Derivative Instruments and Hedging Activities - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) interest_rate_swap	Dec. 31, 2018 USD ($) interest_rate_swap interest_rate_cap
Derivative [Line Items]
Termination value of derivatives in a net liability position	$ 28,734
Derivative collateral posted	42,255
Not Designated as Hedging Instruments
Derivative [Line Items]
Notional amount of interest rate derivatives	692,287
Cash Flow Hedging
Derivative [Line Items]
Estimated amount to be transferred from OCI to earnings	$ 490
Interest Rate Swap
Derivative [Line Items]
Number of interest rate derivatives held | interest_rate_swap	4	4
Notional amount of interest rate derivatives	$ 46,000	$ 46,000
Interest Rate Swap | Cash Flow Hedging | Trust Preferred Debt
Derivative [Line Items]
Notional amount of interest rate derivatives	26,000
Interest Rate Swap | Cash Flow Hedging | Federal Home Loan Bank Advances
Derivative [Line Items]
Notional amount of interest rate derivatives	$ 20,000
Interest Rate Cap
Derivative [Line Items]
Number of interest rate derivatives held | interest_rate_cap		1
Notional amount of interest rate derivatives		$ 13,000