Secured Financing Agreements - Schedule of Secured Financing Agreements (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Assets Sold under Agreements to Repurchase [Line Items]
Secured financing agreements outstanding principal secured by:	$ 2,824,371	$ 2,432,115
Repurchase Agreements
Assets Sold under Agreements to Repurchase [Line Items]
Secured financing agreements outstanding principal secured by:	2,842,160	2,444,091
Average balance of Secured financing agreements secured by:	2,947,221	2,836,314
Repurchase Agreements | Asset Pledged as Collateral
Assets Sold under Agreements to Repurchase [Line Items]
MBS pledged as collateral at fair value on Secured financing agreements:	4,086,097	3,539,416
Repurchase Agreements | Agency RMBS
Assets Sold under Agreements to Repurchase [Line Items]
Secured financing agreements outstanding principal secured by:	402,644	0
Average balance of Secured financing agreements secured by:	$ 540,735	1,551
Average borrowing rate of Secured financing agreements secured by:	4.83%
Average remaining maturity of Secured financing agreements secured by:	16 days
Average original maturity of Secured financing agreements secured by:	43 days
Repurchase Agreements | Agency RMBS | Asset Pledged as Collateral
Assets Sold under Agreements to Repurchase [Line Items]
MBS pledged as collateral at fair value on Secured financing agreements:	$ 423,768	0
Repurchase Agreements | Agency CMBS
Assets Sold under Agreements to Repurchase [Line Items]
Secured financing agreements outstanding principal secured by:	29,123	68,502
Average balance of Secured financing agreements secured by:	$ 35,555	$ 139,746
Average borrowing rate of Secured financing agreements secured by:	4.77%	5.60%
Average remaining maturity of Secured financing agreements secured by:	8 days	32 days
Average original maturity of Secured financing agreements secured by:	33 days	86 days
Repurchase Agreements | Agency CMBS | Asset Pledged as Collateral
Assets Sold under Agreements to Repurchase [Line Items]
MBS pledged as collateral at fair value on Secured financing agreements:	$ 29,146	$ 74,345
Repurchase Agreements | Non-agency MBS and Loans held for investment
Assets Sold under Agreements to Repurchase [Line Items]
Secured financing agreements outstanding principal secured by:	2,410,393	2,375,589
Average balance of Secured financing agreements secured by:	$ 2,370,931	$ 2,695,017
Average borrowing rate of Secured financing agreements secured by:	6.78%	7.56%
Average remaining maturity of Secured financing agreements secured by:	237 days	418 days
Average original maturity of Secured financing agreements secured by:	267 days	445 days
Repurchase Agreements | Non-agency MBS and Loans held for investment | Asset Pledged as Collateral
Assets Sold under Agreements to Repurchase [Line Items]
MBS pledged as collateral at fair value on Secured financing agreements:	$ 3,633,183	$ 3,465,071