CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment [Member]	Common Stock	Additional paid-in capital	Unearned compensation	Retained (deficit) earnings	Retained (deficit) earnings Cumulative Effect, Period of Adoption, Adjustment [Member]	Accumulated other comprehensive (loss) income	Treasury stock
Beginning balance, common stock (in shares) at Dec. 31, 2020			50,833,000
Beginning balance at Dec. 31, 2020	$ 1,187,773		$ 528	$ 1,427,239	$ (6,245)	$ (233,344)		$ 30,871	$ (31,276)
Comprehensive income:
Net income	118,664					118,664
Other net comprehensive (loss)	(34,114)							(34,114)
Total comprehensive income/(loss)	84,550					(118,664)		(34,114)
Cash dividends declared on common shares	(24,553)					(24,553)
Treasury stock purchased (in shares)			(2,500,000)
Treasury stock purchased	(68,712)					0			(68,712)
Forfeited shares (in shares)			(113,000)
Forfeited shares	0			90	2,644				(2,734)
Exercise of stock options (in shares)			20,000
Exercise of stock options	417					(150)			567
Restricted stock grants (in shares)			476,000
Restricted stock grants	0			(3,898)	(9,625)				13,523
Stock-based compensation	4,170				4,170
Other, net (in shares)			(49,000)
Other, net	(1,210)			14		0			(1,224)
Ending balance, common stock (in shares) at Dec. 31, 2021			48,667,000
Ending balance at Dec. 31, 2021	1,182,435		$ 528	1,423,445	(9,056)	(139,383)		(3,243)	(89,856)
Comprehensive income:
Net income	92,533					92,533
Other net comprehensive (loss)	(177,809)							(177,809)
Total comprehensive income/(loss)	$ (85,276)					92,533		(177,809)
Accounting Standards Update [Extensible Enumeration]	Accounting Standards Update 2016-13 [Member]
Cash dividends declared on common shares	$ (24,527)					(24,527)
Treasury stock purchased (in shares)			(4,485,000)
Treasury stock purchased	(124,519)								(124,519)
Forfeited shares (in shares)			(98,000)
Forfeited shares	0			189	2,560	0			(2,749)
Exercise of stock options (in shares)			12,000
Exercise of stock options	270					(51)			321
Restricted stock grants (in shares)			328,000
Restricted stock grants	0			537	(9,440)				8,903
Stock-based compensation	7,338				7,338
Other, net (in shares)			(63,000)
Other, net	$ (1,659)			12					(1,671)
Ending balance, common stock (in shares) at Dec. 31, 2022	44,361,222		44,361,000
Ending balance at Dec. 31, 2022	$ 954,062	$ 401	$ 528	1,424,183	(8,598)	(71,428)	$ 401	(181,052)	(209,571)
Comprehensive income:
Net income	69,598					69,598
Other net comprehensive (loss)	38,036							38,036
Total comprehensive income/(loss)	107,634					69,598		38,036
Cash dividends declared on common shares	(31,707)					(31,707)
Treasury stock purchased (in shares)			(1,135,000)
Treasury stock purchased	(23,844)								(23,844)
Forfeited shares (in shares)			(103,000)
Forfeited shares	0			(184)	2,657				(2,473)
Exercise of stock options (in shares)			0
Exercise of stock options	0					0			0
Restricted stock grants (in shares)			446,000
Restricted stock grants	0			(568)	(11,666)				12,234
Stock-based compensation	7,498				7,498
Other, net (in shares)			(68,000)
Other, net	$ (1,823)			(158)					(1,665)
Ending balance, common stock (in shares) at Dec. 31, 2023	43,500,872		43,501,000
Ending balance at Dec. 31, 2023	$ 1,012,221		$ 528	$ 1,423,273	$ (10,109)	$ (33,136)		$ (143,016)	$ (225,319)