BUSINESS SEGMENT INFORMATION - Net Sales and Income (Loss) from Operations by Segment (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Segment Reporting Information [Line Items]
Net sales	$ 1,120.5	$ 993.8	$ 3,200.1	$ 2,896.7
Income (loss) from operations	120.8	74.2	299.2	258.2
Operating Segments | AWP
Segment Reporting Information [Line Items]
Net sales	662.6	572.5	1,811.8	1,644.4
Income (loss) from operations	63.5	34.9	142.2	126.7
Operating Segments | MP
Segment Reporting Information [Line Items]
Net sales	457.9	418.7	1,391.3	1,237.7
Income (loss) from operations	66.8	57.1	210.8	178.3
Corporate and Other / Eliminations
Segment Reporting Information [Line Items]
Net sales	0.0	2.6	(3.0)	14.6
Income (loss) from operations	$ (9.5)	$ (17.8)	$ (53.8)	$ (46.8)