Loans (Schedule of Contractually Required Payments Receivable of Purchased Loans with Deterioration of Credit Quality) (Details) $ in Thousands	Sep. 30, 2016 USD ($)
Financing Receivable, Recorded Investment [Line Items]
Contractually required payments	$ 14,094
Cash Flows Expected to be Collected at Acquisition	11,051
Fair Value of Acquired Loans at Acquisition	8,807
Commercial and Industrial Loans and Leases
Financing Receivable, Recorded Investment [Line Items]
Contractually required payments	220
Commercial Real Estate Loans
Financing Receivable, Recorded Investment [Line Items]
Contractually required payments	10,612
Agricultural Loans
Financing Receivable, Recorded Investment [Line Items]
Contractually required payments	896
Home Equity Loans
Financing Receivable, Recorded Investment [Line Items]
Contractually required payments	0
Consumer Loans
Financing Receivable, Recorded Investment [Line Items]
Contractually required payments	87
Residential Mortgage Loans
Financing Receivable, Recorded Investment [Line Items]
Contractually required payments	$ 2,279

Fair value at acquisition of acquired loans not accounted for as debt securities with evidence of deterioration of credit quality.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 15
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=27045933&loc=d3e13503-111538

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544

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- Definition

Amount of cash flows expected to be collected at acquisition of acquired loans not accounted for as debt securities with evidence of deterioration of credit quality.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 15
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=27045933&loc=d3e13503-111538

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- Definition

Amount of contractually required payments receivable at acquisition of acquired loans not accounted for as debt securities with evidence of deterioration of credit quality.

+ References

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