STOCKHOLDERS' DEFICIT - At-The-Market Share Issuances (Details) - At-the-Market Offerings shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2023 USD ($) shares
AMC Preferred Equity Units
STOCKHOLDERS' EQUITY
Number of shares sold | shares	4.9
Common Stock And AMC Preferred Equity Units
STOCKHOLDERS' EQUITY
Gross proceeds	$ 80.3
Sales agents fees paid	2.0
Other third-party issuance costs	7.8
Payment to issuance cost to third party	$ 6.8