CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands		Total	Cumulative Effect, Period Of Adoption, Adjustment	Various Stock Compensation Plans And Agreements	Common Stock	Common Stock Various Stock Compensation Plans And Agreements	Common Stock and Additional Paid-in Capital	Retained Earnings	Retained Earnings Cumulative Effect, Period Of Adoption, Adjustment	Treasury Stock	Treasury Stock Various Stock Compensation Plans And Agreements	AOCI, Net of Tax
Beginning balance (in shares) at Dec. 31, 2021					141,907,954
Beginning balance at Dec. 31, 2021		$ 5,837,218					$ 1,893,725	$ 4,683,659		$ (649,785)		$ (90,381)
Increase (Decrease) in Stockholders' Equity
Net income		237,652						237,652
Other comprehensive loss		(304,544)										(304,544)
Issuance of common stock pursuant to various stock compensation plans and agreements (in shares)					588,114
Issuance of common stock pursuant to various stock compensation plans and agreements		9,317					9,317
Repurchase of common stock pursuant to various stock compensation plans (in shares)						(239,548)
Repurchase of common stock pursuant to various stock compensation plans and agreements				$ (18,597)							$ (18,597)
Cash dividends on common stock		(57,590)						(57,590)
Ending balance (in shares) at Mar. 31, 2022					142,256,520
Ending balance at Mar. 31, 2022		5,703,456					1,903,042	4,863,721		(668,382)		(394,925)
Beginning balance (in shares) at Dec. 31, 2022					140,947,846
Beginning balance at Dec. 31, 2022		5,984,612					1,936,557	5,582,546		(768,862)		(765,629)
Beginning balance (Accounting Standards Update 2022-02) at Dec. 31, 2022	[1]		$ (4,262)						$ (4,262)
Increase (Decrease) in Stockholders' Equity
Net income		322,439						322,439
Other comprehensive loss		85,635										85,635
Issuance of common stock pursuant to various stock compensation plans and agreements (in shares)					740,722
Issuance of common stock pursuant to various stock compensation plans and agreements		11,130					11,130
Repurchase of common stock pursuant to various stock compensation plans (in shares)						(292,768)
Repurchase of common stock pursuant to various stock compensation plans and agreements				$ (21,791)							$ (21,791)
Cash dividends on common stock		(68,432)						(68,432)
Ending balance (in shares) at Mar. 31, 2023					141,395,800
Ending balance at Mar. 31, 2023		$ 6,309,331					$ 1,947,687	$ 5,832,291		$ (790,653)		$ (679,994)

[1] Represents the change in the Company’s allowance for loan losses as a result of the adoption of Accounting Standards Update (“ASU”) 2022-02, Financial Instruments - Credit Losses (Topic 326): Troubled Debt Restructurings and the Vintage Disclosures on January 1, 2023. Refer to Note 2 — Current Accounting Developments and Summary of Significant Accounting Policies in this Form 10-Q for additional information.