Balance Sheet Details (Tables)

9 Months Ended

Sep. 30, 2014

Balance Sheet Related Disclosures [Abstract]

Schedule of Trade Receivables

Trade receivables, net consist of the following (in thousands):

	September 30, 2014			December 31, 2013
Gross accounts receivables	$	224,871		$	225,134
Returns and related reserves		(40,319	)		(38,938	)
Allowance for doubtful accounts		(3,105	)		(2,827	)
Total	$	181,447		$	183,369

Schedule of Inventories

Inventories consist of the following (in thousands):

	September 30, 2014		December 31, 2013
Raw materials	$	2,657	$	2,740
Work in process		1,018		840
Finished goods		94,274		99,729
Total	$	97,949	$	103,309

Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consist of the following (in thousands):

	September 30, 2014		December 31, 2013
Non-trade receivables	$	5,056	$	9,251
Prepaid expenses		42,548		31,164
Derivative assets		10,454		6,748
Other current assets		5,156		3,189
Total	$	63,214	$	50,352

Schedule of Deferred Revenues

Deferred revenue consists of the following (in thousands):

	September 30, 2014		December 31, 2013
Short-term:
Service	$	173,367	$	170,701
Product		112		307
License		1,828		1,400
Total	$	175,307	$	172,408
Long-term:
Service	$	78,495	$	83,092
Product		—		—
License		3,606		4,375
Total	$	82,101	$	87,467

Changes In Deferred Service Revenue

Changes in the deferred service revenue are as follows (in thousands):

	Three Months Ended						Nine Months Ended
	September 30, 2014			September 30, 2013			September 30, 2014			September 30, 2013
Balance at beginning of period	$	252,995		$	252,091		$	253,793		$	241,773
Additions to deferred service revenue		85,246			87,993			255,705			268,392
Amortization of deferred service revenue		(86,379	)		(86,114	)		(257,636	)		(256,195	)
Balance at end of period	$	251,862		$	253,970		$	251,862		$	253,970

Schedule of Other Accrued Liabilities

Other accrued liabilities consist of the following (in thousands):

	September 30, 2014		December 31, 2013
Accrued expenses	$	27,222	$	22,515
Accrued co-op expenses		4,068		4,629
Restructuring reserves		15,344		11,238
Warranty obligations		10,766		9,475
Derivative liabilities		5,262		6,780
Employee stock purchase plan withholdings		5,129		10,883
Other accrued liabilities		10,688		12,224
Total	$	78,479	$	77,744

Changes in Warranty Obligation

Changes in the warranty obligation are as follows (in thousands):

	Three Months Ended						Nine Months Ended
	September 30, 2014			September 30, 2013			September 30, 2014			September 30, 2013
Balance at beginning of period	$	10,350		$	9,686		$	9,475		$	10,475
Accruals for warranties issued during the period		3,846			4,295			11,977			12,407
Actual charges against warranty reserve during the period		(3,430	)		(4,270	)		(10,686	)		(13,171	)
Balance at end of period	$	10,766		$	9,711		$	10,766		$	9,711