Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Aug. 28, 2021	Aug. 29, 2020	Aug. 31, 2019
Cash flows from operating activities:
Net income	$ 151,111	$ 135,770	$ 179,134
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	105,955	104,697	103,333
Amortization of deferred financing costs	147	112	112
Forgiveness of a liability			(7,346)
Share-based compensation	7,011	5,999	5,761
Accretion on environmental contingencies	448	537	755
Accretion on asset retirement obligations	985	929	865
Other	391	2,524	(283)
Deferred income taxes	300	(12,152)	8,896
Changes in assets and liabilities, net of acquisitions:
Receivables, less reserves	(16,685)	14,589	(3,189)
Inventories	(37,213)	(5,066)	(10,736)
Rental merchandise in service	(26,323)	32,262	(10,324)
Prepaid expenses and other current assets and Other assets	5,015	840	(8,011)
Accounts payable	15,136	(10,702)	3,365
Accrued liabilities	16,446	19,866	(1,027)
Prepaid and accrued income taxes	(10,422)	(3,521)	20,837
Net cash provided by operating activities	212,302	286,684	282,142
Cash flows from investing activities:
Acquisition of businesses, net of cash acquired	(8,443)	(41,221)	(4,919)
Capital expenditures, including capitalization of software costs	(133,639)	(116,717)	(119,815)
Proceeds from sale of assets	617	322	405
Net cash used in investing activities	(141,465)	(157,616)	(124,329)
Cash flows from financing activities:
Payment of deferred financing costs	(822)
Proceeds from exercise of share-based awards	4	73	51
Taxes withheld and paid related to net share settlement of equity awards	(4,068)	(3,731)	(2,767)
Repurchase of Common Stock	(11,222)	(21,745)	(30,515)
Payment of cash dividends	(18,147)	(15,700)	(8,260)
Net cash used in financing activities	(34,255)	(41,103)	(41,491)
Effect of exchange rate changes	1,448	1,532	(1,493)
Net increase in cash, cash equivalents and short-term investments	38,030	89,497	114,829
Cash, cash equivalents and short-term investments at beginning of period	474,838	385,341	270,512
Cash, cash equivalents and short-term investments at end of period	512,868	474,838	385,341
Supplemental disclosure of cash flow information:
Capital expenditures in accounts payable	6,705	6,637	9,928
Interest paid	685	637	750
Income taxes paid, net of refunds received	$ 56,393	$ 58,402	$ 28,354