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v3.23.3

Allowance for Credit Losses - Amortized Cost Basis of Financing Receivables that Subsequently Defaulted (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Modified Loans |  |  | $ 293,902 |  | $ 326,116
60 Days or Greater Past Due |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Modified Loans | $ 14,546 | $ 9,467 | 26,449 | $ 12,660 |
Payment Default | 14,129 | 9,289 | 27,672 | 12,463 |
Charge-Offs | 4,534 | 1,801 | 6,428 | 1,861 |
Combination - Interest Rate Reduction and Term Extension |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Modified Loans | 12,400 | 8,500 | 23,000 | 11,400 |
Interest Rate Reduction |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Modified Loans | 2,100 | 1,000 | 3,400 | 1,200 |
Private Education Loans |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Modified Loans |  |  | 293,902 |  | $ 326,116
Private Education Loans | 60 Days or Greater Past Due |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Modified Loans | 14,546 | 9,467 | 26,449 | 12,660 |
Payment Default | 14,129 | 9,289 | 27,672 | 12,463 |
Charge-Offs | $ 4,534 | $ 1,801 | $ 6,428 | $ 1,861 |

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