Transactions with Related Parties (Transactions with Other FHLBanks) (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Sep. 30, 2025 |
Sep. 30, 2024 |
Sep. 30, 2025 |
Sep. 30, 2024 |
Dec. 31, 2024 |
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| Related Party Transaction [Line Items] | |||||
| Loans Repaid by Other Federal Home Loan Banks | $ 0 | $ 0 | |||
| Loans from Other Federal Home Loan Banks | 0 | 0 | $ 0 | $ 0 | |
| FHLBank of Chicago [Member] | |||||
| Related Party Transaction [Line Items] | |||||
| Servicing fee expense | 1,056 | $ 987 | 3,063 | $ 2,944 | |
| Interest-bearing deposits maintained with FHLBank of Chicago | $ 5,436 | $ 5,436 | $ 5,263 | ||
| X | ||||||||||
- Definition Total loans repaid by other Federal Home Loan Banks during the period No definition available.
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| X | ||||||||||
- Definition Amount of interest-bearing funds deposited into another Federal Home Loan Banks (FHLBanks). No definition available.
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| X | ||||||||||
- Definition Income from mortgage banking activities (fees and commissions) and servicing real estate mortgages, credit cards, and other financial assets held by others net of any related impairment of capitalized service costs. Also includes any premiums received in lieu of regular servicing fees on such loans only as earned over the life of the loans. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of Federal Home Loan Bank (FHLBank) loans from another FHLBank. No definition available.
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| X | ||||||||||
- 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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| X | ||||||||||
- Details
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