Business Segment Information - Schedule of Net Sales by Product Lines and Reportable Segments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Segment Reporting Information [Line Items]
Revenues	$ 2,846.9	$ 2,413.1	$ 5,390.7	$ 4,681.2
Access Segment
Segment Reporting Information [Line Items]
Revenues	1,406.9	1,328.3	2,644.4	2,521.5
Access Segment | Aerial Work Platforms
Segment Reporting Information [Line Items]
Revenues	675.6	664.9	1,266.6	1,266.9
Access Segment | Telehandlers
Segment Reporting Information [Line Items]
Revenues	428.6	390.8	802.0	732.2
Access Segment | Other
Segment Reporting Information [Line Items]
Revenues	302.7	272.6	575.8	522.4
Defense Segment
Segment Reporting Information [Line Items]
Revenues	596.9	497.8	1,131.5	1,010.6
Defense Segment | Defense
Segment Reporting Information [Line Items]
Revenues	560.6	497.8	1,095.2	1,010.6
Defense Segment | Delivery Vehicles
Segment Reporting Information [Line Items]
Revenues	36.3	0.0	36.3	0.0
Vocational Segment
Segment Reporting Information [Line Items]
Revenues	843.1	586.9	1,614.8	1,148.9
Vocational Segment | Fire Apparatus
Segment Reporting Information [Line Items]
Revenues	354.5	296.5	681.7	584.9
Vocational Segment | Refuse Collection
Segment Reporting Information [Line Items]
Revenues	176.9	157.9	324.2	299.8
Vocational Segment | Other
Segment Reporting Information [Line Items]
Revenues	311.7	132.5	608.9	264.2
Eliminations
Segment Reporting Information [Line Items]
Revenues	0.0	0.1	0.0	0.2
Operating Segments
Segment Reporting Information [Line Items]
Revenues	2,846.9	2,413.1	5,390.7	4,681.2
Operating Segments | Access Segment
Segment Reporting Information [Line Items]
Revenues	1,406.9	1,328.3	2,644.4	2,521.5
Operating Segments | Access Segment | Aerial Work Platforms
Segment Reporting Information [Line Items]
Revenues	675.6	664.9	1,266.6	1,266.9
Operating Segments | Access Segment | Telehandlers
Segment Reporting Information [Line Items]
Revenues	428.6	390.8	802.0	732.2
Operating Segments | Access Segment | Other
Segment Reporting Information [Line Items]
Revenues	302.7	272.6	575.8	522.4
Operating Segments | Defense Segment
Segment Reporting Information [Line Items]
Revenues	598.7	498.1	1,135.6	1,011.2
Operating Segments | Defense Segment | Defense
Segment Reporting Information [Line Items]
Revenues	562.4	498.1	1,099.3	1,011.2
Operating Segments | Defense Segment | Delivery Vehicles
Segment Reporting Information [Line Items]
Revenues	36.3	0.0	36.3	0.0
Operating Segments | Vocational Segment
Segment Reporting Information [Line Items]
Revenues	843.1	587.5	1,615.5	1,150.2
Operating Segments | Vocational Segment | Fire Apparatus
Segment Reporting Information [Line Items]
Revenues	354.5	296.5	681.7	584.9
Operating Segments | Vocational Segment | Refuse Collection
Segment Reporting Information [Line Items]
Revenues	176.9	157.9	324.2	299.8
Operating Segments | Vocational Segment | Other
Segment Reporting Information [Line Items]
Revenues	311.7	133.1	609.6	265.5
Operating Segments | Eliminations
Segment Reporting Information [Line Items]
Revenues	(1.8)	(0.8)	(4.8)	(1.7)
Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues	(1.8)	(0.8)	(4.8)	(1.7)
Intersegment Eliminations | Access Segment
Segment Reporting Information [Line Items]
Revenues	0.0	0.0	0.0	0.0
Intersegment Eliminations | Access Segment | Aerial Work Platforms
Segment Reporting Information [Line Items]
Revenues	0.0	0.0	0.0	0.0
Intersegment Eliminations | Access Segment | Telehandlers
Segment Reporting Information [Line Items]
Revenues	0.0	0.0	0.0	0.0
Intersegment Eliminations | Access Segment | Other
Segment Reporting Information [Line Items]
Revenues	0.0	0.0	0.0	0.0
Intersegment Eliminations | Defense Segment
Segment Reporting Information [Line Items]
Revenues	1.8	0.3	4.1	0.6
Intersegment Eliminations | Defense Segment | Defense
Segment Reporting Information [Line Items]
Revenues	1.8	0.3	4.1	0.6
Intersegment Eliminations | Defense Segment | Delivery Vehicles
Segment Reporting Information [Line Items]
Revenues	0.0	0.0	0.0	0.0
Intersegment Eliminations | Vocational Segment
Segment Reporting Information [Line Items]
Revenues	0.0	0.6	0.7	1.3
Intersegment Eliminations | Vocational Segment | Fire Apparatus
Segment Reporting Information [Line Items]
Revenues	0.0	0.0	0.0	0.0
Intersegment Eliminations | Vocational Segment | Refuse Collection
Segment Reporting Information [Line Items]
Revenues	0.0	0.0	0.0	0.0
Intersegment Eliminations | Vocational Segment | Other
Segment Reporting Information [Line Items]
Revenues	0.0	0.6	0.7	1.3
Intersegment Eliminations | Eliminations
Segment Reporting Information [Line Items]
Revenues	$ (1.8)	$ (0.9)	$ (4.8)	$ (1.9)