Derivative Instruments and Hedging Activities (Details) - Derivatives Not Designated as Hedging Instruments [Member] $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2024 USD ($) Agreement	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) Agreement	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($) Agreement
Derivative Asset [Abstract]
Derivatives, fair value		$ 80,487		$ 80,487		$ 95,991
Netting adjustments, fair value	[1]	17,120		17,120		20,849
Net derivatives in the balance sheet, fair value		63,367		63,367		75,142
Derivatives not offset on the balance sheet, fair value		9,696		9,696		2,930
Cash collateral, fair value	[2]	0		0		0
Net derivative amounts, fair value		53,671		53,671		72,212
Derivative Liability [Abstract]
Derivatives, fair value		80,226		80,226		95,875
Netting adjustments, fair value	[1]	(10)		(10)		0
Net derivatives in the balance sheet, fair value		80,236		80,236		95,875
Derivatives not offset on the balance sheet, fair value		9,696		9,696		2,930
Cash collateral, fair value	[2]	0		0		0
Net derivative amounts, fair value		70,540		70,540		$ 92,945
Other Income [Member]
Gain or loss recognized in income on derivatives not designating as a hedging relationship [Abstract]
Increase (decrease) in other income		$ 65	$ (65)	$ 151	$ (65)
Interest Rate Swaps [Member]
Interest rate derivatives [Abstract]
Number of risk participation agreements held | Agreement		20		20		12
Interest Rate Swaps [Member] | Other Assets [Member]
Derivative Asset [Abstract]
Derivatives, notional amount		$ 1,393,024		$ 1,393,024		$ 1,303,711
Derivatives, fair value		80,351		80,351		95,972
Interest Rate Swaps [Member] | Other Liabilities [Member]
Derivative Liability [Abstract]
Derivatives, notional amount		1,393,024		1,393,024		1,303,711
Derivatives, fair value		80,218		80,218		95,869
Risk Participation Agreements [Member] | Other Assets [Member]
Derivative Asset [Abstract]
Derivatives, notional amount		91,093		91,093		62,112
Derivatives, fair value		136		136		19
Risk Participation Agreements [Member] | Other Liabilities [Member]
Derivative Liability [Abstract]
Derivatives, notional amount		19,740		19,740		16,146
Derivatives, fair value		$ 8		$ 8		$ 6

[1] Netting adjustments represents the amounts recorded to convert derivative 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.