Derivative Instrument and Hedging Activities (Fair Values of Derivative Instruments on the Balance Sheet) (Details) - USD ($) $ in Thousands		Sep. 30, 2024	Dec. 31, 2023
Derivatives, Fair Value [Line Items]
Asset derivatives		$ 35,853	$ 43,506
Liability derivatives		31,645	37,521
Derivatives Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Gross notional amount		105,000	105,000
Derivatives Designated as Hedging Instruments [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Asset derivatives		4,097	5,939
Derivatives Designated as Hedging Instruments [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability derivatives		31	0
Derivatives Not Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Gross notional amount		1,228,934	1,191,307
Derivatives Not Designated as Hedging Instruments [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Asset derivatives		31,756	37,567
Derivatives Not Designated as Hedging Instruments [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability derivatives		31,614	37,521
Cash Flow Hedge of Interest Rate Risk [Member] | Derivatives Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Gross notional amount		105,000	105,000
Cash Flow Hedge of Interest Rate Risk [Member] | Derivatives Designated as Hedging Instruments [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Asset derivatives		4,097	5,939
Cash Flow Hedge of Interest Rate Risk [Member] | Derivatives Designated as Hedging Instruments [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability derivatives		31	0
Interest Rate Swap [Member] | Derivatives Not Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Gross notional amount	[1]	1,130,680	1,104,804
Interest Rate Swap [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Asset derivatives	[1]	31,597	37,517
Interest Rate Swap [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability derivatives	[1]	31,600	37,519
Credit Contract [Member] | Derivatives Not Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Gross notional amount		81,878	81,211
Credit Contract [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Asset derivatives		0	0
Credit Contract [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability derivatives		0	0
Mortgage Banking [Member] | Derivatives Not Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Gross notional amount		16,376	5,292
Mortgage Banking [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Asset derivatives		159	50
Mortgage Banking [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability derivatives		$ 14	$ 2

[1] The Company was holding collateral of $28.3 million and $40.4 million against its net obligations under these contracts at September 30, 2024 and December 31, 2023, respectively.