OPERATING SEGMENTS (Details) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($) segment	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
OPERATING SEGMENT
Number of reportable segments \| segment			2
Financial information by reportable operating segment
Revenues	$ 1,030.6	$ 1,347.9	$ 1,982.0	$ 2,302.3
Adjusted EBITDA	29.4	182.5	(2.2)	189.6
Capital expenditures	44.6	48.6	95.1	96.0
Long-term assets, net	7,519.2		7,519.2		$ 7,806.1
U. S. markets
Financial information by reportable operating segment
Revenues	815.9	1,087.4	1,505.0	1,791.9
Adjusted EBITDA	49.3	174.8	21.7	185.7
U. S. markets \| Operating Segments
Financial information by reportable operating segment
Capital expenditures	33.8	36.8	65.5	71.4
Long-term assets, net	5,632.3		5,632.3		5,795.6
International markets
Financial information by reportable operating segment
Revenues	214.7	260.5	477.0	510.4
Adjusted EBITDA	(19.9)	7.7	(23.9)	3.9
International markets \| Operating Segments
Financial information by reportable operating segment
Capital expenditures	10.8	$ 11.8	29.6	$ 24.6
Long-term assets, net	$ 1,886.9		$ 1,886.9		$ 2,010.5

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