Consolidated Statements of Changes in Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Capital Surplus [Member]	Retained Earnings [Member]	Treasury Stock, Common	Accumulated Other Comprehensive Income (Loss) [Member]	Total Shareholders' Equity [Member]	Non-Controlling Interests [Member]
Balance, beginning of period (in shares) at Dec. 31, 2021		76,254			7,786
Balance, beginning 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
Net income	195,310			195,334			195,334	(24)
Other comprehensive income (loss)	(674,999)					(674,999)	(674,999)
Repurchase of common stock (in shares)					770
Repurchase of common stock	(72,478)				$ (72,478)		(72,478)
Stock options exercised (in shares)		1
Stock options exercised	37		37				37
Non-vested shares awarded, net (in shares)		153
Vesting of non-vested shares (in shares)					46
Vesting of non-vested shares	(4,944)				$ (4,944)		(4,944)
Share-based compensation	2,845		2,845				2,845
Cash dividends on common stock	(72,188)			(72,188)			(72,188)
Capital calls and distributions, net	(412)							(412)
Balance, end of period (in shares) at Jun. 30, 2022		76,408			8,602
Balance, end of period at Jun. 30, 2022	4,741,542	$ 5	1,381,676	4,570,837	$ (612,551)	(602,628)	4,737,339	4,203
Balance, beginning of period (in shares) at Mar. 31, 2022		76,412			8,308
Balance, beginning of period at Mar. 31, 2022	4,853,524	$ 5	1,381,666	4,473,884	$ (588,147)	(417,826)	4,849,582	3,942
Net income	132,858			132,846			132,846	12
Other comprehensive income (loss)	(184,802)					(184,802)	(184,802)
Repurchase of common stock (in shares)					294
Repurchase of common stock	(24,404)				$ (24,404)		(24,404)
Stock options exercised (in shares)		0
Stock options exercised	0		0				0
Non-vested shares awarded, net (in shares)		(4)
Vesting of non-vested shares (in shares)					0
Vesting of non-vested shares	0				$ 0		0
Share-based compensation	10		10				10
Cash dividends on common stock	(35,893)			(35,893)			(35,893)
Capital calls and distributions, net	249							249
Balance, end of period (in shares) at Jun. 30, 2022		76,408			8,602
Balance, end of period at Jun. 30, 2022	4,741,542	$ 5	1,381,676	4,570,837	$ (612,551)	(602,628)	4,737,339	4,203
Balance, beginning of period (in shares) at Dec. 31, 2022		76,423			9,465
Balance, beginning of period at Dec. 31, 2022	4,687,358	$ 5	1,390,395	4,824,164	$ (694,960)	(836,955)	4,682,649	4,709
Net income	314,132			313,676			313,676	456
Other comprehensive income (loss)	283					283	283
Repurchase of common stock (in shares)					713
Repurchase of common stock	(67,066)				$ (67,066)		(67,066)
Stock options exercised (in shares)		0
Stock options exercised	0		0				0
Non-vested shares awarded, net (in shares)		169
Vesting of non-vested shares (in shares)					45
Vesting of non-vested shares	(4,695)				$ (4,695)		(4,695)
Share-based compensation	11,114		11,114				11,114
Cash dividends on common stock	(72,107)			(72,107)			(72,107)
Capital calls and distributions, net	(1,622)							(1,622)
Balance, end of period (in shares) at Jun. 30, 2023		76,592			10,223
Balance, end of period at Jun. 30, 2023	4,867,397	$ 5	1,401,509	5,065,733	$ (766,721)	(836,672)	4,863,854	3,543
Balance, beginning of period (in shares) at Mar. 31, 2023		76,556			9,955
Balance, beginning of period at Mar. 31, 2023	4,878,027	$ 5	1,397,096	4,950,176	$ (743,937)	(728,554)	4,874,786	3,241
Net income	151,636			151,308			151,308	328
Other comprehensive income (loss)	(108,118)					(108,118)	(108,118)
Repurchase of common stock (in shares)					266
Repurchase of common stock	(22,590)				$ (22,590)		(22,590)
Stock options exercised (in shares)		0
Stock options exercised	0		0				0
Non-vested shares awarded, net (in shares)		36
Vesting of non-vested shares (in shares)					2
Vesting of non-vested shares	(194)				$ (194)		(194)
Share-based compensation	4,413		4,413				4,413
Cash dividends on common stock	(35,751)			(35,751)			(35,751)
Capital calls and distributions, net	(26)							(26)
Balance, end of period (in shares) at Jun. 30, 2023		76,592			10,223
Balance, end of period at Jun. 30, 2023	$ 4,867,397	$ 5	$ 1,401,509	$ 5,065,733	$ (766,721)	$ (836,672)	$ 4,863,854	$ 3,543