Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Additional Information (Details)

v3.20.4
Fair Value Measurements - Additional Information (Details) - Level 3
Dec. 31, 2020
Dec. 31, 2019
Interest Rate | Minimum    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Investments, measurement input 0.01 0.01
Interest Rate | Minimum | Securitization residual assets    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Investments, measurement input 0.01 0.01
Interest Rate | Maximum    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Investments, measurement input 0.04 0.04
Interest Rate | Maximum | Securitization residual assets    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Investments, measurement input 0.05 0.05
Discount Rate    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Investments, measurement input 0.032 0.044
Discount Rate | Securitization residual assets    
Fair Value, Option, Quantitative Disclosures [Line Items]    
Investments, measurement input 0.038 0.044