Derivative Instruments and Hedge Activities - Summary of Other Interest Rate Derivatives (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Derivative [Line Items]
Notional Amount	$ 739,390,000	$ 391,847,000
Derivative assets fair value	16,949,000	17,149,000
Derivative liabilities fair value	(12,380,000)	$ (18,133,000)
Other Interest Rate Derivatives
Derivative [Line Items]
Notional Amount	381,169,000
Derivative assets fair value	11,957,000
Derivative liabilities fair value	$ (12,368,000)
Weighted average pay rates	4.43%
Weighted average receive rates	2.29%
Weighted average maturity	5 years 8 months 12 days