INVESTMENTS - Related Party Transactions (Details) - Equity Method Investment, Nonconsolidated Investee(s) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Related Party Transactions
Receivable due from related party	$ 5.5		$ 5.5		$ 2.6
Other revenues, Related party	6.5	$ 1.2	12.0	$ 1.8
Film exhibition costs, Related party	2.3	0.4	3.4	0.7
Operating expenses (income), Related Party	$ 0.0	$ (0.3)	$ 0.0	$ 0.1

For an unclassified balance sheet, amounts due from related parties including affiliates, employees, joint ventures, officers and stockholders, immediate families thereof, and pension funds.

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+ Details