Derivatives (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2022	Dec. 31, 2020
Derivative [Line Items]
FHLB Advances repaid			$ 50,000
Interest rate swap [Member] | Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, notional amount	$ 165,384		165,384			$ 167,752
Interest Rate Swaps Terminated | Other Income
Derivative [Line Items]
Swap termination losses reclassified to noninterest income, before tax	0	$ 0	3,600	$ 0
Interest Rate Swaps Terminated | Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, notional amount	100,000		100,000
Interest Rate Swaps Terminated | Not Designated as Hedging Instrument [Member] | Other Income
Derivative [Line Items]
Swap termination losses reclassified to noninterest income, before tax			3,781
Other Liabilities [Member] | Interest rate swap [Member] | Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Interest rate non-hedging derivative liability at fair value	(3,295)		(3,295)			(492)
Other Assets [Member] | Interest rate swap [Member] | Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Interest rate non-hedging derivative asset at fair value	3,295		3,295			492
Cash Flow Hedging [Member] | Interest rate swap hedging rolling short-term funding [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, notional amount	125,000		125,000
Cash Flow Hedging [Member] | Interest rate swap hedging FHLB advances and subordinated notes [Domain] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, notional amount	20,000		20,000
Cash Flow Hedging [Member] | Interest rate swap hedging deposit accounts [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, notional amount	110,000		110,000
Cash Flow Hedging [Member] | Interest rate swap [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, notional amount	$ 255,000		$ 255,000			$ 305,000
Weighted average floating interest rate received	0.37%		0.37%			0.38%
Weighted average fixed interest rate paid	2.09%		2.09%			2.17%
Weighted average maturity - years			4 years 4 months 24 days			5 years
Collateral posted	$ 7,720		$ 7,720			$ 24,100
Cash Flow Hedging [Member] | Interest Rate Swaps Terminated | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, notional amount	50,000		50,000
Cash Flow Hedging [Member] | Other Liabilities [Member] | Interest rate swap [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Interest rate cash flow hedge liability at fair value	$ (10,874)		$ (10,874)			$ (23,848)
Forecast [Member] | Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative instruments, gain (loss) reclassification from AOCI to interest expense, estimated net amount to be transferred					$ 4,379