Equity (Details) $ in Thousands			3 Months Ended
		Oct. 31, 2014	Aug. 29, 2015 USD ($)	Aug. 30, 2014 USD ($)
Schedule of Stockholders Equity [Line Items]
Balance			$ 704,562
Dividends	[1]		(47,682)
Other comprehensive income, net of tax			(180)	$ (10)
Distribution to noncontrolling interest partners			(10)
Restricted stock compensation expense			752
Net income			144,090	$ 28,185
Balance			$ 801,532
Percentage of net income used to compute accrued dividends			33.33%
Stock split ratio		2
Treasury Stock [Member]
Schedule of Stockholders Equity [Line Items]
Balance			$ (20,482)
Balance			(20,482)
Paid In Capital [Member]
Schedule of Stockholders Equity [Line Items]
Balance			43,304
Restricted stock compensation expense			752
Balance			44,056
Accumulated Other Comprehensive Loss [Member]
Schedule of Stockholders Equity [Line Items]
Balance			22
Other comprehensive income, net of tax			(180)
Balance			(158)
Retained Earnings [Member]
Schedule of Stockholders Equity [Line Items]
Balance			679,969
Dividends	[1]		(47,682)
Net income			143,023
Balance			775,310
Noncontrolling Interests [Member]
Schedule of Stockholders Equity [Line Items]
Balance			998
Distribution to noncontrolling interest partners			(10)
Net income			1,067
Balance			2,055
Common Stock [Member]
Schedule of Stockholders Equity [Line Items]
Balance			703
Balance			703
Class A Common Stock [Member]
Schedule of Stockholders Equity [Line Items]
Balance			48
Balance			$ 48

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