Condensed Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 28, 2025
Income Statement [Abstract]
Net sales	$ 468.3	$ 207.2
Cost of sales	281.7	95.1
Gross profit	186.6	112.1
Selling, general and administrative expenses	210.6	114.9
Combination, integration, and other related expenses	19.8	20.5
Research and development expenses	23.2	15.3
Restructuring credits, net	0.0	(2.0)
Operating loss	(67.0)	(36.6)
Interest expense	(51.0)	(32.6)
Interest income	5.4	4.1
Other income (expense), net	3.9	(11.9)
Loss from continuing operations before income taxes	(108.7)	(77.0)
Income tax expense (benefit)	4.8	(1.7)
Loss from continuing operations	(113.5)	(75.3)
Income from discontinued operations, net of income taxes	0.0	47.6
Net loss	$ (113.5)	$ (27.7)
Basic (loss) income per share (Note 7):
Loss from continuing operations (in dollars per share)	$ (2.87)	$ (3.82)
Income from discontinued operations (in dollars per share)	0	2.42
Net loss (in dollars per share)	$ (2.87)	$ (1.41)
Basic weighted-averaged shares outstanding (in shares)	39.6	19.7
Diluted (loss) income per share (Note 7):
Loss from continuing operations (in dollars per share)	$ (2.87)	$ (3.82)
Income from discontinued operations (in dollars per share)	0	2.42
Net loss (in dollars per share)	$ (2.87)	$ (1.41)
Diluted weighted-average shares outstanding (in shares)	39.6	19.7