Accumulated Other Comprehensive Loss - Amounts Reclassified from Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands		3 Months Ended								12 Months Ended
		Aug. 31, 2019	May 25, 2019	Feb. 23, 2019	Nov. 24, 2018	Aug. 25, 2018	May 26, 2018	Feb. 24, 2018	Nov. 25, 2017	Aug. 31, 2019	Aug. 25, 2018	Aug. 26, 2017
Accumulated Other Comprehensive Income Loss [Line Items]
Selling and administrative expenses	[1]									$ 334,840	$ 360,727	$ 342,407
Provision for income taxes		$ 14,882	$ 14,480	$ 15,789	$ 13,639	$ 7,901	$ 11,433	$ (14,810)	$ 18,827	58,790	23,351	44,927
Net income		$ 45,988	$ 47,220	$ 47,606	$ 38,320	$ 34,952	$ 36,359	$ 58,378	$ 34,206	179,134	163,895	$ 70,196
Reclassification out of Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income Loss [Line Items]
Net income										492	1,610
Actuarial Losses | Reclassification out of Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income Loss [Line Items]
Selling and administrative expenses	[2]									645	464
Pension Benefit Liabilities, Net | Reclassification out of Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income Loss [Line Items]
Provision for income taxes										0	1,192
Net income										645	1,656
Derivative Financial Instruments | Reclassification out of Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income Loss [Line Items]
Net income										(153)	(46)
Derivative Financial Instruments | Forward Contracts | Reclassification out of Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income Loss [Line Items]
Forward contracts gain	[3]									$ (153)	$ (46)

[1] Exclusive of depreciation on the Company’s property, plant and equipment and amortization of its intangible assets.

[2] Amounts included in selling and administrative expenses in the accompanying Consolidated Statements of Income.

[3] Amounts included in revenues in the accompanying Consolidated Statements of Income.