Loans - Troubled Debt Restructurings on Payments (Details) - Subsequently Defaulted [Member] $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings That Subsequently Defaulted, Number of Loans	0	5	1	6
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment	$ 0	$ 2,735	$ 2,385	$ 2,931
1-4 Family Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings That Subsequently Defaulted, Number of Loans	0	0	1	0
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment	$ 0	$ 0	$ 76	$ 0
1-4 Family Non Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings That Subsequently Defaulted, Number of Loans	0	0	0	0
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment	$ 0	$ 0	$ 0	$ 0
Commercial Real Estate Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings That Subsequently Defaulted, Number of Loans	0	0	0	0
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment	$ 0	$ 0	$ 0	$ 0
Commercial Real Estate Non Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings That Subsequently Defaulted, Number of Loans	0	0	0	0
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment	$ 0	$ 0	$ 0	$ 0
Agriculture Land [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings That Subsequently Defaulted, Number of Loans	0	0	0	0
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment	$ 0	$ 0	$ 0	$ 0
Commercial Real Estate Other Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings That Subsequently Defaulted, Number of Loans	0	0	0	0
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment	$ 0	$ 0	$ 0	$ 0
Commercial Working Capital [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings That Subsequently Defaulted, Number of Loans	0	3	3	3
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment	$ 0	$ 2,644	$ 2,248	$ 2,644
Commercial Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings That Subsequently Defaulted, Number of Loans	0	1	0	2
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment	$ 0	$ 30	$ 0	$ 226
Home Equity and Improvement [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings That Subsequently Defaulted, Number of Loans	0	1	1	1
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment	$ 0	$ 61	$ 61	$ 61
Consumer Finance [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings That Subsequently Defaulted, Number of Loans	0	0	0	0
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment	$ 0	$ 0	$ 0	$ 0

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- Definition

Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953682-111524

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Amount of financing receivable modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953682-111524

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