Description of the Business and Significant Accounting Policies (Details) - USD ($) $ in Millions		3 Months Ended
	Nov. 02, 2023	Mar. 31, 2024
Six Flags
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Payments for merger related costs		$ 10.1
Six Flags | Third-party Legal And Consulting Costs
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Payments for merger related costs		6.4
Six Flags | Third-party Integration Consulting Costs
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Payments for merger related costs		$ 3.7
Six Flags Entertainment Corporation
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Corporate ownership interest (as a percent)	51.20%
Six Flags Entertainment Corporation | Six Flags
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Corporate ownership interest (as a percent)	48.80%