Balance Sheet Components (Tables)

6 Months Ended

Jun. 30, 2013

Balance Sheet Related Disclosures [Abstract]

Schedule Of Available-For-Sale Short-Term

Short-Term Investments

	As of
	June 30, 2013									December 31, 2012
	Cost		Unrealized Gain		Unrealized Loss			Estimated Fair Value		Cost		Unrealized Gain		Unrealized Loss			Estimated Fair Value
U.S. Treasuries	$	141,001	$	12	$	(7	)	$	141,006	$	225,016	$	48	$	(2	)	$	225,062
Certificates of Deposits	163		—		—			163		2,783		—		—			2,783
Total	$	141,164	$	12	$	(7	)	$	141,169	$	227,799	$	48	$	(2	)	$	227,845

Schedule Of Accounts Receivable And Related Allowances

Accounts receivable, net

	As of
	June 30, 2013			December 31, 2012
Gross accounts receivable	$	307,591		$	276,084
Allowance for doubtful accounts	(1,256		)	(1,256		)
Allowance for sales returns	(16,122		)	(17,031		)
Allowance for price protection	(1,730		)	(1,783		)
Total allowances	(19,108		)	(20,070		)
Total accounts receivable, net	$	288,483		$	256,014

Schedule Of Inventories

Inventories

	As of
	June 30, 2013			December 31, 2012
Raw materials	$	6,072		$	4,447
Work in process	5,098		5,098,000	—
Finished goods	174,213			170,456
Total inventories	$	185,383		$	174,903

Schedule Of Property And Equipment, Net

Property and equipment, net

	As of
	June 30, 2013			December 31, 2012
Computer equipment	$	7,699		$	7,290
Furniture, fixtures and leasehold improvements	13,125			12,761
Software	23,790			21,521
Machinery and equipment	43,366			31,694
Construction in progress	794			385
Total property and equipment, gross	88,774			73,651
Accumulated depreciation and amortization	(62,377		)	(54,626		)
Total property and equipment, net	$	26,397		$	19,025

Schedule Of Purchased Intangibles, Net

Intangibles, net

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

	Gross		Accumulated Amortization			Net
June 30, 2013
Technology	$	55,599	$	(24,899	)	$	30,700
Customer contracts and relationships	56,500		(5,325		)	51,175
Other	10,545		(4,771		)	5,774
Finite-lived intangibles, net	122,644		(34,995		)	87,649
Indefinite-lived intangible assets	7,500		—			7,500
Total purchased intangible assets, net	$	130,144	$	(34,995	)	$	95,149

	Gross		Accumulated Amortization			Net
December 31, 2012
Technology	$	32,259	$	(22,065	)	$	10,194
Customer contracts and relationships	16,000		(3,301		)	12,699
Other	6,870		(3,142		)	3,728
Finite-lived intangibles, net	55,129		(28,508		)	26,621
Indefinite-lived intangible assets	1,000		—			1,000
Total purchased intangible assets, net	$	56,129	$	(28,508	)	$	27,621

Schedule Of Estimated Amortization Expense Related To Intangibles

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

Year Ending December 31	Amount
2013 (remaining six months)	$	8,111
2014	16,013
2015	14,663
2016	14,033
2017	9,392
Thereafter	25,437
Total expected amortization expense	$	87,649

Schedule Of Activity Related To Goodwill

Goodwill

The changes in the carrying amount of goodwill during the six months ended June 30, 2013 are as follows:

	Retail		Commercial		Service Provider		Total
Goodwill at December 31, 2012	$	45,441	$	35,084	$	20,355	$	100,880
Goodwill acquired during the period	—		1,195		53,330		54,525
Goodwill at June 30, 2013	$	45,441	$	36,279	$	73,685	$	155,405

Schedule of Other Assets, Noncurrent

Other non-current assets

	As of
	June 30, 2013		December 31, 2012
Non-current deferred income taxes	$	16,498	$	16,856
Cost method investment	1,322		1,322
Other	5,064		4,656
Total other non-current assets	$	22,884	$	22,834

Schedule Of Other Accrued Liabilities

Other accrued liabilities

	As of
	June 30, 2013		December 31, 2012
Sales and marketing programs	$	43,913	$	43,652
Warranty obligation	46,175		46,659
Freight	6,491		4,457
Other	38,305		31,487
Total other accrued liabilities	$	134,884	$	126,255