Goodwill and Intangible Assets, Net - Schedule of Intangible Assets, Net (Parenthetical) (Detail) $ in Millions	6 Months Ended
Dec. 31, 2016 USD ($)
AMX [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets related to the acquisition	$ 55.7
Martin Professional A/S [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets related to the acquisition	$ 18.5

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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