BASIS OF PRESENTATION - Temporarily suspended or limited operations (Details) $ in Millions		1 Months Ended	3 Months Ended		6 Months Ended
	Jan. 01, 2021 item	Jan. 31, 2021 item	Jun. 30, 2021 item	Mar. 31, 2021 item	Jun. 30, 2022 USD ($)
Unusual or Infrequent Item, or Both [Line Items]
Increase (decrease) in total revenue | $					$ 1,359.1
Percentage Of Theatres Reopened	67.00%
Increase in number of screens			8,830
Number of Screens Operated			8,890
Percentage of theatres					100.00%
International markets.
Unusual or Infrequent Item, or Both [Line Items]
Percentage of theatres	30.00%	27.00%	95.00%
Number of Theatres	109	97	335
U.S.
Unusual or Infrequent Item, or Both [Line Items]
Number of Theatres Reopened	394
Percentage of theatres			100.00%	99.00%
Number of Theatres			593	585