(LOSS)/EARNINGS PER SHARE AND STOCK REPURCHASES (Details) (USD $)	3 Months Ended				6 Months Ended
	Nov. 29, 2011		Aug. 30, 2011	Nov. 30, 2010	Nov. 29, 2011	Nov. 30, 2010
(LOSS)/EARNINGS PER SHARE AND STOCK REPURCHASES [Abstract]
Net (loss)/income	$ (2,001,000)			$ 4,565,000	$ 1,092,000	$ 16,962,000
Weighted-average common shares outstanding (in shares)	62,598,000			64,011,000	63,177,000	63,846,000
Dilutive effect of stock options and restricted stock (in shares)	0			887,000	552,000	809,000
Weighted average common and dilutive potential common shares outstanding (in shares)	62,598,000			64,898,000	63,729,000	64,655,000
Basic (loss)/earnings per share (in dollars per share)	$ (0.03)			$ 0.07	$ 0.02	$ 0.27
Diluted (loss)/earnings per share (in dollars per share)	$ (0.03)			$ 0.07	$ 0.02	$ 0.26
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total (in shares)	4,547,000			3,727,000	2,973,000	3,517,000
Repurchased common stock (in shares)	0		2,000,000
Repurchased common stock			$ 18,400,000
Remaining shares authorized repurchased (in shares)	5,900,000				5,900,000
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total (in shares)	3,404,000	[1]		3,284,000	2,074,000	3,052,000
Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total (in shares)	1,143,000	[1]		443,000	899,000	465,000

[1] Due to a net loss for the 13 weeks ended November 29, 2011, all then outstanding share-based awards were excluded from the computation of diluted loss per share.