Loans and Allowance for Credit Losses - PCD loans credit quality indicators (Details) $ in Thousands	Mar. 31, 2021 USD ($)
Pass
Purchased Credit Deteriorated Loans	$ 3,200
Watch
Purchased Credit Deteriorated Loans	9,000
Special Mention
Purchased Credit Deteriorated Loans	0
Substandard
Purchased Credit Deteriorated Loans	3,700
Doubtful
Purchased Credit Deteriorated Loans	$ 0