v3.22.2.2
BASIS OF PRESENTATION - Liquidity (Details)
€ in Millions, £ in Millions, item in Millions
 3 Months Ended 9 Months Ended 12 Months Ended
Oct. 20, 2022
USD ($)
Aug. 04, 2022
shares
Sep. 30, 2022
USD ($)
shares
Jun. 30, 2022
USD ($)
Mar. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
shares
Sep. 30, 2021
USD ($)
Jun. 30, 2021
USD ($)
Mar. 31, 2021
USD ($)
Sep. 30, 2022
USD ($)
item
shares
Sep. 30, 2021
USD ($)
item
Dec. 31, 2021
USD ($)
shares
Jun. 30, 2023
USD ($)
Jun. 30, 2023
EUR (€)
Oct. 22, 2022
USD ($)
Dec. 20, 2021
USD ($)
Dec. 20, 2021
GBP (£)
THE COMPANY AND SIGNIFICANT ACCOUNTING POLICIES                                  
Total revenues     $ 968,400,000       $ 763,200,000     $ 2,920,500,000 $ 1,356,200,000            
Number of patrons | item                   151.4 68.9            
Increase in patrons | item                   82.5              
Net cash used in operating activities     (223,600,000) $ (76,600,000) $ (295,000,000.0) $ 46,500,000 (113,900,000) $ (233,800,000) $ (312,900,000) $ (595,200,000) $ (660,600,000) $ (614,100,000)          
Increase (decrease) in net cash used in operating activities     (147,000,000.0) 218,400,000 341,500,000 160,400,000 119,900,000 79,100,000                  
Deferred lease amounts     195,800,000     315,100,000       195,800,000   315,100,000          
Net cash provided by (used in) investing activities     (50,800,000) (48,000,000.0) (54,900,000) (36,900,000) (28,800,000) 13,500,000 (16,000,000.0) (153,700,000) (31,300,000) (68,200,000)          
Net cash provided by (used in) financing activities     500,000 (59,700,000) (76,300,000) $ (27,900,000) (48,300,000) $ 1,212,200,000 $ 854,700,000 (135,500,000) 2,018,600,000 $ 1,990,700,000          
Capital expenditures     54,500,000 40,400,000 34,800,000   $ 24,100,000     129,700,000 53,900,000            
Investments in non-consolidated entities, net         27,900,000         27,900,000 9,300,000            
Proceeds from disposition of long-term assets     3,600,000   7,200,000         10,800,000 3,400,000            
Acquisition of theatre assets       (17,800,000)           (17,800,000) (5,800,000)            
Taxes paid for restricted unit withholdings         52,200,000         52,200,000              
Cash used to pay for deferred financing costs     500,000 1,100,000 17,700,000         19,300,000 $ 19,900,000            
Net proceeds from AMC Preferred Equity Units issuance     8,500,000             $ 7,800,000              
Debt repurchased, percent of par value                   69.00%              
Proceeds from issuance of Notes         950,000,000.0                        
Net proceeds from the Company's equity issuances       11,400,000           $ 11,400,000              
Principal and premium repayments     $ 7,400,000 57,900,000 $ 955,700,000                        
Common stock dividend declared | shares   1                              
Conversion ratio   0.01 0.01             0.01              
Preferred stock authorized | shares     50,000,000     50,000,000       50,000,000   50,000,000          
Preferred stock, unallocated authorized shares | shares     40,000,000             40,000,000              
Senior Secured Credit Facility                                  
THE COMPANY AND SIGNIFICANT ACCOUNTING POLICIES                                  
Amount of minimum liquidity requirements                         $ 136,200,000     $ 136,200,000  
Aggregate principal amount                         100,000,000     100,000,000  
Odean Term Loan Facility                                  
THE COMPANY AND SIGNIFICANT ACCOUNTING POLICIES                                  
Aggregate principal amount                         $ 36,200,000 € 32.5   $ 36,200,000 £ 32.5
Odeon Term Loan Facility due 2023                                  
THE COMPANY AND SIGNIFICANT ACCOUNTING POLICIES                                  
Stated interest rate (as a percent)     11.25%             11.25%              
AMC Preferred Equity Units                                  
THE COMPANY AND SIGNIFICANT ACCOUNTING POLICIES                                  
Cash used to pay for deferred financing costs       $ 700,000                          
Preferred stock authorized | shares     10,000,000     10,000,000       10,000,000   10,000,000          
Preferred stock, shares issued (in shares) | shares     5,195,206     5,139,791       5,195,206   5,139,791          
Preferred stock, unallocated authorized shares | shares     40,000,000             40,000,000              
Other Noncurrent Liabilities [Member] | Odeon Senior Secured Note 2027                                  
THE COMPANY AND SIGNIFICANT ACCOUNTING POLICIES                                  
Aggregate principal amount                             $ 363,000,000.0    
Other Current Liabilities [Member] | Odeon Senior Secured Note 2027                                  
THE COMPANY AND SIGNIFICANT ACCOUNTING POLICIES                                  
Aggregate principal amount                             $ 108,100,000    
Subsequent Events | Odeon Term Loan Facility due 2023                                  
THE COMPANY AND SIGNIFICANT ACCOUNTING POLICIES                                  
Proceeds from issuance of Notes $ 363,000,000                                
Principal and premium repayments 363,000,000.0                                
Subsequent Events | Odeon Senior Secured Note 2027                                  
THE COMPANY AND SIGNIFICANT ACCOUNTING POLICIES                                  
Amount of minimum liquidity requirements 0                                
Aggregate principal amount $ 400,000,000.0                                
Stated interest rate (as a percent) 12.75%                                
Subsequent Events | Other Noncurrent Liabilities [Member]                                  
THE COMPANY AND SIGNIFICANT ACCOUNTING POLICIES                                  
Aggregate principal amount $ 363,000,000.0                                
Subsequent Events | Other Current Liabilities [Member]                                  
THE COMPANY AND SIGNIFICANT ACCOUNTING POLICIES                                  
Aggregate principal amount $ 108,100,000