XML 60 R50.htm IDEA: XBRL DOCUMENT v3.21.1
Fair Value Measurement - Fair Value Assumptions (Details) - Fair Value, Inputs, Level 3 - Valuation Technique, Discounted Cash Flow
3 Months Ended 12 Months Ended
Mar. 31, 2021
Dec. 31, 2020
Minimum    
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]    
Discount rate 15.00% 15.00%
Credit Risk Rate 0.03% 0.03%
Market-servicing rate 0.75% 0.75%
Prepayment rate 8.61% 9.07%
Maximum    
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]    
Discount rate 35.00% 35.00%
Credit Risk Rate 52.78% 52.78%
Market-servicing rate 0.75% 0.75%
Prepayment rate 88.79% 89.01%
Weighted Average    
Assumption for Fair Value as of Balance Sheet Date of Assets or Liabilities that relate to Transferor's Continuing Involvement [Line Items]    
Discount rate 22.88% 22.69%
Credit Risk Rate 17.73% 17.19%
Market-servicing rate 0.75% 0.75%
Prepayment rate 32.43% 31.62%