Business Segment Information - Schedule of Income (Loss) from Continuing Operations by Reportable Segment (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Operating income (loss):
Operating income (loss)		$ 260.9	$ 234.9	$ 520.6	$ 365.7
Interest expense, net of interest income		(30.3)	(8.1)	(51.1)	(15.3)
Miscellaneous income (expense), net		(1.5)	4.8	(3.5)	10.6
Income before income taxes and losses of unconsolidated affiliates		229.1	231.6	466.0	361.0
Operating Segments | Access Segment
Operating income (loss):
Operating income (loss)		246.5	211.7	454.6	346.7
Operating Segments | Defense Segment
Operating income (loss):
Operating income (loss)	[1]	(39.9)	6.3	(28.6)	8.0
Operating Segments | Vocational Segment
Operating income (loss):
Operating income (loss)	[2]	106.5	60.5	186.6	88.6
Corporate, Non-segment
Operating income (loss):
Operating income (loss)		$ (52.2)	$ (43.6)	$ (92.0)	$ (77.6)

[1] Results for the three and six months ended June 30, 2024 include $51.6 million of intangible asset impairments. See Note 12 for additional details on the Company's goodwill and purchased intangible assets.

[2] Results for the six months ended June 30, 2023 include a charge of $13.3 million on the sale of the rear-discharge mixer business. See Note 3 for additional details on the Company's divestitures.