Residential Investor Loans - Schedule of Classifications and Carrying Values of Residential Investor Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Residential Investor Bridge, Unsecuritized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	$ 25,000
Legacy Bridge Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	886,000
Legacy Term Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	50,000
Held-for-sale at fair value
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	1,124,072	$ 237,224
Held-for-sale at fair value | Residential Investor Term, Unsecuritized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	174,808	158,637
Held-for-sale at fair value | Residential Investor Term, Securitized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	0	0
Held-for-sale at fair value | Residential Investor Bridge, Unsecuritized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	949,264	78,587
Held-for-sale at fair value | Residential Investor Bridge, Securitized
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	3,215,096	4,349,866
Held-for-investment at fair value | Residential Investor Term, Unsecuritized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	0	0
Held-for-investment at fair value | Residential Investor Term, Securitized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	2,270,879	2,485,069
Held-for-investment at fair value | Residential Investor Bridge, Unsecuritized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	0	1,041,694
Held-for-investment at fair value | Residential Investor Bridge, Securitized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	944,217	823,103
Total Residential Investor Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	4,339,168	4,587,090
Total Residential Investor Loans | Residential Investor Term, Unsecuritized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	174,808	158,637
Total Residential Investor Loans | Residential Investor Term, Securitized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	2,270,879	2,485,069
Total Residential Investor Loans | Residential Investor Bridge, Unsecuritized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	949,264	1,120,281
Total Residential Investor Loans | Residential Investor Bridge, Securitized
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	$ 944,217	$ 823,103