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Loans Held for Investment - Student Loan Portfolio Average Balances (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Average Balance | $ 21,613,919 | $ 21,238,931 | $ 21,701,229
Private Education Loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Average Balance | $ 21,039,701 | $ 20,576,737 | $ 20,968,061
Weighted Average Interest Rate | 10.86% | 9.14% | 8.25%
FFELP Loans |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Average Balance | $ 574,218 | $ 662,194 | $ 718,186
Weighted Average Interest Rate | 7.19% | 4.62% | 3.43%
Credit Cards |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Average Balance | $ 0 | $ 0 | $ 14,982
Weighted Average Interest Rate | 0.00% | 0.00% | 4.67%

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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