Description of the Business and Basis of Presentation - Additional Information (Detail) $ in Thousands				3 Months Ended
	Apr. 01, 2021 Guest	Feb. 01, 2021 Guest	Oct. 29, 2020 Guest	Mar. 31, 2021 USD ($) Business Segment	Dec. 31, 2020 USD ($)	Aug. 31, 2020 Business
Business Description And Basis Of Presentation [Line Items]
Number of theme parks owned and operated | Business				12		12
Number of theme parks reopened | Business						10
Number of theme parks opened for a portion of the year | Business				7
Number of reportable segment | Segment				1
Long-term deferred revenue | $				$ 14,783	$ 13,428
ZHG Stock Purchase Agreement [Member]
Business Description And Basis Of Presentation [Line Items]
Type of Revenue [Extensible List]				Food, Merchandise and Other [Member]
Other Liabilities [Member]
Business Description And Basis Of Presentation [Line Items]
Long-term deferred revenue | $				$ 10,000
Middle East Project [Member]
Business Description And Basis Of Presentation [Line Items]
Deferred costs incurred under Middle East Project | $				$ 6,600	$ 5,900
Subsequent Event [Member]
Business Description And Basis Of Presentation [Line Items]
Revised attendance capacity restriction for guests | Guest	13,000
State of Virginia [Member]
Business Description And Basis Of Presentation [Line Items]
Initial attendance capacity restriction for guests			1,000
Revised attendance capacity restriction for guests | Guest		6,000	4,000