Condensed Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Previously Reported [Member]	Common Stock [Member]	Common Stock [Member] Previously Reported [Member]	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] Previously Reported [Member]	Retained Earnings [Member]	Retained Earnings [Member] Previously Reported [Member]	Accumulated Other Comprehensive Income (Loss), net [Member]	Accumulated Other Comprehensive Income (Loss), net [Member] Previously Reported [Member]	Treasury Stock [Member]	Treasury Stock [Member] Previously Reported [Member]
Beginning balance at Dec. 31, 2020	$ 1,068,617		$ 113,915		$ 494,683		$ 596,614		$ 17,233		$ (153,828)
Beginning balance, shares at Dec. 31, 2020			96,130,751
Net Income	103,481						103,481
Total other comprehensive (loss) income	(13,717)								(13,717)
Dividends, declared (USD per share)	(32,673)						(32,673)
Treasury stock acquired	(15,985)										(15,985)
Treasury stock acquired, shares			(1,194,062)
Stock Issued During Period, Value, Treasury Stock Reissued	2,264				771		0				1,493
Stock Issued During Period, Shares, Treasury Stock Reissued			173,907
Restricted stock	868		$ 0		475		0				393
Restricted stock, shares			99,089
Stock Issued During Period, Value, Treasury Stock Reissued	2,042
Ending balance at Sep. 30, 2021	$ 1,112,855		$ 113,915		495,929		667,422		3,516		(167,927)
Ending balance, shares at Sep. 30, 2021			95,209,685
Cash Dividends Declared per Common Share (in dollars per share)	$ 0.340
Beginning balance at Jun. 30, 2021		$ 1,106,419		$ 113,915		$ 495,899		$ 644,362		$ 7,115		$ (154,872)
Beginning balance, shares at Jun. 30, 2021				96,201,628
Net Income	$ 34,092						34,092
Total other comprehensive (loss) income	(3,599)								(3,599)
Dividends, declared (USD per share)	(11,032)						(11,032)
Treasury stock acquired	(13,327)										(13,327)
Treasury stock acquired, shares			(997,943)
Stock Issued During Period, Value, Treasury Stock Reissued	0				0		0				0
Stock Issued During Period, Shares, Treasury Stock Reissued			0
Restricted stock	302		$ 0		30		0				272
Restricted stock, shares			6,000
Ending balance at Sep. 30, 2021	$ 1,112,855		$ 113,915		495,929		667,422		3,516		(167,927)
Ending balance, shares at Sep. 30, 2021			95,209,685
Cash Dividends Declared per Common Share (in dollars per share)	$ 0.115
Beginning balance at Dec. 31, 2021	$ 1,109,372		$ 113,915		496,121		691,260		(8,768)		(183,156)
Beginning balance, shares at Dec. 31, 2021	94,233,152		94,233,152
Net Income	$ 92,448						92,448
Total other comprehensive (loss) income	(133,521)								(133,521)
Dividends, declared (USD per share)	(33,373)						(33,373)
Treasury stock acquired	(15,598)										(15,598)
Treasury stock acquired, shares			(1,132,577)
Stock Issued During Period, Value, Treasury Stock Reissued	2,192				580		0				1,612
Stock Issued During Period, Shares, Treasury Stock Reissued			174,989
Restricted stock	1,055		$ 0		730		0				325
Restricted stock, shares			101,500
Stock Issued During Period, Value, Treasury Stock Reissued	1,947
Ending balance at Sep. 30, 2022	$ 1,022,575		$ 113,915		497,431		750,335		(142,289)		(196,817)
Ending balance, shares at Sep. 30, 2022	93,377,064		93,377,064
Cash Dividends Declared per Common Share (in dollars per share)	$ 0.355
Beginning balance at Jun. 30, 2022	$ 1,049,158		$ 113,915		497,431		727,573		(97,025)		(192,736)
Beginning balance, shares at Jun. 30, 2022			93,705,120
Net Income	33,968						33,968
Total other comprehensive (loss) income	(45,264)								(45,264)
Dividends, declared (USD per share)	(11,206)						(11,206)
Treasury stock acquired	(4,453)										(4,453)
Treasury stock acquired, shares			(326,656)
Stock Issued During Period, Value, Treasury Stock Reissued	0				0		0				0
Stock Issued During Period, Shares, Treasury Stock Reissued			0
Restricted stock	372		$ 0		0		0				372
Restricted stock, shares			(1,400)
Ending balance at Sep. 30, 2022	$ 1,022,575		$ 113,915		$ 497,431		$ 750,335		$ (142,289)		$ (196,817)
Ending balance, shares at Sep. 30, 2022	93,377,064		93,377,064
Cash Dividends Declared per Common Share (in dollars per share)	$ 0.120