v3.10.0.1
THEATRE AND OTHER CLOSURE AND DISPOSITION OF ASSETS (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
A roll forward of reserves for theatre and other closure and disposition of assets        
Beginning balance     $ 27.5 $ 34.6
Theatre and other closure expense $ 0.9 $ (0.6) 3.1 1.1
Transfer of assets and liabilities     1.0 1.2
Foreign currency translation adjustment     (0.3) 1.0
Cash payments     (9.9) (8.3)
Ending balance 21.4 $ 29.6 21.4 $ 29.6
Accrued Expenses And Other Liabilities Current Caption [Member]        
A roll forward of reserves for theatre and other closure and disposition of assets        
Current portion included with accrued expenses and other liabilities 7.3   7.3  
Other Noncurrent Liabilities [Member]        
A roll forward of reserves for theatre and other closure and disposition of assets        
Long-term portion included with other long-term liabilities $ 14.1   $ 14.1