Consolidated Condensed Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Nov. 24, 2012	Nov. 26, 2011
Cash flows from operating activities:
Net income	$ 80,279	$ 80,350
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	57,175	49,135
Amortization of deferred gain	(2,857)	0
Deferred income taxes	17,919	28,595
Excess tax benefits from stock-based compensation	(12,654)	(10,572)
Stock-based compensation	4,413	5,423
Loss on disposition of property and equipment, including impairment	2,860	7,173
Changes in operating assets and liabilities:
Merchandise inventories	(165,906)	(146,917)
Prepayments and other current assets	(27,472)	(5,953)
Other assets	(2,073)	616
Accounts payable and accrued liabilities	10,003	(54,325)
Income taxes	761	5,924
Other liabilities	9,784	(6,172)
Net cash provided by (used in) operating activities, total	(27,768)	(46,723)
Cash flows from investing activities:
Purchases of restricted and unrestricted investment securities	(10,720)	(12,182)
Sales of restricted and unrestricted investment securities	7,542	68,592
Change in restricted cash	46,009	0
Net proceeds from sale-leaseback	1,132	0
Capital expenditures	(196,386)	(130,862)
Proceeds from dispositions of property and equipment	162	96
Net cash provided by (used in) investing activities, total	(152,261)	(74,356)
Cash flows from financing activities:
Revolving credit facility borrowings	598,000	173,000
Repayment of revolving credit facility borrowings	(404,000)	(98,000)
Repayment of long-term debt	(16,200)	(16,200)
Repurchases of common stock	(24,980)	(27,435)
Change in cash overdrafts	43,138	41,819
Proceeds from exercise of employee stock options	15,578	20,752
Excess tax benefits from stock-based compensation	12,654	10,572
Payment of dividends	(24,227)	(21,128)
Net cash provided by (used in) financing activities, total	199,963	83,380
Net change in cash and cash equivalents	19,934	(37,699)
Cash and cash equivalents at beginning of year	92,333	141,405
Cash and cash equivalents at end of year	$ 112,267	$ 103,706