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Commitment and Contingencies (Arbitral Award for the Taking of the Company's Venezuelan Operations) - Additional Information (Detail) - Compensatory Purposes - VENEZUELA $ in Millions	3 Months Ended
	Mar. 31, 2018 USD ($) Subsidiary
Commitments and Contingencies Disclosure [Line Items]
Number of subsidiaries awarded grant | Subsidiary	2
Compensation awarded to the claimants	$ 56.7
Litigation settlement accrual interest	$ 0.6

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Commitments and Contingencies Disclosure [Line Items]

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Number of subsidiaries awarded grant.

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Interest expense (income) directly attributable to an award in settlement of litigation.

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