CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 28, 2025	Jun. 29, 2024	Jun. 28, 2025	Jun. 29, 2024
Total revenue	$ 370.9	$ 343.9	$ 742.9	$ 683.5
Cost of goods sold	137.6	136.6	275.6	269.6
Gross profit	233.3	207.3	467.3	413.9
Operating expenses:
Selling, general and administrative	138.9	126.3	258.3	242.0
Research and development	29.9	39.1	63.8	76.8
Litigation settlements	0.0	0.0	2.7	0.0
Total operating expenses	168.8	165.4	324.8	318.8
Operating income	64.5	41.9	142.5	95.1
Non-operating loss	(9.1)	(11.1)	(18.8)	(22.7)
Income from continuing operations before provision for income taxes	55.4	30.8	123.7	72.4
Provision for income taxes	10.5	6.0	31.6	15.5
Net income from continuing operations, net of tax	44.9	24.8	92.1	56.9
Net income (loss) from discontinued operations, net of tax - (Note 18)	6.4	(8.8)	(211.5)	(22.0)
Net income (loss)	$ 51.3	$ 16.0	$ (119.4)	$ 34.9
Net income (loss) per share:
Basic income per share - continuing operations (in dollars per share)	$ 0.83	$ 0.47	$ 1.70	$ 1.07
Basic income (loss) per share - discontinued operations (in dollars per share)	0.12	(0.17)	(3.91)	(0.41)
Basic income (loss) income per share (in dollars per share)	0.95	0.30	(2.21)	0.66
Diluted income per share - continuing operations (in dollars per share)	0.82	0.46	1.68	1.05
Diluted income (loss) per share - discontinued operations (in dollars per share)	0.12	(0.16)	(3.85)	(0.41)
Diluted income (loss) income per share (in dollars per share)	$ 0.94	$ 0.30	$ (2.17)	$ 0.64
Weighted-average shares used in per share calculations:
Basic (in shares)	54.3	53.1	54.1	53.1
Diluted (in shares)	54.8	54.3	54.9	54.3
Nonrelated Party
Total revenue	$ 345.1	$ 318.8	$ 685.3	$ 627.8
Related Party
Total revenue	$ 25.8	$ 25.1	$ 57.6	$ 55.7