Residential Whole Loans - Vintage Information Regarding Residential Whole Loans (Details) - Residential whole loans - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Non-QM loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 4,845,752	$ 4,291,086
Business purpose loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,898,559	3,396,181
Business purpose loans \| Single-family rental loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,292,584	1,356,400
Business purpose loans \| Single-family transitional loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	875,201	1,100,855
Business purpose loans \| Multifamily transitional loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	730,774	938,926
Legacy RPL/NPL loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,033,705	1,082,549
Other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	51,458	52,073
Estimated Fair Value
Accounts, Notes, Loans and Financing Receivable [Line Items]
2025	1,036,664
2024	1,605,467
2023	1,359,521
2022	1,343,097
2021	1,647,915
Prior	635,971
Total	7,628,635
Estimated Fair Value \| Non-QM loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
2025	795,199
2024	1,076,775
2023	588,523
2022	548,284
2021	1,148,144
Prior	31,067
Total	4,187,992	3,568,694
Estimated Fair Value \| Business purpose loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	2,791,750	3,265,548
Estimated Fair Value \| Business purpose loans \| Single-family rental loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
2025	49,378
2024	41,913
2023	228,508
2022	516,186
2021	350,826
Prior	7,432
Total	1,194,243	1,248,197
Estimated Fair Value \| Business purpose loans \| Single-family transitional loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
2025	192,087
2024	413,003
2023	200,914
2022	55,679
2021	5,013
Prior	37
Total	866,733	1,078,425
Estimated Fair Value \| Business purpose loans \| Multifamily transitional loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
2025	0
2024	73,776
2023	341,576
2022	222,948
2021	92,474
Prior	0
Total	730,774	938,926
Estimated Fair Value \| Legacy RPL/NPL loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
2025	0
2024	0
2023	0
2022	0
2021	0
Prior	597,435
Total	597,435	624,895
Estimated Fair Value \| Other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
2025	0
2024	0
2023	0
2022	0
2021	51,458
Prior	0
Total	$ 51,458	$ 52,073

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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