Purchased Receivables - Narrative (Details)	9 Months Ended
	Sep. 30, 2020 USD ($) customer purchased_receivable segment	Dec. 31, 2019 USD ($) purchased_receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term of purchased receivables (less than)	1 year
Number of classes of purchased receivables | segment	1
Number of restructured purchased receivables	$ 8,476,000	$ 10,100,000
Nonperforming purchased receivables	$ 410,000	$ 0
Number of customer relationships related to nonperforming purchased receivables | customer	1
Purchased Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of purchased receivables past due | purchased_receivable	0	0
Number of restructured purchased receivables	$ 0	$ 0