Summary of Significant Accounting Policies - Estimated Useful Lives (Detail)	12 Months Ended
	Dec. 31, 2016
Minimum [Member] | Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	10 years
Minimum [Member] | Buildings [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	5 years
Minimum [Member] | Rides, Attractions and Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	3 years
Minimum [Member] | Animals [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	1 year
Maximum [Member] | Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	40 years
Maximum [Member] | Buildings [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	40 years
Maximum [Member] | Rides, Attractions and Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	20 years
Maximum [Member] | Animals [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	50 years