General - Basis of Presentation (Details) $ in Millions	6 Months Ended
	Jul. 03, 2022 USD ($) item	Jan. 02, 2022 USD ($)	Jul. 04, 2021 USD ($) item
Summary of Significant Accounting Policies
Number of parks owned or operated	27
Number of reporting units	1
Number of additional days			3
Number of additional guests			89,000
Percentage of park attendance and revenues typically occurring in second and third calendar quarters	75.00%
Valuation allowance | $	$ 108.4	$ 107.4	$ 129.4
Accrued interest and penalties, income taxes | $	0.0	0.0	0.0
Allowance for doubtful accounts | $	$ 6.7	$ 13.8	$ 29.8
United States
Summary of Significant Accounting Policies
Number of parks owned or operated	24
Mexico
Summary of Significant Accounting Policies
Number of parks owned or operated	2
Canada
Summary of Significant Accounting Policies
Number of parks owned or operated	1