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Derivative Instruments and Hedging Activities - Derivatives Not Designated as Hedging Instruments (Details) - Not Designated as Hedging Instrument - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Derivative Notional Amount And Fair Value By Balance Sheet Not Designated As Hedging Instrument [Line Items]
Notional Amount	$ 883,536		$ 883,536		$ 923,658
Derivative Assets	304		304		226
Derivative Liabilities	111		111		67
Derivative instruments not designated as hedging instruments, gain (loss), net	328	$ (84)	564	$ 573
Credit derivatives
Derivative Notional Amount And Fair Value By Balance Sheet Not Designated As Hedging Instrument [Line Items]
Notional Amount	829,412		829,412		860,423
Credit derivatives \| Other noninterest income
Derivative Notional Amount And Fair Value By Balance Sheet Not Designated As Hedging Instrument [Line Items]
Derivative instruments not designated as hedging instruments, gain (loss), net	347	22	500	360
Credit derivatives \| Other assets
Derivative Notional Amount And Fair Value By Balance Sheet Not Designated As Hedging Instrument [Line Items]
Derivative Assets	0		0		0
Credit derivatives \| Other Liabilities
Derivative Notional Amount And Fair Value By Balance Sheet Not Designated As Hedging Instrument [Line Items]
Derivative Liabilities	97		97		67
Interest rate locks with customers
Derivative Notional Amount And Fair Value By Balance Sheet Not Designated As Hedging Instrument [Line Items]
Notional Amount	23,897		23,897		23,291
Interest rate locks with customers \| Mortgage Banking Activities
Derivative Notional Amount And Fair Value By Balance Sheet Not Designated As Hedging Instrument [Line Items]
Derivative instruments not designated as hedging instruments, gain (loss), net	(56)	(169)	90	(139)
Interest rate locks with customers \| Other assets
Derivative Notional Amount And Fair Value By Balance Sheet Not Designated As Hedging Instrument [Line Items]
Derivative Assets	304		304		214
Interest rate locks with customers \| Other Liabilities
Derivative Notional Amount And Fair Value By Balance Sheet Not Designated As Hedging Instrument [Line Items]
Derivative Liabilities	0		0		0
Forward loan sale commitments
Derivative Notional Amount And Fair Value By Balance Sheet Not Designated As Hedging Instrument [Line Items]
Notional Amount	30,227		30,227		39,944
Forward loan sale commitments \| Mortgage Banking Activities
Derivative Notional Amount And Fair Value By Balance Sheet Not Designated As Hedging Instrument [Line Items]
Derivative instruments not designated as hedging instruments, gain (loss), net	37	$ 63	(26)	$ 352
Forward loan sale commitments \| Other assets
Derivative Notional Amount And Fair Value By Balance Sheet Not Designated As Hedging Instrument [Line Items]
Derivative Assets	0		0		12
Forward loan sale commitments \| Other Liabilities
Derivative Notional Amount And Fair Value By Balance Sheet Not Designated As Hedging Instrument [Line Items]
Derivative Liabilities	$ 14		$ 14		$ 0