Fair Value Hierarchy (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Cash equivalents	$ 19,604	$ 22,516
Deferred compensation plans	4,416	4,000
Deferred compensation plans liability	4,416	4,000
Assets, Fair Value Disclosure	29,919	30,060
Liabilities, Fair Value Disclosure	14,397	11,787
Fair Value, Inputs, Level 1 [Member]
Cash equivalents	19,604	22,516
Assets, Fair Value Disclosure	19,604	22,516
Fair Value, Inputs, Level 2 [Member]
Deferred compensation plans	4,416	4,000
Deferred compensation plans liability	4,416	4,000
Assets, Fair Value Disclosure	10,315	7,544
Liabilities, Fair Value Disclosure	14,397	11,787
Foreign currency contracts related to customer sales contracts
Foreign currency contracts designated as hedges, Assets	1,322	988
Foreign currency contracts not designated as hedges, Assets	496	664
Foreign currency contracts designated as hedges, Liabilities	8,805	6,368
Foreign currency contracts not designated as hedges, Liability	259	969
Foreign currency contracts related to customer sales contracts \| Fair Value, Inputs, Level 2 [Member]
Foreign currency contracts designated as hedges, Assets	1,322	988
Foreign currency contracts not designated as hedges, Assets	496	664
Foreign currency contracts designated as hedges, Liabilities	8,805	6,368
Foreign currency contracts not designated as hedges, Liability	259	969
Foreign currency contracts related to supplier purchase contracts
Foreign currency contracts designated as hedges, Assets	4,031	1,554
Foreign currency contracts not designated as hedges, Assets	50	338
Foreign currency contracts designated as hedges, Liabilities	519	322
Foreign currency contracts not designated as hedges, Liability	398	128
Foreign currency contracts related to supplier purchase contracts \| Fair Value, Inputs, Level 2 [Member]
Foreign currency contracts designated as hedges, Assets	4,031	1,554
Foreign currency contracts not designated as hedges, Assets	50	338
Foreign currency contracts designated as hedges, Liabilities	519	322
Foreign currency contracts not designated as hedges, Liability	$ 398	$ 128

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Cash
-URI http://asc.fasb.org/extlink&oid=6506951

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Cash Equivalents
-URI http://asc.fasb.org/extlink&oid=6507016

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Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements. Represents currently earned compensation under compensation arrangements that is not actually paid until a later date.

+ References

No definition available.

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Carrying amount as of the balance sheet date of assets held under deferred compensation agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

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.

+ References

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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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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Fair value as of the balance sheet date of all foreign currency derivative assets not designated as hedging instruments.

+ 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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Fair value as of the balance sheet date of all foreign currency derivative liabilities not designated as hedging instruments.

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- Definition

Fair value of financial and nonfinancial obligations.

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