Merchant Cash Advances, Loans and Related Receivables - Summary of MCA, Loans and Related Receivables (Details) - USD ($) $ in Thousands |
Dec. 31, 2020 |
Dec. 31, 2019 |
Jan. 01, 2019 |
Dec. 31, 2018 |
|---|---|---|---|---|
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||
| Related receivables | $ 819 | $ 3,179 | $ 4,482 | |
| Allowance for credit losses related to uncollectible receivable | (18,580) | (12,781) | $ (7,221) | |
| Merchant cash advances, loans and related receivables, net | 244,723 | 150,172 | 91,873 | |
| Merchant cash advances | ||||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||
| Receivables, gross | 218,840 | 131,227 | 77,653 | |
| Allowance for credit losses related to uncollectible receivable | (15,816) | (10,420) | (6,249) | |
| Loans receivable | ||||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||
| Receivables, gross | 43,644 | 28,547 | 16,959 | |
| Allowance for credit losses related to uncollectible receivable | $ (2,764) | $ (2,361) | $ (972) |