Balance Sheet Components (Tables)

9 Months Ended

Sep. 30, 2014

Balance Sheet Components [Abstract]

Schedule of Accounts Receivable

Accounts receivable, net consists of the following (in thousands):

	September 30, 2014			December 31, 2013
Accounts receivable	$	87,259		$	80,338
Allowance for doubtful accounts	(945		)	(810		)
Product sales return reserve	(2,251		)	(1,529		)
Accounts receivable, net	$	84,063		$	77,999

Schedule of Inventories

Inventories consist of the following (in thousands):

	September 30, 2014		December 31, 2013
Raw materials	$	15,470	$	18,286
Finished goods	47,117		48,808
Total inventories	$	62,587	$	67,094

Schedule of Property and Equipment, net

Property and equipment, net consists of the following (in thousands):

	September 30, 2014			December 31, 2013
Equipment and machinery	$	17,243		$	13,733
Computer hardware and software	6,890			3,688
Furniture and fixtures	1,374			1,352
Leasehold improvements	19,520			19,407
Building	35,154			35,154
Construction-in-process	1,127			1,056
Property and equipment, gross	81,308			74,390
Less: accumulated depreciation	(14,317		)	(7,186		)
Property and equipment, net	$	66,991		$	67,204

Schedule of Accrued Liabilities

Accrued liabilities consist of the following (in thousands):

	September 30, 2014		December 31, 2013
Accrued payroll related costs	$	18,866	$	9,103
Accrued warranty costs	3,464		5,075
Accrued accounts payable	4,058		5,370
Accrued manufacturing costs	1,724		3,835
Accrued professional fees	1,422		1,220
Accrued taxes	1,215		927
Other	1,497		1,379
Total accrued liabilities	$	32,246	$	26,909

Schedule of Warranty Accrual

The following table summarizes the activity related to our accrued liability for estimated future warranty costs (in thousands):

	Nine Months Ended September 30,
	2014			2013
Warranty accrual, beginning of period	$	5,075		$	5,314
Liabilities accrued for warranties issued during the period	1,839			4,192
Warranty costs incurred during the period	(1,689		)	(2,605		)
Adjustments related to change in estimate	(1,761		)	—
Warranty accrual, end of period	$	3,464		$	6,901

Schedule of Deferred Revenue

Deferred revenue consists of the following (in thousands):

	September 30, 2014		December 31, 2013
Current portion of deferred revenue	$	40,277	$	41,306
Long-term portion of deferred revenue	37,415		17,598
Total deferred revenue	$	77,692	$	58,904

Other Assets Disclosure [Text Block]

Other assets consist of the following (in thousands):

	September 30, 2014		December 31, 2013
Investments	$	18,000	$	—
Restricted cash	—		4,040
Deposits	2,578		2,581
Spares	4,429		2,757
Other assets	2,552		631
Total other assets	$	27,559	$	10,009