Business Combinations Pro Forma Information (Details) - USD ($) $ in Thousands			1 Months Ended	3 Months Ended	12 Months Ended
	Dec. 14, 2023	Oct. 03, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022		Dec. 31, 2021
Business Acquisition [Line Items]
Interest income					$ 370,172	$ 282,218	[1]	$ 175,505
Noninterest Income					169,199	(80,447)	[1]	19,562
Earnings (losses) from investments in unconsolidated entities					(855)	(63,614)	[1]	58,104
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest					87,898	(70,869)	[1]	140,556
Bargain purchase gain					28,175	7,932		0
Amortization of Intangible Assets					602	225
Income tax expense (benefit)					457	(17,716)	[1]	3,144
Pro Forma
Business Acquisition [Line Items]
Interest income					421,607	325,338		179,432
Noninterest Income					150,279	(43,348)		123,508
Earnings (losses) from investments in unconsolidated entities					(855)	(63,615)		44,217
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest					43,863	(79,685)		168,280
Adjustment to Pro Forma Revenue						(37,100)		13,900
Amortization of Intangible Assets						400		1,000
Income tax expense (benefit)						2,900
Longbridge Financial LLC [Member]
Business Acquisition [Line Items]
Interest income				$ 2,859	18,913
Noninterest Income				$ 39,935	$ 118,512
Bargain purchase gain		$ 7,932
Longbridge Financial LLC [Member] | Pro Forma
Business Acquisition [Line Items]
Bargain purchase gain								$ 7,900
Arlington Asset Investment Corp.
Business Acquisition [Line Items]
Interest income			$ 2,192
Noninterest Income			$ (1,110)
Bargain purchase gain	$ 28,175
Arlington Asset Investment Corp. | Pro Forma
Business Acquisition [Line Items]
Bargain purchase gain						$ 28,200

[1] Conformed to current period presentation.