Foreign Currency Forward Exchange Contracts - Fair Value and Presentation in Consolidated Balance Sheets for Derivatives (Details) - USD ($) $ in Thousands		Jun. 30, 2016	Dec. 31, 2015
Derivative [Line Items]
Derivative assets	[1]	$ 548	$ 36
Derivative liabilities	[1]	373	524
Foreign Exchange Contracts | Other current assets | Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative assets		548	36
Foreign Exchange Contracts | Accrued liabilities | Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative liabilities		$ 373	$ 524

[1] Based on observable market transactions of spot and forward rates