SEGMENT INFORMATION - Reconciliation of Adjusted EBITDA to Net Loss (Details) - USD ($)	3 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting [Abstract]
Net income		$ 118,200,000	$ 188,000,000.0	$ 203,700,000
Add (subtract):
Income from discontinued operations, net of tax		(2,100,000)	(1,800,000)	(300,000)
Income tax expense		13,000,000.0	85,800,000	48,300,000
Interest expense, net		49,300,000	51,200,000	54,200,000
Depreciation expense		42,600,000	41,600,000	39,700,000
Amortization expense		124,100,000	119,700,000	124,200,000
EBITDA		345,100,000	484,500,000	469,800,000
Adjustments to reconcile to Adjusted EBITDA:
Restructuring expense		11,400,000	9,500,000	11,700,000
Inventory step-up		3,300,000	500,000	12,900,000
Acquisition and integration expense		16,800,000	10,600,000	14,200,000
Foreign exchange (gain) loss on internal debt		(9,700,000)	7,800,000	(16,600,000)
Debt refinancing costs		7,800,000	0	0
Goodwill impairment	$ 80,000,000	80,000,000	0	0
Kuprion Acquisition research and development charge		15,700,000	0	0
Adjustment of stock compensation previously not probable (Note 8)		0	1,300,000	23,900,000
Other, net		11,900,000	12,400,000	8,900,000
Adjusted EBITDA		$ 482,300,000	$ 526,600,000	$ 524,800,000