Schedule I - Description of SeaWorld Entertainment, Inc. - Additional Information (Detail)	Dec. 31, 2017 Business	May 08, 2017	Oct. 02, 2009 Partnership
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Number of limited partnerships which owned the company | Partnership			10
Number of theme parks owned and operated | Business	12
Stock Purchase Agreement [Member] | ZHG Group [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Percentage of common stock outstanding		21.00%