v3.23.2
STOCKHOLDERS' EQUITY - Awards granted (Details)
$ / shares in Units, $ in Millions
 6 Months Ended
Jun. 30, 2023
USD ($)
tranche
$ / shares
shares
STOCKHOLDERS' EQUITY  
Conversion of share based payment awards into preferred stock 1
Conversion ratio of share based payment awards into common stock 1
2023 Performance share award  
STOCKHOLDERS' EQUITY  
Granted (in shares) 942,552
Stock value | $ $ 3.9
2022 Performance share award  
STOCKHOLDERS' EQUITY  
Granted (in shares) 461,016
Stock value | $ $ 1.9
2021 Performance share award  
STOCKHOLDERS' EQUITY  
Granted (in shares) 1,601,522
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) 942,552
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 | Members of management  
STOCKHOLDERS' EQUITY  
Granted (in shares) 2,827,979
Grant date fair value (in dollars) | $ $ 11.6
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 85,552
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) 942,552
Class A common stock  
STOCKHOLDERS' EQUITY  
Price per share (in dollars per share) | $ / shares $ 6.23
AMC Preferred Equity Units  
STOCKHOLDERS' EQUITY  
Price per share (in dollars per share) | $ / shares $ 2.22
Conversion ratio of share based payment awards into common stock 1
AMC Preferred Equity Units | RSU and PSU Units  
STOCKHOLDERS' EQUITY  
Nonvested shares 1,723,830
AMC Preferred Equity Units | RSU and PSU Units | 2023 Tranche Year  
STOCKHOLDERS' EQUITY  
Nonvested shares 1,149,113
AMC Preferred Equity Units | RSU and PSU Units | 2024 & 2025 Tranche Year  
STOCKHOLDERS' EQUITY  
Nongranted shares 574,717
AMC Preferred Equity Units | Restricted stock unit | Members of management and executive officers  
STOCKHOLDERS' EQUITY  
Number of shares to be received for each unit 1
AMC Preferred Equity Units | 2013 Equity Incentive Plan | Board of Directors  
STOCKHOLDERS' EQUITY  
Shares granted 153,696