Balance Sheet Components (Tables)

9 Months Ended

Sep. 29, 2013

Balance Sheet Related Disclosures [Abstract]

Schedule Of Available-For-Sale Short-Term

Short-Term Investments

	As of
	September 29, 2013								December 31, 2012
	Cost		Unrealized Gain		Unrealized Loss		Estimated Fair Value		Cost		Unrealized Gain		Unrealized Loss			Estimated Fair Value
U.S. Treasuries	$	140,738	$	31	$	—	$	140,769	$	225,016	$	48	$	(2	)	$	225,062
Certificates of Deposits	165		—		—		165		2,783		—		—			2,783
Total	$	140,903	$	31	$	—	$	140,934	$	227,799	$	48	$	(2	)	$	227,845

Schedule Of Accounts Receivable And Related Allowances

Accounts receivable, net

	As of
	September 29, 2013			December 31, 2012
Gross accounts receivable	$	291,217		$	276,084
Allowance for doubtful accounts	(1,256		)	(1,256		)
Allowance for sales returns	(16,879		)	(17,031		)
Allowance for price protection	(3,118		)	(1,783		)
Total allowances	(21,253		)	(20,070		)
Total accounts receivable, net	$	269,964		$	256,014

Schedule Of Inventories

Inventories

	As of
	September 29, 2013		December 31, 2012
Raw materials	$	6,869	$	4,447
Work in process	4,814		—
Finished goods	199,592		170,456
Total inventories	$	211,275	$	174,903

Schedule Of Property And Equipment, Net

Property and equipment, net

	As of
	September 29, 2013			December 31, 2012
Computer equipment	$	8,088		$	7,290
Furniture, fixtures and leasehold improvements	13,649			12,761
Software	24,328			21,521
Machinery and equipment	46,546			31,694
Construction in progress	34			385
Total property and equipment, gross	92,645			73,651
Accumulated depreciation and amortization	(67,195		)	(54,626		)
Total property and equipment, net	$	25,450		$	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
September 29, 2013
Technology	$	60,999	$	(27,114	)	$	33,885
Customer contracts and relationships	56,500		(7,349		)	49,151
Other	10,545		(5,050		)	5,495
Finite-lived intangibles, net	128,044		(39,513		)	88,531
Indefinite-lived intangible assets	100		—			100
Total purchased intangible assets, net	$	128,144	$	(39,513	)	$	88,631

	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 three months)	$	4,514
2014	17,875
2015	17,258
2016	16,896
2017	11,361
Thereafter	20,627
Total expected amortization expense	$	88,531

Schedule Of Activity Related To Goodwill

Goodwill

The changes in the carrying amount of goodwill during the nine months ended September 29, 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		53,841		55,036
Goodwill at September 29, 2013	$	45,441	$	36,279	$	74,196	$	155,916

Schedule of Other Assets, Noncurrent

Other non-current assets

	As of
	September 29, 2013		December 31, 2012
Non-current deferred income taxes	$	18,474	$	16,856
Cost method investment	1,322		1,322
Other	4,812		4,656
Total other non-current assets	$	24,608	$	22,834

Schedule Of Other Accrued Liabilities

Other accrued liabilities

	As of
	September 29, 2013		December 31, 2012
Sales and marketing programs	$	44,595	$	43,652
Warranty obligation	45,690		46,659
Freight	7,353		4,457
Other	39,069		31,487
Total other accrued liabilities	$	136,707	$	126,255