Stock-Based Compensation - Summary of Grants of Performance Based Restricted Stock Units Associated with Key Members of Management (Detail) - Performance Based Restricted Stock Units [Member] - Management [Member] - $ / shares		Jul. 13, 2017	Jul. 14, 2016	Jul. 15, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock Units Awarded	[1]	122,195	107,880	107,554
Price Per Share	[2]	$ 32.50	$ 28.00	$ 32.23
Vesting Period		3 years	3 years	3 years

[1] Amounts represent the maximum number of common stock shares that could be earned if certain performance targets are met as defined in the related restricted stock unit agreements.

[2] Price per share represents the closing price of our common stock on the date of grant.