Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Aug. 26, 2017	Aug. 27, 2016
Income Tax Disclosure [Abstract]
Deferred taxes are not provided for temporary differences	$ 712,600	$ 572,000
Undistributed earnings of foreign subsidiaries	37,500	35,000
Deferred tax assets from net operating loss carryforwards	30,800	25,200
Future taxable income	$ 198,200	122,000
Expiration date of NOLs start year	2018
Expiration date of NOLs end year	2037
Deferred tax assets for income tax credit carryforwards	$ 17,200	25,700
Expiration date of tax credit carryforwards start year	2023
Expiration date of tax credit carryforwards end year	2027
Operating loss carryforwards expiration period description	Fiscal 2018 through 2037
Tax credit carryforwards expiration period description	Fiscal 2023 through 2027
Valuation allowances on deferred tax assets	$ 13,501	13,338
Unrecognized tax benefits , if recognized would reduce effective tax rate, amount	9,900	15,500
Accrued for payment of interest and penalties associated with unrecognized tax benefits	1,200	$ 2,800
Amount of unrecognized tax benefits that could be reduced over next twelve months	$ 2,300