CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Thousands	Preferred Stock	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss, Net of Deferred Taxes	Unearned Equity Awards	Treasury Stock, at Cost	Total
Balance at Dec. 31, 2021	$ 116,569	$ 416	$ 494,125	$ 654,726	$ (6,181)	$ (7,842)		$ 1,192,620
Balance (in shares) at Dec. 31, 2021		39,877,833
Treasury Stock, at cost, beginning balance at Dec. 31, 2021							$ (59,193)
Increase (Decrease) in Stockholders' Equity
Net income				34,531				34,531
Other comprehensive loss, net of tax					(43,199)			(43,199)
Release of shares, net of forfeitures			844			(3,939)	3,284	189
Release of shares, net of forfeitures (in shares)		127,812
Stock-based compensation						1,219		1,219
Shares received related to tax withholding							(1,414)	(1,414)
Shares received related to tax withholding (in shares)		(40,731)
Cash dividends declared and paid to preferred stockholders				(1,821)				(1,821)
Cash dividends declared and paid to common stockholders				(9,446)				(9,446)
Purchase of treasury stock							(17,392)	(17,392)
Purchase of treasury stock (in shares)		(505,005)
Balance at Mar. 31, 2022	116,569	$ 416	494,969	677,990	(49,380)	(10,562)		1,155,287
Balance (in shares) at Mar. 31, 2022		39,459,909
Treasury Stock, at cost, ending balance at Mar. 31, 2022							(74,715)
Balance at Dec. 31, 2021	116,569	$ 416	494,125	654,726	(6,181)	(7,842)		1,192,620
Balance (in shares) at Dec. 31, 2021		39,877,833
Treasury Stock, at cost, beginning balance at Dec. 31, 2021							(59,193)
Increase (Decrease) in Stockholders' Equity
Net income								112,497
Other comprehensive loss, net of tax					(86,855)			(86,855)
Balance at Sep. 30, 2022	116,569	$ 416	495,232	733,783	(93,036)	(9,177)		1,140,791
Balance (in shares) at Sep. 30, 2022		38,571,572
Treasury Stock, at cost, ending balance at Sep. 30, 2022							(102,996)
Balance at Mar. 31, 2022	116,569	$ 416	494,969	677,990	(49,380)	(10,562)		1,155,287
Balance (in shares) at Mar. 31, 2022		39,459,909
Treasury Stock, at cost, beginning balance at Mar. 31, 2022							(74,715)
Increase (Decrease) in Stockholders' Equity
Net income				38,485				38,485
Other comprehensive loss, net of tax					(20,570)			(20,570)
Release of shares, net of forfeitures			297			(644)	726	379
Release of shares, net of forfeitures (in shares)		27,125
Stock-based compensation						946		946
Shares received related to tax withholding							(1)	(1)
Shares received related to tax withholding (in shares)		(37)
Cash dividends declared and paid to preferred stockholders				(1,822)				(1,822)
Cash dividends declared and paid to common stockholders				(9,282)				(9,282)
Purchase of treasury stock							(22,900)	(22,900)
Purchase of treasury stock (in shares)		(717,644)
Balance at Jun. 30, 2022	116,569	$ 416	495,266	705,371	(69,950)	(10,260)		1,140,522
Balance (in shares) at Jun. 30, 2022		38,769,353
Treasury Stock, at cost, ending balance at Jun. 30, 2022							(96,890)
Increase (Decrease) in Stockholders' Equity
Net income				39,481				39,481
Other comprehensive loss, net of tax					(23,086)			(23,086)
Release of shares, net of forfeitures			(33)			20	241	228
Release of shares, net of forfeitures (in shares)		7,227
Stock-based compensation						1,063		1,063
Shares received related to tax withholding			(1)				(141)	(142)
Shares received related to tax withholding (in shares)		(4,662)
Cash dividends declared and paid to preferred stockholders				(1,822)				(1,822)
Cash dividends declared and paid to common stockholders				(9,247)				(9,247)
Purchase of treasury stock							(6,206)	(6,206)
Purchase of treasury stock (in shares)		(200,346)
Balance at Sep. 30, 2022	116,569	$ 416	495,232	733,783	(93,036)	(9,177)		1,140,791
Balance (in shares) at Sep. 30, 2022		38,571,572
Treasury Stock, at cost, ending balance at Sep. 30, 2022							(102,996)
Balance at Dec. 31, 2022	116,569	$ 416	495,410	762,762	(94,379)	(8,078)		$ 1,169,583
Balance (in shares) at Dec. 31, 2022		38,573,000						38,573,000
Treasury Stock, at cost, beginning balance at Dec. 31, 2022							(103,117)	$ (103,117)
Increase (Decrease) in Stockholders' Equity
Net income				37,303				37,303
Other comprehensive loss, net of tax					(4,259)			(4,259)
Release of shares, net of forfeitures			(1,608)			(6,692)	8,507	207
Release of shares, net of forfeitures (in shares)		293,106
Stock-based compensation						1,302		1,302
Shares received related to tax withholding			(1)				(1,112)	(1,113)
Shares received related to tax withholding (in shares)		(36,932)
Cash dividends declared and paid to preferred stockholders				(1,821)				(1,821)
Cash dividends declared and paid to common stockholders				(9,234)				(9,234)
Purchase of treasury stock							(715)	(715)
Purchase of treasury stock (in shares)		(24,813)
Balance at Mar. 31, 2023	116,569	$ 416	493,801	789,010	(98,638)	(13,468)		1,191,253
Balance (in shares) at Mar. 31, 2023		38,804,361
Treasury Stock, at cost, ending balance at Mar. 31, 2023							(96,437)
Balance at Dec. 31, 2022	116,569	$ 416	495,410	762,762	(94,379)	(8,078)		$ 1,169,583
Balance (in shares) at Dec. 31, 2022		38,573,000						38,573,000
Treasury Stock, at cost, beginning balance at Dec. 31, 2022							(103,117)	$ (103,117)
Increase (Decrease) in Stockholders' Equity
Net income								79,786
Other comprehensive loss, net of tax					(12,534)			(12,534)
Balance at Sep. 30, 2023	116,569	$ 416	494,470	808,235	(106,913)	(10,170)		$ 1,204,344
Balance (in shares) at Sep. 30, 2023		38,810,546						38,810,546
Treasury Stock, at cost, ending balance at Sep. 30, 2023							(98,263)	$ (98,263)
Balance at Mar. 31, 2023	116,569	$ 416	493,801	789,010	(98,638)	(13,468)		1,191,253
Balance (in shares) at Mar. 31, 2023		38,804,361
Treasury Stock, at cost, beginning balance at Mar. 31, 2023							(96,437)
Increase (Decrease) in Stockholders' Equity
Net income				27,498				27,498
Other comprehensive loss, net of tax					(5,747)			(5,747)
Release of shares, net of forfeitures			154			364	(123)	395
Release of shares, net of forfeitures (in shares)		13,262
Stock-based compensation						1,358		1,358
Shares received related to tax withholding							(46)	(46)
Shares received related to tax withholding (in shares)		(2,504)
Cash dividends declared and paid to preferred stockholders				(1,822)				(1,822)
Cash dividends declared and paid to common stockholders				(10,154)				(10,154)
Purchase of treasury stock							(232)	(232)
Purchase of treasury stock (in shares)		(12,000)
Balance at Jun. 30, 2023	116,569	$ 416	493,955	804,532	(104,385)	(11,746)		1,202,503
Balance (in shares) at Jun. 30, 2023		38,803,119
Treasury Stock, at cost, ending balance at Jun. 30, 2023							(96,838)
Increase (Decrease) in Stockholders' Equity
Net income				14,985				14,985
Other comprehensive loss, net of tax					(2,528)			(2,528)
Release of shares, net of forfeitures			515			1,038	(1,332)	221
Release of shares, net of forfeitures (in shares)		12,598
Stock-based compensation						538		538
Shares received related to tax withholding							(93)	(93)
Shares received related to tax withholding (in shares)		(5,171)
Cash dividends declared and paid to preferred stockholders				(1,822)				(1,822)
Cash dividends declared and paid to common stockholders				(9,460)				(9,460)
Balance at Sep. 30, 2023	$ 116,569	$ 416	$ 494,470	$ 808,235	$ (106,913)	$ (10,170)		$ 1,204,344
Balance (in shares) at Sep. 30, 2023		38,810,546						38,810,546
Treasury Stock, at cost, ending balance at Sep. 30, 2023							$ (98,263)	$ (98,263)