Balance Sheet Components (Details) (USD $)	Jul. 31, 2011		Jan. 30, 2011
Inventories
Raw Materials	$ 76,584,000		$ 67,880,000
Work in-process	75,266,000		72,698,000
Finished goods	210,061,000		204,947,000
Total inventories	361,911,000		345,525,000
Prepaid Expenses and Other Current assets:
Prepaid maintenance	13,086,000		12,165,000
Prepaid insurance	3,142,000		3,512,000
Prepaid taxes	0		1,364,000
Prepaid rent	3,720,000		3,599,000
Other	14,977,000		11,996,000
Total prepaid expenses and other	34,925,000		32,636,000
Accrued Liabilities
Deferred revenue	277,594,000		245,596,000
Accrued customer programs (1)	185,536,000	[1]	171,163,000	[1]
Warranty accrual (2)	53,819,000	[2]	107,897,000	[2]
Accrued payroll and related expenses	67,487,000		71,915,000
Accrued legal settlement	30,600,000	[3]	30,600,000	[3]
Deferred rent	2,014,000		3,268,000
Taxes payable, short term	7,278,000		4,576,000
Other	38,158,000		21,529,000
Total accrued liabilities and other	662,486,000		656,544,000
Other Long-term Liabilities
Deferred income tax liability	29,029,000		46,129,000
Income taxes payable, long term	60,078,000		57,590,000
Asset retirement obligation	9,651,000		9,694,000
Deferred Revenue	32,699,000		163,000,000
Other long-term liabilities	60,706,000		71,300,000
Total other long-term liabilities	192,163,000		347,713,000
Outstanding Inventory Purchase Obligations	$ 394,600,000.0

[1] Please refer to Note 1 of these Notes to Condensed Consolidated Financial Statements for discussion regarding the nature of accrued customer programs and their accounting treatment related to our revenue recognition policies and estimates

[2] Please refer to Note 13 of these Notes to Condensed Consolidated Financial Statements for discussion regarding the warranty accrual.

[3] Please refer to Note 14 of these Notes to Condensed Consolidated Financial Statements for discussion regarding the 3dfx litigation.