Quarterly report pursuant to Section 13 or 15(d)

Fair Value - Summary Of Recognized Assets And Liabilities Measured At Fair Value On A Recurring Basis (Details)

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Fair Value - Summary Of Recognized Assets And Liabilities Measured At Fair Value On A Recurring Basis (Details) - Fair Value, Recurring - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Assets    
Retained bonds $ 42,906 $ 44,297
Total assets 27,040,438 26,451,993
Liabilities    
HMBS related obligations 17,827,060 17,353,720
Nonrecourse debt in consolidated VIE trusts and reverse loan financing liability 7,883,472 7,876,932
Nonrecourse commercial loan financing liability 14,424 27,268
Deferred purchase price liabilities 2,794 4,318
TRA obligation 4,824 4,537
Total liabilities 25,733,005 25,267,925
Level 1    
Assets    
Retained bonds 0 0
Total assets 0 0
Liabilities    
HMBS related obligations 0 0
Nonrecourse debt in consolidated VIE trusts and reverse loan financing liability 0 0
Nonrecourse commercial loan financing liability 0 0
Deferred purchase price liabilities 0 0
TRA obligation 0 0
Total liabilities 431 1,150
Level 2    
Assets    
Retained bonds 0 0
Total assets 2,465 4,876
Liabilities    
HMBS related obligations 0 0
Nonrecourse debt in consolidated VIE trusts and reverse loan financing liability 0 0
Nonrecourse commercial loan financing liability 0 0
Deferred purchase price liabilities 0 0
TRA obligation 0 0
Total liabilities 0 0
Level 3    
Assets    
Retained bonds 42,906 44,297
Total assets 27,037,973 26,447,117
Liabilities    
HMBS related obligations 17,827,060 17,353,720
Nonrecourse debt in consolidated VIE trusts and reverse loan financing liability 7,883,472 7,876,932
Nonrecourse commercial loan financing liability 14,424 27,268
Deferred purchase price liabilities 2,794 4,318
TRA obligation 4,824 4,537
Total liabilities 25,732,574 25,266,775
Loans held for investment, subject to HMBS related obligations    
Assets    
Loans held for investment, at fair value 18,050,772 17,548,763
Loans held for investment, subject to HMBS related obligations | Level 1    
Assets    
Loans held for investment, at fair value 0 0
Loans held for investment, subject to HMBS related obligations | Level 2    
Assets    
Loans held for investment, at fair value 0 0
Loans held for investment, subject to HMBS related obligations | Level 3    
Assets    
Loans held for investment, at fair value 18,050,772 17,548,763
Reverse mortgage loans    
Assets    
Loans held for investment, at fair value 8,327,915 8,138,403
Reverse mortgage loans | Level 1    
Assets    
Loans held for investment, at fair value 0 0
Reverse mortgage loans | Level 2    
Assets    
Loans held for investment, at fair value 0 0
Reverse mortgage loans | Level 3    
Assets    
Loans held for investment, at fair value 8,327,915 8,138,403
Commercial mortgage loans    
Assets    
Loans held for investment, at fair value 79,687 133,990
Commercial mortgage loans | Level 1    
Assets    
Loans held for investment, at fair value 0 0
Commercial mortgage loans | Level 2    
Assets    
Loans held for investment, at fair value 0 0
Commercial mortgage loans | Level 3    
Assets    
Loans held for investment, at fair value 79,687 133,990
Reverse mortgage loans    
Assets    
Loans held for investment, at fair value 535,159 574,271
Reverse mortgage loans | Level 1    
Assets    
Loans held for investment, at fair value 0 0
Reverse mortgage loans | Level 2    
Assets    
Loans held for investment, at fair value 0 0
Reverse mortgage loans | Level 3    
Assets    
Loans held for investment, at fair value 535,159 574,271
Commercial mortgage loans    
Assets    
Loans held for investment, at fair value 751 957
Commercial mortgage loans | Level 1    
Assets    
Loans held for investment, at fair value 0 0
Commercial mortgage loans | Level 2    
Assets    
Loans held for investment, at fair value 0 0
Commercial mortgage loans | Level 3    
Assets    
Loans held for investment, at fair value 751 957
Loans held for sale - residential mortgage loans    
Assets    
Leans held for sale, at fair value 2,465 4,246
Loans held for sale - residential mortgage loans | Level 1    
Assets    
Leans held for sale, at fair value 0 0
Loans held for sale - residential mortgage loans | Level 2    
Assets    
Leans held for sale, at fair value 2,465 4,246
Loans held for sale - residential mortgage loans | Level 3    
Assets    
Leans held for sale, at fair value 0 0
MSR    
Assets    
MSR 783 6,436
MSR | Level 1    
Assets    
MSR 0 0
MSR | Level 2    
Assets    
MSR 0 0
MSR | Level 3    
Assets    
MSR 783 6,436
Loan purchase commitments    
Assets    
Loan purchase commitments   630
Loan purchase commitments | Level 1    
Assets    
Loan purchase commitments   0
Loan purchase commitments | Level 2    
Assets    
Loan purchase commitments   630
Loan purchase commitments | Level 3    
Assets    
Loan purchase commitments   0
Warrant liability    
Liabilities    
Derivative liabilities 431 1,150
Warrant liability | Level 1    
Liabilities    
Derivative liabilities 431 1,150
Warrant liability | Level 2    
Liabilities    
Derivative liabilities 0 0
Warrant liability | Level 3    
Liabilities    
Derivative liabilities $ 0 $ 0