Loans - Impaired Financing Receivables, Excluding PCI Loans and Valuation Allowance (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Recorded Investment
Total Impaired Loans	$ 36,700	$ 30,291
Unpaid Principal Balance
Total Impaired Loans	46,545	35,519
Related Valuation Allowance	2,728	2,402
Real Estate \| Construction and land development
Recorded Investment
Impaired Loans with No Related Allowance Recorded	15	223
Impaired Loans with an Allowance Recorded	196	251
Total Impaired Loans	211	474
Unpaid Principal Balance
Impaired Loans with No Related Allowance Recorded	229	510
Impaired Loans with an Allowance Recorded	211	264
Total Impaired Loans	440	774
Related Valuation Allowance	22	23
Real Estate \| Commercial real estate
Recorded Investment
Impaired Loans with No Related Allowance Recorded	3,852	3,475
Impaired Loans with an Allowance Recorded	9,786	4,780
Total Impaired Loans	13,638	8,255
Unpaid Principal Balance
Impaired Loans with No Related Allowance Recorded	5,138	4,873
Impaired Loans with an Allowance Recorded	12,967	4,780
Total Impaired Loans	18,105	9,653
Related Valuation Allowance	369	195
Real Estate \| Residential real estate
Recorded Investment
Impaired Loans with No Related Allowance Recorded	13,510	10,272
Impaired Loans with an Allowance Recorded	5,537	8,448
Total Impaired Loans	19,047	18,720
Unpaid Principal Balance
Impaired Loans with No Related Allowance Recorded	18,111	15,063
Impaired Loans with an Allowance Recorded	5,664	8,651
Total Impaired Loans	23,775	23,714
Related Valuation Allowance	805	1,091
Commercial and financial \| Commercial and financial
Recorded Investment
Impaired Loans with No Related Allowance Recorded	1,191	19
Impaired Loans with an Allowance Recorded	2,131	2,436
Total Impaired Loans	3,322	2,455
Unpaid Principal Balance
Impaired Loans with No Related Allowance Recorded	1,414	29
Impaired Loans with an Allowance Recorded	2,309	883
Total Impaired Loans	3,723	912
Related Valuation Allowance	1,498	1,050
Consumer \| Consumer
Recorded Investment
Impaired Loans with No Related Allowance Recorded	280	105
Impaired Loans with an Allowance Recorded	202	282
Total Impaired Loans	482	387
Unpaid Principal Balance
Impaired Loans with No Related Allowance Recorded	291	180
Impaired Loans with an Allowance Recorded	211	286
Total Impaired Loans	502	466
Related Valuation Allowance	$ 34	$ 43

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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 14A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953550-111524

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 15
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-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524

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