SEGMENT INFORMATION - Reconciliation of Adjusted EBITDA to Net Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment Reporting [Abstract]
Net (loss) income attributable to common stockholders	$ (31.8)	$ 53.2	$ 41.0	$ 174.5
Add (subtract):
Net income attributable to non-controlling interests	0.1	0.1	0.0	0.6
Income from discontinued operations, net of tax	0.0	0.0	(2.9)	(1.8)
Income tax expense	15.3	16.5	53.4	60.4
Interest expense, net	13.3	12.3	37.0	39.6
Depreciation expense	11.8	10.6	31.4	31.5
Amortization expense	32.7	29.2	93.3	90.5
EBITDA	41.4	121.9	253.2	395.3
Adjustments to reconcile to Adjusted EBITDA:
Inventory step-up	0.0	0.0	0.0	0.5
Restructuring expense	2.1	2.9	6.3	6.1
Acquisition and integration expense	5.0	2.2	13.3	6.2
Foreign exchange loss (gain) on intercompany loans	6.5	2.5	(7.6)	3.2
Goodwill impairment	80.0	0.0	80.0	0.0
Kuprion Acquisition research and development charge	0.0	0.0	15.7	0.0
Adjustment of stock compensation previously not probable			0.0	1.3
Other, net	(0.9)	4.0	1.6	6.1
Adjusted EBITDA	$ 134.1	$ 133.5	$ 362.5	$ 418.7