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Loans and Allowance for Credit Losses - Additional Information (Details) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 USD ($) loanReceivable | Dec. 31, 2020 USD ($) loanReceivable | Dec. 31, 2019 USD ($) loanReceivable | Jul. 08, 2020 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Premiums and discounts on acquired loans | $ 11,723 | $ 18,511 |  |
Net deferred origination and factoring fees | 5,349 | 4,887 |  |
Accrued interest on loans | $ 14,513 | $ 18,198 |  |
Majority of factored receivables percentage of loan portfolio | 91.00% | 90.00% |  |
Percentage of total loan portfolio on factored receivables | 32.00% | 20.00% |  |
Misdirected payments | $ 4,867,572 | $ 4,996,776 |  |
Pledged loans | 1,733,917 | 2,255,441 |  |
Loans transferred to loans held for sale | 83,975 | 185,823 | $ 46,163 |
Proceeds from sale of loans | 87,813 | 165,877 | 47,832 |
Net gain (loss) on loans transferred to held for sale | 1,247 | (770) | 1,669 |
ACL Allocation | 42,213 | 95,739 |  |
Credit loss expense (benefit) | (8,830) | 38,329 | $ 7,942 |
Decrease in allowances for credit losses attributable to net charge-offs | 4,298 |  |  |
Nonaccrual | 15,034 | 34,073 |  |
Factored receivables greater than 90 days past due | 39,268 | 72,774 |  |
Recorded investments in troubled debt restructurings | $ 4,677 | $ 13,324 |  |
Number of defaults on modified loans | loanReceivable | 3 | 1 | 3 |
Recorded investments in troubled debt restructurings | $ 1,681 | $ 5,741 | $ 680 |
Troubled Debt Restructuring |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
ACL Allocation | 1,068 | 2,469 |  |
Nonaccrual | 3,912 | 13,321 |  |
Past Due 90 Days or More |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Misdirected payments | 46,433 | 87,766 |  |
Changes In Allowance For Credit Losses |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Allowances for credit losses attributable to change in loss drivers | 10,408 |  |  |
Factored receivables |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Customer reserves | 254,970 | 145,892 |  |
Misdirected payments | 1,699,537 | 1,120,770 |  |
Nonaccrual | 0 | 0 |  |
Factored receivables greater than 90 days past due | 39,134 | 72,717 |  |
Factored receivables | Past Due 90 Days or More |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Misdirected payments | 39,134 | 72,717 |  |
Factored receivables | Over-Formula Advances |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Misdirected payments | 10,077 | 62,100 |  | $ 62,200
ACL Allocation | 10,077 | 48,485 |  |
Financing receivable, allowance for credit loss, writeoff | 41,265 |  |  |
Credit loss expense (benefit) | 2,857 |  |  |
Factored receivables | Over-Formula Advances | Past Due 90 Days or More |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Nonaccrual | 10,077 | 62,100 |  |
Factored receivables | Misdirected Payments Receivable | United States Postal Service |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Misdirected payments | 19,361 | 19,600 |  |
Factored receivables greater than 90 days past due |  | 6,000 |  |
1-4 family residential properties |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Misdirected payments | 123,115 | 157,147 |  |
Nonaccrual | 1,683 | 1,848 |  |
Factored receivables greater than 90 days past due | 134 | 0 |  |
1-4 family residential properties | Past Due 90 Days or More |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Misdirected payments | 1,114 | 952 |  |
1-4 family residential properties | Real Eatate Loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Residential real estate loans in process of foreclosure | $ 301 | $ 251 |  |
Texas, Colorado, Illinois, And Iowa | Accounts Receivable | Geographic Concentration Risk |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Percentage of customers located within states | 57.00% | 57.00% |  |
Texas | Accounts Receivable | Geographic Concentration Risk |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Percentage of customers located within states | 21.00% | 22.00% |  |
Colorado | Accounts Receivable | Geographic Concentration Risk |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Percentage of customers located within states | 15.00% | 17.00% |  |
Illinois | Accounts Receivable | Geographic Concentration Risk |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Percentage of customers located within states | 15.00% | 12.00% |  |
Iowa | Accounts Receivable | Geographic Concentration Risk |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Percentage of customers located within states | 6.00% | 6.00% |  |

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