Loans and Allowance for Credit Losses - PCD loans credit quality indicators (Details) $ in Thousands	Dec. 31, 2020 USD ($)
Pass
Purchased Credit Deteriorated Loans	$ 3,200
Watch
Purchased Credit Deteriorated Loans	7,800
Special Mention
Purchased Credit Deteriorated Loans	0
Substandard
Purchased Credit Deteriorated Loans	5,200
Doubtful
Purchased Credit Deteriorated Loans	$ 0