Mortgage Banking Activities - Schedule of notional amount and fair value of mortgage banking derivatives (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Derivative [Line Items]
Derivative asset, fair value	$ 1,550	$ 7,620
Derivative liability, fair value	189	4,467
Other assets | Interest rate lock commitments
Derivative [Line Items]
Derivative asset, notional amount	103,572	390,676
Derivative asset, fair value	1,435	7,565
Other assets | Mandatory forward sales contracts
Derivative [Line Items]
Derivative asset, notional amount	60,000	0
Derivative asset, fair value	88	0
Other assets | Best efforts forward sales contracts
Derivative [Line Items]
Derivative asset, notional amount	7,375	19,803
Derivative asset, fair value	27	55
Other liabilities | Interest rate lock commitments
Derivative [Line Items]
Derivative liability, notional amount	4,550	8,046
Derivative liability, fair value	23	12
Other liabilities | Mandatory forward sales contracts
Derivative [Line Items]
Derivative liability, notional amount	82,500	514,000
Derivative liability, fair value	$ 166	$ 4,455