Goodwill and Intangible Assets - Additional Information (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Jun. 30, 2021	Mar. 31, 2021	Feb. 22, 2021
Finite Lived Intangible Assets [Line Items]
Goodwill	$ 140,465	$ 111,853
Delta Bancshares Company
Finite Lived Intangible Assets [Line Items]
Goodwill	28,611
BBM & Associates, Inc.
Finite Lived Intangible Assets [Line Items]
Goodwill			$ 1,400
LINCO Bancshares, Inc.
Finite Lived Intangible Assets [Line Items]
Goodwill	$ 5,449			$ 8,900	$ 5,449