Derivative Instruments - Summary (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Derivative [Line Items]
Derivative assets, notional	$ 435,580
Derivative assets	8,642
Derivative liabilities, notional	135,580
Derivative liabilities	5,819
Designated as Hedging Instrument
Derivative [Line Items]
Derivative assets, notional	300,000
Derivative assets	932
Derivative liabilities, notional	0
Derivative liabilities	0
Designated as Hedging Instrument | Fair value hedge - interest rate swap contracts
Derivative [Line Items]
Derivative assets, notional	300,000
Derivative assets	932
Derivative liabilities, notional	0
Derivative liabilities	0
Designated as Hedging Instrument | Interest rate swaps contracts
Derivative [Line Items]
Derivative assets, notional	300,000
Derivative assets	932
Not Designated as Hedging Instruments
Derivative [Line Items]
Derivative assets, notional	135,580	$ 145,181
Derivative assets	7,710	13,967
Derivative liabilities, notional	135,580	145,181
Derivative liabilities	5,819	12,066
Not Designated as Hedging Instruments | Interest rate swaps contracts
Derivative [Line Items]
Derivative assets, notional	135,580	145,181
Derivative assets	5,815	12,053
Derivative liabilities, notional	135,580	145,181
Derivative liabilities	5,819	12,066
Not Designated as Hedging Instruments | Equity warrants
Derivative [Line Items]
Derivative assets, notional	0	0
Derivative assets	1,895	1,914
Derivative liabilities, notional	0	0
Derivative liabilities	$ 0	$ 0