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Property, Plant and Equipment, Net - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Property Plant And Equipment [Line Items]      
Depreciation, depletion and amortization $ 246,874 $ 211,242 $ 168,333
Capitalized interest cost 5,832 8,033 $ 1,792
Property, plant and equipment, net 3,156,000 3,402,770  
Bahamas And Canada      
Property Plant And Equipment [Line Items]      
Property, plant and equipment, net $ 58,937 $ 68,340