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Long-Lived Assets (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 29, 2020
Dec. 31, 2020
Jun. 28, 2020
Wildwater Kingdom | Other Assets      
Property, Plant and Equipment [Line Items]      
Assets held-for-sale   $ 2.1 $ 9.0
Schlitterbahn      
Property, Plant and Equipment [Line Items]      
Impairment of long-lived assets $ 2.7