Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Aug. 25, 2018	Aug. 26, 2017	Aug. 27, 2016
Cash flows from operating activities:
Net income	$ 163,895	$ 70,196	$ 125,026
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation	83,376	76,073	72,983
Amortization of intangible assets	13,286	12,806	8,629
Amortization of deferred financing costs	112	112	184
Gain on sale of assets	(232)	(567)	0
Share-based compensation	4,638	12,462	5,628
Accretion on environmental contingencies	692	600	669
Accretion on asset retirement obligations	935	853	826
Impairment charge	0	55,800	0
Deferred income taxes	(7,861)	955	9,899
Changes in assets and liabilities, net of acquisitions:
Receivables, less reserves	(12,420)	(22,232)	(3,949)
Inventories	(11,051)	1,865	1,467
Rental merchandise in service	(21,572)	(5,384)	3,945
Prepaid expenses and other current assets and Other assets	(5,643)	12,903	(38,443)
Accounts payable	4,573	9,594	49
Accrued liabilities	12,233	11,728	31,954
Prepaid and accrued income taxes	5,112	(19,490)	(11,231)
Net cash provided by operating activities	230,073	218,274	207,636
Cash flows from investing activities:
Acquisition of businesses, net of cash acquired	(42,665)	(125,457)	(16,583)
Capital expenditures	(112,747)	(108,554)	(98,235)
Proceeds from sale of assets	1,777	876	0
Other	(263)	98	149
Net cash used in investing activities	(153,898)	(233,037)	(114,669)
Cash flows from financing activities:
Payments on loans payable and long-term debt	0	0	(1,301)
Payment of deferred financing costs	0	0	(813)
Proceeds from exercise of share-based awards, including excess tax benefits in fiscal 2017 and 2016	461	3,102	5,313
Taxes withheld and paid related to net share settlement of equity awards	(3,180)	(2,386)	(5,965)
Repurchase of Common Stock	(146,011)	0	0
Payment of cash dividends	(4,218)	(2,898)	(2,878)
Net cash used in financing activities	(152,948)	(2,182)	(5,644)
Effect of exchange rate changes	(2,467)	2,902	(81)
Net (decrease) increase in cash, cash equivalents and short-term investments	(79,240)	(14,043)	87,242
Cash, cash equivalents and short-term investments at beginning of period	349,752	363,795	276,553
Cash, cash equivalents and short-term investments at end of period	270,512	349,752	363,795
Supplemental disclosure of cash flow information:
Non-cash capital expenditures	15,050	10,625	5,607
Interest paid	538	801	763
Income taxes paid, net of refunds received	$ 28,355	$ 62,165	$ 73,658