Bank Deposits - Narrative (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
Jun. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|---|---|
| Financial Instruments Owned and Pledged as Collateral [Line Items] | ||||
| Intercompany deposits | $ 285,800 | $ 93,800 | ||
| Restricted cash | 285,845 | $ 357,639 | $ 317,958 | $ 332,100 |
| Deposits exceeding the FDIC insurance limits | 40,900 | |||
| Nelnet Bank | Asset Pledged as Collateral | ||||
| Financial Instruments Owned and Pledged as Collateral [Line Items] | ||||
| Restricted cash | $ 40,000 |
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- Definition Deposit Liability, Above US Insurance Limit No definition available.
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- Definition Intercompany Deposits No definition available.
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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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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