v3.25.2
Mergers - Schedule of Purchase Price Allocation of Assets Acquired and Liabilities Assumed (Details) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Jun. 29, 2025
Jun. 29, 2025
Dec. 31, 2024
Jul. 01, 2024
Jun. 30, 2024
Dec. 31, 2023
Adjusted Allocation            
Goodwill $ 3,399,090 $ 3,399,090 $ 3,296,523   $ 262,592 $ 264,625
Former Six Flags            
Adjusted Allocation            
Receivables 90,792 90,792   $ 84,853    
Inventories 40,137 40,137   40,580    
Other current assets 44,889 44,889   53,000    
Property and equipment, net 2,710,053 2,710,053   3,356,409    
Other intangibles, net 850,000 850,000 $ 850,000 850,000    
Right-of-use assets 169,902 169,902   167,074    
Other assets 14,688 14,688   14,688    
Total assets acquired 3,920,461 3,920,461   4,566,604    
Current maturities of long-term debt 56,583 56,583   56,867    
Accounts payable 73,798 73,798   73,445    
Deferred revenue 208,943 208,943   206,398    
Accrued interest 23,448 23,448   23,448    
Accrued taxes 9,713 9,713   15,465    
Accrued salaries, wages and benefits 19,682 19,682   19,216    
Self-insurance reserves 83,734 83,734   75,670    
Other accrued liabilities 61,284 61,284   63,487    
Deferred tax liabilities 692,573 692,573   756,211    
Lease liabilities 189,439 189,439   184,343    
Other liabilities 24,497 24,497   24,497    
Long-term debt 2,373,322 2,373,322   2,373,322    
Total liabilities assumed 3,817,016 3,817,016   3,872,369    
Total net assets to be acquired 103,445 103,445   694,235    
Goodwill 3,143,881 3,143,881   2,553,091    
Fair Value of Net Assets Acquired 3,247,326 3,247,326   $ 3,247,326    
Measurement Period Adjustments            
Receivables   5,939        
Inventories   (443)        
Other current assets   (8,111)        
Property and equipment, net   (646,356)        
Other intangibles, net   0        
Right-of-use assets   2,828        
Other assets   0        
Total assets acquired   (646,143)        
Current maturities of long-term debt   (284)        
Accounts payable   353        
Deferred revenue   2,545        
Accrued interest   0        
Accrued taxes   (5,752)        
Accrued salaries, wages and benefits   466        
Self-insurance reserves   8,064        
Other accrued liabilities   (2,203)        
Deferred tax liabilities   (63,638)        
Lease liabilities   5,096        
Other liabilities   0        
Long-term debt   0        
Total liabilities assumed   (55,353)        
Total net assets to be acquired   (590,790)        
Goodwill $ 590,800 590,790        
Fair Value of Net Assets Acquired   $ 0