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Condensed Consolidated Financial Statement Details (Tables)

9 Months Ended

Sep. 30, 2017

Property, Plant and Equipment [Abstract]

Schedule of Inventory

	September 30, 2017				December 31, 2016
	(in thousands)
Raw materials	$	6,985			$	6,669
Finished goods	8,959				8,401
Total inventory	$	15,944			$	15,070

Schedule of Property and Equipment, Net

	Useful Life		September 30, 2017				December 31, 2016
	(in years)		(in thousands)
Equipment	1-3		$	46,161			$	41,815
Software	1-3		3,859				3,801
Furniture and fixtures	1-3		820				865
Leasehold improvements	2-8		3,772				2,724
Construction in progress			74				258
Property and equipment, gross			54,686				49,463
Less: accumulated depreciation			(45,155		)		(41,244		)
Property and equipment, net			$	9,531			$	8,219

Schedule of Acquired Intangible Assets

Purchased intangible assets, net, consisted of the following (in thousands):

	September 30, 2017												December 31, 2016
	Cost				Accumulated Amortization				Net				Cost				Accumulated Amortization				Net
Developed technology	$	5,050			$	(1,262	)		$	3,788			$	5,050			$	(505	)		$	4,545
Patents	2,936				(1,173		)		1,763				2,936				(848		)		2,088
Total	$	7,986			$	(2,435	)		$	5,551			$	7,986			$	(1,353	)		$	6,633

Schedule of Future Amortization Expense for Purchased Finite-lived Intangible Assets

Future amortization expense for purchased intangible assets as of September 30, 2017 is as follows (in thousands):

Fiscal Year
Remainder of 2017		$	361
2018		1,442
2019		1,442
2020		1,442
2021		864
		$	5,551

Schedule of Accrued Liabilities

	September 30, 2017				December 31, 2016
	(in thousands)
Accrued compensation and benefits	$	19,828			$	22,326
Accrued tax liabilities	3,040				3,340
Other	4,736				5,859
Total accrued liabilities	$	27,604			$	31,525

Schedule of Deferred Revenue

	September 30, 2017				December 31, 2016
	(in thousands)
Deferred revenue:
Products	$	3,076			$	4,182
Services	87,928				88,726
Total deferred revenue	91,004				92,908
Less: current portion	(59,294		)		(61,334		)
Non-current portion	$	31,710			$	31,574

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