Business Segment Information - Schedule of Income (Loss) from Continuing operations by Product Lines and Reportable Segments (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Operating income (loss):
Operating income (loss)		$ 107.3	$ 104.2	$ 206.0	$ 448.8
Interest expense, net of interest income		(10.9)	(10.4)	(34.4)	(33.3)
Miscellaneous other expense		(6.8)	(4.1)	(20.8)	(0.6)
Income before income taxes and earnings (losses) of unconsolidated affiliates		89.6	89.7	150.8	414.9
Operating Segments | Access Equipment
Operating income (loss):
Operating income (loss)	[1]	113.2	30.7	190.1	224.2
Operating Segments | Defense
Operating income (loss):
Operating income (loss)		2.3	49.7	23.8	145.0
Operating Segments | Fire & Emergency
Operating income (loss):
Operating income (loss)		19.2	47.2	64.4	139.1
Operating Segments | Commercial
Operating income (loss):
Operating income (loss)	[2]	9.4	10.7	38.8	59.1
Corporate, Non-segment
Operating income (loss):
Operating income (loss)		$ (36.8)	$ (34.1)	$ (111.1)	$ (118.6)

[1] Results for the three and nine months ended September 30, 2022 include expense of $4.6 million to eliminate cumulative translation adjustments upon liquidation of foreign entities. Results for the nine months ended September 30, 2021 include a $3.5 million charge related to restructuring activities.

[2] Results for the three and nine months ended September 30, 2022 include a $2.1 million intangible asset impairment charge.