Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2017

Assets Measured at Fair Value on Recurring Basis

The following tables present information about our financial assets measured at fair value on a recurring basis as of September 30, 2017 and December 31, 2016 based on the three-tier fair value hierarchy (in thousands):



	Fair Value Measurement at September 30, 2017
	Level 1		Level 2		Total
Description
Corporate bonds	$	—	$	152,888	152,888
U.S. treasury securities	—		28,434		28,434
Asset-backed securities	—		24,471		24,471
Commercial paper	—		15,397		15,397
Money market funds	12,354		—		12,354
Agency securities	—		8,532		8,532
Total	$	12,354	$	229,722	$	242,076
Included in cash and cash equivalents					$	17,854
Included in marketable securities					$	224,222



	Fair Value Measurement at December 31, 2016
	Level 1		Level 2		Total
Description
Corporate bonds	$	—	$	124,930	$	124,930
Asset-backed securities	—		32,567		32,567
U.S. treasury securities	—		30,585		30,585
Commercial paper	—		9,787		9,787
Agency securities	—		8,489		8,489
Money market funds	3,545		$	—	$	3,545
Total	$	3,545	$	206,358	$	209,903
Included in cash and cash equivalents					$	3,545
Included in marketable securities					$	206,358

Schedule of Marketable Securities Classified by Contractual Maturity

The following table classifies our marketable securities by contractual maturity as of September 30, 2017 and December 31, 2016 (in thousands):



	September 30, 2017		December 31, 2016
Due in one year or less	$	133,959	$	131,190
Due after one year	90,263		75,168
Total	$	224,222	$	206,358

Schedule of Derivative Instruments on Consolidated Balance Sheets

The following tables present information about our derivative instruments on our consolidated balance sheets as of September 30, 2017 and December 31, 2016 (in thousands):



	September 30, 2017
	Asset Derivatives			Liability Derivatives
Derivative Instrument	Balance Sheet Location	Fair Value (Level 2)		Balance Sheet Location	Fair Value (Level 2)
Foreign currency forward contracts	Other current assets	$	2,459	Accrued liabilities	$	1,873
Total		$	2,459		$	1,873



	December 31, 2016
	Asset Derivatives			Liability Derivatives
Derivative Instrument	Balance Sheet Location	Fair Value (Level 2)		Balance Sheet Location	Fair Value (Level 2)
Foreign currency forward contracts	Other current assets	$	868	Accrued liabilities	$	4,280
Total		$	868		$	4,280

Schedule of Derivative Instruments on Statement of Operations

The following table presents information about our derivative instruments on the statement of operations for the three and nine months ended September 30, 2017 and 2016 (in thousands):



		Three Months Ended September 30, 2017				Nine Months Ended September 30, 2017
Hedging Instrument	Location of Gain (Loss) Reclassified into Earnings	Gain Recognized in AOCI		Gain Reclassified from AOCI into Earnings		Gain Recognized in AOCI		Loss Reclassified from AOCI into Earnings
Foreign currency forward contracts	Revenue, cost of revenue, operating expenses	$	629	$	285	$	3,117	$	(575	)
Total		$	629	$	285	$	3,117	$	(575	)



		Three Months Ended September 30, 2016					Nine Months Ended September 30, 2016
Hedging Instrument	Location of Loss Reclassified into Earnings	Gain Recognized in AOCI		Loss Reclassified from AOCI into Earnings			Loss Recognized in AOCI			Loss Reclassified from AOCI into Earnings
Foreign currency forward contracts	Revenue, cost of revenue, operating expenses	$	207	$	(209	)	$	(218	)	$	(357	)
Total		$	207	$	(209	)	$	(218	)	$	(357	)