Share-Based Payments - Additional Information (Detail) (USD $)	12 Months Ended								72 Months Ended		1 Months Ended	72 Months Ended					12 Months Ended	43 Months Ended		1 Months Ended	12 Months Ended	43 Months Ended	12 Months Ended		12 Months Ended		12 Months Ended
	Feb. 02, 2013 CompensationPlan	Jan. 28, 2012	Jan. 29, 2011	Feb. 02, 2013 Time Based Restricted Stock Units	Feb. 02, 2013 Performance-Based Restricted Stock Units	Feb. 02, 2013 Performance-Based Restricted Stock Units Maximum	Feb. 02, 2013 Performance-Based Restricted Stock Units Minimum	Feb. 02, 2013 Stock Options	Jun. 15, 2005 1999 Stock Incentive Plan	Jun. 08, 1999 1999 Stock Incentive Plan	Jun. 08, 1999 1999 Stock Incentive Plan Director Quarterly	Jun. 15, 2005 1999 Stock Incentive Plan Group 1	Jun. 15, 2005 1999 Stock Incentive Plan Group 2	Jun. 15, 2005 1999 Stock Incentive Plan Group 3	Jun. 15, 2005 1999 Stock Incentive Plan Group 4	Jun. 15, 2005 1999 Stock Incentive Plan Restricted Stock	Feb. 02, 2013 2005 Stock Award and Incentive Plan	Jan. 31, 2009 2005 Stock Award and Incentive Plan	Jun. 15, 2005 2005 Stock Award and Incentive Plan	Jun. 15, 2005 2005 Stock Award and Incentive Plan Director Annual Maximum	Feb. 02, 2013 2005 Stock Award and Incentive Plan Restricted Stock	Jan. 31, 2009 2005 Stock Award and Incentive Plan Restricted Stock	Feb. 02, 2013 2005 Stock Award and Incentive Plan Restricted stock awards, restricted stock units or other full value stock awards	Jun. 15, 2005 2005 Stock Award and Incentive Plan Restricted stock awards, restricted stock units or other full value stock awards	Feb. 02, 2013 2005 Stock Award and Incentive Plan Stock options, SAR, dividend equivalents, performance awards or other non-full value stock awards	Jun. 15, 2005 2005 Stock Award and Incentive Plan Stock options, SAR, dividend equivalents, performance awards or other non-full value stock awards	Feb. 02, 2013 2005 Stock Award and Incentive Plan Employee Stock Option	Feb. 02, 2013 2005 Stock Award and Incentive Plan Employee Stock Option Group 1	Feb. 02, 2013 2005 Stock Award and Incentive Plan Employee Stock Option Group 2	Feb. 02, 2013 2005 Stock Award and Incentive Plan Performance Based Restricted Stock Unit	Feb. 02, 2013 2005 Stock Award and Incentive Plan Time-based restricted stock awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 66,300,000	$ 11,700,000	$ 24,900,000
Share-based compensation expense, net of tax	40,900,000	7,200,000	15,400,000
Number of share-based compensation plans	2
Authorized shares under the plan prior to amendment										18,000,000									18,400,000					6,400,000		12,000,000
Authorized shares under the plan									33,000,000
Maximum number of options that may be granted to any individual									9,000,000														4,000,000		6,000,000
Stock options granted	1,666,000								33,200,000		1,875						16,600,000	9,100,000		20,000
Shares granted				1,497,000	888,000											6,700,000					800,000	2,900,000
Shares cancelled				821,000	564,000											9,700,000						2,900,000
Percentage of shares vested												33.00%	34.00%	23.00%													2.00%	97.00%	1.00%	56.00%	44.00%
Vesting period				3 years	3 years							8 years	3 years	5 years	1 year												1 year	3 years	5 years		3 years
Expiration period									10 years																			10 years	7 years
Shares available for all equity grants	22,900,000																	31,900,000
Shares of common stock granted																	200,000	200,000
Weighted-average grant date fair value of stock options granted	$ 3.72	$ 4.73	$ 5.19
Aggregate intrinsic value of options exercised	57,400,000	2,800,000	11,700,000
Cash received from the exercise of stock options	76,401,000	5,098,000	7,272,000
Tax benefit realized from share-based payments	14,050,000	356,000	15,648,000
Unrecognized compensation expense				$ 5,900,000	$ 11,300,000			$ 2,000,000
Unrecognized compensation expense, weighted average period				9 months 18 days		3 years	1 year	22 months