Equity and Incentive Compensation Plans - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Oct. 27, 2012	Oct. 29, 2011	Oct. 27, 2012	Oct. 29, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	$ 4,800,000	$ 6,300,000	$ 12,324,000	$ 17,009,000
Weighted-average fair value of options granted (dollars per share)	$ 16.60		$ 12.44	$ 13.21
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost, unvested	8,000,000		8,000,000
Unrecognized compensation cost, unvested, remaining weighted-average vesting period (in years)	2.0		2.0
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost, unvested	10,600,000		10,600,000
Unrecognized compensation cost, unvested, remaining weighted-average vesting period (in years)	1.7		1.7
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost, unvested	$ 1,700,000		$ 1,700,000
Unrecognized compensation cost, unvested, remaining weighted-average vesting period (in years)	0.4		0.4