v3.20.4
LEASES - Income statement (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Operating costs and expenses                      
Rent                 $ 884.1 $ 967.8 $ 797.8
Depreciation and amortization                 498.3 450.0 537.8
Operating costs and expenses                 5,345.1 5,335.0 5,195.8
Operating income (loss) $ (969.6) $ (675.4) $ (471.6) $ (1,986.1) $ 43.4 $ 20.8 $ 105.5 $ (33.7) (4,102.7) 136.0 265.0
Capital and financing lease obligations                   7.6  
Net earnings (loss) attributable to AMC Entertainment Holdings, Inc. for basic earnings (loss) per share $ (945.8) $ (905.8) $ (561.2) $ (2,176.3) $ (13.5) $ (54.8) $ 49.4 $ (130.2) $ (4,589.1) (149.1) $ 110.1
Without Adoption of ASC 842                      
Operating costs and expenses                      
Rent                   851.3  
Depreciation and amortization                   546.0  
Operating costs and expenses                   5,314.5  
Operating income (loss)                   156.5  
Capital and financing lease obligations                   35.2  
Net earnings (loss) attributable to AMC Entertainment Holdings, Inc. for basic earnings (loss) per share                   (156.2)  
U.S.                      
Sale and leaseback                      
Rent payments for failed sale leasebacks                   44.0  
Non-cash amortization expense for favorable lease terms                   18.3  
Amortization of deferred gains on sale leaseback transactions                   7.2  
U.S. | Adjustments                      
Operating costs and expenses                      
Rent                   69.5  
Depreciation and amortization                   (53.6)  
Operating costs and expenses                   15.9  
Operating income (loss)                   (15.9)  
Capital and financing lease obligations                   (13.2)  
Net earnings (loss) attributable to AMC Entertainment Holdings, Inc. for basic earnings (loss) per share                   (2.7)  
International markets                      
Sale and leaseback                      
Rent payments for failed sale leasebacks                   39.6  
Non-cash amortization expense for favorable lease terms                   7.4  
International markets | Adjustments                      
Operating costs and expenses                      
Rent                   47.0  
Depreciation and amortization                   (42.4)  
Operating costs and expenses                   4.6  
Operating income (loss)                   (4.6)  
Capital and financing lease obligations                   (14.4)  
Net earnings (loss) attributable to AMC Entertainment Holdings, Inc. for basic earnings (loss) per share                   $ 9.8