Acquisitions - Additional Information (Detail) $ in Millions	6 Months Ended
Jun. 30, 2015 Entity	Jul. 31, 2015 USD ($)
Business Acquisition [Line Items]
Number of other tuck-in acquisitions \| Entity	2
Subsequent Event \| Waddington Holdings Inc
Business Acquisition [Line Items]
Total value of the transaction of businesses acquisition		$ 1,350

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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