930)
Cash Dividends Declared Preferred Stock	(1,969)						(1,969)
Balance at End of Period at Jun. 30, 2023	1,358,279	$ 180,000		$ 583	628,202	(423,431)	2,091,289	(1,118,364)
Ending Balance (in shares) at Jun. 30, 2023		180,000		39,725,348
Balance at Beginning of Period at Dec. 31, 2023	1,414,242	$ 180,000		$ 583	636,422	(396,688)	2,107,569	(1,113,644)
Beginning Balance (in shares) at Dec. 31, 2023		180,000		39,753,138
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	36,391						36,391
Other Comprehensive Income (Loss)	13,107					13,107
Share-Based Compensation	4,030				4,030
Common Stock Issued under Purchase and Equity Compensation Plans	1,552			$ 1	211		794	546
Common Stock Issued under Purchase and Equity Compensation Plans (in shares)				21,332
Common Stock Repurchased	(3,320)							(3,320)
Common Stock Repurchased (in shares)				(53,746)
Cash Dividends Declared Common Stock (per share)	(28,056)						(28,056)
Cash Dividends Declared Preferred Stock	(1,969)						(1,969)
Balance at End of Period at Mar. 31, 2024	1,435,977	$ 180,000		$ 584	640,663	(383,581)	2,114,729	(1,116,418)
Ending Balance (in shares) at Mar. 31, 2024		180,000		39,720,724
Balance at Beginning of Period at Dec. 31, 2023	1,414,242	$ 180,000		$ 583	636,422	(396,688)	2,107,569	(1,113,644)
Beginning Balance (in shares) at Dec. 31, 2023		180,000		39,753,138
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	70,474
Other Comprehensive Income (Loss)	22,327					22,327
Balance at End of Period at Jun. 30, 2024	1,612,849	$ 180,000	$ 165,000	$ 585	639,841	(374,361)	2,119,140	(1,117,356)
Ending Balance (in shares) at Jun. 30, 2024		180,000	165,000	39,729,941
Balance at Beginning of Period at Mar. 31, 2024	1,435,977	$ 180,000		$ 584	640,663	(383,581)	2,114,729	(1,116,418)
Beginning Balance (in shares) at Mar. 31, 2024		180,000		39,720,724
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	34,083						34,083
Other Comprehensive Income (Loss)	9,220					9,220
Share-Based Compensation	3,475				3,475
Preferred Stock Issued, Net	160,614		$ 165,000		(4,386)
Preferred Stock Issued, Net (in shares)			165,000
Common Stock Issued under Purchase and Equity Compensation Plans	1,185			$ 1	89		358	737
Common Stock Issued under Purchase and Equity Compensation Plans (in shares)				36,640
Common Stock Repurchased	(1,675)							(1,675)
Common Stock Repurchased (in shares)				(27,423)
Cash Dividends Declared Common Stock (per share)	(28,061)						(28,061)
Cash Dividends Declared Preferred Stock	(1,969)						(1,969)
Balance at End of Period at Jun. 30, 2024	$ 1,612,849	$ 180,000	$ 165,000	$ 585	$ 639,841	$ (374,361)	$ 2,119,140	$ (1,117,356)
Ending Balance (in shares) at Jun. 30, 2024		180,000	165,000	39,729,941