Non-controlling Interests - Additional Information (Detail) - Habit Restaurants, LLC [Member] - USD ($) $ in Millions	3 Months Ended
Mar. 27, 2018	Mar. 28, 2017	Apr. 30, 2015	Nov. 25, 2014
Noncontrolling Interest [Line Items]
Non-controlling interests ownership percentage	21.40%	22.20%	47.10%	65.50%
Non-controlling interests recorded in equity	$ 0.4

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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