Purchased Receivables - Narrative (Details)	3 Months Ended	12 Months Ended
	Mar. 31, 2021 USD ($) contract purchased_receivable	Dec. 31, 2020 USD ($) purchased_receivable contract
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term of purchased receivables (less than)	1 year
Number of purchased receivables past due | purchased_receivable	0	0
Number of restructured purchased receivables	0
Nonperforming purchased receivables | $	$ 0	$ 0
Purchased Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of restructured purchased receivables	0	0