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Carrying value as of the balance sheet date of obligations incurred through that date and payable for employer-related costs not otherwise specified in the taxonomy. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Adjustment to remove noncash portion of restructuring costs and include cash payments when calculating cash flows from operations using the indirect method.

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Price of a single share of a number of saleable stocks of a company.

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Note 17. Equity Incentive Plans and Employee Benefits (Detail)	2 Months Ended	12 Months Ended														12 Months Ended				12 Months Ended
	Mar. 31, 2013 USD ($)	Feb. 02, 2013 USD ($)	Jan. 28, 2012 USD ($)	Jan. 29, 2011 USD ($)	Feb. 02, 2013 Restricted Stock [Member] Minimum [Member]	Feb. 02, 2013 Restricted Stock [Member] Maximum [Member]	Feb. 02, 2013 Restricted Stock [Member] USD ($)	Feb. 02, 2013 Restricted Stock Units (RSUs) [Member] USD ($)	Feb. 02, 2013 Non-Employees [Member] USD ($)	Jan. 28, 2012 Non-Employees [Member] USD ($)	Jan. 29, 2011 Non-Employees [Member] USD ($)	Feb. 02, 2013 2009 Incentive Plan [Member]	Jul. 30, 2011 2009 Incentive Plan [Member]	Jul. 30, 2009 2009 Incentive Plan [Member]	Jul. 30, 2011 2001 Plan [Member]	Feb. 02, 2013 2010 Purchase Plan [Member] USD ($)	Jan. 28, 2012 2010 Purchase Plan [Member] USD ($)	Jan. 29, 2011 2010 Purchase Plan [Member] USD ($)	Jul. 31, 2010 2010 Purchase Plan [Member]	Feb. 02, 2013 401(k) Tax Deferred Savings Plan [Member] Defined Contribution Pension [Member] USD ($)	Jan. 28, 2012 401(k) Tax Deferred Savings Plan [Member] Defined Contribution Pension [Member] USD ($)	Jan. 29, 2011 401(k) Tax Deferred Savings Plan [Member] Defined Contribution Pension [Member] USD ($)	Feb. 02, 2013 Endowment Insurance Pension Plan [Member] USD ($)	Feb. 02, 2013 Endowment Insurance Pension Plan [Member] CNY	Feb. 02, 2013 Group Registered Retirement Savings Plan [Member] CAD	Feb. 02, 2013 Retirement Pension Plan [Member] USD ($)	Jan. 28, 2012 Retirement Pension Plan [Member] USD ($)	Jan. 29, 2011 Retirement Pension Plan [Member] USD ($)	Feb. 02, 2013 Taiwan [Member] USD ($)	Jan. 28, 2012 Taiwan [Member] USD ($)	Jan. 29, 2011 Taiwan [Member] USD ($)	Feb. 02, 2013 Netherlands [Member] USD ($)	Feb. 02, 2013 Germany [Member] USD ($)	Feb. 02, 2013 Severance Plan [Member] USD ($)
Common Stock, Capital Shares Reserved for Future Issuance (in Shares)													2,000,000	2,900,000		2,500,000			2,500,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in Shares)		2,101,158										648,106			1,000,000
Share Price (in Dollars per share)		$ 5.27														$ 4.72	$ 5.68	$ 8.43
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value		$ 500,000	$ 1,600,000	$ 3,100,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value		7,200,000	10,500,000	12,100,000
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Stock Options		9,700,000
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition		2 years 146 days					2 years 255 days	2 years 328 days
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period					1 year	5 years		4 years
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized							1,300,000	3,500,000
Share to RSU Reduction Ratio								1.30%
Maximum Percentage of Base Salaries Deducted to Purchase Common Stock Less Than Fair Market Value																15.00%
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent																85.00%
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Number of Shares Per Employee (in Shares)																1,500
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period (in Shares)																887,723	682,451	334,192
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares)		205,000	532,800	1,161,350												1,570,174
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate										54.00%
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Remaining Contractual Term		4 years 328 days								5 years
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate										1.13%
Share-based Compensation		10,595,000	12,025,000	12,577,000					0	2,000	18,000
Defined Contribution Plan, Cost Recognized																				800,000	800,000	700,000	1,100,000						100,000	100,000	100,000	200,000	0
Defined Contribution Plan, Maximum Annual Contribution Per Employee, Amount (in Dollars)																								12,993	22,970
Defined Contribution Plan, Employer Matching Contribution, Percent																							22.00%	22.00%	2.50%	3.00%			6.00%			22.00%	4.00%
Defined Contribution Plan, Maximum Annual Contribution Per Employee, Percent																							8.00%	8.00%								1.70%
Defined Contribution Plan, Maximum Annual Contribution Per Employee, Amount (in Yuan Renminbi)																								12,993	22,970
Defined Contribution Plan, Employer Discretionary Contribution Amount																										200,000	200,000	100,000
Supplemental Unemployment Benefits, Severance Benefits																																		1,200,000
Other Employee Related Liabilities, Current																																		1,100,000
Employee Termination Costs		2,200,000
Restructuring Costs	$ 300,000	$ 2,111,000