XML 52 R37.htm IDEA: XBRL DOCUMENT v3.21.2
Long-term Debt - Additional Information (Detail) - USD ($)
Sep. 15, 2021
Jul. 23, 2021
May 05, 2021
Sep. 30, 2021
Sep. 14, 2021
Jul. 22, 2021
Jul. 16, 2021
Jul. 15, 2021
Sep. 30, 2020
Debt Instrument [Line Items]                  
Weighted average interest rates       7.65%         8.15%
2018-1 Securitization Facility                  
Debt Instrument [Line Items]                  
Advance rate 90.00%       80.00%        
Debt instrument, revolving expiration date Sep. 15, 2024                
Debt instrument, maturity date Sep. 15, 2026                
2018-2 Securitization Facility                  
Debt Instrument [Line Items]                  
Advance rate   90.00%       80.00%      
Debt instrument, maturity date   Jul. 23, 2023              
Extended maturity term   2 years              
RAOD Facility                  
Debt Instrument [Line Items]                  
Advance rate             90.00% 76.00%  
Commitment amount             $ 178,000,000 $ 100,000,000  
OnDeck Asset Securitization Trust III                  
Debt Instrument [Line Items]                  
Debt instrument, face amount     $ 300,000,000            
Series 2021-1 Notes                  
Debt Instrument [Line Items]                  
Weighted average interest rates     2.07%            
Debt instrument, face amount     $ 316,000,000            
Credit agreement, maturity date     May 31, 2027