CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Feb. 28, 2012	Mar. 01, 2011	Feb. 28, 2012	Mar. 01, 2011
Revenue:
Restaurant sales and operating revenue	$ 323,464	$ 317,158	$ 958,521	$ 906,745
Franchise revenue	1,363	1,905	4,104	5,455
Total revenue	324,827	319,063	962,625	912,200
Operating costs and expenses:
Cost of merchandise	93,084	92,780	282,221	262,410
Payroll and related costs	111,881	106,205	332,645	306,170
Other restaurant operating costs	63,299	65,711	197,383	186,512
Depreciation	16,239	15,597	48,939	46,338
Selling, general and administrative, net	22,925	18,449	73,087	62,229
Closures and impairments	12,317	783	13,415	2,869
Equity in losses of unconsolidated franchises		879		649
Interest expense, net	3,850	3,114	11,793	8,133
Total operating and costs and expenses	323,595	303,518	959,483	875,310
Income before income taxes	1,232	15,545	3,142	36,890
(Benefit)/provision for income taxes	(3,304)	(455)	(2,486)	3,928
Net income	$ 4,536	$ 16,000	$ 5,628	$ 32,962
Earnings per share:
Basic (in dollars per share)	$ 0.07	$ 0.25	$ 0.09	$ 0.52
Diluted (in dollars per share)	$ 0.07	$ 0.25	$ 0.09	$ 0.51
Weighted average shares:
Basic (in shares)	62,643	64,177	62,999	63,956
Diluted (in shares)	63,053	65,237	63,503	64,849
Cash dividends declared per share (in dollars per share)	$ 0	$ 0	$ 0	$ 0