Derivative Financial Instruments (Hedged Item in Fair Value Hedges) (Details) - USD ($) $ in Thousands |
Sep. 30, 2026 |
Dec. 31, 2025 |
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|---|---|---|---|---|
| Derivative [Line Items] | ||||
| Basis adjustment associated with fair value hedges | $ (2,200) | $ (335) | ||
| Amortized cost balance of closed-pool residential real estate loans used in fair value hedges | 577,300 | 608,500 | ||
| Fair Value Hedging Instruments | ||||
| Derivative [Line Items] | ||||
| Carrying value of hedged item | [1] | 97,790 | 99,665 | |
| Basis adjustment associated with fair value hedges | $ (2,210) | $ (335) | ||
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