Merchant Cash Advances Receivable - Summary of Allowance for Uncollectible MCA Receivable (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Allowance for Doubtful Accounts Receivable [Roll Forward] | ||
| Provision for uncollectible receivables related to merchant cash advances | $ 2,606 | $ 1,028 |
| MCA | ||
| Allowance for Doubtful Accounts Receivable [Roll Forward] | ||
| Allowance for uncollectible MCA receivable, beginning of the year | 1,028 | 22 |
| Provision for uncollectible receivables related to merchant cash advances | 2,606 | 1,006 |
| MCA receivable charged off | (1,592) | 0 |
| Allowance for uncollectible MCA receivable, end of the year | $ 2,042 | $ 1,028 |