Balance Sheet Components (Tables)

3 Months Ended

Mar. 31, 2013

Balance Sheet Related Disclosures [Abstract]

Schedule Of Available-For-Sale Short-Term

Short-Term Investments

	As of
	March 31, 2013								December 31, 2012
	Cost		Unrealized Gain		Unrealized Loss		Estimated Fair Value		Cost		Unrealized Gain		Unrealized Loss			Estimated Fair Value
U.S. Treasuries	$	140,508	$	19	$	—	$	140,527	$	225,016	$	48	$	(2	)	$	225,062
Certificates of Deposits	2,787		—		—		2,787		2,783		—		—			2,783
Total	$	143,295	$	19	$	—	$	143,314	$	227,799	$	48	$	(2	)	$	227,845

Schedule Of Accounts Receivable And Related Allowances

Accounts receivable, net

	As of
	March 31, 2013			December 31, 2012
Gross accounts receivable	$	259,070		$	276,084
Allowance for doubtful accounts	(1,256		)	(1,256		)
Allowance for sales returns	(17,532		)	(17,031		)
Allowance for price protection	(2,386		)	(1,783		)
Total allowances	(21,174		)	(20,070		)
Total accounts receivable, net	$	237,896		$	256,014

Schedule Of Inventories

Inventories

	As of
	March 31, 2013		December 31, 2012
Raw materials	$	7,295	$	4,447
Finished goods	151,260		170,456
Total inventories	$	158,555	$	174,903

Schedule Of Property And Equipment, Net

Property and equipment, net

	As of
	March 31, 2013			December 31, 2012
Computer equipment	$	7,422		$	7,290
Furniture, fixtures and leasehold improvements	12,789			12,761
Software	22,233			21,521
Machinery and equipment	33,669			31,694
Construction in progress	232			385
Total property and equipment, gross	76,345			73,651
Accumulated depreciation and amortization	(57,958		)	(54,626		)
Total property and equipment, net	$	18,387		$	19,025

Schedule Of Intangibles, Net

Intangibles, net

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

	Gross		Accumulated Amortization			Net
March 31, 2013
Technology	$	33,259	$	(22,852	)	$	10,407
Customer contracts and relationships	16,000		(3,806		)	12,194
Other	6,870		(3,392		)	3,478
Finite-lived intangibles, net	$	56,129	$	(30,050	)	$	26,079

	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 nine months)	$	4,363
2014	5,589
2015	4,972
2016	4,610
2017	3,025
Thereafter	3,520
Total expected amortization expense	$	26,079

Schedule Of Activity Related To Goodwill

Goodwill

	As of
	March 31, 2013		December 31, 2012
Retail	$	45,441	$	45,441
Commercial	35,084		35,084
Service Provider	20,355		20,355
Total	$	100,880	$	100,880

Schedule of Other Non-Current Assets

Other non-current assets

	As of
	March 31, 2013		December 31, 2012
Non-current deferred income taxes	$	16,510	$	16,856
Cost method investment	1,322		1,322
Other	4,450		4,656
Total other non-current assets	$	22,282	$	22,834

Schedule Of Other Accrued Liabilities

Other accrued liabilities

	As of
	March 31, 2013		December 31, 2012
Sales and marketing programs	$	40,257	$	43,652
Warranty obligation	45,876		46,659
Freight	4,601		4,457
Other	28,853		31,487
Total other accrued liabilities	$	119,587	$	126,255