v3.19.3.a.u2
GOODWILL AND INTANGIBLE ASSETS - Additional information of intangible assets acquired (Details) - USD ($)
$ in Millions
12 Months Ended
Mar. 28, 2017
Dec. 31, 2019
Dec. 31, 2018
Amortizable Intangible Assets:      
Gross Carrying Amount   $ 52.5 $ 258.5
Accumulated Amortization   (22.8) (72.9)
Unamortized Intangible Assets:      
Total, unamortizable   165.6 166.5
Favorable leases      
Amortizable Intangible Assets:      
Gross Carrying Amount     206.0
Accumulated Amortization     (55.4)
Management contracts      
Amortizable Intangible Assets:      
Gross Carrying Amount   11.8 11.8
Accumulated Amortization   $ (7.9) (6.2)
Management contracts | Minimum      
Amortizable Intangible Assets:      
Remaining Useful Life   1 year  
Management contracts | Maximum      
Amortizable Intangible Assets:      
Remaining Useful Life   7 years  
Non-compete agreements      
Amortizable Intangible Assets:      
Gross Carrying Amount   $ 2.6 2.6
Accumulated Amortization   $ (2.1) (1.5)
NCM tax receivable agreement      
Amortizable Intangible Assets:      
Remaining Useful Life   17 years  
Gross Carrying Amount   $ 20.9 20.9
Accumulated Amortization   (6.2) (5.3)
AMCE      
Unamortized Intangible Assets:      
Trade names   $ 104.4 104.4
Carmike      
Amortizable Intangible Assets:      
Remaining Useful Life   4 years  
Gross Carrying Amount   $ 9.3 9.3
Accumulated Amortization   (4.0) (2.7)
Odeon      
Unamortized Intangible Assets:      
Trade names   50.7 51.4
Nordic      
Amortizable Intangible Assets:      
Remaining Useful Life 5 years 6 months    
Gross Carrying Amount $ 11.6    
Unamortized Intangible Assets:      
Trade names $ 10.5 $ 10.5 10.7
Nordic | Favorable leases      
Amortizable Intangible Assets:      
Remaining Useful Life 7 years    
Gross Carrying Amount $ 3.5    
Nordic | Trade name agreement      
Amortizable Intangible Assets:      
Remaining Useful Life 4 years    
Gross Carrying Amount $ 0.4    
Starplex Cinemas      
Amortizable Intangible Assets:      
Remaining Useful Life   7 years  
Gross Carrying Amount   $ 7.9 7.9
Accumulated Amortization   $ (2.6) $ (1.8)
Starplex Cinemas | Non-compete agreements      
Amortizable Intangible Assets:      
Remaining Useful Life   2 years