v3.25.4
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES - Long-term debt and lease obligations (Details) - USD ($)
$ in Millions
 12 Months Ended
Jul. 24, 2025
Jul. 22, 2024
Dec. 31, 2025
Dec. 31, 2024
Jul. 01, 2025
Jul. 31, 2020
Mar. 17, 2017
Nov. 08, 2016
Jun. 05, 2015
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES                  
Total principal amount of corporate borrowings     $ 4,024.2 $ 4,134.5          
Finance lease liabilities     52.5 49.3          
Accrued paid-in-kind interest     2.7 1.5          
Deferred financing costs     (64.4) (47.2)          
Net discount     (68.5) (171.3)          
Total carrying value of corporate borrowings and finance lease liabilities     4,091.0 4,124.4          
Current maturities of corporate borrowings     (19.9) (64.2)          
Current maturities of finance lease liabilities     (5.8) (4.4)          
Total noncurrent carrying value of corporate borrowings and finance lease liabilities     4,065.3 4,055.8          
Credit Agreement-Term Loans due 2029                  
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES                  
Total principal amount of corporate borrowings     1,994.2 2,014.2          
Net discount     $ (32.6) $ (43.4)          
Effective interest rate     10.731% 11.356%          
Odeon Senior Secured Note 2027                  
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES                  
Total principal amount of corporate borrowings     $ 400.0 $ 400.0          
Net discount     $ (14.6) $ (20.9)          
Stated interest rate (as a percent)     12.75% 12.75%          
Senior Secured Exchangeable Notes due 2030                  
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES                  
Total principal amount of corporate borrowings     $ 155.8   $ 194.4        
Deferred financing costs     (14.8)   (6.4)        
Net discount     (57.4)   (35.4)        
Bifurcated embedded derivative     $ 131.9   41.7        
Effective interest rate     17.00%            
Interest rate cash (as a percent) 6.00%   1.50%            
PIK interest rate (as a percent) 2.00%                
6.00%/8.00% Cash/PIK Toggle Senior Secured Exchangeable Notes due 2030                  
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES                  
Total principal amount of corporate borrowings     $ 111.6 $ 427.6 337.4        
Accrued paid-in-kind interest     0.4 1.5          
Deferred financing costs     (5.2) (23.3) (17.1)        
Net discount     (26.4) (117.9)          
Bifurcated embedded derivative     $ 12.6 $ 157.6 88.3        
Effective interest rate     15.12%            
Interest rate cash (as a percent)   6.00% 6.00% 6.00%          
PIK interest rate (as a percent)   8.00% 8.00% 8.00%          
Second Lien Subordinated Secured Notes Due 2026                  
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES                  
Total principal amount of corporate borrowings       $ 131.2          
Net discount       $ 10.9          
Interest rate cash (as a percent)       10.00%          
PIK interest rate (as a percent)       12.00%          
First Lien Notes due 2029                  
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES                  
Total principal amount of corporate borrowings     $ 360.0 $ 950.0 590.0        
Deferred financing costs         $ (5.6)        
Stated interest rate (as a percent)     7.50% 7.50%          
Senior Secured Notes due 2029                  
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES                  
Total principal amount of corporate borrowings     $ 877.1            
Net discount     $ 62.5            
Interest rate cash (as a percent) 9.00%   9.00%            
PIK interest rate (as a percent) 6.00%   6.00%            
5.75% Senior Subordinated Notes due 2025                  
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES                  
Total principal amount of corporate borrowings       $ 44.1          
Stated interest rate (as a percent)       5.75%   5.75%     5.75%
5.875% Senior Subordinated Notes due 2026                  
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES                  
Total principal amount of corporate borrowings       $ 41.9          
Stated interest rate (as a percent)       5.875%       5.875%  
6.125% Senior Subordinated Notes due 2027                  
CORPORATE BORROWINGS AND FINANCE LEASE LIABILITIES                  
Total principal amount of corporate borrowings     $ 125.5 $ 125.5          
Deferred financing costs             $ (19.8)    
Stated interest rate (as a percent)     6.125% 6.125%     6.125%