Consolidated Statements of Operations Parenthetical - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Discontinued Operation, Tax Effect of Discontinued Operation	$ (0.7)	$ (1.0)	$ (2.2)	$ (3.5)
Discontinued Operation, Tax Effect of Gain (Loss) from Disposal of Discontinued Operation	0.0	0.0	0.0	(1.4)
Sale of Highway Products
Discontinued Operation, Tax Effect of Discontinued Operation	$ (0.7)	$ (1.0)	$ (2.2)	$ (3.5)

Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.

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+ Details