Non Purchased Loans - Impaired Loans Recognized (Details) - Non-Purchased - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment With Allowance	$ 27,082	$ 23,045
Recorded Investment With No Allowance	10,225	3,403
Total Recorded Investment	37,307	26,448
Unpaid Principal Balance With Allowance	29,265	25,346
Unpaid Principal Balance With No Allowance	11,905	5,025
Total Unpaid Principal Balance	41,170	30,371
With Related Allowance	1,759	977
With No Related Allowance	0	0
Related Allowance	1,759	977
Average Recorded Investment With Related Allowance	28,513	23,599
Average Recorded Investment With No Related Allowance	9,675	3,481
Average recorded investment in impaired loans	38,188	27,080	$ 21,998
Interest Income Recognized With Related Allowance	352	462
Interest Income Recognized With No Related Allowance	471	87
Interest Income, Total	823	549
Commercial, financial, agricultural
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment With Allowance	5,722	1,834
Recorded Investment With No Allowance	0	0
Unpaid Principal Balance With Allowance	6,623	2,280
Unpaid Principal Balance With No Allowance	0	0
With Related Allowance	1,222	163
With No Related Allowance	0	0
Average Recorded Investment With Related Allowance	6,787	2,079
Average Recorded Investment With No Related Allowance	0	0
Interest Income Recognized With Related Allowance	30	35
Interest Income Recognized With No Related Allowance	0	0
Lease financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment With Allowance	226	0
Recorded Investment With No Allowance	0	0
Unpaid Principal Balance With Allowance	226	0
Unpaid Principal Balance With No Allowance	0	0
With Related Allowance	3	0
With No Related Allowance	0	0
Average Recorded Investment With Related Allowance	231	0
Average Recorded Investment With No Related Allowance	0	0
Interest Income Recognized With Related Allowance	0	0
Interest Income Recognized With No Related Allowance	0	0
Real estate – construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment With Allowance	0	7,302
Recorded Investment With No Allowance	9,145	2,165
Unpaid Principal Balance With Allowance	0	7,302
Unpaid Principal Balance With No Allowance	9,145	2,165
With Related Allowance	0	63
With No Related Allowance	0	0
Average Recorded Investment With Related Allowance	0	7,180
Average Recorded Investment With No Related Allowance	8,516	2,165
Interest Income Recognized With Related Allowance	0	162
Interest Income Recognized With No Related Allowance	438	55
Real estate – 1-4 family mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment With Allowance	13,689	9,077
Recorded Investment With No Allowance	0	0
Unpaid Principal Balance With Allowance	14,018	9,767
Unpaid Principal Balance With No Allowance	0	0
With Related Allowance	143	61
With No Related Allowance	0	0
Average Recorded Investment With Related Allowance	14,364	9,212
Average Recorded Investment With No Related Allowance	0	0
Interest Income Recognized With Related Allowance	200	191
Interest Income Recognized With No Related Allowance	0	0
Real estate – commercial mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment With Allowance	7,361	4,609
Recorded Investment With No Allowance	1,080	1,238
Unpaid Principal Balance With Allowance	8,307	5,765
Unpaid Principal Balance With No Allowance	2,760	2,860
With Related Allowance	390	689
With No Related Allowance	0	0
Average Recorded Investment With Related Allowance	7,034	4,889
Average Recorded Investment With No Related Allowance	1,159	1,316
Interest Income Recognized With Related Allowance	120	72
Interest Income Recognized With No Related Allowance	33	32
Installment loans to individuals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded Investment With Allowance	84	223
Recorded Investment With No Allowance	0	0
Unpaid Principal Balance With Allowance	91	232
Unpaid Principal Balance With No Allowance	0	0
With Related Allowance	1	1
With No Related Allowance	0	0
Average Recorded Investment With Related Allowance	97	239
Average Recorded Investment With No Related Allowance	0	0
Interest Income Recognized With Related Allowance	2	2
Interest Income Recognized With No Related Allowance	$ 0	$ 0

Impaired financing receivable with no related allowance.

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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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