Balance Sheet Components (Tables)

12 Months Ended

Dec. 31, 2013

Balance Sheet Related Disclosures [Abstract]

Schedule Of Available-For-Sale Short-Term

Short-Term Investments

	As of
	December 31, 2013									December 31, 2012
	Cost		Unrealized Gain		Unrealized Loss			Estimated Fair Value		Cost		Unrealized Gain		Unrealized Loss			Estimated Fair Value
U.S. Treasuries	$	104,595	$	7	$	(1	)	$	104,601	$	225,016	$	48	$	(2	)	$	225,062
Certificates of Deposits	159		—		—			159		2,783		—		—			2,783
Mutual Funds	385		—		—			385		—		—		—			—
Total	$	105,139	$	7	$	(1	)	$	105,145	$	227,799	$	48	$	(2	)	$	227,845

Schedule Of Accounts Receivable And Related Allowances

Accounts receivable, net

	As of
	December 31, 2013			December 31, 2012
Gross accounts receivable	$	289,479		$	276,084
Allowance for doubtful accounts	(1,255		)	(1,256		)
Allowance for sales returns	(17,467		)	(17,031		)
Allowance for price protection	(4,273		)	(1,783		)
Total allowances	(22,995		)	(20,070		)
Total accounts receivable, net	$	266,484		$	256,014

Schedule Of Inventories

Inventories

	As of
	December 31, 2013		December 31, 2012
Raw materials	$	8,676	$	4,447
Work-in-process	6,233		—
Finished goods	209,547		170,456
Total inventories	$	224,456	$	174,903

Schedule Of Property And Equipment, Net

Property and equipment, net

	As of
	December 31, 2013			December 31, 2012
Computer equipment	$	8,527		$	7,290
Furniture, fixtures and leasehold improvements	14,019			12,761
Software	25,722			21,521
Machinery and equipment	50,656			31,694
Construction in progress	21			385
Total property and equipment, gross	98,945			73,651
Accumulated depreciation and amortization	(71,751		)	(54,626		)
Total property and equipment, net	$	27,194		$	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
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 intangible assets	100		—			100
Total purchased intangible assets, net	$	128,144	$	(44,026	)	$	84,118

	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 finite-lived intangibles for each of the next five years and thereafter is as follows:

Year Ending December 31,	Amount
2014	$	17,875
2015	17,258
2016	16,896
2017	11,361
2018	7,859
Thereafter	12,769
Total expected amortization expense	$	84,018

Schedule Of Activity Related To Goodwill

Goodwill

The changes in the carrying amount of goodwill during the years ended December 31, 2013 and 2012 are as follows:

	Retail		Commercial		Service Provider		Total
Goodwill at December 31, 2011	$	33,546	$	32,043	$	20,355	$	85,944
Goodwill acquired during the period	11,895		3,041		—		14,936
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 December 31, 2013	$	45,441	$	36,279	$	74,196	$	155,916

Schedule of Other Assets, Noncurrent

Other non-current assets

	As of
	December 31, 2013		December 31, 2012
Non-current deferred income taxes	$	20,235	$	16,856
Cost method investment	1,322		1,322
Other	5,034		4,656
Total other non-current assets	$	26,591	$	22,834

Schedule Of Other Accrued Liabilities

Other accrued liabilities

	As of
	December 31, 2013		December 31, 2012
Sales and marketing programs	$	47,941	$	43,652
Warranty obligation	48,754		46,659
Freight	5,790		4,457
Other	40,733		31,487
Total other accrued liabilities	$	143,218	$	126,255