Business Segment Information - Schedule of Net Sales by Geographical Segments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	$ 2,066.0	$ 2,208.8	$ 4,011.7	$ 4,097.8
North America
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	1,896.0	1,958.8	3,665.6	3,583.8
Europe, Africa and Middle East
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	91.1	111.4	184.0	271.0
Rest of the World
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	78.9	138.6	162.1	243.0
Operating Segments
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	2,066.0		4,011.7
Intersegment Eliminations
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	(2.2)	(6.5)	(4.5)	(12.9)
Intersegment Eliminations | North America
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	(2.2)	(6.5)	(4.5)	(12.9)
Access Equipment
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	977.0	923.1	1,860.0	1,659.7
Access Equipment | Operating Segments
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	977.1	924.3	1,860.2	1,662.5
Access Equipment | Operating Segments | North America
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	841.8	719.9	1,574.7	1,275.3
Access Equipment | Operating Segments | Europe, Africa and Middle East
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	67.1	75.7	148.1	158.5
Access Equipment | Operating Segments | Rest of the World
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	68.2	128.7	137.4	228.7
Access Equipment | Intersegment Eliminations
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	0.1	1.2	0.2	2.8
Defense
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	538.9	709.9	1,074.1	1,324.2
Defense | Operating Segments
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	539.3	710.4	1,074.9	1,325.1
Defense | Operating Segments | North America
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	521.5	682.4	1,045.8	1,233.6
Defense | Operating Segments | Europe, Africa and Middle East
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	17.4	25.4	28.4	88.4
Defense | Operating Segments | Rest of the World
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	0.4	2.6	0.7	3.1
Defense | Intersegment Eliminations
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	0.4	0.5	0.8	0.9
Fire & Emergency
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	275.7	298.4	562.2	607.1
Fire & Emergency | Operating Segments
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	276.5	302.5	564.4	615.0
Fire & Emergency | Operating Segments | North America
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	264.4	287.4	539.8	584.2
Fire & Emergency | Operating Segments | Europe, Africa and Middle East
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	5.9	9.8	5.9	23.1
Fire & Emergency | Operating Segments | Rest of the World
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	6.2	5.3	18.7	7.7
Fire & Emergency | Intersegment Eliminations
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	0.8	4.1	2.2	7.9
Commercial
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	274.4	277.4	515.4	506.2
Commercial | Operating Segments
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	275.3	278.1	516.7	508.1
Commercial | Operating Segments | North America
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	270.5	275.6	509.8	503.6
Commercial | Operating Segments | Europe, Africa and Middle East
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	0.7	0.5	1.6	1.0
Commercial | Operating Segments | Rest of the World
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	4.1	2.0	5.3	3.5
Commercial | Intersegment Eliminations
Revenues From External Customers And Long Lived Assets [Line Items]
Revenues	$ 0.9	$ 0.7	$ 1.3	$ 1.9