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Borrowings - Summary of Borrowed Funds (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020	Oct. 31, 2020	Feb. 29, 2020
Debt Instrument [Line Items]
Total FHLB advances and other borrowings	$ 309,801,000	$ 984,608,000
FHLB advances
Debt Instrument [Line Items]
Total FHLB advances and other borrowings	256,999,000	270,715,000
Subordinated indebtedness, net	256,999,000
GNMA repurchase liability
Debt Instrument [Line Items]
Total FHLB advances and other borrowings	43,355,000	55,485,000
Subordinated indebtedness, net
Debt Instrument [Line Items]
Subordinated indebtedness, net	157,417,000	157,181,000
Amount			$ 80,000,000	$ 70,000,000
Interest Rate			4.50%	4.25%
Long-term FHLB advance
Debt Instrument [Line Items]
Amount	$ 250,000,000	$ 250,000,000
Interest Rate	1.65%	1.65%
Overnight repurchase agreements with depositors
Debt Instrument [Line Items]
Total FHLB advances and other borrowings	$ 9,447,000	$ 8,408,000
FHLB advances
Debt Instrument [Line Items]
Total FHLB advances and other borrowings	$ 0	650,000,000
Federal Home Loan Bank Advances, Maturing January 2, 2020
Debt Instrument [Line Items]
Amount		$ 650,000,000
Interest Rate		0.10%

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