Subsequent Event - Disposal Group (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Subsequent Event [Line Items]
Assets of branches held-for-sale	$ 59,488	$ 0
Liabilities of branches held-for-sale	165,750	$ 0
Held-for-sale
Subsequent Event [Line Items]
Cash and due from banks	1,320
Loans receivable	54,547
Premises and equipment, net	3,469
Accrued interest receivable and other assets	152
Assets of branches held-for-sale	59,488
Noninterest-bearing	30,462
Interest-bearing	135,238
Total deposits	165,700
Accrued interest payable and other liabilities	50
Liabilities of branches held-for-sale	$ 165,750