v3.22.0.1
INVESTMENTS - Related Party Transactions (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Related Party Transactions      
Advertising expense $ 28.4 $ 10.7 $ 42.6
DCM      
Related Party Transactions      
Receivable due from related party 2.2    
Loan receivable from affiliate 0.7 0.7  
DCM | Other revenues      
Related Party Transactions      
Related party revenues 7.8 3.8 22.4
DCIP      
Related Party Transactions      
Receivable due from related party   5.7  
DCIP | Operating expense (income)      
Related Party Transactions      
Film exhibition costs, Related party 0.2 1.0 3.6
AC JV, LLC      
Related Party Transactions      
Amounts due to affiliate (3.7) (0.9)  
AC JV, LLC | Film exhibition costs.      
Related Party Transactions      
Film exhibition costs, Related party 10.4 3.9 13.6
Screenvision      
Related Party Transactions      
Receivable due from related party 2.3 0.4  
Screenvision | Other revenues      
Related Party Transactions      
Film exhibition costs, Related party 4.6 2.6 $ 15.6
Nordic      
Related Party Transactions      
Receivable due from related party 0.9 1.2  
Amounts due to affiliate (1.1) (0.5)  
SCC      
Related Party Transactions      
Receivable due from related party $ 1.3 0.7  
U.S. theatres and IMAX screen      
Related Party Transactions      
Amounts due to affiliate   $ (0.4)