v3.26.3
Business Combinations - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Nov. 14, 2025
Oct. 01, 2026
Sep. 25, 2025
Oct. 01, 2026
Sep. 25, 2025
Sep. 18, 2026
Business Combination [Line Items]            
Network operating costs   $ 3.2 $ 3.2 $ 10.9 $ 9.4  
Selling and marketing costs   9.0 10.1 28.3 30.6  
Administrative and other costs   19.5 $ 10.6 43.6 $ 34.0  
Spotlight Cinema Networks            
Business Combination [Line Items]            
Acquired business contributed revenues   2.0   6.0    
Acquired business contributed net loss   0.4   0.4    
Spotlight Cinema Networks | Transitional Agreements            
Business Combination [Line Items]            
Network operating costs   0.0   0.0    
Selling and marketing costs   0.0   0.0    
Administrative and other costs   0.0   0.2    
Captivate            
Business Combination [Line Items]            
Purchase consideration in percentage           100.00%
Intangible assets acquired           $ 183.3
Acquired business contributed revenues   2.5   2.5    
Acquired business contributed net loss   1.7   1.7    
MIPA | Spotlight Cinema Networks            
Business Combination [Line Items]            
Percentage of common membership units outstanding 100.00%          
Undiscounted maximum amount of contingent consideration $ 1.6          
Increase in contingently returnable consideration   $ 0.1   $ 0.2