v3.21.2
STOCKHOLDERS' EQUITY - Equity statements (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Dec. 14, 2020
Feb. 26, 2020
Jun. 30, 2021
Mar. 31, 2021
Jun. 30, 2020
Mar. 31, 2020
Jun. 30, 2021
Jun. 30, 2020
Increase (Decrease) in Stockholders' Equity                
Balance at the beginning of the period     $ (2,287.0) $ (2,858.2) $ (1,074.0) $ 1,214.2 $ (2,858.2) $ 1,214.2
Net loss     (343.6)   (561.2) (2,176.3) (910.5) (2,737.5)
Net loss     (344.0) (567.2) (561.2)   (911.2) (2,737.5)
Other comprehensive income (loss)     20.5 (51.2) 56.0 (93.5) (30.7) (37.5)
Other comprehensive income (loss)     21.4          
Gain (Loss) From Liquidation Of Subsidiary     (22.9)          
Baltics noncontrolling capital contributions       (3.8)        
Class A common stock, accrued dividend equivalent adjustment     (0.2) (0.1) 0.1      
Class A common stock issuance     989.2 581.6        
Convertible Notes due 2026 stock conversion       606.5        
Dividends declared   $ (3.2)            
Taxes paid for restricted unit withholdings           (1.0)    
Stock-based compensation     8.4 5.4 3.7 2.7    
Balance at the end of the period     (1,404.7) (2,287.0) (1,575.4) (1,074.0) (1,404.7) (1,575.4)
Cumulative Effect, Period of Adoption, Adjustment [Member]                
Increase (Decrease) in Stockholders' Equity                
Balance at the beginning of the period         (16.9)      
Balance at the end of the period           (16.9)    
Mudrick Capital Management LP [Member]                
Increase (Decrease) in Stockholders' Equity                
Class A common stock issuance     230.4          
Total AMC Stockholders' Equity (Deficit)                
Increase (Decrease) in Stockholders' Equity                
Balance at the beginning of the period     (2,309.4) (2,885.1)     (2,885.1)  
Net loss     (343.6) (566.9)        
Other comprehensive income (loss)       (51.0)        
Other comprehensive income (loss)     21.4          
Gain (Loss) From Liquidation Of Subsidiary     (0.9)          
Baltics noncontrolling capital contribution       0.2        
Class A common stock, accrued dividend equivalent adjustment     (0.2) (0.1)        
Class A common stock issuance     989.2 581.6        
Convertible Notes due 2026 stock conversion       606.5        
Stock-based compensation     8.4 5.4        
Balance at the end of the period     (1,404.7) (2,309.4)     (1,404.7)  
Total AMC Stockholders' Equity (Deficit) | Mudrick Capital Management LP [Member]                
Increase (Decrease) in Stockholders' Equity                
Class A common stock issuance     230.4          
Additional Paid-in Capital                
Increase (Decrease) in Stockholders' Equity                
Balance at the beginning of the period     3,657.1 2,465.6 2,003.6 2,001.9 2,465.6 2,001.9
Baltics noncontrolling capital contribution       0.2        
Class A common stock issuance     951.6 579.8        
Convertible Notes due 2026 stock conversion       606.1        
Taxes paid for restricted unit withholdings           (1.0)    
Stock-based compensation     8.4 5.4 3.7 2.7    
Balance at the end of the period     4,847.4 3,657.1 2,007.3 2,003.6 4,847.4 2,007.3
Additional Paid-in Capital | Mudrick Capital Management LP [Member]                
Increase (Decrease) in Stockholders' Equity                
Class A common stock issuance     230.3          
Treasury Stock                
Increase (Decrease) in Stockholders' Equity                
Balance at the beginning of the period     $ (56.4) $ (56.4) $ (56.4) $ (56.4) $ (56.4) $ (56.4)
Balance (in shares)     3,732,625 3,732,625 3,732,625 3,732,625 3,732,625 3,732,625
Class A common stock issuance     $ 56.4          
Class A common stock issuance (In shares)     (3,732,625)          
Balance at the end of the period       $ (56.4) $ (56.4) $ (56.4)   $ (56.4)
Balance (in shares)       3,732,625 3,732,625 3,732,625   3,732,625
Accumulated Other Comprehensive Income (Loss)                
Increase (Decrease) in Stockholders' Equity                
Balance at the beginning of the period     $ (12.3) $ 38.7 $ (119.6) $ (26.1) $ 38.7 $ (26.1)
Other comprehensive income (loss)       (51.0) 56.0 (93.5)    
Other comprehensive income (loss)     21.4          
Gain (Loss) From Liquidation Of Subsidiary     (0.9)          
Balance at the end of the period     8.2 (12.3) (63.6) (119.6) 8.2 (63.6)
Accumulated Earnings (Deficit)                
Increase (Decrease) in Stockholders' Equity                
Balance at the beginning of the period     (5,902.3) (5,335.3) (2,902.6) (706.2) (5,335.3) (706.2)
Net loss         (561.2) (2,176.3)    
Net loss     (343.6) (566.9)        
Class A common stock, accrued dividend equivalent adjustment     (0.2) (0.1) 0.1      
Class A common stock issuance     (19.3)          
Balance at the end of the period     (6,265.4) (5,902.3) (3,463.7) (2,902.6) (6,265.4) (3,463.7)
Accumulated Earnings (Deficit) | Cumulative Effect, Period of Adoption, Adjustment [Member]                
Increase (Decrease) in Stockholders' Equity                
Balance at the beginning of the period         (16.9)      
Balance at the end of the period           (16.9)    
Noncontrolling Interests                
Increase (Decrease) in Stockholders' Equity                
Balance at the beginning of the period     22.4 26.9     $ 26.9  
Net loss     (0.4) (0.3)        
Other comprehensive income (loss)       (0.2)        
Gain (Loss) From Liquidation Of Subsidiary     $ (22.0)          
Baltics noncontrolling capital contribution       (4.0)        
Balance at the end of the period       $ 22.4        
Class A common stock                
Increase (Decrease) in Stockholders' Equity                
Balance (in shares)       172,563,249     172,563,249  
Balance (in shares)     513,330,240       513,330,240  
Class A common stock | Mudrick Capital Management LP [Member]                
Increase (Decrease) in Stockholders' Equity                
Class A common stock issuance (In shares) 21,978,022              
Class A common stock | Dividend declared                
Increase (Decrease) in Stockholders' Equity                
Dividends declared           (1.6)    
Class A common stock | Common Stock                
Increase (Decrease) in Stockholders' Equity                
Balance at the beginning of the period     $ 4.5 $ 1.8 $ 0.5 $ 0.5 $ 1.8 $ 0.5
Balance (in shares)     450,280,240 172,563,249 52,549,593 52,080,077 172,563,249 52,080,077
Class A common stock issuance     $ 0.5 $ 1.8        
Class A common stock issuance (In shares)     54,550,000 187,066,293        
Wanda conversion of Class B shares to Class A shares       $ 0.5        
Wanda conversion of Class B shares to Class A shares (in shares)       46,103,784        
Convertible Notes due 2026 stock conversion       $ 0.4        
Convertible Notes due 2026 stock conversion (in shares)       44,422,860        
Stock-based compensation (in shares)       124,054   469,516    
Balance at the end of the period     $ 5.1 $ 4.5 $ 0.5 $ 0.5 $ 5.1 $ 0.5
Balance (in shares)     513,330,240 450,280,240 52,549,593 52,549,593 513,330,240 52,549,593
Class A common stock | Common Stock | Mudrick Capital Management LP [Member]                
Increase (Decrease) in Stockholders' Equity                
Class A common stock issuance     $ 0.1          
Class A common stock issuance (In shares)     8,500,000          
Class A common stock | Accumulated Earnings (Deficit) | Dividend declared                
Increase (Decrease) in Stockholders' Equity                
Dividends declared           $ (1.6)    
Class B common stock                
Increase (Decrease) in Stockholders' Equity                
Balance (in shares)       51,769,784     51,769,784  
Balance (in shares)     0       0  
Class B common stock | Dividend declared                
Increase (Decrease) in Stockholders' Equity                
Dividends declared           (1.6)    
Class B common stock | Common Stock                
Increase (Decrease) in Stockholders' Equity                
Balance at the beginning of the period       $ 0.5 $ 0.5 $ 0.5 $ 0.5 $ 0.5
Balance (in shares)       51,769,784 51,769,784 51,769,784 51,769,784 51,769,784
Wanda conversion of Class B shares to Class A shares       $ (0.5)        
Wanda conversion of Class B shares to Class A shares (in shares)       (46,103,784)        
Wanda forfeit and cancellation of Class B shares (in shares)       (5,666,000)        
Balance at the end of the period         $ 0.5 $ 0.5   $ 0.5
Balance (in shares)         51,769,784 51,769,784   51,769,784
Class B common stock | Accumulated Earnings (Deficit) | Dividend declared                
Increase (Decrease) in Stockholders' Equity                
Dividends declared           $ (1.6)