Residential Investor Loans - Schedule of Classifications and Carrying Values of Residential Investor Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Unsecuritized Bridge
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	$ 15,000	$ 14,000
Held-for-sale at fair value
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	396,566	513,353
Held-for-sale at fair value | Unsecuritized Term
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	72,541	202,422
Held-for-sale at fair value | Securitized Term
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	0	0
Held-for-sale at fair value | Unsecuritized Bridge
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	324,025	310,931
Held-for-sale at fair value | Securitized Bridge
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	0	0
Held-for-investment at fair value
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	2,913,979	3,103,311
Held-for-investment at fair value | Unsecuritized Term
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	0	0
Held-for-investment at fair value | Securitized Term
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	1,833,827	1,985,910
Held-for-investment at fair value | Unsecuritized Bridge
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	0	0
Held-for-investment at fair value | Securitized Bridge
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	1,080,152	1,117,401
Total Residential Investor Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	3,310,545	3,616,664
Total Residential Investor Loans | Unsecuritized Term
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	72,541	202,422
Total Residential Investor Loans | Securitized Term
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	1,833,827	1,985,910
Total Residential Investor Loans | Unsecuritized Bridge
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	324,025	310,931
Total Residential Investor Loans | Securitized Bridge
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	$ 1,080,152	$ 1,117,401