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
Sep. 30, 2024
Dec. 31, 2023
Assets    
Retained bonds $ 42,777 $ 44,297
Total assets 28,365,990 26,451,993
Liabilities    
HMBS related obligations 18,292,043 17,353,720
Nonrecourse debt in consolidated VIE trusts and reverse loan financing liability 8,528,429 7,876,932
Nonrecourse commercial loan financing liability 8,690 27,268
Deferred purchase price liabilities 5,501 4,318
TRA obligation 3,934 4,537
Total liabilities 26,838,597 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 0 1,150
Level 2    
Assets    
Retained bonds 0 0
Total assets 1,151 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 42,777 44,297
Total assets 28,364,839 26,447,117
Liabilities    
HMBS related obligations 18,292,043 17,353,720
Nonrecourse debt in consolidated VIE trusts and reverse loan financing liability 8,528,429 7,876,932
Nonrecourse commercial loan financing liability 8,690 27,268
Deferred purchase price liabilities 5,501 4,318
TRA obligation 3,934 4,537
Total liabilities 26,838,597 25,266,775
Loans held for investment, subject to HMBS related obligations    
Assets    
Loans held for investment, at fair value 18,521,337 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 18,521,337 17,548,763
Reverse mortgage loans    
Assets    
Loans held for investment, at fair value 9,063,459 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 9,063,459 8,138,403
Commercial mortgage loans    
Assets    
Loans held for investment, at fair value 33,910 133,990
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 33,910 133,990
Reverse mortgage loans    
Assets    
Loans held for investment, at fair value 702,858 574,271
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 702,858 574,271
Commercial mortgage loans    
Assets    
Loans held for investment, at fair value 498 957
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 498 957
Loans held for sale - residential mortgage loans    
Assets    
Loans held for sale - residential mortgage loans 1,151 4,246
Loans held for sale - residential mortgage loans | Level 1    
Assets    
Loans held for sale - residential mortgage loans 0 0
Loans held for sale - residential mortgage loans | Level 2    
Assets    
Loans held for sale - residential mortgage loans 1,151 4,246
Loans held for sale - residential mortgage loans | Level 3    
Assets    
Loans held for sale - residential mortgage loans $ 0 0
MSR    
Assets    
MSR   6,436
MSR | Level 1    
Assets    
MSR   0
MSR | Level 2    
Assets    
MSR   0
MSR | Level 3    
Assets    
MSR   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    
Warrant liability   1,150
Warrant liability | Level 1    
Liabilities    
Warrant liability   1,150
Warrant liability | Level 2    
Liabilities    
Warrant liability   0
Warrant liability | Level 3    
Liabilities    
Warrant liability   $ 0