Equity - Additional Information (Detail) - USD ($) $ in Millions	Oct. 03, 2015	Nov. 21, 2013
Equity, Class of Treasury Stock [Line Items]
Stock repurchase authorized amount		$ 30.0
Stock repurchase remained available for future stock repurchase	$ 9.1

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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