Business Segment Information - Schedule of Income (Loss) from Continuing Operations by Reportable Segment (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Operating income (loss):
Operating income (loss)		$ 266.2	$ 256.5	$ 786.8	$ 622.2
Interest expense, net of interest income		(31.7)	(17.7)	(82.8)	(33.0)
Miscellaneous income (expense), net		3.6	2.6	0.1	13.2
Income before income taxes and losses of unconsolidated affiliates		238.1	241.4	704.1	602.4
Corporate and Other
Operating income (loss):
Operating income (loss)	[1],[2]	(52.5)	(45.6)	(198.3)	(121.1)
Operating Segments | Access Segment
Operating income (loss):
Operating income (loss)		207.9	229.9	662.5	576.6
Operating Segments | Defense Segment
Operating income (loss):
Operating income (loss)	[2],[3]	11.2	19.7	36.4	25.6
Operating Segments | Vocational Segment
Operating income (loss):
Operating income (loss)	[4]	$ 99.6	$ 52.5	$ 286.2	$ 141.1

[1] Results for the nine months ended September 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 have been reclassified to reflect the change in responsibility for Pratt Miller.

[3] Results for the three and nine months ended September 30, 2023 include a gain of $8.0 million on the sale of the snow removal apparatus business. See Note 3 for additional details on the Company's divestitures.

[4] Results for the nine months ended September 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.