Derivatives and Hedging (Tables)

12 Months Ended

Dec. 31, 2017

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Summary of Fair Value of Derivative Instruments by Contract Type and Location of Asset and/or Liability on Consolidated Condensed Balance Sheets

The following table summarizes the fair value of the Company's foreign currency forward contracts as well as the location of the asset and/or liability on the consolidated balance sheets at December 31, 2017 and 2016 (in thousands):

	Asset Derivatives
	December 31, 2017			December 31, 2016
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Derivatives designated as cash flow hedging instruments:
Foreign currency forward contracts	Other current assets	$	168	Other current assets	$	2,660
Derivatives not designated as hedging instruments:
Foreign currency forward contracts	Other current assets	$	11	Other current assets	$	864

	Liability Derivatives
	December 31, 2017			December 31, 2016
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Derivatives designated as cash flow hedging instruments:
Foreign currency forward contracts	Accounts payable and accrued expenses	$	194	Accounts payable and accrued expenses	$	28
Derivatives not designated as hedging instruments:
Foreign currency forward contracts	Accounts payable and accrued expenses	$	45	Accounts payable and accrued expenses	$	57

Schedule of Cash Flow Hedging Instruments, Statements of Financial Performance and Financial Position, Location

The following tables summarize the net effect of all cash flow hedges on the consolidated financial statements for the year ended December 31, 2017 and 2016 (in thousands):

	Net Gain (Loss) Recognized in Other Comprehensive Income (Effective Portion)
	Year Ended December 31,
Derivatives designated as cash flow hedging instruments	2017			2016			2015
Foreign currency forward contracts	$	(2,679	)	$	(538	)	$	2,316

	Net Gain (Loss) Reclassified from Other Comprehensive Income into Earnings (Effective Portion)
	Year Ended December 31,
Derivatives designated as cash flow hedging instruments	2017			2016			2015
Foreign currency forward contracts	$	(187	)	$	(2,514	)	$	1,791

	Net Gain Recognized in Other Income (Expense) (Ineffective Portion)
	Year Ended December 31,
Derivatives designated as cash flow hedging instruments	2017		2016		2015
Foreign currency forward contracts	$	—	$	—	$	1,149

Location of Gains and Losses in Consolidated Condensed Statements of Operations that were Recognized and Derivative Contract Type

The following table summarizes the location of gains and losses on the consolidated statements of operations that were recognized during the years ended December 31, 2017, 2016 and 2015, respectively, in addition to the derivative contract type (in thousands):

		Amount of Gain (Loss) Recognized in Income on Derivative Instruments
Derivatives not designated as hedging instruments	Location of gain (loss) recognized in  income on derivative instruments	Years Ended December 31,
		2017			2016			2015
Foreign currency forward contracts	Other income (expense), net	$	(7,985	)	$	(6,563	)	$	1,322