Hedging (Tables)

12 Months Ended

Dec. 31, 2016

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Foreign Exchange Contracts, Statement of Financial Position

A summary of the aggregate contractual or notional amounts, balance sheet location and estimated fair values of derivative financial instruments designated as cash flow hedges at December 31, 2016 is as follows (in thousands):

	Contractual / Notional Amount		Consolidated Balance Sheet Classification	Estimated Fair Value
				Asset		(Liability)
Foreign currency forward exchange contracts	$	16,166	Other assets	$	94	$	—

A summary of the aggregate contractual or notional amounts, balance sheet location and estimated fair values of derivative financial instruments designated as cash flow hedges at December 31, 2015 is as follows (in thousands):

	Contractual / Notional Amount		Consolidated Balance Sheet Classification	Estimated Fair Value
				Asset		(Liability)
Foreign currency forward exchange contracts	$	14,024	Other accrued liabilities	$	—	$	(277	)

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value

There were no ineffective hedges for the years ended December 31, 2016, 2015 and 2014. The following table summarizes the effect of derivative instruments on the Consolidated Statements of Operations as follows (in thousands):

	December 31, 2016		December 31, 2015		December 31, 2014
Cost of sales	$	281	$	187	$	178
Research and development	436		305		295
Selling, general and administrative	164		135		154
Total derivative instrument expense	$	881	$	627	$	627

Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss)

The following is a summary of changes to comprehensive income (loss) associated with the Company's hedging activities (in thousands):

	For the Years Ended December 31,
	2016			2015			2014
Beginning balance of unrealized loss on forward exchange contracts	$	(819	)	$	(752	)	$	(875	)
Other comprehensive loss before reclassifications	(589		)	(694		)	(504		)
Amounts reclassified from other comprehensive income	881			627			627
Other comprehensive income (loss)	292			(67		)	123
Ending balance of unrealized loss on forward exchange contracts	$	(527	)	$	(819	)	$	(752	)