Quarterly report pursuant to Section 13 or 15(d)

Fair Value - Summary of Significant Unobservable Inputs used in the Fair value Measurement of Retained Bonds (Details)

v3.21.2
Fair Value - Summary of Significant Unobservable Inputs used in the Fair value Measurement of Retained Bonds (Details) - Retained Bonds [Member]
 9 Months Ended
Sep. 30, 2021
Measurement Input, Expected Term [Member] | Maximum [Member]  
Fair Value Measurement Inputs and Valuation Techniques [Line Items]  
Weighted average remaining life (in years) 25 years 2 months 12 days
Measurement Input, Expected Term [Member] | Minimum [Member]  
Fair Value Measurement Inputs and Valuation Techniques [Line Items]  
Weighted average remaining life (in years) 2 years 7 months 6 days
Measurement Input, Expected Term [Member] | Weighted Average [Member]  
Fair Value Measurement Inputs and Valuation Techniques [Line Items]  
Weighted average remaining life (in years) 5 years 1 month 6 days
Measurement Input, Discount Rate [Member] | Maximum [Member]  
Fair Value Measurement Inputs and Valuation Techniques [Line Items]  
Discount rate 8.30%
Measurement Input, Discount Rate [Member] | Minimum [Member]  
Fair Value Measurement Inputs and Valuation Techniques [Line Items]  
Discount rate 1.50%
Measurement Input, Discount Rate [Member] | Weighted Average [Member]  
Fair Value Measurement Inputs and Valuation Techniques [Line Items]  
Discount rate 2.50%