Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands		Total	Cumulative Effect, Period of Adoption, Adjustment	Preferred Stock	Common Stock	Additional Paid-in Capital	Treasury Stock	AOCI	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Noncontrolling Interest
Beginning balance at Dec. 31, 2020		$ 5,161,334		$ 537,145	$ 168,133	$ 3,851,208	$ (731,806)	$ 158,635	$ 1,178,019		$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		760,467							760,467
Other comprehensive income (loss), net of income taxes		(240,956)						(240,956)
Cash dividends declared on common stock		(193,695)							(193,695)
Cash dividends declared on preferred stock	[1]	(33,163)							(33,163)
Repurchases of common stock including costs to repurchase		(199,932)			(199,900)		(199,932)
Issuance of common stock for earnout payment		5,080				4,955	125
Restricted share unit vesting and taxes paid related to net share settlement		(7,544)			355	(6,254)			(1,645)
Stock options exercised, net		19,110			896	18,214
Warrants exercised with net settlement and common stock reissued		0				(113)	116		(3)
Share-based compensation expense		26,099				26,099
Ending balance at Dec. 31, 2021		$ 5,296,800		537,145	169,384	3,894,109	(931,497)	(82,321)	1,709,980		0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting standards update [Extensible Enumeration]		Accounting Standards Update 2023-02 [Member]
Net income		$ 757,902							757,902
Other comprehensive income (loss), net of income taxes		(1,359,796)						(1,359,796)
Cash dividends declared on common stock		(197,762)							(197,762)
Cash dividends declared on preferred stock	[1]	(33,163)							(33,163)
Repurchases of common stock including costs to repurchase		(12,987)			(13,000)		(12,987)
Restricted share unit vesting and taxes paid related to net share settlement		(9,877)			399	(8,089)			(2,187)
Stock options exercised, net		7,054			358	6,696
Share-based compensation expense		27,630				27,630
Ending balance at Dec. 31, 2022		4,475,801	$ (297)	537,145	170,141	3,920,346	(944,484)	(1,442,117)	2,234,770	$ (297)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		542,141							543,705		(1,564)
Other comprehensive income (loss), net of income taxes		325,044						325,044
Cash dividends declared on common stock		(222,329)							(222,329)
Cash dividends declared on preferred stock	[1]	(35,950)							(35,950)
Restricted share unit vesting and taxes paid related to net share settlement		(11,084)			527	(8,938)			(2,673)
Stock options exercised, net		13,025			692	12,333
Share-based compensation expense		32,078				32,078
Acquisition of noncontrolling interest		25,719									25,719
Ending balance at Dec. 31, 2023		$ 5,144,148		$ 537,145	$ 171,360	$ 3,955,819	$ (944,484)	$ (1,117,073)	$ 2,517,226		$ 24,155

[1] (1)    For the years ended December 31, 2022 and 2021, dividends per share were $1.58 and $1.47 for Series D and Series E Preferred Stock, respectively.