Consolidated Statements of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands		Total	Class B Common Stock	Common Stock	Common Stock Class B Common Stock	Common Stock Common Stock	Capital Surplus	Retained Earnings	Retained Earnings Class B Common Stock	Retained Earnings Common Stock	Accumulated Other Comprehensive Loss
Balance at beginning of period at Aug. 26, 2017		$ 1,453,192			$ 482	$ 1,545	$ 86,245	$ 1,386,438			$ (21,518)
Balance at beginning of period (in shares) at Aug. 26, 2017			4,815	15,453
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		34,206						34,206
Change in fair value of derivatives		86									86
Foreign currency translation		(2,013)									(2,013)
Dividends declared Common Stock			$ (144)	$ (582)					$ (144)	$ (582)
Share-based compensation, net	[1]	596					1,334	(738)
Share-based awards exercised, net	[2]	267				2	265
Share-based awards exercised, net (in shares)	[2]			16
Balance at end of period at Nov. 25, 2017		1,485,608			482	1,547	87,844	1,419,180			(23,445)
Balance at end of period (in shares) at Nov. 25, 2017			4,815	15,469
Balance at beginning of period at Aug. 26, 2017		1,453,192			482	1,545	86,245	1,386,438			(21,518)
Balance at beginning of period (in shares) at Aug. 26, 2017			4,815	15,453
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		128,943
Pension benefit liabilities, net		1,192
Foreign currency translation		(4,694)
Balance at end of period at May. 26, 2018		1,429,421			371	1,543	82,408	1,372,358			(27,259)
Balance at end of period (in shares) at May. 26, 2018			3,710	15,426
Balance at beginning of period at Nov. 25, 2017		1,485,608			482	1,547	87,844	1,419,180			(23,445)
Balance at beginning of period (in shares) at Nov. 25, 2017			4,815	15,469
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		58,378						58,378
Pension benefit liabilities, net	[3]							1,192			(1,192)
Change in fair value of derivatives		(13)									(13)
Foreign currency translation		1,250									1,250
Dividends declared Common Stock			$ (140)	$ (580)					(140)	(580)
Share-based compensation, net	[1]	(265)					(265)
Share-based awards exercised, net	[2]	163				2	161
Share-based awards exercised, net (in shares)	[2]			23
Balance at end of period at Feb. 24, 2018		1,544,401			482	1,549	87,740	1,478,030			(23,400)
Balance at end of period (in shares) at Feb. 24, 2018			4,815	15,492
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		36,359						36,359
Change in fair value of derivatives		72									72
Foreign currency translation		(3,931)									(3,931)
Dividends declared Common Stock			$ (334)	$ (1,735)					(334)	(1,735)
Share-based compensation, net	[1]	571					571
Share-based awards exercised, net	[2]	30				1	29
Share-based awards exercised, net (in shares)	[2]			7
Repurchase of common stock		(146,012)			(111)	(7)	(5,932)	(139,962)
Repurchase of common stock (in shares)			(1,105)	(73)
Balance at end of period at May. 26, 2018		1,429,421			371	1,543	82,408	1,372,358			(27,259)
Balance at end of period (in shares) at May. 26, 2018			3,710	15,426
Balance at beginning of period at Aug. 25, 2018		1,464,967			371	1,543	82,973	1,405,239			(25,159)
Balance at beginning of period (in shares) at Aug. 25, 2018			3,710	15,431
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		38,320						38,320
Change in fair value of derivatives		88									88
Foreign currency translation		(2,282)									(2,282)
Dividends declared Common Stock			$ (334)	$ (1,736)					(334)	(1,736)
Share-based compensation, net	[1]	1,042					1,042
Share-based awards exercised, net (in shares)	[2]			2
Balance at end of period at Nov. 24, 2018		1,539,498			371	1,543	84,015	1,480,922			(27,353)
Balance at end of period (in shares) at Nov. 24, 2018			3,710	15,433
Balance at beginning of period at Aug. 25, 2018		1,464,967			371	1,543	82,973	1,405,239			(25,159)
Balance at beginning of period (in shares) at Aug. 25, 2018			3,710	15,431
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		133,146
Foreign currency translation		(3,513)
Balance at end of period at May. 25, 2019		1,609,696			371	1,531	84,836	1,551,475			(28,517)
Balance at end of period (in shares) at May. 25, 2019			3,710	15,307
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of change in accounting principle, net	[4]	39,433						39,433
Balance at beginning of period at Nov. 24, 2018		1,539,498			371	1,543	84,015	1,480,922			(27,353)
Balance at beginning of period (in shares) at Nov. 24, 2018			3,710	15,433
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		47,606						47,606
Change in fair value of derivatives		(71)									(71)
Foreign currency translation		1,418									1,418
Dividends declared Common Stock			$ (334)	$ (1,732)					(334)	(1,732)
Share-based compensation, net	[1]	659					659
Share-based awards exercised, net	[2]	26				1	25
Share-based awards exercised, net (in shares)	[2]			12
Repurchase of common stock		(6,280)				(4)	(245)	(6,031)
Repurchase of common stock (in shares)				(45)
Balance at end of period at Feb. 23, 2019		1,580,790			371	1,540	84,454	1,520,431			(26,006)
Balance at end of period (in shares) at Feb. 23, 2019			3,710	15,400
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		47,220						47,220
Change in fair value of derivatives		138									138
Foreign currency translation		(2,649)									(2,649)
Dividends declared Common Stock			$ (334)	$ (1,720)					$ (334)	$ (1,720)
Share-based compensation, net	[1]	902					902
Share-based awards exercised, net	[2]	22				1	21
Share-based awards exercised, net (in shares)	[2]			7
Repurchase of common stock		(14,673)				(10)	(541)	(14,122)
Repurchase of common stock (in shares)				(100)
Balance at end of period at May. 25, 2019		$ 1,609,696			$ 371	$ 1,531	$ 84,836	$ 1,551,475			$ (28,517)
Balance at end of period (in shares) at May. 25, 2019			3,710	15,307

[1] These amounts are shown net of any shares withheld by the Company to satisfy certain tax withholdings obligations in connection with the vesting of certain shares of restricted stock or restricted stock units.

[2] These amounts are shown net of the effect of income taxes.

[3] These amounts include the impact of the adoption of ASU 2018-02 in the second quarter of fiscal 2018. See Note 15, “Accumulated Other Comprehensive Loss” in our Consolidated Financial Statements for further details.

[4] These amounts consist of the cumulative impact of the adoption of the new revenue recognition accounting guidance. See Note 2, “Recent Accounting Pronouncements” in the Company’s Consolidated Financial Statements.