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v3.23.3

Allowance for Credit Losses - Payment Status (Amortized Cost Basis) (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2023 | Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Payment Status (Amortized Cost Basis) | $ 293,902 | $ 326,116
Deferment |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Payment Status (Amortized Cost Basis) | 5,140 | 7,698
Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Payment Status (Amortized Cost Basis) | 266,090 | 289,134
30-59 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Payment Status (Amortized Cost Basis) | 10,137 | 13,859
60-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Payment Status (Amortized Cost Basis) | 5,565 | 8,809
90 Days or Greater Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Payment Status (Amortized Cost Basis) | 6,970 | 6,616
Private Education Loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Payment Status (Amortized Cost Basis) | 293,902 | 326,116
Private Education Loans | Deferment |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Payment Status (Amortized Cost Basis) | 5,140 | 7,698
Private Education Loans | Current |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Payment Status (Amortized Cost Basis) | 266,090 | 289,134
Private Education Loans | 30-59 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Payment Status (Amortized Cost Basis) | 10,137 | 13,859
Private Education Loans | 60-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Payment Status (Amortized Cost Basis) | 5,565 | 8,809
Private Education Loans | 90 Days or Greater Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Payment Status (Amortized Cost Basis) | $ 6,970 | $ 6,616

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