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Description of the Business and Significant Accounting Policies (Details)
$ in Millions
1 Months Ended 3 Months Ended 12 Months Ended
Nov. 13, 2025
claim
Dec. 27, 2023
plaintiff
Dec. 26, 2023
claim
Feb. 29, 2020
claim
Sep. 29, 2024
USD ($)
Dec. 31, 2025
Mar. 29, 2026
USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Percentage of park attendance and revenue during peak period           70.00%  
Securities Class Action Lawsuits              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Settlement amount awarded | $         $ 40.0    
Insurance settlement receivable | $             $ 40.0
Loss contingency payable | $             $ 40.0
Securities Class Action Lawsuits | Pending Litigation | Former Six Flags              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Number of claims filed | claim       2      
Americans With Disabilities Act Violation Complaint, California Subclass | Pending Litigation | Former Six Flags              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Number of claims filed | claim 2   2        
Americans With Disabilities Act Violation Complaint | Pending Litigation | Former Six Flags              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Number of claims filed | claim 2            
Number of additional plaintiffs | plaintiff   2