v3.23.3
STOCKHOLDERS' EQUITY - Awards granted (Details)
$ in Millions
 9 Months Ended
Aug. 25, 2023
shares
Sep. 30, 2023
USD ($)
tranche
shares
STOCKHOLDERS' EQUITY    
Conversion of share based payment awards into preferred stock   1
Conversion of Convertible Securities into common stock 99,540,642  
Conversion ratio of share based payment awards into common stock   1
2023 Performance share award    
STOCKHOLDERS' EQUITY    
Granted (in shares)   95,883
Stock value | $   $ 3.9
2022 Performance share award    
STOCKHOLDERS' EQUITY    
Granted (in shares)   46,192
Stock value | $   $ 1.9
2021 Performance share award    
STOCKHOLDERS' EQUITY    
Granted (in shares)   160,280
Stock value | $   $ 6.8
Percentage of performance target   100.00%
Restricted stock unit | Members of management and executive officers    
STOCKHOLDERS' EQUITY    
Number of shares to be received for each unit   1
Performance Vesting | Members of management and executive officers    
STOCKHOLDERS' EQUITY    
Granted (in shares)   287,664
Number of tranches | tranche   3
Awards to be granted if target not achieved (in shares)   0
Performance Vesting | Members of management and executive officers | Minimum    
STOCKHOLDERS' EQUITY    
PSUs vesting as a percentage of performance target   80.00%
Percentage of performance target   50.00%
Performance Vesting | Members of management and executive officers | Maximum    
STOCKHOLDERS' EQUITY    
PSUs vesting as a percentage of performance target   120.00%
Percentage of performance target   200.00%
2013 Equity Incentive Plan    
STOCKHOLDERS' EQUITY    
Conversion of Convertible Securities into common stock   1
2013 Equity Incentive Plan | Members of management    
STOCKHOLDERS' EQUITY    
Granted (in shares)   313,831
Grant date fair value (in dollars) | $   $ 12.0
Vesting period (in years)   3 years
Vesting rights percentage   33.33%
2013 Equity Incentive Plan | Employee Stock Option [Member] | Board of Directors    
STOCKHOLDERS' EQUITY    
Shares granted   8,555
Grant date fair value | $   $ 0.9
2013 Equity Incentive Plan | Restricted stock unit | Members of management    
STOCKHOLDERS' EQUITY    
Number of days for settlement   30 days
2013 Equity Incentive Plan | Performance Vesting | Members of management and executive officers    
STOCKHOLDERS' EQUITY    
Percentage of performance target   100.00%
Awards to be granted upon achieving 100% of performance target (in shares)   287,664
AMC Preferred Equity Units | RSU and PSU Units    
STOCKHOLDERS' EQUITY    
Nonvested shares   169,401
AMC Preferred Equity Units | RSU and PSU Units | 2023 Tranche Year    
STOCKHOLDERS' EQUITY    
Nonvested shares   112,894
AMC Preferred Equity Units | RSU and PSU Units | 2024 & 2025 Tranche Year    
STOCKHOLDERS' EQUITY    
Nongranted shares   56,507
AMC Preferred Equity Units | 2013 Equity Incentive Plan | Board of Directors    
STOCKHOLDERS' EQUITY    
Shares granted   15,370