Acquisitions and Discontinued Operations - Discontinued Operations (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss from discontinued operations, net of benefit for income taxes of $0.5, $0.5, $1.1, and $1.8	$ (1.9)	$ (1.7)	$ (3.8)	$ (6.0)
Sale of Highway Products
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax	(2.4)	(2.2)	(4.9)	(7.8)
Loss from discontinued operations, net of benefit for income taxes of $0.5, $0.5, $1.1, and $1.8	$ (1.9)	$ (1.7)	$ (3.8)	$ (6.0)

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