Non Purchased Loans - Investment and Interest Income Recognized on Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019
Investment and interest income recognized on impaired loans
Average Recorded Investment	$ 9,636	$ 9,561
Interest Income Recognized	43	141
Non purchased loans and leases
Investment and interest income recognized on impaired loans
Average Recorded Investment	40,858	40,517
Interest Income Recognized	207	620
Non purchased loans and leases | Commercial, financial, agricultural
Investment and interest income recognized on impaired loans
Average Recorded Investment	5,705	5,656
Interest Income Recognized	5	23
Non purchased loans and leases | Lease financing
Investment and interest income recognized on impaired loans
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Non purchased loans and leases | Real estate – construction:
Investment and interest income recognized on impaired loans
Average Recorded Investment	12,128	11,756
Interest Income Recognized	111	321
Non purchased loans and leases | Real estate – 1-4 family mortgage
Investment and interest income recognized on impaired loans
Average Recorded Investment	12,203	12,323
Interest Income Recognized	50	153
Non purchased loans and leases | Real estate – commercial mortgage:
Investment and interest income recognized on impaired loans
Average Recorded Investment	10,692	10,652
Interest Income Recognized	41	122
Non purchased loans and leases | Installment loans to individuals
Investment and interest income recognized on impaired loans
Average Recorded Investment	130	130
Interest Income Recognized	$ 0	$ 1