Common Shares and Net Income (Loss) per Common Share - Schedule of Reconciliation of Numerator and Denominators of Basic and Diluted Net (Loss) Income Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 30, 2023	Sep. 30, 2023	Jul. 01, 2023	Apr. 01, 2023	Dec. 31, 2022	Oct. 01, 2022	Jul. 02, 2022	Apr. 02, 2022	Dec. 30, 2023	Dec. 31, 2022	Jan. 01, 2022
Numerator (in millions):
Continuing operations	$ 13.3	$ 33.7	$ 13.6	$ 3.2	$ 34.8	$ 15.1	$ 8.0	$ 0.8	$ 63.8	$ 58.7	$ 4.9
Discontinued operations	$ 164.3	$ (0.3)	$ 7.7	$ 2.6	$ 22.7	$ (13.8)	$ (30.5)	$ (7.5)	174.3	(29.1)	(8.1)
Net income (loss)									$ 238.1	$ 29.6	$ (3.2)
Basic Earnings Per Share:
Weighted average common shares outstanding - basic (in shares)									159,452	160,763	160,778
Continuing operations (In USD per share)	$ 0.08	$ 0.21	$ 0.09	$ 0.02	$ 0.22	$ 0.09	$ 0.05	$ 0	$ 0.40	$ 0.36	$ 0.03
Discontinued operations (In USD per share)	1.03	0	0.04	0.02	0.14	(0.08)	(0.19)	(0.04)	1.09	(0.18)	(0.05)
Net income (loss) (In USD per share)	1.11	0.21	0.13	0.04	0.36	0.01	(0.14)	(0.04)	$ 1.49	$ 0.18	$ (0.02)
Denominator (in thousands):
Weighted average common shares outstanding - basic (in shares)									159,452	160,763	160,778
Weighted average common shares outstanding - diluted (in shares)									160,619	161,885	160,778
Diluted Earnings Per Share:
Continuing operations (In USD per share)	0.08	0.21	0.09	0.02	0.22	0.09	0.05	0	$ 0.40	$ 0.36	$ 0.03
Discontinued operations (In USD per share)	1.03	0	0.04	0.02	0.14	(0.08)	(0.19)	(0.04)	1.08	(0.18)	(0.05)
Net income (loss) (In USD per share)	$ 1.11	$ 0.21	$ 0.13	$ 0.04	$ 0.36	$ 0.01	$ (0.14)	$ (0.04)	$ 1.48	$ 0.18	$ (0.02)
Performance-based RSUs
Denominator (in thousands):
Dilutive effect of awards (in shares)									467	445	0
Time-based RSUs
Denominator (in thousands):
Dilutive effect of awards (in shares)									462	416	0
Stock options
Denominator (in thousands):
Dilutive effect of awards (in shares)									238	261	0