Commitment and Contingencies (Aribitral Award for the Taking of the Company's Venezuelan Operations) - Additional Information (Detail) - Compensatory Purposes - VENEZUELA - USD ($) $ in Millions		9 Months Ended
	Mar. 13, 2015	Dec. 31, 2015
Commitments and Contingencies Disclosure [Line Items]
Compensation awarded to the subsidiaries		$ 65.0
Compensation awarded to the subsidiaries, annual compound interest rate	4.50%
Principal Investments
Commitments and Contingencies Disclosure [Line Items]
Compensation awarded to the subsidiaries	$ 46.4
Net Interest Settlements
Commitments and Contingencies Disclosure [Line Items]
Compensation awarded to the subsidiaries		$ 16.1
Legal And Other Settlements
Commitments and Contingencies Disclosure [Line Items]
Compensation awarded to the subsidiaries	$ 2.5