Derivative Instruments - Notional and Fair Value Amounts of Derivative Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Derivatives, Fair Value [Line Items]
Carrying Amount of Hedged Assets	$ 901,066	$ 944,115
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of Hedged Assets	$ 144,979	106,321
Fair Value Hedging
Derivatives, Fair Value [Line Items]
Derivative assets, weighted average pay rate	1.21%
Derivative assets, notional amount	$ 1,001,715	1,001,715
Derivative assets, fair value	144,281	104,833
Interest Rate Swap
Derivatives, Fair Value [Line Items]
Derivative assets, notional amount	506,483	413,968
Derivative assets, fair value	33,902	34,490
Derivative liability, notional amount	507,450	414,955
Derivative liabilities, fair value	$ 33,801	$ 34,440