CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss)	Treasury Stock, Common [Member]	Total
Balance at Dec. 31, 2022	$ 1,410	$ 2,538,336	$ 736,544	$ (639,254)	$ (368,031)	$ 2,269,005
Balance (in shares) at Dec. 31, 2022	127,363,327
Increase (Decrease) in Stockholders' Equity
Net Income (Loss)			187,481			187,481
Cash dividends declared			(99,468)			(99,468)
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	7,160	(662)		(3,196)	3,305
Equity-based awards (in shares)	237,059
Other comprehensive income, net of tax				(9,477)		(9,477)
Balance at Sep. 30, 2023	$ 1,413	2,545,659	823,895	(648,731)	(371,227)	2,351,009
Balance (in shares) at Sep. 30, 2023	127,609,934
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
Increase (Decrease) in Stockholders' Equity
Net Income (Loss)			58,221			58,221
Cash dividends declared			(33,178)			(33,178)
Equity-based awards		2,433	(193)		(17)	2,223
Equity-based awards (in shares)	1,897
Other comprehensive income, net of tax				(35,995)		(35,995)
Balance at Sep. 30, 2023	$ 1,413	2,545,659	823,895	(648,731)	(371,227)	2,351,009
Balance (in shares) at Sep. 30, 2023	127,609,934
Balance at Dec. 31, 2023	$ 1,413	2,548,250	837,859	(530,210)	(371,246)	$ 2,486,066
Balance (in shares) at Dec. 31, 2023	127,618,761					127,618,761
Increase (Decrease) in Stockholders' Equity
Net Income (Loss)			177,633			$ 177,633
Cash dividends declared			(99,655)			(99,655)
Common stock issued under Employee Stock Purchase Plan		141				141
Common stock issued under Employee Stock Purchase Plan (in shares)	7,155
Equity-based awards	$ 4	9,767	(775)		(2,699)	6,297
Equity-based awards (in shares)	260,251
Other comprehensive income, net of tax				77,552		77,552
Balance at Sep. 30, 2024	$ 1,417	2,558,158	915,062	(452,658)	(373,945)	$ 2,648,034
Balance (in shares) at Sep. 30, 2024	127,886,167					127,886,167
Balance at Jun. 30, 2024	$ 1,417	2,554,795	887,176	(519,132)	(373,944)	$ 2,550,312
Balance (in shares) at Jun. 30, 2024	127,879,012
Increase (Decrease) in Stockholders' Equity
Net Income (Loss)			61,492			61,492
Cash dividends declared			(33,250)			(33,250)
Common stock issued under Employee Stock Purchase Plan		141				141
Common stock issued under Employee Stock Purchase Plan (in shares)	7,155
Equity-based awards		3,222	(356)		(1)	2,865
Other comprehensive income, net of tax				66,474		66,474
Balance at Sep. 30, 2024	$ 1,417	$ 2,558,158	$ 915,062	$ (452,658)	$ (373,945)	$ 2,648,034
Balance (in shares) at Sep. 30, 2024	127,886,167					127,886,167