Residential Whole Loans - Vintage Information Regarding Residential Whole Loans (Details) - Residential whole loans - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Non-QM loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 5,761,774	$ 5,346,693
Business purpose loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,999,999	2,443,328
Business purpose loans \| Single-family rental loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	1,058,094	1,235,346
Business purpose loans \| Single-family transitional loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	678,457	718,345
Business purpose loans \| Multifamily transitional loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	263,448	489,637
Seasoned RPL/NPL loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	885,318	979,016
Other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	44,738	51,022
Estimated Fair Value
Accounts, Notes, Loans and Financing Receivable [Line Items]
2026	1,475,650
2025	1,818,476
2024	846,668
2023	767,704
2022	958,068
Prior	1,859,700
Total	7,726,266
Estimated Fair Value \| Non-QM loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
2026	1,152,050
2025	1,559,980
2024	716,029
2023	419,853
2022	433,897
Prior	977,436
Total	5,259,245	4,753,480
Estimated Fair Value \| Business purpose loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
2026	323,600
2025	258,496
2024	130,639
2023	347,851
2022	524,171
Prior	337,171
Total	1,921,928	2,348,165
Estimated Fair Value \| Business purpose loans \| Single-family rental loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
2026	43,612
2025	1,560
2024	35,767
2023	187,325
2022	424,069
Prior	293,703
Total	986,036	1,147,234
Estimated Fair Value \| Business purpose loans \| Single-family transitional loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
2026	279,988
2025	256,936
2024	71,751
2023	47,768
2022	13,240
Prior	2,761
Total	672,444	711,294
Estimated Fair Value \| Business purpose loans \| Multifamily transitional loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
2026	0
2025	0
2024	23,121
2023	112,758
2022	86,862
Prior	40,707
Total	263,448	489,637
Estimated Fair Value \| Seasoned RPL/NPL loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
2026	0
2025	0
2024	0
2023	0
2022	0
Prior	500,355
Total	500,355	564,340
Estimated Fair Value \| Other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
2026	0
2025	0
2024	0
2023	0
2022	0
Prior	44,738
Total	$ 44,738	$ 51,022

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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