Consolidated Statements of Changes in Equity - USD ($) shares in Thousands, $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Cumulative Effect, Period of Adoption, Adjusted Balance	Common Stock [Member]	Common Stock [Member] Cumulative Effect, Period of Adoption, Adjusted Balance	Capital Surplus [Member]	Capital Surplus [Member] Cumulative Effect, Period of Adoption, Adjusted Balance	Retained Earnings [Member]	Retained Earnings [Member] Cumulative Effect, Period of Adoption, Adjustment	Retained Earnings [Member] Cumulative Effect, Period of Adoption, Adjusted Balance	Treasury Stock [Member]	Treasury Stock [Member] Cumulative Effect, Period of Adoption, Adjusted Balance	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Other Comprehensive Income (Loss) [Member] Cumulative Effect, Period of Adoption, Adjusted Balance	Total Shareholders' Equity [Member]	Total Shareholders' Equity [Member] Cumulative Effect, Period of Adoption, Adjustment	Total Shareholders' Equity [Member] Cumulative Effect, Period of Adoption, Adjusted Balance	Non-Controlling Interests [Member]	Non-Controlling Interests [Member] Cumulative Effect, Period of Adoption, Adjusted Balance
Balance, beginning of period (in shares) at Dec. 31, 2018				75,711	75,711						3,589	3,589
Balance, beginning of period at Dec. 31, 2018	$ 4,443,045		$ 4,445,907	$ 5	$ 5	$ 1,334,030	$ 1,334,030	$ 3,369,654		$ 3,372,516	$ (198,995)	$ (198,995)	$ (72,585)	$ (72,585)	$ 4,432,109		$ 4,434,971	$ 10,936	$ 10,936
Balance, beginning of period (Accounting Standards Update 2016-02) at Dec. 31, 2018		$ 2,862							$ 2,862							$ 2,862
Net income	500,685							500,758							500,758			(73)
Other comprehensive income (loss), net	177,508												177,508		177,508
Repurchase of common stock (in shares)											1,572
Repurchase of common stock	(129,483)										$ (129,483)				(129,483)
Stock options exercised (in shares)				27
Stock options exercised	1,421					1,421									1,421
Non-vested shares awarded, net (in shares)				21
Vesting of non-vested shares (in shares)											18
Vesting of non-vested shares	(1,428)										$ (1,428)				(1,428)
Share-based compensation	15,544					15,544									15,544
Cash dividends on common stock	(143,496)							(143,496)							(143,496)
Capital calls and distributions, net	2,739																	2,739
Balance, end of period (in shares) at Dec. 31, 2019				75,759	75,759						5,179	5,179
Balance, end of period at Dec. 31, 2019	4,863,919		4,817,223	$ 5	$ 5	1,350,995	1,350,995	3,729,778		3,683,082	$ (329,906)	$ (329,906)	104,923	104,923	4,855,795		4,809,099	8,124	8,124
Balance, end of period (Accounting Standards Update 2016-13) at Dec. 31, 2019		$ (46,696)							$ (46,696)							$ (46,696)
Net income	435,071							435,030							435,030			41
Other comprehensive income (loss), net	230,945												230,945		230,945
Repurchase of common stock (in shares)											1,107
Repurchase of common stock	(75,830)										$ (75,830)				(75,830)
Stock options exercised (in shares)				12
Stock options exercised	675					675									675
Non-vested shares awarded, net (in shares)				224
Vesting of non-vested shares (in shares)											72
Vesting of non-vested shares	(5,608)										$ (5,608)				(5,608)
Share-based compensation	16,392					16,392									16,392
Cash dividends on common stock	(144,437)							(144,437)							(144,437)
Capital calls and distributions, net	17,130																	17,130
Balance, end of period (in shares) at Dec. 31, 2020				75,995	75,995						6,358	6,358
Balance, end of period at Dec. 31, 2020	5,291,561		$ 5,291,561	$ 5	$ 5	1,368,062	$ 1,368,062	3,973,675		$ 3,973,675	$ (411,344)	$ (411,344)	335,868	$ 335,868	5,266,266		$ 5,266,266	25,295	$ 25,295
Net income	616,325							618,121							618,121			(1,796)
Other comprehensive income (loss), net	(263,497)												(263,497)		(263,497)
Repurchase of common stock (in shares)											1,360
Repurchase of common stock	(117,938)										$ (117,938)				(117,938)
Stock options exercised (in shares)				17
Stock options exercised	973					973									973
Non-vested shares awarded, net (in shares)				242
Vesting of non-vested shares (in shares)											68
Vesting of non-vested shares	(5,847)										$ (5,847)				(5,847)
Share-based compensation	9,759					9,759									9,759
Cash dividends on common stock	(144,105)							(144,105)							(144,105)
Capital calls and distributions, net	18,860																	18,860
Balance, end of period (in shares) at Dec. 31, 2021				76,254							7,786
Balance, end of period at Dec. 31, 2021	$ 5,368,371			$ 5		$ 1,378,794		$ 4,447,691			$ (535,129)		$ 72,371		$ 5,363,732			$ 4,639