Description of Business (Percentage of Consumer Loans Assigned with FICO Score of Less Than 650 or No FICO Score)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Percentage Of Contracts With FICO Score Lower Than 650 Or No FICO Score [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Percentage Of Contracts	88.90%	93.60%	92.40%	95.40%