Loans and Allowance for Loan Losses - Loans in Forbearance (Details) - Non-TDR Loan Modifications, CARES Act $ in Thousands	Sep. 30, 2020 USD ($) loan	Jun. 30, 2020 USD ($) loan
Loans and Leases Receivable Disclosure [Line Items]
Number of Loans | loan	34	527
Amount | $	$ 22,706	$ 165,936
% of Portfolio	2.20%	15.90%
Real Estate | Residential
Loans and Leases Receivable Disclosure [Line Items]
Number of Loans | loan	11	163
Amount | $	$ 1,242	$ 23,653
% of Portfolio	0.40%	6.90%
Real Estate | Commercial
Loans and Leases Receivable Disclosure [Line Items]
Number of Loans | loan	9	111
Amount | $	$ 13,885	$ 105,117
% of Portfolio	3.90%	30.00%
Real Estate | Construction
Loans and Leases Receivable Disclosure [Line Items]
Number of Loans | loan	1	6
Amount | $	$ 7,162	$ 15,518
% of Portfolio	10.40%	26.60%
Commercial and Industrial
Loans and Leases Receivable Disclosure [Line Items]
Number of Loans | loan	1	76
Amount | $	$ 122	$ 15,697
% of Portfolio	0.10%	10.50%
Consumer
Loans and Leases Receivable Disclosure [Line Items]
Number of Loans | loan	12	170
Amount | $	$ 295	$ 3,447
% of Portfolio	0.30%	2.90%
Other
Loans and Leases Receivable Disclosure [Line Items]
Number of Loans | loan	0	1
Amount | $	$ 0	$ 2,504
% of Portfolio	0.00%	11.20%