Discontinued Operations - Schedule of Income From Discontinued Operations, Net of Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations, net of taxes		$ 34.6	$ 34.5	$ 21.2
Commercial and Industrial Lighting Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Provision (benefit) for income taxes	$ 19.0
Discontinued Operations, Disposed of by Sale | Commercial and Industrial Lighting Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales		29.1	509.4	503.5
Cost of goods sold		27.8	403.4	385.6
Gross profit		1.3	106.0	117.9
Selling & administrative expenses		17.3	88.5	85.1
Operating (Loss) income		(16.0)	17.5	32.8
Pre-tax gain on sale		73.9	0.0	0.0
Other expense		(1.5)	(4.1)	(4.0)
Income from discontinued operations before income taxes		56.4	13.4	28.8
Provision (benefit) for income taxes		21.8	(21.1)	7.6
Income from discontinued operations, net of taxes		$ 34.6	$ 34.5	$ 21.2