STOCKHOLDERS' EQUITY - Equity statements (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Increase (Decrease) in Stockholders' Equity
Balance at the beginning of the period	$ (2,178,300)	$ (1,789,500)	$ (2,287,000)	$ (2,858,200)	$ (1,789,500)	$ (2,858,200)
Net loss	(121,600)	(337,400)	(343,600)		(459,000)	(910,500)
Net loss	(121,600)		(344,000)	(567,200)	(459,000)	(911,200)
Other comprehensive income (loss)	(46,300)	(5,800)	21,400	(51,200)
100% liquidation of Baltics			(22,900)
Baltics noncontrolling capital contribution				(3,800)
Class A common stock, accrued dividend equivalent adjustment			(200)	(100)
Class A common stock issuance			989,200	581,600
Convertible Notes due 2026 stock conversion				606,500
Taxes paid for restricted unit withholdings		(52,200)
Stock-based compensation	19,400	6,600	8,400	5,400
Balance at the end of the period	(2,326,800)	(2,178,300)	(1,404,700)	(2,287,000)	$ (2,326,800)	(1,404,700)
Board of Director
Increase (Decrease) in Stockholders' Equity
Shares awarded					41,650
RSUs and PSUs vested					2,799,845
Mudrick Capital Management LP
Increase (Decrease) in Stockholders' Equity
Class A common stock issuance			230,400
Total AMC Stockholders' Equity (Deficit)
Increase (Decrease) in Stockholders' Equity
Balance at the beginning of the period			(2,309,400)	(2,885,100)		(2,885,100)
Net loss			(343,600)	(566,900)
Other comprehensive income (loss)			21,400	(51,000)
100% liquidation of Baltics			(900)
Baltics noncontrolling capital contribution				200
Class A common stock, accrued dividend equivalent adjustment			(200)	(100)
Class A common stock issuance			989,200	581,600
Convertible Notes due 2026 stock conversion				606,500
Stock-based compensation			8,400	5,400
Balance at the end of the period			(1,404,700)	(2,309,400)		(1,404,700)
Total AMC Stockholders' Equity (Deficit) | Mudrick Capital Management LP
Increase (Decrease) in Stockholders' Equity
Class A common stock issuance			230,400
Additional Paid-in Capital
Increase (Decrease) in Stockholders' Equity
Balance at the beginning of the period	4,811,800	4,857,500	3,657,100	2,465,600	$ 4,857,500	2,465,600
Baltics noncontrolling capital contribution				200
Class A common stock issuance			951,600	579,800
Convertible Notes due 2026 stock conversion				606,100
Taxes paid for restricted unit withholdings		(52,200)
Stock-based compensation	19,400	6,500	8,400	5,400
Balance at the end of the period	4,831,200	4,811,800	4,847,400	3,657,100	4,831,200	4,847,400
Additional Paid-in Capital | Mudrick Capital Management LP
Increase (Decrease) in Stockholders' Equity
Class A common stock issuance			230,300
Treasury Stock
Increase (Decrease) in Stockholders' Equity
Balance at the beginning of the period			$ (56,400)	$ (56,400)		$ (56,400)
Balance (in shares)			3,732,625	3,732,625		3,732,625
Class A common stock issuance			$ 56,400
Class A common stock issuance (In shares)			(3,732,625)
Balance at the end of the period				$ (56,400)
Balance (in shares)				3,732,625
Accumulated Other Comprehensive Income (Loss)
Increase (Decrease) in Stockholders' Equity
Balance at the beginning of the period	(33,900)	(28,100)	$ (12,300)	$ 38,700	(28,100)	$ 38,700
Other comprehensive income (loss)	(46,300)	(5,800)	21,400	(51,000)
100% liquidation of Baltics			(900)
Balance at the end of the period	(80,200)	(33,900)	8,200	(12,300)	(80,200)	8,200
Accumulated Earnings (Deficit)
Increase (Decrease) in Stockholders' Equity
Balance at the beginning of the period	(6,961,400)	(6,624,000)	(5,902,300)	(5,335,300)	(6,624,000)	(5,335,300)
Net loss	(121,600)	(337,400)	(343,600)	(566,900)
Class A common stock, accrued dividend equivalent adjustment			(200)	(100)
Class A common stock issuance			(19,300)
Balance at the end of the period	$ (7,083,000)	$ (6,961,400)	(6,265,400)	(5,902,300)	$ (7,083,000)	(6,265,400)
Noncontrolling Interests
Increase (Decrease) in Stockholders' Equity
Balance at the beginning of the period			22,400	26,900		26,900
Net loss			(400)	(300)
Other comprehensive income (loss)				(200)
100% liquidation of Baltics			(22,000)
Baltics noncontrolling capital contribution				(4,000)
Balance at the end of the period				22,400
Class A common stock
Increase (Decrease) in Stockholders' Equity
Balance (in shares)		513,979,100			513,979,100
Balance (in shares)	516,820,595				516,820,595
Class A common stock | Common Stock
Increase (Decrease) in Stockholders' Equity
Balance at the beginning of the period	$ 5,200	$ 5,100	$ 4,500	$ 1,800	$ 5,100	$ 1,800
Balance (in shares)	516,820,595	513,979,100	450,280,240	172,563,249	513,979,100	172,563,249
Class A common stock issuance			$ 500	$ 1,800
Class A common stock issuance (In shares)			54,550,000	187,066,293
Wanda conversion of Class B shares to Class A shares				$ 500
Wanda conversion of Class B shares to Class A shares (in shares)				46,103,784
Convertible Notes due 2026 stock conversion				$ 400
Convertible Notes due 2026 stock conversion (in shares)				44,422,860
Stock-based compensation		$ 100
Stock-based compensation (in shares)		2,841,495		124,054
Balance at the end of the period	$ 5,200	$ 5,200	$ 5,100	$ 4,500	$ 5,200	$ 5,100
Balance (in shares)	516,820,595	516,820,595	513,330,240	450,280,240	516,820,595	513,330,240
Class A common stock | Common Stock | Mudrick Capital Management LP
Increase (Decrease) in Stockholders' Equity
Class A common stock issuance			$ 100
Class A common stock issuance (In shares)			8,500,000
Class B common stock | Common Stock
Increase (Decrease) in Stockholders' Equity
Balance at the beginning of the period				$ 500		$ 500
Balance (in shares)				51,769,784		51,769,784
Wanda conversion of Class B shares to Class A shares				$ (500)
Wanda conversion of Class B shares to Class A shares (in shares)				(46,103,784)
Wanda forfeit and cancellation of Class B shares (in shares)				(5,666,000)