Condensed Consolidated Statements of Changes In Shareholders' Equity (Unaudited) - USD ($) $ in Thousands		Total	Common Stock	Retained Earnings (Accumulated Deficit)		Accumulated Other Comprehensive Income (Loss)
Beginning balance (in shares) at Dec. 31, 2021	[1]		129,065,476
Beginning balance at Dec. 31, 2021		$ 2,749,270	$ 3,444,849	$ (697,338)		$ 1,759
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		91,157		91,157
Other comprehensive income (loss), net of tax		(185,515)				(185,515)
Stock-based compensation		2,454	$ 2,454
Stock repurchased and retired (in shares)	[1]		(116,057)
Stock repurchased and retired		(4,037)	$ (4,037)
Issuances of common stock under stock plans (in shares)	[1]		319,442
Issuances of common stock under stock plans		0	$ 0
Cash dividends on common stock		(45,731)		(45,731)	[1]
Ending balance (in shares) at Mar. 31, 2022	[1]		129,268,861
Ending balance at Mar. 31, 2022		2,607,598	$ 3,443,266	(651,912)		(183,756)
Beginning balance (in shares) at Dec. 31, 2021	[1]		129,065,476
Beginning balance at Dec. 31, 2021		2,749,270	$ 3,444,849	(697,338)		1,759
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		253,788
Other comprehensive income (loss), net of tax		(451,319)
Ending balance (in shares) at Sep. 30, 2022	[1]		129,320,148
Ending balance at Sep. 30, 2022		2,417,514	$ 3,448,007	(580,933)		(449,560)
Beginning balance (in shares) at Mar. 31, 2022	[1]		129,268,861
Beginning balance at Mar. 31, 2022		2,607,598	$ 3,443,266	(651,912)		(183,756)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		78,591		78,591
Other comprehensive income (loss), net of tax		(124,391)				(124,391)
Stock-based compensation		2,283	$ 2,283
Stock repurchased and retired (in shares)	[1]		(2,542)
Stock repurchased and retired		(72)	$ (72)
Issuances of common stock under stock plans (in shares)	[1]		51,455
Issuances of common stock under stock plans		54	$ 54
Cash dividends on common stock		(45,787)		(45,787)	[1]
Ending balance (in shares) at Jun. 30, 2022	[1]		129,317,774
Ending balance at Jun. 30, 2022		2,518,276	$ 3,445,531	(619,108)		(308,147)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		84,040		84,040
Other comprehensive income (loss), net of tax		(141,413)				(141,413)
Stock-based compensation		2,517	$ 2,517
Stock repurchased and retired (in shares)	[1]		(1,399)
Stock repurchased and retired		(41)	$ (41)
Issuances of common stock under stock plans (in shares)	[1]		3,773
Issuances of common stock under stock plans		0	$ 0
Cash dividends on common stock		(45,865)		(45,865)	[1]
Ending balance (in shares) at Sep. 30, 2022	[1]		129,320,148
Ending balance at Sep. 30, 2022		2,417,514	$ 3,448,007	(580,933)		(449,560)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		82,964		82,964
Other comprehensive income (loss), net of tax		22,696				22,696
Stock-based compensation		2,499	$ 2,499
Stock repurchased and retired (in shares)	[1]		(382)
Stock repurchased and retired		(13)	$ (13)
Issuances of common stock under stock plans (in shares)	[1]		1,196
Issuances of common stock under stock plans		0	$ 0
Cash dividends on common stock		$ (45,834)		(45,834)	[1]
Ending balance (in shares) at Dec. 31, 2022	[1]	129,320,962	129,320,962
Ending balance at Dec. 31, 2022		$ 2,479,826	$ 3,450,493	(543,803)		(426,864)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		(14,038)		(14,038)
Other comprehensive income (loss), net of tax		126,730				126,730
Stock-based compensation		5,644	$ 5,644
Stock repurchased and retired (in shares)	[1]		(215,229)
Stock repurchased and retired		(5,216)	$ (5,216)
Issuances of common stock under stock plans (in shares)	[1]		460,399
Issuances of common stock under stock plans		$ 0	$ 0
Stock related to Merger (in shares)	[1]	78,863,112
Stock related to the Merger		$ 2,337,632
Cash dividends on common stock		(45,855)		(45,855)
Ending balance (in shares) at Mar. 31, 2023	[1]		208,429,244
Ending balance at Mar. 31, 2023		$ 4,884,723	$ 5,788,553	(603,696)		(300,134)
Beginning balance (in shares) at Dec. 31, 2022	[1]	129,320,962	129,320,962
Beginning balance at Dec. 31, 2022		$ 2,479,826	$ 3,450,493	(543,803)		(426,864)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		255,184
Other comprehensive income (loss), net of tax		$ (253,565)
Ending balance (in shares) at Sep. 30, 2023		208,575,479	208,575,479
Ending balance at Sep. 30, 2023		$ 4,632,162	$ 5,798,167	(485,576)		(680,429)
Beginning balance (in shares) at Mar. 31, 2023	[1]		208,429,244
Beginning balance at Mar. 31, 2023		4,884,723	$ 5,788,553	(603,696)		(300,134)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		133,377		133,377
Other comprehensive income (loss), net of tax		(118,628)				(118,628)
Stock-based compensation		3,335	$ 3,335
Stock repurchased and retired (in shares)	[1]		(32,727)
Stock repurchased and retired		(742)	$ (742)
Issuances of common stock under stock plans (in shares)	[1]		117,122
Issuances of common stock under stock plans		0	$ 0
Stock related to the Merger		1,646
Cash dividends on common stock		(75,523)		(75,523)
Ending balance (in shares) at Jun. 30, 2023	[1]		208,513,639
Ending balance at Jun. 30, 2023		4,828,188	$ 5,792,792	(545,842)		(418,762)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		135,845		135,845
Other comprehensive income (loss), net of tax		(261,667)				(261,667)
Stock-based compensation		4,338	$ 4,338
Stock repurchased and retired (in shares)			(7,072)
Stock repurchased and retired		(148)	$ (148)
Issuances of common stock under stock plans (in shares)			10,472
Issuances of common stock under stock plans		0	$ 0
Issuances of common stock under the employee stock purchase plan (In Shares)			58,440
Issuances of common stock under the employee stock purchase plan		1,185	$ 1,185
Cash dividends on common stock		$ (75,579)		(75,579)
Ending balance (in shares) at Sep. 30, 2023		208,575,479	208,575,479
Ending balance at Sep. 30, 2023		$ 4,632,162	$ 5,798,167	$ (485,576)		$ (680,429)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances of common stock under the employee stock purchase plan		$ 1,185	$ 1,185

[1] Periods prior to February 28, 2023 have been restated as a result of the adjustment to common shares outstanding based on the exchange ratio from the Merger of 0.5958.