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Summary of Significant Accounting Policies - Additional Information (Detail)
 12 Months Ended
Dec. 31, 2025
USD ($)
Segment
Business
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Summary Of Significant Accounting Policies [Line Items]      
Cash and cash equivalents settlement terms less than four days    
Cash and cash equivalents $ 99,762,000 $ 115,893,000  
Allowance on installment arrangements of accounts receivable 19,000,000.0 20,400,000  
Credit loss 8,600,000    
Prior Periods Uncollectible Balances 4,700,000    
Reduction to deferred revenue 19,000,000.0 20,400,000  
Interest capitalized 2,500,000 5,400,000 $ 11,100,000
Capitalized Computer Software, Net 32,300,000 21,800,000  
Capitalized Computer Software, Accumulated Amortization 25,600,000 18,600,000  
Capitalized Computer Software, Amortization 5,000,000 3,900,000 1,800,000
Self-insurance reserves 88,100,000 70,400,000  
Revenue and related expense for bartered ticket transactions $ 20,700,000 20,900,000 16,200,000
Lease initial or expected term 12 months    
Number of theme parks owned and operated | Business 12    
Number of reportable segment | Segment 1    
Selling, General and Administrative Expenses [Member]      
Summary Of Significant Accounting Policies [Line Items]      
Other advertising and media costs $ 129,600,000 121,800,000 $ 108,700,000
Accrued Salaries, Wages and Benefits [Member]      
Summary Of Significant Accounting Policies [Line Items]      
Self-insurance reserves 2,400,000 2,200,000  
Other Accrued Liabilities [Member]      
Summary Of Significant Accounting Policies [Line Items]      
Self-insurance reserves $ 22,800,000 20,000,000.0  
Computer System Development Costs [Member]      
Summary Of Significant Accounting Policies [Line Items]      
Estimated useful life 5 years    
Maximum [Member]      
Summary Of Significant Accounting Policies [Line Items]      
FDIC insured amount $ 250,000    
Extend or renewal lease term 10 years    
Maximum [Member] | Animals [Member]      
Summary Of Significant Accounting Policies [Line Items]      
Estimated useful life 50 years    
Minimum [Member]      
Summary Of Significant Accounting Policies [Line Items]      
Extend or renewal lease term 1 year    
Minimum [Member] | Animals [Member]      
Summary Of Significant Accounting Policies [Line Items]      
Estimated useful life 1 year    
Amounts Due from Third-Party Credit Card Companies [Member]      
Summary Of Significant Accounting Policies [Line Items]      
Cash and cash equivalents $ 16,300,000 $ 14,500,000