Derivative Instruments Derivative Instruments - Notional and Fair Value Amounts of Derivative Instruments (Details) - USD ($)	Mar. 31, 2022	Dec. 31, 2021
Derivatives, Fair Value [Line Items]
Carrying Amount of Hedged Assets	$ 914,706	$ 1,063,173
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of Hedged Assets	$ 47,163,000	10,524,000
Fair Value Hedging
Derivatives, Fair Value [Line Items]
Derivative assets, weighted average pay rate	1.21%
Derivative assets, notional amount	$ 1,001,715,000	1,001,715,000
Derivative assets, fair value	47,163,000	10,524,000
Interest Rate Swap
Derivatives, Fair Value [Line Items]
Derivative assets, notional amount	321,796,000	318,428,000
Derivative assets, fair value	10,544,000	15,328,000
Derivative liability, notional amount	325,265,000	321,985,000
Derivative liabilities, fair value	$ 10,554,000	$ 15,443,000