Borrowings - Schedule of borrowed funds (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 21, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Balance	$ 377,309		$ 799,364
Weighted Average Interest Rate	1.38%		1.20%
FHLB advances
Debt Instrument [Line Items]
Balance	$ 340,495		$ 792,412
Weighted Average Interest Rate	1.17%		1.18%
Notes payable
Debt Instrument [Line Items]
Balance	$ 29,841	$ 30,000	$ 0
Weighted Average Interest Rate	3.35%		0.00%
Junior subordinated debt
Debt Instrument [Line Items]
Balance	$ 6,973		$ 6,952
Weighted Average Interest Rate	3.07%		3.20%