Consolidated Statements of Income - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Statement [Abstract]
Net sales	$ 1,778.0	$ 1,845.4	$ 1,948.8
Cost of goods sold	(1,285.6)	(1,302.5)	(1,357.7)
Gross profit	492.4	542.9	591.1
Operating expenses:
Selling, general and administrative	(285.1)	(305.3)	(380.5)
Research and development	(51.0)	(56.5)	(49.0)
Adjustment to fair value of contingent consideration	15.9	(3.4)	0.0
Restructuring charge	(0.9)	0.0	0.0
Impairment of property, plant and equipment	(22.9)	0.0	0.0
Impairment of intangible assets	(19.1)	0.0	0.0
Profit on disposal of property, plant and equipment	0.2	0.2	0.0
Total operating expenses	(362.9)	(365.0)	(429.5)
Operating income	129.5	177.9	161.6
Other income/(expense), net	(0.6)	9.6	10.5
Pension scheme settlement charge	0.0	(155.6)	0.0
Interest income/(expense), net	9.2	9.3	2.3
Income before income tax expense	138.1	41.2	174.4
Income tax expense	(21.5)	(5.6)	(35.3)
Net income	$ 116.6	$ 35.6	$ 139.1
Earnings per share:
Basic	$ 4.69	$ 1.43	$ 5.6
Diluted	$ 4.67	$ 1.42	$ 5.56
Weighted average shares outstanding (in thousands):
Basic	24,880	24,932	24,851
Diluted	24,993	25,119	25,022