Earnings Per Share - Components of Basic and Diluted Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 29, 2023	Sep. 30, 2022	Sep. 29, 2023	Sep. 30, 2022
Numerator:
Income from continuing operations, net of tax	$ 21.5	$ 49.6	$ 117.2	$ 164.5
Income from discontinued operations, net of tax	0.0	(2.0)	0.0	5.1
Net income	$ 21.5	$ 47.6	$ 117.2	$ 169.6
Denominator:
Weighted-average common shares outstanding used in basic earnings per share (in shares)	168.2	163.1	165.3	162.7
Incremental common shares from:
Assumed exercise of dilutive options and vesting of dilutive restricted stock units (in shares)	2.1	2.8	2.4	3.5
Assumed conversion of the Notes (in shares)	4.9	11.0	8.6	12.2
Weighted average common shares outstanding used in diluted earnings (loss) per share (in shares)	175.2	176.9	176.3	178.4
Earnings per share:
Earnings from continuing operations - basic (in USD per share)	$ 0.13	$ 0.30	$ 0.71	$ 1.01
Earnings from continuing operations - diluted (in USD per share)	0.12	0.28	0.66	0.92
Earnings (loss) from discontinued operations - basic (in USD per share)	0	(0.01)	0	0.03
Earnings (loss) from discontinued operations - diluted (in USD per share)	0	(0.01)	0	0.03
Earnings - basic (in USD per share)	0.13	0.29	0.71	1.04
Earnings - diluted (in USD per share)	$ 0.12	$ 0.27	$ 0.66	$ 0.95