Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Aug. 29, 2020	Aug. 31, 2019	Aug. 25, 2018
Cash flows from operating activities:
Net income	$ 135,770	$ 179,134	$ 163,895
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	104,697	103,333	96,662
Amortization of deferred financing costs	112	112	112
Forgiveness of a liability		(7,346)
Share-based compensation	5,999	5,761	4,638
Accretion on environmental contingencies	537	755	692
Accretion on asset retirement obligations	929	865	935
Other	2,524	(283)	(232)
Deferred income taxes	(12,152)	8,896	(7,861)
Changes in assets and liabilities, net of acquisitions:
Receivables, less reserves	14,589	(3,189)	(12,420)
Inventories	(5,066)	(10,736)	(11,051)
Rental merchandise in service	32,262	(10,324)	(21,572)
Prepaid expenses and other current assets and Other assets	840	(8,011)	(5,643)
Accounts payable	(10,702)	3,365	4,573
Accrued liabilities	19,866	(1,027)	12,233
Prepaid and accrued income taxes	(3,521)	20,837	5,112
Net cash provided by operating activities	286,684	282,142	230,073
Cash flows from investing activities:
Acquisition of businesses, net of cash acquired	(41,221)	(4,919)	(42,665)
Capital expenditures, including capitalization of software costs	(116,717)	(119,815)	(112,747)
Proceeds from sale of assets	322	405	1,777
Other			(263)
Net cash used in investing activities	(157,616)	(124,329)	(153,898)
Cash flows from financing activities:
Proceeds from exercise of share-based awards	73	51	461
Taxes withheld and paid related to net share settlement of equity awards	(3,731)	(2,767)	(3,180)
Repurchase of Common Stock	(21,745)	(30,515)	(146,011)
Payment of cash dividends	(15,700)	(8,260)	(4,218)
Net cash used in financing activities	(41,103)	(41,491)	(152,948)
Effect of exchange rate changes	1,532	(1,493)	(2,467)
Net (decrease) increase in cash, cash equivalents and short-term investments	89,497	114,829	(79,240)
Cash, cash equivalents and short-term investments at beginning of period	385,341	270,512	349,752
Cash, cash equivalents and short-term investments at end of period	474,838	385,341	270,512
Supplemental disclosure of cash flow information:
Capital expenditures in accounts payable	6,637	9,928	15,050
Interest paid	637	750	538
Income taxes paid, net of refunds received	$ 58,402	$ 28,354	$ 28,355