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Derivative Instruments and Hedging Activities (Details) - Derivatives Not Designated as Hedging Instruments [Member] $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 USD ($) Agreement | Mar. 31, 2023 USD ($) | Dec. 31, 2023 USD ($) Agreement
Derivative Asset [Abstract] |  |  |  |
Derivatives, fair value |  | $ 114,289 |  | $ 95,991
Netting adjustments, fair value | [1] | 24,321 |  | 20,849
Net derivatives in the balance sheet, fair value |  | 89,968 |  | 75,142
Derivatives not offset on the balance sheet, fair value |  | 1,924 |  | 2,930
Cash collateral, fair value | [2] | 0 |  | 0
Net derivative amounts, fair value |  | 88,044 |  | 72,212
Derivative Liability [Abstract] |  |  |  |
Derivatives, fair value |  | 114,104 |  | 95,875
Netting adjustments, fair value | [1] | 0 |  | 0
Net derivatives in the balance sheet, fair value |  | 114,104 |  | 95,875
Derivatives not offset on the balance sheet, fair value |  | 1,924 |  | 2,930
Cash collateral, fair value | [2] | 0 |  | 0
Net derivative amounts, fair value |  | 112,180 |  | $ 92,945
Other Income [Member] |  |  |  |
Gain or loss recognized in income on derivatives not designating as a hedging relationship [Abstract] |  |  |  |
Increase in other income |  | $ 75 | $ 7 |
Interest Rate Swaps [Member] |  |  |  |
Interest rate derivatives [Abstract] |  |  |  |
Number of risk participation agreements held | Agreement |  | 13 |  | 12
Interest Rate Swaps [Member] | Other Assets [Member] |  |  |  |
Derivative Asset [Abstract] |  |  |  |
Derivatives, notional amount |  | $ 1,330,997 |  | $ 1,303,711
Derivatives, fair value |  | 114,205 |  | 95,972
Interest Rate Swaps [Member] | Other Liabilities [Member] |  |  |  |
Derivative Liability [Abstract] |  |  |  |
Derivatives, notional amount |  | 1,330,997 |  | 1,303,711
Derivatives, fair value |  | 114,101 |  | 95,869
Risk Participation Agreements [Member] | Other Assets [Member] |  |  |  |
Derivative Asset [Abstract] |  |  |  |
Derivatives, notional amount |  | 71,511 |  | 62,112
Derivatives, fair value |  | 84 |  | 19
Risk Participation Agreements [Member] | Other Liabilities [Member] |  |  |  |
Derivative Liability [Abstract] |  |  |  |
Derivatives, notional amount |  | 15,571 |  | 16,146
Derivatives, fair value |  | $ 3 |  | $ 6
[1] | Netting adjustments represents the amounts recorded to convert derivatives assets and liabilities from a gross basis to a net basis in accordance with the applicable accounting guidance on the settle to market rules for cleared derivatives. The CME legally characterizes the variation margin posted between counterparties as settlements of the outstanding derivative contracts instead of cash collateral.
[2] | Cash collateral represents the amount that cannot be used to offset our derivative assets and liabilities from a gross basis to a net basis in accordance with the applicable accounting guidance. The other collateral consists of securities and is exchanged under bilateral collateral and master netting agreements that allow us to offset the net derivative position with the related collateral. The application of the other collateral cannot reduce the net derivative position below zero. Therefore, excess other collateral, if any, is not reflected above.

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