Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Feb. 28, 2015		Mar. 01, 2014
Net income	$ 62,859		$ 60,109
Depreciation	32,495		30,465
Amortization of intangible assets	4,334		4,663
Amortization of deferred financing costs	104		104
Share-based compensation	3,369		3,388
Accretion on environmental contingencies	302		358
Accretion on asset retirement obligations	316		362
Deferred income taxes	7,040		(190)
Changes in assets and liabilities, net of acquisitions:
Receivables	(11,048)		(9,545)
Inventories	(6,578)		5,173
Rental merchandise in service	718		(4,960)
Prepaid expenses and other current assets	(7,187)		(1,504)
Accounts payable	(1,384)		4,340
Accrued liabilities	11,605		6,248
Prepaid and accrued income taxes	10,092		10,094
Net cash provided by operating activities	107,037		109,105
Acquisition of businesses, net of cash acquired	(15,086)		(681)
Capital expenditures	(45,542)		(44,087)
Other	(202)		401
Net cash used in investing activities	(60,830)		(44,367)
Proceeds from loans payable and long-term debt	4,937		4,927
Payments on loans payable and long-term debt	(6,887)		(107,620)
Proceeds from exercise of Common Stock options, including excess tax benefits	4,975		2,005
Payment of cash dividends	(1,433)		(1,428)
Net cash provided by (used in) financing activities	1,592		(102,116)
Effect of exchange rate changes on cash	(8,107)		(2,859)
Net increase (decrease) in cash and cash equivalents	39,692		(40,237)
Cash and cash equivalents at beginning of period	191,769	[1]	197,479
Cash and cash equivalents at end of period	$ 231,461		$ 157,242

[1] Derived from audited financial statements