STOCK-BASED COMPENSATION (Details 2) (USD $)	3 Months Ended
	Apr. 28, 2012	Apr. 30, 2011	Apr. 27, 2012 Board of Directors	Apr. 28, 2012 Stock Option Plans Years	Apr. 28, 2012 Deferred and Restricted Stock ("Deferred Awards") Years	Apr. 28, 2012 Deferred and Restricted Stock ("Deferred Awards") Chief Executive Officer and President	Apr. 28, 2012 Deferred and Restricted Stock ("Deferred Awards") Employee and new hire awards	Apr. 28, 2012 Performance awards Years	Apr. 27, 2012 Performance awards Chief Executive Officer and President	Apr. 28, 2012 Performance awards Chief Executive Officer and President	Apr. 28, 2012 Performance awards Employee and new hire awards
Stock-based compensation
Vesting period (in years)	1	3					3
Minimum percentage of Target Shares which can be earned by the participants (as a percent)									50.00%		50.00%
Maximum percentage of Target Shares that can be earned by the participants (as a percent)	200.00%								200.00%		200.00%
Percentage of Target Shares paid out if final operating income below threshold (as a percent)								100.00%	0.00%		0.00%
Deferred and Performance Awards
Unvested awards at the beginning of the period (in shares)					406,000			6,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			16,032		435,000	196,768	221,830	215,000		100,180	114,560
Vested (in shares)					(99,000)			(1,000)
Forfeited (in shares)					(25,000)			(1,000)
Unvested awards at the end of the period (in shares)					717,000			219,000
Weighted Average Grant Date Fair Value
Unvested awards at the beginning of the period (in dollars per share)					$ 47.96			$ 46.08
Granted (in shares)					$ 48.68			$ 48.72
Vested (in dollars per share)					$ 49.29			$ 45.38
Forfeited (in dollars per share)					$ 49.21			$ 47.30
Unvested awards at the end of the period (in dollars per share)					$ 48.17			$ 48.67
Target shares expected to be earned, weighted-average percentage (as a percent)								100.00%
Unrecognized costs and period of recognition
Unrecognized stock-based compensation expense (in dollars)					$ 31,600,000			$ 10,100,000
Weighted average period for recognition of unrecognized stock-based compensation expense (in years)					2.6			2.5
Number of Options
Options outstanding at the beginning of the period (in shares)				154,000
Exercised (in shares)				(1,000)
Forfeited (in shares)				(1,000)
Granted (in shares)				0
Options exercisable (in shares)				152,000
Weighted Average Exercise Price
Options outstanding at the beginning of the period (in dollars per share)				$ 30.98
Exercised (in dollars per share)				$ 31.94
Forfeited (in dollars per share)				$ 24.60
Options outstanding at the end of the period (in dollars per share)				$ 31.00
Granted (in dollars per share)				$ 0
Weighted Average Remaining Contractual Life (in years)
Options outstanding at the beginning of the period (in years)				4.2
Options outstanding at the end of the period (in years)				4.0
Aggregate Intrinsic Value
Options outstanding at the beginning of the period (in dollars)				2,943,000
Exercised (in dollars)				29,000
Forfeited (in dollars)				13,000
Options outstanding at the end of the period (in dollars)				$ 2,397,000