Recent Accounting Pronouncements - Schedule of Impact of New Accounting Pronouncements on Consolidated Statement of Income (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
		Nov. 24, 2018	Nov. 25, 2017
Operating expenses:
Selling and administrative expenses	[1]	$ 85,959	$ 87,510
Total operating expenses		388,124	363,867
Operating income		50,426	51,911
Income before income taxes		51,959	53,033
Provision for income taxes		13,639	18,827
Net income		$ 38,320	$ 34,206
As reported - Diluted (in dollars per share)		$ 1.99	$ 1.67
Under Historical Guidance
Operating expenses:
Selling and administrative expenses		$ 86,875
Total operating expenses		389,040
Operating income		49,510
Income before income taxes		51,043
Provision for income taxes		13,399
Net income		$ 37,644
As reported - Diluted (in dollars per share)		$ 1.95
Impact of Adopting New Revenue Standard | Accounting Standards Update 2014-09
Operating expenses:
Selling and administrative expenses		$ (916)
Total operating expenses		(916)
Operating income		916
Income before income taxes		916
Provision for income taxes		240
Net income		$ 676
As reported - Diluted (in dollars per share)		$ 0.04

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