STOCK-BASED COMPENSATION (Details 2) (USD $)	9 Months Ended		1 Months Ended		9 Months Ended			9 Months Ended		9 Months Ended			1 Months Ended	9 Months Ended
	Oct. 29, 2011	Oct. 30, 2010	May 30, 2011 Board of Directors	Feb. 26, 2011 Board of Directors	Oct. 29, 2011 Board of Directors	Oct. 29, 2011 Stock Option Plans Years	Jan. 29, 2011 Stock Option Plans	Oct. 29, 2011 Deferred and Restricted Stock ("Deferred Awards") Years	Mar. 28, 2011 Deferred and Restricted Stock ("Deferred Awards")	Oct. 29, 2011 Deferred and Restricted Stock ("Deferred Awards") Chief Executive Officer and President	Oct. 29, 2011 Deferred and Restricted Stock ("Deferred Awards") Employee and new hire awards	Oct. 29, 2011 Performance awards Years	Mar. 31, 2011 Performance awards Chief Executive Officer and President	Oct. 29, 2011 Performance awards Chief Executive Officer and President	Oct. 29, 2011 Performance awards Employee and new hire awards
Stock-based compensation
Vesting period (in years)	1	3			1						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%
Percentage of the award vesting at first anniversary (as a percent)									50.00%
Percentage of the award vesting at second anniversary (as a percent)									25.00%
Percentage of the award vesting at third anniversary (as a percent)									25.00%
Deferred and Performance Awards
Unvested awards at the beginning of the period (in shares)								356,000				151,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			1,376	18,640				307,000		100,725	186,604	227,000		100,725	126,176
Vested (in shares)								(149,000)				(144,000)
Forfeited (in shares)								(74,000)				(18,000)
Unvested awards at the end of the period (in shares)								440,000				216,000
Weighted Average Grant Date Fair Value
Unvested awards at the beginning of the period (in dollars per share)								$ 36.91				$ 25.16
Granted (in shares)								$ 50.55				$ 51.45
Vested (in dollars per share)								$ 33.91				$ 24.10
Forfeited (in dollars per share)								$ 42.21				$ 52.70
Unvested awards at the end of the period (in dollars per share)								$ 46.55				$ 51.17
Target shares expected to be earned, weighted-average percentage (as a percent)												90.00%
Unrecognized costs and period of recognition
Unrecognized stock-based compensation expense (in dollars)								$ 15,900,000				$ 8,200,000
Weighted average period for recognition of unrecognized stock-based compensation expense (in years)								2.2				2.4
Number of Options
Options outstanding at the beginning of the period (in shares)						351,000
Exercised (in shares)						(133,000)
Forfeited (in shares)						(7,000)
Granted (in shares)						0
Options exercisable (in shares)						211,000
Weighted Average Exercise Price
Options outstanding at the beginning of the period (in dollars per share)						$ 33.93
Exercised (in dollars per share)						$ 33.71
Forfeited (in dollars per share)						$ 38.45
Options outstanding at the end of the period (in dollars per share)						$ 33.93
Granted (in dollars per share)						$ 0
Weighted Average Remaining Contractual Life (in years)
Options outstanding at the beginning of the period (in years)						4.3
Options outstanding at the end of the period (in years)						4.1
Aggregate Intrinsic Value
Options outstanding at the beginning of the period (in dollars)						3,311,000
Exercised (in dollars)						2,149,000
Forfeited (in dollars)						96,000
Options outstanding at the end of the period (in dollars)						$ 3,007,000
Changes in Unvested Stock Options
Unvested stock options (in shares)							16,000
Weighted Average Grant Date Fair Value, unvested stock options
Unvested stock options (in dollars per share)							$ 11.08