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Derivative and Hedging Activities Cumulative Basis Adjustment for Fair Value Hedges (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Derivative Liability, Notional Amount | $ (50,000) | $ (300,000)
Carrying amount excluded for foreign currency loans | 439,900 | 344,200
Derivative Financial Instruments, Liabilities [Member] |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Derivative Liability, Notional Amount | (500,053) | (888,260)
Fair Value Hedging [Member] |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease) | (53) | 11,740
Long-Term Debt [Member] | Derivative Financial Instruments, Liabilities [Member] |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Derivative Liability, Notional Amount | (301,626) | (296,004)
Long-Term Debt [Member] | Fair Value Hedging [Member] |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease) | (1,626) | 3,996
Federal Home Loan Bank Advances [Member] | Derivative Financial Instruments, Liabilities [Member] |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Derivative Liability, Notional Amount | (198,427) | (592,256)
Federal Home Loan Bank Advances [Member] | Fair Value Hedging [Member] |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease) | $ 1,573 | $ 7,744

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