LEASES - Schedule of Supplemental Cash Flow Information Related to Leases (Details) - USD ($) $ in Millions	5 Months Ended	7 Months Ended	12 Months Ended
	Dec. 31, 2023	Aug. 12, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash paid for amounts included in the measurement of lease liabilities:
Operating - operating cash flows	$ 30.1	$ 43.3	$ 76.2	$ 87.3
Finance - financing cash flows	2.2	2.5	4.3	2.3
Finance - operating cash flows	0.2	0.5	0.7	0.4
ROU lease assets obtained in the exchange for lease liabilities:
Operating leases	6.7	19.2	28.1	57.4
Finance leases	$ 0.6	$ 0.6	$ 7.4	$ 4.5