Quarterly report pursuant to Section 13 or 15(d)

Fair Value - Summary of Performing/Nonperforming HECM securitizations (Details)

v3.22.1
Fair Value - Summary of Performing/Nonperforming HECM securitizations (Details) - Non Recourse Debt [Member]
3 Months Ended 12 Months Ended
Mar. 31, 2022
Dec. 31, 2021
Weighted average remaining life in years [Member] | Minimum [Member] | Performing/Nonperforming HECM securitizations    
Fair Value Non Recourse Debt Instruments Measured On Recurring And Nonrecurring Basis Fair Value Measurement [Line Items]    
Weighted average remaining life in years 8 months 12 days 2 months 12 days
Weighted average remaining life in years [Member] | Minimum [Member] | Securitized Non-Agency Reverse    
Fair Value Non Recourse Debt Instruments Measured On Recurring And Nonrecurring Basis Fair Value Measurement [Line Items]    
Weighted average remaining life in years 9 months 18 days 1 year
Weighted average remaining life in years [Member] | Maximum [Member] | Performing/Nonperforming HECM securitizations    
Fair Value Non Recourse Debt Instruments Measured On Recurring And Nonrecurring Basis Fair Value Measurement [Line Items]    
Weighted average remaining life in years 10 months 24 days 9 months 18 days
Weighted average remaining life in years [Member] | Maximum [Member] | Securitized Non-Agency Reverse    
Fair Value Non Recourse Debt Instruments Measured On Recurring And Nonrecurring Basis Fair Value Measurement [Line Items]    
Weighted average remaining life in years 2 years 2 months 12 days 2 years 3 months 18 days
Weighted average remaining life in years [Member] | Weighted Average [Member] | Performing/Nonperforming HECM securitizations    
Fair Value Non Recourse Debt Instruments Measured On Recurring And Nonrecurring Basis Fair Value Measurement [Line Items]    
Weighted average remaining life in years 9 months 18 days 6 months
Weighted average remaining life in years [Member] | Weighted Average [Member] | Securitized Non-Agency Reverse    
Fair Value Non Recourse Debt Instruments Measured On Recurring And Nonrecurring Basis Fair Value Measurement [Line Items]    
Weighted average remaining life in years 1 year 7 months 6 days 1 year 7 months 6 days
Conditional repayment rate [Member] | Minimum [Member] | Performing/Nonperforming HECM securitizations    
Fair Value Non Recourse Debt Instruments Measured On Recurring And Nonrecurring Basis Fair Value Measurement [Line Items]    
Conditional repayment rate 16.10% 30.80%
Conditional repayment rate [Member] | Minimum [Member] | Securitized Non-Agency Reverse    
Fair Value Non Recourse Debt Instruments Measured On Recurring And Nonrecurring Basis Fair Value Measurement [Line Items]    
Conditional repayment rate 15.60% 18.40%
Conditional repayment rate [Member] | Maximum [Member] | Performing/Nonperforming HECM securitizations    
Fair Value Non Recourse Debt Instruments Measured On Recurring And Nonrecurring Basis Fair Value Measurement [Line Items]    
Conditional repayment rate 26.00% 54.40%
Conditional repayment rate [Member] | Maximum [Member] | Securitized Non-Agency Reverse    
Fair Value Non Recourse Debt Instruments Measured On Recurring And Nonrecurring Basis Fair Value Measurement [Line Items]    
Conditional repayment rate 37.00% 35.90%
Conditional repayment rate [Member] | Weighted Average [Member] | Performing/Nonperforming HECM securitizations    
Fair Value Non Recourse Debt Instruments Measured On Recurring And Nonrecurring Basis Fair Value Measurement [Line Items]    
Conditional repayment rate 19.90% 43.50%
Conditional repayment rate [Member] | Weighted Average [Member] | Securitized Non-Agency Reverse    
Fair Value Non Recourse Debt Instruments Measured On Recurring And Nonrecurring Basis Fair Value Measurement [Line Items]    
Conditional repayment rate 26.30% 28.20%
Discount rate [Member] | Weighted Average [Member] | Performing/Nonperforming HECM securitizations    
Fair Value Non Recourse Debt Instruments Measured On Recurring And Nonrecurring Basis Fair Value Measurement [Line Items]    
Discount rate 4.10% 2.30%
Discount rate [Member] | Weighted Average [Member] | Securitized Non-Agency Reverse    
Fair Value Non Recourse Debt Instruments Measured On Recurring And Nonrecurring Basis Fair Value Measurement [Line Items]    
Discount rate 4.00% 2.20%