CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Total
Balance at Dec. 31, 2021	$ 1,406	$ 2,527,663	$ 604,534	$ (121,693)		$ 2,656,912
Balance (in shares) at Dec. 31, 2021	127,502,472
Treasury Stock, Value, Beginning Balance at Dec. 31, 2021					$ (354,998)
Increase (Decrease) in Stockholders' Equity
Net Income (Loss)			117,079			117,079
Cash dividends declared			(66,363)			(66,363)
Equity-based awards	$ 3	5,744	(473)		(3,527)	1,747
Equity-based awards (in shares)	239,173
Common stock repurchased					(7,000)	(7,000)
Common stock repurchased (in shares)	(290,558)
Other comprehensive (loss) income, net of tax				(449,764)		(449,764)
Balance at Jun. 30, 2022	$ 1,409	2,533,407	654,777	(571,457)		2,252,611
Balance (in shares) at Jun. 30, 2022	127,451,087
Treasury Stock, Value, Ending Balance at Jun. 30, 2022					(365,525)
Balance at Mar. 31, 2022	$ 1,409	2,530,795	628,642	(517,502)		2,285,149
Balance (in shares) at Mar. 31, 2022	127,686,307
Treasury Stock, Value, Beginning Balance at Mar. 31, 2022					(358,195)
Increase (Decrease) in Stockholders' Equity
Net Income (Loss)			59,360			59,360
Cash dividends declared			(33,212)			(33,212)
Equity-based awards		2,612	(13)		(330)	2,269
Equity-based awards (in shares)	55,338
Common stock repurchased					(7,000)	(7,000)
Common stock repurchased (in shares)	(290,558)
Other comprehensive (loss) income, net of tax				(53,955)		(53,955)
Balance at Jun. 30, 2022	$ 1,409	2,533,407	654,777	(571,457)		2,252,611
Balance (in shares) at Jun. 30, 2022	127,451,087
Treasury Stock, Value, Ending Balance at Jun. 30, 2022					(365,525)
Balance at Dec. 31, 2022	$ 1,410	2,538,336	736,544	(639,254)		$ 2,269,005
Balance (in shares) at Dec. 31, 2022	127,363,327					127,363,327
Treasury Stock, Value, Beginning Balance at Dec. 31, 2022					(368,031)	$ 368,031
Increase (Decrease) in Stockholders' Equity
Net Income (Loss)			129,260			129,260
Cash dividends declared			(66,290)			(66,290)
Common stock issued under Employee Stock Purchase Plan		163				163
Common stock issued under Employee Stock Purchase Plan (in shares)	9,548
Equity-based awards	$ 3	4,727	(469)		(3,179)	1,082
Equity-based awards (in shares)	235,162
Other comprehensive (loss) income, net of tax				26,518		26,518
Balance at Jun. 30, 2023	$ 1,413	2,543,226	799,045	(612,736)	(371,210)	$ 2,359,738
Balance (in shares) at Jun. 30, 2023	127,608,037					127,608,037
Treasury Stock, Value, Ending Balance at Jun. 30, 2023					(371,210)	$ 371,210
Balance at Mar. 31, 2023	$ 1,413	2,540,653	769,791	(611,679)		2,329,012
Balance (in shares) at Mar. 31, 2023	127,573,680
Treasury Stock, Value, Beginning Balance at Mar. 31, 2023					(371,166)
Increase (Decrease) in Stockholders' Equity
Net Income (Loss)			62,442			62,442
Cash dividends declared			(33,175)			(33,175)
Common stock issued under Employee Stock Purchase Plan		163				163
Common stock issued under Employee Stock Purchase Plan (in shares)	9,548
Equity-based awards		2,410	(13)		(44)	2,353
Equity-based awards (in shares)	24,809
Other comprehensive (loss) income, net of tax				(1,057)		(1,057)
Balance at Jun. 30, 2023	$ 1,413	$ 2,543,226	$ 799,045	$ (612,736)	(371,210)	$ 2,359,738
Balance (in shares) at Jun. 30, 2023	127,608,037					127,608,037
Treasury Stock, Value, Ending Balance at Jun. 30, 2023					$ (371,210)	$ 371,210