Derivatives - Schedule of Derivatives Instruments in Statements of Financial Position (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Derivatives designated as hedging instruments \| Interest rate swap \| Other assets \| Fair value hedges
Derivatives at fair value
Asset derivatives, designated as hedging at Fair value	$ 400	$ 476
Derivatives designated as hedging instruments \| Interest rate swap \| Accrued interest and other liabilities \| Cash flow hedges
Derivatives at fair value
Liability derivatives, designated as hedging at Fair value	6,584	7,639
Derivatives designated as hedging instruments \| Interest rate swap \| Accrued interest and other liabilities \| Fair value hedges
Derivatives at fair value
Liability derivatives, designated as hedging at Fair value	920	845
Derivatives not designated as hedging instruments \| Interest rate swap \| Other assets
Derivatives at fair value
Asset derivatives, designated as hedging at Fair value	2,255	2,755
Derivatives not designated as hedging instruments \| Interest rate swap \| Accrued interest and other liabilities
Derivatives at fair value
Liability derivatives, designated as hedging at Fair value	2,349	2,736
Derivatives not designated as hedging instruments \| Foreign exchange forward contracts \| Other assets
Derivatives at fair value
Asset derivatives, not designated as hedging at Fair value	23	52
Derivatives not designated as hedging instruments \| Foreign exchange forward contracts \| Accrued interest and other liabilities
Derivatives at fair value
Liability derivatives, not designated as hedging at Fair value	$ 4	$ 5

Aggregate fair value of all derivative assets designated as hedging instruments. Includes instruments designated as cash flow hedges, fair value hedges, and hedges of net investments in foreign operations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13433-108611

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- Definition

Aggregate fair value of all derivative liabilities designated as hedging instruments. Includes instruments designated as cash flow hedges, fair value hedges, and hedges of net investments in foreign operations.

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- Definition

Fair value as of the balance sheet date of derivative instrument not designated as hedging instrument and classified as an asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624163-113959

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- Definition

Fair value as of the balance sheet date of derivative instrument not designated as hedging instrument and classified as a liability.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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