Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Name:	us-gaap_DerivativeAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Fair Value of Financial Instruments Fair Value Measurements (Details) - Estimate of Fair Value Measurement - Foreign currency forward contracts - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Financial Assets Fair Value Disclosure
Foreign currency forward contracts	$ 94,000
Financial Liabilities Fair Value Disclosure
Foreign currency forward contracts		$ (277,000)
Level 1
Financial Assets Fair Value Disclosure
Foreign currency forward contracts	0
Financial Liabilities Fair Value Disclosure
Foreign currency forward contracts		0
Level 2
Financial Assets Fair Value Disclosure
Foreign currency forward contracts	94,000
Financial Liabilities Fair Value Disclosure
Foreign currency forward contracts		(277,000)
Level 3
Financial Assets Fair Value Disclosure
Foreign currency forward contracts	$ 0
Financial Liabilities Fair Value Disclosure
Foreign currency forward contracts		$ 0