Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total		Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent	Treasury Stock, Common [Member]
Balance, beginning of period at Dec. 31, 2023			$ 685,000	$ 16,749	$ 1,905,097	$ 3,398,610	$ (74,326)	$ (636,699)
Unit amortization, net of forfeitures					80,969
Distributions under employee plans					(149,698)	(90,845)		138,669
Other					193	442
Net Income (Loss)	$ 328,869					328,869
Dividends declared, Common						(97,420)
Dividends declared, Preferred						(18,641)
Unrealized gains/(losses) on securities, net of tax	(8,237)	[1],[2]					(8,237)
Foreign currency translation adjustment, net of tax	(2,218)	[1]					(2,218)
Common stock repurchased	(78,306)							(78,307)
Balance, end of period at Jun. 30, 2024	5,398,207		685,000	16,749	1,836,561	3,521,015	(84,781)	(576,337)
Balance, beginning of period at Mar. 31, 2024			685,000	16,749	1,805,717	3,414,744	(84,174)	(564,095)
Unit amortization, net of forfeitures					38,812
Distributions under employee plans					(7,893)	(885)		5,355
Other					(75)	(5)
Net Income (Loss)	165,294					165,294
Dividends declared, Common						(48,812)
Dividends declared, Preferred						(9,321)
Unrealized gains/(losses) on securities, net of tax	(33)	[1],[2]					(33)
Foreign currency translation adjustment, net of tax	(574)	[1]					(574)
Common stock repurchased	(17,597)							(17,597)
Balance, end of period at Jun. 30, 2024	5,398,207		685,000	16,749	1,836,561	3,521,015	(84,781)	(576,337)
Balance, beginning of period at Dec. 31, 2024	5,686,770		685,000	16,749	1,895,568	3,794,609	(75,638)	(629,518)
Unit amortization, net of forfeitures					81,737
Distributions under employee plans					(139,365)	(65,377)		84,175
Other					(157)	54
Net Income (Loss)	208,047					208,047
Dividends declared, Common						(105,485)
Dividends declared, Preferred						(18,641)
Unrealized gains/(losses) on securities, net of tax	29,830	[1],[2]					29,830
Foreign currency translation adjustment, net of tax	11,608	[1]					11,608
Common stock repurchased	(176,211)							(176,211)
Balance, end of period at Jun. 30, 2025	5,596,985		685,000	16,749	1,837,783	3,813,207	(34,200)	(721,554)
Balance, beginning of period at Mar. 31, 2025			685,000	16,749	1,811,493	3,720,504	(51,751)	(643,809)
Unit amortization, net of forfeitures					34,849
Distributions under employee plans					(8,453)	(324)		5,293
Other					(106)
Net Income (Loss)	155,055					155,055
Dividends declared, Common						(52,707)
Dividends declared, Preferred						(9,321)
Unrealized gains/(losses) on securities, net of tax	9,016	[1],[2]					9,016
Foreign currency translation adjustment, net of tax	8,535	[1]					8,535
Common stock repurchased	(83,038)							(83,038)
Balance, end of period at Jun. 30, 2025	$ 5,596,985		$ 685,000	$ 16,749	$ 1,837,783	$ 3,813,207	$ (34,200)	$ (721,554)

[1] Net of a tax expense of $6.7 million and tax benefit of $0.2 million for the three months ended June 30, 2025 and 2024, respectively. Net of a tax expense of $13.8 million and tax benefit of $3.7 million for the six months ended June 30, 2025 and 2024, respectively.

[2] There were no reclassifications to earnings for the six months ended June 30, 2025 and 2024.