Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Cumulative Effect, Period of Adoption, Adjustment [Member] Preferred Stock [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Common Stock [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Additional Paid-in Capital [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Retained Earnings [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Treasury Stock [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] AOCI Attributable to Parent [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]	Cumulative Effect, Period of Adoption, Adjusted Balance [Member] Preferred Stock [Member]	Cumulative Effect, Period of Adoption, Adjusted Balance [Member] Common Stock [Member]	Cumulative Effect, Period of Adoption, Adjusted Balance [Member] Additional Paid-in Capital [Member]	Cumulative Effect, Period of Adoption, Adjusted Balance [Member] Retained Earnings [Member]	Cumulative Effect, Period of Adoption, Adjusted Balance [Member] Treasury Stock [Member]	Cumulative Effect, Period of Adoption, Adjusted Balance [Member] AOCI Attributable to Parent [Member]	Cumulative Effect, Period of Adoption, Adjusted Balance [Member]	Restricted Stock Units (RSUs) [Member] Preferred Stock [Member]	Restricted Stock Units (RSUs) [Member] Common Stock [Member]	Restricted Stock Units (RSUs) [Member] Additional Paid-in Capital [Member]	Restricted Stock Units (RSUs) [Member] Retained Earnings [Member]	Restricted Stock Units (RSUs) [Member] Treasury Stock [Member]	Restricted Stock Units (RSUs) [Member] AOCI Attributable to Parent [Member]	Restricted Stock Units (RSUs) [Member]	Performance Shares [Member] Preferred Stock [Member]	Performance Shares [Member] Common Stock [Member]	Performance Shares [Member] Additional Paid-in Capital [Member]	Performance Shares [Member] Retained Earnings [Member]	Performance Shares [Member] Treasury Stock [Member]	Performance Shares [Member] AOCI Attributable to Parent [Member]	Performance Shares [Member]	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	AOCI Attributable to Parent [Member]	Total
Balance at Dec. 31, 2020	$ 0	$ 0	$ 0	$ (2,925)	$ 0	$ 0	$ (2,925)	$ 0	$ 586,946	$ 23,887	$ 329,026	$ (30,271)	$ 2,797	$ 912,385															$ 0	$ 586,946	$ 23,887	$ 331,951	$ (30,271)	$ 2,797	$ 915,310
Net income																													0	0	0	97,315	0	0	97,315
Other comprehensive income (loss), net of tax																													0	0	0	0	0	(3,770)	(3,770)
Cash dividends declared on common stock																													0	0	0	(12,345)	0	0	(12,345)
Exercise of stock options																													0	0	45	0	0	0	45
Restricted stock grants, net of forfeitures																													0	0	0	0	0	0	0
Stock grants																													0	0	0	0	0	0	0
Net shares issued in satisfaction of units earned															$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0
Share redemption for tax withholdings on performance units and restricted stock units earned																													0	0	(1,283)	0	0	0	(1,283)
Repurchase of treasury stock																													0	0	0	0	(8,043)	0	(8,043)
Stock-based compensation expense																													0	0	3,202	0	0	0	3,202
Proceeds from preferred stock issuance, net of costs																													110,927	0	0	0	0	0	110,927
Balance at Sep. 30, 2021																													110,927	586,946	25,851	413,996	(38,314)	(973)	1,098,433
Balance at Jun. 30, 2021																													0	586,946	24,606	386,280	(32,682)	(190)	964,960
Net income																													0	0	0	32,097	0	0	32,097
Other comprehensive income (loss), net of tax																													0	0	0	0	0	(783)	(783)
Cash dividends declared on common stock																													0	0	0	(4,381)	0	0	(4,381)
Restricted stock grants, net of forfeitures																													0	0	0	0	0	0	0
Stock grants																													0	0	0	0	0	0	0
Repurchase of treasury stock																													0	0	0	0	(5,632)	0	(5,632)
Stock-based compensation expense																													0	0	1,245	0	0	0	1,245
Proceeds from preferred stock issuance, net of costs																													110,927						110,927
Balance at Sep. 30, 2021																													110,927	586,946	25,851	413,996	(38,314)	(973)	1,098,433
Balance at Dec. 31, 2021																													110,927	586,946	27,246	440,169	(39,672)	(1,404)	1,124,212
Net income																													0	0	0	92,654	0	0	92,654
Other comprehensive income (loss), net of tax																													0	0	0	0	0	(35,088)	(35,088)
Cash dividend declared on preferred stock																													0	0	0	(4,527)	0	0	(4,527)
Cash dividends declared on common stock																													0	0	0	(17,339)	0	0	(17,339)
Exercise of stock options																													0	0	124	0	0	0	124
Restricted stock grants, net of forfeitures																													0	0	0	0	0	0	0
Stock grants																													0	0	0	0	0	0	0
Net shares issued in satisfaction of units earned															$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0
Share redemption for tax withholdings on performance units and restricted stock units earned																													0	0	(2,133)	0	0	0	(2,133)
Repurchase of treasury stock																													0	0	0	0	(13,127)	0	(13,127)
Stock-based compensation expense																													0	0	3,519	0	0	0	3,519
Balance at Sep. 30, 2022																													110,927	586,946	28,756	510,957	(52,799)	(36,492)	1,148,295
Balance at Jun. 30, 2022																													110,927	586,946	27,536	489,640	(52,799)	(19,103)	1,143,147
Net income																													0	0	0	28,915	0	0	28,915
Other comprehensive income (loss), net of tax																													0	0	0	0	0	(17,389)	(17,389)
Cash dividend declared on preferred stock																													0	0	0	(1,509)	0	0	(1,509)
Cash dividends declared on common stock																													0	0	0	(6,089)	0	0	(6,089)
Stock-based compensation expense																													0	0	1,220	0	0	0	1,220
Balance at Sep. 30, 2022																													$ 110,927	$ 586,946	$ 28,756	$ 510,957	$ (52,799)	$ (36,492)	$ 1,148,295