Fair Value of Financial Instruments (Details) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Ineffectiveness on Foreign Currency Fair Value Hedges is Immaterial	0
Non-Recurring Fair Value Measurements	$ 0
Assets [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Foreign Currency Contract, Asset, Fair Value Disclosure	$ 493,000	$ 0
Description of Location of Foreign Currency Derivatives on Balance Sheet	Prepaid expense other current assets	Prepaid expense other current assets
Derivative, Notional Amount	$ 7,177,000	$ 0
Liability [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Description of Location of Foreign Currency Derivatives on Balance Sheet	Accrued liabilities other	Accrued liabilities other
Foreign Currency Contracts, Liability, Fair Value Disclosure	$ 0	$ 0
Derivative, Notional Amount	$ 0	$ 6,502,000