Quarterly Results (Unaudited) - LIFO and FIFO (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Oct. 02, 2021	Jul. 03, 2021	Apr. 03, 2021	Dec. 31, 2020	Sep. 26, 2020	Jun. 27, 2020	Mar. 28, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Quarterly Financial Information Disclosure [Line Items]
Gross profit	$ 129.3	$ 95.8	$ 102.3	$ 104.4	$ 123.5	$ 92.1	$ 89.4	$ 90.5
Income from continuing operations, net of tax	4.4	13.9	17.7	23.0	20.5	19.5	19.3	14.5	$ 59.0	$ 73.8	$ 76.3
Less: Gain (loss) from discontinued operations, net of tax	2.0	316.4	44.2	3.8	5.3	3.1	8.2	8.6	366.4	25.2	(11.0)
Net income	$ 6.4	330.3	61.9	26.8	25.8	22.6	27.5	23.1	$ 425.4	$ 99.0	$ 65.3
Revision of prior period, reclassification, adjustment
Quarterly Financial Information Disclosure [Line Items]
Gross profit		1.5	0.5	0.0	1.5	(0.2)	0.5	0.5
Income from continuing operations, net of tax		1.1	0.4	0.0	1.1	(0.2)	0.4	0.4
Less: Gain (loss) from discontinued operations, net of tax		(2.1)	0.0	0.0	0.1	0.0	0.0	0.0
Net income		$ (1.0)	$ 0.4	$ 0.0	$ 1.2	$ (0.2)	$ 0.4	$ 0.4