Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Jan. 01, 2022	Jan. 02, 2021	Dec. 28, 2019
Income Statement [Abstract]
Revenue, net	$ 2,073.3	$ 1,953.5	$ 1,795.4
Cost of sales	915.9	839.6	734.2
Gross profit	1,157.4	1,113.9	1,061.2
Selling, general and administrative expenses	1,034.3	1,006.6	962.2
Loss on disposal of property, plant and equipment, net	9.3	10.6	7.6
Acquisition and integration expenses	10.8	33.7	16.4
Goodwill and intangible asset impairment charges	0.0	115.2	0.0
Operating income (loss)	103.0	(52.2)	75.0
Other expense, net	27.9	18.7	3.7
Interest expense, net	68.8	81.6	77.6
Income (loss) from continuing operations before income taxes	6.3	(152.5)	(6.3)
Income tax expense	9.5	4.3	4.5
Net loss from continuing operations	(3.2)	(156.8)	(10.8)
Net income from discontinued operations, net of income taxes (Note 2)	0.0	25.1	13.7
Net (loss) income	$ (3.2)	$ (131.7)	$ 2.9
Basic:
Continuing operations (In USD per share)	$ (0.02)	$ (1.01)	$ (0.08)
Discontinued operations (In USD per share)	0	0.16	0.10
Net (loss) income (In USD per share)	(0.02)	(0.85)	0.02
Diluted:
Continuing operations (In USD per share)	(0.02)	(1.01)	(0.08)
Discontinued operations (In USD per share)	0	0.16	0.10
Net (loss) income (In USD per share)	$ (0.02)	$ (0.85)	$ 0.02
Weighted average common shares outstanding (in thousands)
Basic (in shares)	160,778	155,446	135,224
Diluted (in shares)	160,778	155,446	135,224