v3.23.2
STOCKHOLDERS' EQUITY - Equity statements (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Feb. 07, 2023
Jun. 30, 2023
Mar. 31, 2023
Jun. 30, 2022
Mar. 31, 2022
Jun. 30, 2023
Jun. 30, 2022
Dec. 31, 2022
Increase (Decrease) in Stockholders' Equity                
Balance at the beginning of the period   $ (2,590.3) $ (2,624.5) $ (2,178.3) $ (1,789.5) $ (2,624.5) $ (1,789.5)  
Net Income (Loss)   8.6 (235.5) (121.6) (337.4) (226.9) (459.0)  
Other comprehensive loss   (40.0) (7.3) (46.3) (5.8)      
Increase in stockholders' deficit   32.7 70.5          
Taxes paid for restricted unit withholdings   (1.1) (13.1)   (52.2)      
Stock-based compensation   7.5 25.9 19.4 6.6      
Balance at the end of the period   (2,582.6) (2,590.3) (2,326.8) $ (2,178.3) (2,582.6) (2,326.8)  
Net proceeds from AMC Preferred Equity Units issuance           175.7    
Carrying value of corporate borrowings   4,693.7       4,693.7   $ 4,949.0
New Notes                
Increase (Decrease) in Stockholders' Equity                
Increase in stockholders' deficit $ 193.7              
Carrying value of corporate borrowings     118.6          
Forward purchase agreement                
Increase (Decrease) in Stockholders' Equity                
Increase in stockholders' deficit     $ 193.7          
Board of Directors                
Increase (Decrease) in Stockholders' Equity                
Shares awarded     85,552   41,650      
RSUs and PSUs vested     2,267,925   2,799,845      
Preferred Stock                
Increase (Decrease) in Stockholders' Equity                
Balance at the beginning of the period   0.1 $ 0.1 0.1 $ 0.1 0.1 0.1  
Balance at the end of the period   0.1 0.1 0.1 0.1 0.1 0.1  
Additional Paid-in Capital                
Increase (Decrease) in Stockholders' Equity                
Balance at the beginning of the period   5,322.1 5,045.1 4,811.7 4,857.4 5,045.1 4,857.4  
Increase in stockholders' deficit   32.7 70.5          
Taxes paid for restricted unit withholdings   (1.1) (13.1)   (52.2)      
Stock-based compensation   7.5 25.9 19.4 6.5      
Balance at the end of the period   5,361.2 5,322.1 4,831.1 4,811.7 5,361.2 4,831.1  
Additional Paid-in Capital | Forward purchase agreement                
Increase (Decrease) in Stockholders' Equity                
Increase in stockholders' deficit     193.7          
Accumulated Other Comprehensive Income (Loss)                
Increase (Decrease) in Stockholders' Equity                
Balance at the beginning of the period   (84.6) (77.3) (33.9) (28.1) (77.3) (28.1)  
Other comprehensive loss   (40.0) (7.3) (46.3) (5.8)      
Balance at the end of the period   (124.6) (84.6) (80.2) (33.9) (124.6) (80.2)  
Accumulated Earnings (Deficit)                
Increase (Decrease) in Stockholders' Equity                
Balance at the beginning of the period   (7,833.1) (7,597.6) (6,961.4) (6,624.0) (7,597.6) (6,624.0)  
Net Income (Loss)   8.6 (235.5) (121.6) (337.4)      
Balance at the end of the period   $ (7,824.5) $ (7,833.1) (7,083.0) (6,961.4) $ (7,824.5) (7,083.0)  
Class A common stock                
Increase (Decrease) in Stockholders' Equity                
Balance (in shares)     516,838,912     516,838,912    
Balance (in shares)   519,192,389       519,192,389    
Class A common stock | Common Stock                
Increase (Decrease) in Stockholders' Equity                
Balance at the beginning of the period   $ 5.2 $ 5.2 $ 5.2 $ 5.1 $ 5.2 $ 5.1  
Balance (in shares)   519,192,389 516,838,912 516,820,595 513,979,100 516,838,912 513,979,100  
Stock-based compensation         $ 0.1      
Stock-based compensation (in shares)     2,353,477   2,841,495      
Balance at the end of the period   $ 5.2 $ 5.2 $ 5.2 $ 5.2 $ 5.2 $ 5.2  
Balance (in shares)   519,192,389 519,192,389 516,820,595 516,820,595 519,192,389 516,820,595  
Series A Convertible Participating Preferred Stock | Preferred Stock                
Increase (Decrease) in Stockholders' Equity                
Balance (in shares)   9,741,909 7,245,872 5,168,206 5,139,791 7,245,872 5,139,791  
Number of stock issued (In shares)   212,156 492,880          
Stock-based compensation (in shares)     26,944   28,415      
Balance (in shares)   9,954,065 9,741,909 5,168,206 5,168,206 9,954,065 5,168,206  
Series A Convertible Participating Preferred Stock | Preferred Stock | Forward purchase agreement                
Increase (Decrease) in Stockholders' Equity                
Number of stock issued (In shares)     1,976,213          
AMC Preferred Stock Depository Shares | Preferred Stock                
Increase (Decrease) in Stockholders' Equity                
Balance (in shares)   974,190,794 724,587,058 516,820,595 513,979,100 724,587,058 513,979,100  
Number of stock issued (In shares)   21,215,619 49,287,989          
Stock-based compensation (in shares)     2,694,450   2,841,495      
Balance (in shares)   995,406,413 974,190,794 516,820,595 516,820,595 995,406,413 516,820,595  
AMC Preferred Stock Depository Shares | Preferred Stock | Forward purchase agreement                
Increase (Decrease) in Stockholders' Equity                
Number of stock issued (In shares)     197,621,297          
AMC Preferred Equity Units                
Increase (Decrease) in Stockholders' Equity                
Net proceeds from AMC Preferred Equity Units issuance $ 75.1   $ 75.1          
AMC Preferred Equity Units | New Notes                
Increase (Decrease) in Stockholders' Equity                
Number of stock issued (In shares) 197,621,297              
AMC Preferred Equity Units | Board of Directors                
Increase (Decrease) in Stockholders' Equity                
Shares awarded     153,696   41,650      
RSUs and PSUs vested     2,540,754   2,799,845