XML 88 R74.htm IDEA: XBRL DOCUMENT v3.21.2
Concentration of Credit Risk - Additional Information (Detail) - Financing Receivable - Geographic Concentration Risk
Sep. 30, 2021
Dec. 31, 2020
Florida    
Concentration Risk [Line Items]    
Concentration risk, Percentage 13.00% 14.00%
Texas    
Concentration Risk [Line Items]    
Concentration risk, Percentage 13.00%  
California    
Concentration Risk [Line Items]    
Concentration risk, Percentage 10.00%  
Illinois    
Concentration Risk [Line Items]    
Concentration risk, Percentage   13.00%