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SEGMENTS AND GEOGRAPHIC INFORMATION - Reconciliation of Net Income to Segment Adjusted EBITDA (Details) - USD ($) $ in Millions	1 Months Ended			3 Months Ended		6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Apr. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Segment Reporting Information [Line Items]
Loss before income taxes				$ (47.5)	$ (374.1)	$ (117.6)	$ (439.7)
Interest expense, net				(64.7)	(40.2)	(127.7)	(78.5)
Depreciation and amortization				46.6	52.5	91.6	108.5
Corporate Unallocated				22.5	17.3	49.0	43.4
Adjusted EBITDA Addbacks				3.0	338.2	10.1	345.8
Total Segment Adjusted EBITDA				89.3	74.1	160.8	136.5
Net gain on disposition of businesses and assets				(3.5)	(16.3)	(7.1)	(16.3)
Restructuring and other charges (Note 4)				4.0	1.5	13.4	5.2
Asset impairment charges or write-offs (Note 13)					1.3		1.6
Goodwill impairment charges (Note 10)					349.0		349.0
Other items				2.5	2.7	3.8	6.3
Gain on sale of businesses and other assets						7.2	16.5
Land, buildings and equipment in Matamoros, Mexico
Segment Reporting Information [Line Items]
Cash Consideration			$ 19.0
Gain on sale of businesses and other assets					14.4		14.4
Land, buildings and equipment in Bronderslev, Denmark and Belen, New Mexico
Segment Reporting Information [Line Items]
Cash Consideration		$ 4.7
Gain on sale of businesses and other assets						3.6
European emission certifications
Segment Reporting Information [Line Items]
Cash Consideration	$ 3.5
Corporate Unallocated
Segment Reporting Information [Line Items]
Interest expense, net				$ 64.7	$ 40.2	$ 127.7	$ 78.5

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