Balance Sheet Components (Tables)

12 Months Ended

Dec. 31, 2014

Balance Sheet Related Disclosures [Abstract]

Schedule Of Available-For-Sale Short-Term

	As of
	December 31, 2014									December 31, 2013
	Cost		Unrealized Gain		Unrealized Loss			Estimated Fair Value		Cost		Unrealized Gain		Unrealized Loss			Estimated Fair Value
U.S. treasuries	$	114,944	$	6	$	(15	)	$	114,935	$	104,595	$	7	$	(1	)	$	104,601
Certificates of deposits	158		—		—			158		159		—		—			159
Total	$	115,102	$	6	$	(15	)	$	115,093	$	104,754	$	7	$	(1	)	$	104,760

Schedule Of Accounts Receivable And Related Allowances

Accounts receivable, net

	As of
	December 31, 2014			December 31, 2013
Gross accounts receivable	$	296,239		$	289,479
Allowance for doubtful accounts	(1,255		)	(1,255		)
Allowance for sales returns	(17,489		)	(17,467		)
Allowance for price protection	(1,806		)	(4,273		)
Total allowances	(20,550		)	(22,995		)
Total accounts receivable, net	$	275,689		$	266,484

Schedule Of Inventories

Inventories

	As of
	December 31, 2014		December 31, 2013
Raw materials	$	3,625	$	8,676
Work-in-process	8		6,233
Finished goods	219,250		209,547
Total inventories	$	222,883	$	224,456

Schedule Of Property And Equipment, Net

Property and equipment, net

	As of
	December 31, 2014			December 31, 2013
Computer equipment	$	9,779		$	8,527
Furniture, fixtures and leasehold improvements	19,379			14,019
Software	29,294			25,722
Machinery and equipment	60,135			50,656
Construction in progress	—			21
Total property and equipment, gross	118,587			98,945
Accumulated depreciation and amortization	(88,893		)	(71,751		)
Total property and equipment, net	$	29,694		$	27,194

Schedule Of Purchased Intangibles, Net

Intangibles, net

The following tables present details of the Company’s purchased intangibles:

	Gross		Accumulated Amortization			Net
December 31, 2014
Technology	$	61,099	$	(39,341	)	$	21,758
Customer contracts and relationships	56,500		(16,205		)	40,295
Other	10,545		(6,368		)	4,177
Total intangibles, net	128,144		(61,914		)	66,230

	Gross		Accumulated Amortization			Net
December 31, 2013
Technology	$	60,999	$	(29,593	)	$	31,406
Customer contracts and relationships	56,500		(9,120		)	47,380
Other	10,545		(5,313		)	5,232
Finite-lived intangibles, net	128,044		(44,026		)	84,018
Indefinite-lived intangibles	100		—			100
Total intangibles, net	$	128,144	$	(44,026	)	$	84,118

Schedule Of Estimated Amortization Expense Related To Intangibles

Estimated amortization expense related to finite-lived intangibles for each of the next five years and thereafter is as follows:

Year Ending December 31,	Amount
2015	$	17,283
2016	16,921
2017	11,386
2018	7,871
2019	6,028
Thereafter	6,741
Total expected amortization expense	$	66,230

Schedule Of Activity Related To Goodwill

Goodwill

The changes in the carrying amount of goodwill during the years ended December 31, 2014 and 2013 are as follows:

	Retail		Commercial		Service Provider			Total
Goodwill at December 31, 2012	$	45,442	$	35,084	$	20,355		$	100,881
Goodwill acquired during the period	—		1,195		53,841			55,035
Goodwill at December 31, 2013	45,442		36,279		74,196			155,916
Goodwill impairment charges	—		—		(74,196		)	(74,196		)
Goodwill at December 31, 2014	$	45,442	$	36,279	$	—		$	81,721

Schedule of Other Assets, Noncurrent

Other non-current assets

	As of
	December 31, 2014		December 31, 2013
Non-current deferred income taxes	$	38,696	$	20,235
Cost method investments	1,322		1,322
Other	8,059		5,034
Total other non-current assets	$	48,077	$	26,591

Schedule Of Other Accrued Liabilities

Other accrued liabilities

	As of
	December 31, 2014		December 31, 2013
Sales and marketing programs	$	54,582	$	47,941
Warranty obligation	44,888		48,754
Freight	6,827		5,790
Other	37,445		40,733
Total other accrued liabilities	$	143,742	$	143,218