Derivatives and Hedging Activities - Non-designated Hedges (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Gain (Loss) on Fair Value Hedges Recognized in Earnings	$ 474,000	$ 407,000
Interest Rate Swap | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	$ 139,300,000		$ 142,800,000