Supplemental Disclosures of Cash Flow Information - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		8 Months Ended
	Sep. 06, 2015	Mar. 22, 2015	Sep. 11, 2016	Sep. 06, 2015
Supplemental Cash Flow Elements [Abstract]
Accruals for capital expenditures related to non-cash investing activities			$ 0.5	$ 1.0
Extended lease agreement expiration date			2028-08
Increase in capital lease assets and liabilities related to non-cash financing activities	$ 0.6	$ 3.4