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) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Assets    
Loans held for investment, at fair value $ 736,968 $ 907,998
Total loans held for sale, at fair value 77,494 173,984
Retained bonds 47,048 46,437
Fair Value, Recurring    
Assets    
Retained bonds 47,048 46,439
Total assets 25,873,611 19,803,289
Liabilities    
HMBS related obligations 16,407,629 10,996,755
Nonrecourse debt in consolidated VIE trusts 7,955,875 7,175,857
Nonrecourse commercial loan financing liability 75,689 106,758
Nonrecourse MSR financing liability 988 60,562
Deferred purchase price liabilities 4,522 137
TRA obligation 2,202 3,781
Total liabilities 24,448,486 18,345,352
Fair Value, Recurring | Loans held for investment, subject to HMBS related obligations    
Assets    
Loans held for investment, at fair value 16,623,561 11,114,100
Fair Value, Recurring | Reverse mortgage loans, subject to recourse    
Assets    
Loans held for investment, at fair value 8,009,079 7,065,477
Fair Value, Recurring | fix and flip mortgage loans, subject to recourse    
Assets    
Loans held for investment, at fair value 365,748 389,161
Fair Value, Recurring | Reverse mortgage loans, not subject to recourse    
Assets    
Loans held for investment, at fair value 724,306 771,724
Fair Value, Recurring | fix and flip mortgage loans, not subject to recourse    
Assets    
Loans held for investment, at fair value 11,787 127,469
Fair Value, Recurring | Agricultural loans    
Assets    
Loans held for investment, at fair value 875 8,805
Fair Value, Recurring | Residential mortgage loans    
Assets    
Total loans held for sale, at fair value 58,751 12,123
Fair Value, Recurring | SRL    
Assets    
Total loans held for sale, at fair value 15,699 69,187
Fair Value, Recurring | Portfolio    
Assets    
Total loans held for sale, at fair value 3,044 43,272
Fair Value, Recurring | Fix and flip    
Assets    
Total loans held for sale, at fair value   49,402
Fair Value, Recurring | MSR    
Assets    
MSR 13,713 95,096
Fair Value, Recurring | Forward MBS and TBAs    
Assets    
Derivative assets   907
Fair Value, Recurring | Interest rate swaps and futures contracts    
Assets    
Derivative assets   771
Fair Value, Recurring | Interest rate swaps and futures contracts    
Liabilities    
Derivative liabilities   385
Fair Value, Recurring | Warrant liability    
Liabilities    
Derivative liabilities 1,581 1,117
Fair Value, Recurring | Reverse mortgage loans    
Assets    
Purchase commitments - reverse mortgage loans   9,356
Fair Value, Recurring | Level 1    
Assets    
Retained bonds 0 0
Total assets 0 771
Liabilities    
HMBS related obligations 0 0
Nonrecourse debt in consolidated VIE trusts 0 0
Nonrecourse commercial loan financing liability 0 0
Nonrecourse MSR financing liability 0 0
Deferred purchase price liabilities 0 0
TRA obligation 0 0
Total liabilities 1,581 1,502
Fair Value, Recurring | Level 1 | Loans held for investment, subject to HMBS related obligations    
Assets    
Loans held for investment, at fair value 0 0
Fair Value, Recurring | Level 1 | Reverse mortgage loans, subject to recourse    
Assets    
Loans held for investment, at fair value 0 0
Fair Value, Recurring | Level 1 | fix and flip mortgage loans, subject to recourse    
Assets    
Loans held for investment, at fair value 0 0
Fair Value, Recurring | Level 1 | Reverse mortgage loans, not subject to recourse    
Assets    
Loans held for investment, at fair value 0 0
Fair Value, Recurring | Level 1 | fix and flip mortgage loans, not subject to recourse    
Assets    
Loans held for investment, at fair value 0 0
Fair Value, Recurring | Level 1 | Agricultural loans    
Assets    
Loans held for investment, at fair value 0 0
Fair Value, Recurring | Level 1 | Residential mortgage loans    
Assets    
Total loans held for sale, at fair value 0 0
Fair Value, Recurring | Level 1 | SRL    
Assets    
Total loans held for sale, at fair value 0 0
Fair Value, Recurring | Level 1 | Portfolio    
Assets    
Total loans held for sale, at fair value 0 0
Fair Value, Recurring | Level 1 | Fix and flip    
Assets    
Total loans held for sale, at fair value  
Fair Value, Recurring | Level 1 | MSR    
Assets    
MSR 0 0
Fair Value, Recurring | Level 1 | Forward MBS and TBAs    
Assets    
Derivative assets   0
Fair Value, Recurring | Level 1 | Interest rate swaps and futures contracts    
Assets    
Derivative assets   771
Fair Value, Recurring | Level 1 | Interest rate swaps and futures contracts    
Liabilities    
Derivative liabilities   385
Fair Value, Recurring | Level 1 | Warrant liability    
Liabilities    
Derivative liabilities 1,581 1,117
Fair Value, Recurring | Level 1 | Reverse mortgage loans    
Assets    
Purchase commitments - reverse mortgage loans   0
Fair Value, Recurring | Level 2    
Assets    
Retained bonds 0 0
Total assets 58,751 13,030
Liabilities    
HMBS related obligations 0 0
Nonrecourse debt in consolidated VIE trusts 0 0
Nonrecourse commercial loan financing liability 0 0
Nonrecourse MSR financing liability 0 0
Deferred purchase price liabilities 0 0
TRA obligation 0 0
Total liabilities 0 0
Fair Value, Recurring | Level 2 | Loans held for investment, subject to HMBS related obligations    
Assets    
Loans held for investment, at fair value 0 0
Fair Value, Recurring | Level 2 | Reverse mortgage loans, subject to recourse    
Assets    
Loans held for investment, at fair value 0 0
Fair Value, Recurring | Level 2 | fix and flip mortgage loans, subject to recourse    
Assets    
Loans held for investment, at fair value 0 0
Fair Value, Recurring | Level 2 | Reverse mortgage loans, not subject to recourse    
Assets    
Loans held for investment, at fair value 0 0
Fair Value, Recurring | Level 2 | fix and flip mortgage loans, not subject to recourse    
Assets    
Loans held for investment, at fair value 0 0
Fair Value, Recurring | Level 2 | Agricultural loans    
Assets    
Loans held for investment, at fair value 0 0
Fair Value, Recurring | Level 2 | Residential mortgage loans    
Assets    
Total loans held for sale, at fair value 58,751 12,123
Fair Value, Recurring | Level 2 | SRL    
Assets    
Total loans held for sale, at fair value 0 0
Fair Value, Recurring | Level 2 | Portfolio    
Assets    
Total loans held for sale, at fair value 0 0
Fair Value, Recurring | Level 2 | Fix and flip    
Assets    
Total loans held for sale, at fair value  
Fair Value, Recurring | Level 2 | MSR    
Assets    
MSR 0 0
Fair Value, Recurring | Level 2 | Forward MBS and TBAs    
Assets    
Derivative assets   907
Fair Value, Recurring | Level 2 | Interest rate swaps and futures contracts    
Assets    
Derivative assets   0
Fair Value, Recurring | Level 2 | Interest rate swaps and futures contracts    
Liabilities    
Derivative liabilities   0
Fair Value, Recurring | Level 2 | Warrant liability    
Liabilities    
Derivative liabilities 0 0
Fair Value, Recurring | Level 2 | Reverse mortgage loans    
Assets    
Purchase commitments - reverse mortgage loans   0
Fair Value, Recurring | Level 3    
Assets    
Retained bonds 47,048 46,439
Total assets 25,814,860 19,789,488
Liabilities    
HMBS related obligations 16,407,629 10,996,755
Nonrecourse debt in consolidated VIE trusts 7,955,875 7,175,857
Nonrecourse commercial loan financing liability 75,689 106,758
Nonrecourse MSR financing liability 988 60,562
Deferred purchase price liabilities 4,522 137
TRA obligation 2,202 3,781
Total liabilities 24,446,905 18,343,850
Fair Value, Recurring | Level 3 | Loans held for investment, subject to HMBS related obligations    
Assets    
Loans held for investment, at fair value 16,623,561 11,114,100
Fair Value, Recurring | Level 3 | Reverse mortgage loans, subject to recourse    
Assets    
Loans held for investment, at fair value 8,009,079 7,065,477
Fair Value, Recurring | Level 3 | fix and flip mortgage loans, subject to recourse    
Assets    
Loans held for investment, at fair value 365,748 389,161
Fair Value, Recurring | Level 3 | Reverse mortgage loans, not subject to recourse    
Assets    
Loans held for investment, at fair value 724,306 771,724
Fair Value, Recurring | Level 3 | fix and flip mortgage loans, not subject to recourse    
Assets    
Loans held for investment, at fair value 11,787 127,469
Fair Value, Recurring | Level 3 | Agricultural loans    
Assets    
Loans held for investment, at fair value 875 8,805
Fair Value, Recurring | Level 3 | Residential mortgage loans    
Assets    
Total loans held for sale, at fair value 0 0
Fair Value, Recurring | Level 3 | SRL    
Assets    
Total loans held for sale, at fair value 15,699 69,187
Fair Value, Recurring | Level 3 | Portfolio    
Assets    
Total loans held for sale, at fair value 3,044 43,272
Fair Value, Recurring | Level 3 | Fix and flip    
Assets    
Total loans held for sale, at fair value   49,402
Fair Value, Recurring | Level 3 | MSR    
Assets    
MSR 13,713 95,096
Fair Value, Recurring | Level 3 | Forward MBS and TBAs    
Assets    
Derivative assets   0
Fair Value, Recurring | Level 3 | Interest rate swaps and futures contracts    
Assets    
Derivative assets   0
Fair Value, Recurring | Level 3 | Interest rate swaps and futures contracts    
Liabilities    
Derivative liabilities   0
Fair Value, Recurring | Level 3 | Warrant liability    
Liabilities    
Derivative liabilities $ 0 0
Fair Value, Recurring | Level 3 | Reverse mortgage loans    
Assets    
Purchase commitments - reverse mortgage loans   $ 9,356