Loans and Allowance for Credit Losses - Schedule of Nonperforming Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	$ 38,321	$ 36,054
Factored receivables greater than 90 days past due	10,344	5,369
Troubled Debt Restructuring
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	15,743	4,888
Factored receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	0	0
Factored receivables greater than 90 days past due	8,638	4,226
Nonperforming Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	38,321	36,054
Troubled debt restructurings accruing interest	3	333
Total loans	56,991	40,613
Nonperforming Loans | Factored receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Factored receivables greater than 90 days past due	8,638	4,226
Other nonperforming factored receivables	$ 10,029	$ 0