Discontinued Operations - Major Components of Net Income from Discontinued Operations (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net income from discontinued operations, net of income taxes	$ 0.0	$ 30.9
Revenue, net	478.4	474.2
Income tax expense	$ 4.7	(3.3)
Discontinued Operations, Disposed of by Sale | S&D Disposition
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue, net		97.1
Cost of sales		71.1
Operating loss from discontinued operations		(0.5)
Gain on sale of discontinued operations		60.5
Net income from discontinued operations, before income taxes		59.8
Income tax expense		28.9
Net income from discontinued operations, net of income taxes		30.9
Income tax expense		28.5
Discontinued Operations, Disposed of by Sale | S&D Disposition | Related Party
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue, net		$ 1.0