Premises and Equipment - Summary (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Less: accumulated depreciation	$ (6,236)	$ (10,973)
Premises and equipment, net	44,249	37,590
Land
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	0	2,500
Right of use leased asset
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	304	819
Construction in process
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	42,106	28,754
Building and improvements
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	439	5,819
Furniture and equipment
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 7,636	$ 10,671