Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Feb. 27, 2021	Feb. 29, 2020
Cash flows from operating activities:
Net income	$ 74,481	$ 82,922
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	52,595	51,430
Amortization of deferred financing costs	56	56
Share-based compensation	3,266	3,227
Accretion on environmental contingencies	224	269
Accretion on asset retirement obligations	492	463
Deferred income taxes	847	727
Other	19	16
Changes in assets and liabilities, net of acquisitions:
Receivables, less reserves	(12,511)	(4,867)
Inventories	(4,287)	6,125
Rental merchandise in service	(338)	6,839
Prepaid expenses and other current assets and Other assets	2,267	2,170
Accounts payable	(1,923)	(5,815)
Accrued liabilities	11,460	(1,752)
Prepaid and accrued income taxes	1,368	(4,941)
Net cash provided by operating activities	128,016	136,869
Cash flows from investing activities:
Acquisition of businesses, net of cash acquired	(7,018)	(41,021)
Capital expenditures, including capitalization of software costs	(66,855)	(62,271)
Proceeds from sale of assets	281	236
Net cash used in investing activities	(73,592)	(103,056)
Cash flows from financing activities:
Proceeds from exercise of share-based awards	3	75
Taxes withheld and paid related to net share settlement of equity awards	(2,643)	(3,281)
Repurchase of Common Stock	(9,534)	(14,203)
Payment of cash dividends	(9,069)	(6,609)
Net cash used in financing activities	(21,243)	(24,018)
Effect of exchange rate changes	1,544	187
Net increase in cash, cash equivalents and short-term investments	34,725	9,982
Cash, cash equivalents and short-term investments at beginning of period	474,838	385,341
Cash, cash equivalents and short-term investments at end of period	509,563	395,323
Supplemental disclosure of cash flow information:
Non-cash capital expenditures	$ 3,677	$ 9,004