Condensed Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 28, 2024	Sep. 30, 2023	Sep. 28, 2024	Sep. 30, 2023
Income Statement [Abstract]
Net sales	$ 1,087.5	$ 1,123.8	$ 3,235.1	$ 3,498.7
Cost of sales	683.1	712.6	2,078.3	2,245.6
Gross profit	404.4	411.2	1,156.8	1,253.1
Operating expenses
Distribution	25.2	27.8	74.7	85.0
Research and development	26.0	29.6	84.4	92.9
Selling	129.4	150.2	429.8	489.2
Administration	116.9	126.0	373.3	393.6
Impairment charges	16.2	0.0	50.3	0.0
Restructuring	16.8	15.5	98.1	25.7
Other operating (income) expense, net	(6.5)	0.0	47.5	(0.8)
Total operating expenses	324.0	349.1	1,158.1	1,085.6
Operating income (loss)	80.4	62.1	(1.3)	167.5
Interest expense, net	57.6	43.5	144.7	131.1
Other (income) expense, net	(4.1)	(0.6)	(0.5)	(9.6)
Loss on extinguishment of debt	5.1	0.0	5.2	0.0
Income (loss) from continuing operations before income taxes	21.8	19.2	(150.7)	46.0
Income tax (benefit) expense	39.4	3.8	(31.5)	22.7
Income (loss) from continuing operations	(17.6)	15.4	(119.2)	23.3
Loss from discontinued operations, net of tax	(3.4)	(1.2)	(8.1)	(3.7)
Net income (loss)	$ (21.0)	$ 14.2	$ (127.3)	$ 19.6
Basic
Continuing operations (in dollars per share)	$ (0.13)	$ 0.11	$ (0.87)	$ 0.17
Discontinued operations (in dollars per share)	(0.02)	(0.01)	(0.06)	(0.03)
Basic earnings (loss) per share (in dollars per share)	(0.15)	0.10	(0.93)	0.14
Diluted
Continuing operations (in dollars per share)	(0.13)	0.11	(0.87)	0.17
Discontinued operations (in dollars per share)	(0.02)	(0.01)	(0.06)	(0.03)
Diluted earnings (loss) per share (in dollars per share)	$ (0.15)	$ 0.10	$ (0.93)	$ 0.14
Weighted-average shares outstanding
Basic (in shares)	137.5	135.5	137.3	135.2
Diluted (in shares)	137.5	136.9	137.3	136.6