CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended	6 Months Ended
Jun. 29, 2024	Jul. 01, 2023	Jun. 29, 2024	Jul. 01, 2023
Income Statement [Abstract]
Revenue	$ 496.3	$ 455.3	$ 989.1	$ 1,020.3
Cost of goods sold	241.5	234.1	492.6	514.3
Gross profit	254.8	221.2	496.5	506.0
Operating expenses:
Selling, general and administrative	177.5	151.7	337.4	348.0
Research and development	49.0	40.2	96.8	90.7
Total operating expenses	226.5	191.9	434.2	438.7
Operating income	28.3	29.3	62.3	67.3
Non-operating loss	(8.4)	(4.5)	(17.5)	(16.3)
Income before provision for income taxes	19.9	24.8	44.8	51.0
Provision for income taxes	3.9	9.1	9.9	14.0
Net income	$ 16.0	$ 15.7	$ 34.9	$ 37.0
Net income per share:
Basic (in dollars per share)	$ 0.30	$ 0.30	$ 0.66	$ 0.70
Diluted (in dollars per share)	$ 0.29	$ 0.29	$ 0.64	$ 0.68
Weighted-average shares used in per share calculations:
Basic (in shares)	53.1	52.8	53.1	52.7
Diluted (in shares)	54.3	54.4	54.3	54.3

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(2)(d))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(2)(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 924
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 11.L)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479941/924-10-S99-1