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Loans and Allowance for Loan Losses - Troubled Debt Restructuring Modifications (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016 USD ($) contract	Sep. 30, 2015 USD ($) contract	Sep. 30, 2016 USD ($) loans contract	Sep. 30, 2015 USD ($) loans contract
Financing Receivable, Modifications [Line Items]
Number of Contracts Modified | contract	0	1	3	6
Pre-Modification Outstanding Recorded Investment	$ 0	$ 700	$ 1,917	$ 1,704
Post-Modification Outstanding Recorded Investment	0	700	2,048	1,803
Post-Modification Outstanding Recorded Investment at Period End	$ 0	$ 700	$ 2,030	$ 1,680
Number of modified TDR loans that defaulted | loans			0	0
Commercial loans | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Number of Contracts Modified | contract				5
Pre-Modification Outstanding Recorded Investment				$ 1,482
Post-Modification Outstanding Recorded Investment				1,582
Post-Modification Outstanding Recorded Investment at Period End				$ 1,463
Commercial real estate loans | Commercial real estate, investor
Financing Receivable, Modifications [Line Items]
Number of Contracts Modified | contract			2	1
Pre-Modification Outstanding Recorded Investment			$ 1,830	$ 222
Post-Modification Outstanding Recorded Investment			1,826	221
Post-Modification Outstanding Recorded Investment at Period End			$ 1,808	$ 217
Residential loans | Home equity
Financing Receivable, Modifications [Line Items]
Number of Contracts Modified | contract			1
Pre-Modification Outstanding Recorded Investment			$ 87
Post-Modification Outstanding Recorded Investment			222
Post-Modification Outstanding Recorded Investment at Period End			$ 222

X

- Definition

The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings at end of period.

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Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953676-111524

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953676-111524

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+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953676-111524

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Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953682-111524

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