Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Nov. 25, 2017	Nov. 26, 2016
Cash flows from operating activities:
Net income	$ 34,206	$ 28,214
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation	19,540	18,500
Amortization of intangible assets	3,167	3,640
Amortization of deferred financing costs	28	28
Share-based compensation	1,114	2,015
Accretion on environmental contingencies	173	150
Accretion on asset retirement obligations	240	205
Deferred income taxes	2,031	(746)
Changes in assets and liabilities, net of acquisitions:
Receivables, less reserves	(12,879)	(13,112)
Inventories	(2,882)	7,526
Rental merchandise in service	(82)	152
Prepaid expenses and other current assets and Other assets	(4,901)	9,288
Accounts payable	(1,092)	(1,113)
Accrued liabilities	(7,456)	(8,837)
Prepaid and accrued income taxes	16,420	17,589
Net cash provided by operating activities	47,627	63,499
Cash flows from investing activities:
Acquisition of businesses, net of cash acquired	(2,671)	(120,391)
Capital expenditures	(19,033)	(18,233)
Other	318	281
Net cash used in investing activities	(21,386)	(138,343)
Cash flows from financing activities:
Proceeds from exercise of share-based awards, including excess tax benefits	267	929
Taxes withheld and paid related to net share settlement of equity awards	(522)	(566)
Payment of cash dividends	(726)	(724)
Net cash used in financing activities	(981)	(361)
Effect of exchange rate changes	(976)	(2,471)
Net increase (decrease) in cash, cash equivalents and short-term investments	24,284	(77,676)
Cash, cash equivalents and short-term investments at beginning of period	349,752	363,795
Cash, cash equivalents and short-term investments at end of period	$ 374,036	$ 286,119