Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Millions	Total	Common Stock	Treasury Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss
Balance, beginning of period at Dec. 31, 2024	$ 2,934.8	$ 1.7	$ (50.5)	$ 3,842.1	$ (487.4)	$ (371.1)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock-based award activity	7.9			7.9
Purchase of treasury shares	(22.6)		(22.6)
Net income	18.0				18.0
Other comprehensive income (loss)	98.0					98.0
Balance, end of period at Mar. 28, 2025	3,036.1	1.7	(73.1)	3,850.0	(469.4)	(273.1)
Balance, beginning of period at Dec. 31, 2025	3,106.3	1.8	(224.5)	3,882.6	(440.4)	(113.2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock-based award activity	13.4	0.0		13.4
Purchase of treasury shares	(49.0)		(49.0)
Net income	38.7				38.7
Other comprehensive income (loss)	(29.9)					(29.9)
Balance, end of period at Apr. 03, 2026	$ 3,079.5	$ 1.8	$ (273.5)	$ 3,896.0	$ (401.7)	$ (143.1)