v3.20.1
INVESTMENTS (Details)
$ in Millions
3 Months Ended
Mar. 31, 2020
USD ($)
item
Mar. 31, 2019
USD ($)
Equity Method Investments Ownership Transactions [Abstract]    
Investment expense $ 7.2  
Recorded equity in earnings $ (2.9) $ 6.5
U.S.    
Investments    
Number of theatres with partnership interests | item 4  
Europe    
Investments    
Ownership percentage 50.00%  
Number of theatres with partnership interests | item 55  
DCM    
Investments    
Ownership percentage 50.00%  
SV Holdco    
Investments    
Ownership percentage 18.20%  
AC JV, LLC    
Investments    
Ownership percentage 32.00%  
DCIP    
Investments    
Ownership percentage 29.00%  
Equity Method Investments Ownership Transactions [Abstract]    
Recorded equity in earnings $ (1.9) (5.6)
SSC    
Investments    
Ownership percentage 10.00%  
Other    
Equity Method Investments Ownership Transactions [Abstract]    
Recorded equity in earnings $ (1.0) $ 0.9
DCDC    
Investments    
Ownership percentage 14.60%  
Maximum    
Investments    
Ownership percentage 50.00%