Discontinued Operations - Narrative (Details) - Discontinued Operations, Disposed of by Sale - Commercial and Industrial Lighting business - USD ($) $ in Millions		3 Months Ended
Feb. 01, 2022	Mar. 31, 2022	Mar. 31, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash purchase price	$ 350.0
Administrative and operational services for a period	12 months
Income from service		$ 2.8
Pre-tax transaction and separation costs		2.1
Pre-tax gain on the disposal		$ 88.5	$ 0.0

Discontinued Operations, Transaction And Separation Costs

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Disposal Group, Including Discontinued Operation, Administrative And Operational Service Period

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Disposal Group, Including Discontinued Operation, Gain (Loss) On Disposal of Business

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Disposal Group, Including Discontinued Operation, Income From Transition Services Agreement

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Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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