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, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Segment Reporting Information [Line Items]
Revenues	$ 2,066.0	$ 2,208.8	$ 4,011.7	$ 4,097.8
Access Equipment
Segment Reporting Information [Line Items]
Revenues	977.0	923.1	1,860.0	1,659.7
Access Equipment | Aerial Work Platforms
Segment Reporting Information [Line Items]
Revenues	451.5	450.9	891.2	809.1
Access Equipment | Telehandlers
Segment Reporting Information [Line Items]
Revenues	309.8	233.5	539.5	408.7
Access Equipment | Other
Segment Reporting Information [Line Items]
Revenues	215.7	238.7	429.3	441.9
Defense
Segment Reporting Information [Line Items]
Revenues	538.9	709.9	1,074.1	1,324.2
Fire & Emergency
Segment Reporting Information [Line Items]
Revenues	275.7	298.4	562.2	607.1
Commercial
Segment Reporting Information [Line Items]
Revenues	274.4	277.4	515.4	506.2
Commercial | Concrete Mixers
Segment Reporting Information [Line Items]
Revenues	104.6	113.4	189.7	210.7
Commercial | Refuse Collection
Segment Reporting Information [Line Items]
Revenues	143.4	137.4	272.7	241.8
Commercial | Other
Segment Reporting Information [Line Items]
Revenues	26.4	26.6	53.0	53.7
Corporate and Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues				0.6
Operating Segments
Segment Reporting Information [Line Items]
Revenues	2,066.0		4,011.7
Operating Segments | Access Equipment
Segment Reporting Information [Line Items]
Revenues	977.1	924.3	1,860.2	1,662.5
Operating Segments | Access Equipment | Aerial Work Platforms
Segment Reporting Information [Line Items]
Revenues	451.5	450.9	891.2	809.1
Operating Segments | Access Equipment | Telehandlers
Segment Reporting Information [Line Items]
Revenues	309.8	233.5	539.5	408.7
Operating Segments | Access Equipment | Other
Segment Reporting Information [Line Items]
Revenues	215.8	239.9	429.5	444.7
Operating Segments | Defense
Segment Reporting Information [Line Items]
Revenues	539.3	710.4	1,074.9	1,325.1
Operating Segments | Fire & Emergency
Segment Reporting Information [Line Items]
Revenues	276.5	302.5	564.4	615.0
Operating Segments | Commercial
Segment Reporting Information [Line Items]
Revenues	275.3	278.1	516.7	508.1
Operating Segments | Commercial | Concrete Mixers
Segment Reporting Information [Line Items]
Revenues	104.6	113.4	189.7	210.7
Operating Segments | Commercial | Refuse Collection
Segment Reporting Information [Line Items]
Revenues	143.4	137.4	272.7	241.8
Operating Segments | Commercial | Other
Segment Reporting Information [Line Items]
Revenues	27.3	27.3	54.3	55.6
Operating Segments | Corporate and Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues	(2.2)		(4.5)
Corporate, Non-segment | Corporate and Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues		(6.5)		(12.9)
Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues	(2.2)	(6.5)	(4.5)	(12.9)
Intersegment Eliminations | Access Equipment
Segment Reporting Information [Line Items]
Revenues	0.1	1.2	0.2	2.8
Intersegment Eliminations | Access Equipment | Other
Segment Reporting Information [Line Items]
Revenues	0.1	1.2	0.2	2.8
Intersegment Eliminations | Defense
Segment Reporting Information [Line Items]
Revenues	0.4	0.5	0.8	0.9
Intersegment Eliminations | Fire & Emergency
Segment Reporting Information [Line Items]
Revenues	0.8	4.1	2.2	7.9
Intersegment Eliminations | Commercial
Segment Reporting Information [Line Items]
Revenues	0.9	0.7	1.3	1.9
Intersegment Eliminations | Commercial | Other
Segment Reporting Information [Line Items]
Revenues	0.9	0.7	1.3	1.9
Intersegment Eliminations | Corporate and Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues	$ (2.2)	$ (6.5)	$ (4.5)	$ (13.5)