Property, Plant and Equipment - Components of property, plant and equipment (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Property, Plant and Equipment
Total cost	$ 794.5	$ 821.1
Less accumulated depreciation	(472.3)	(462.3)
Property, plant and equipment — net	322.2	358.8
Land
Property, Plant and Equipment
Total cost	18.3	19.4
Building and Improvements
Property, Plant and Equipment
Total cost	195.5	203.4
Machinery, Equipment and Tooling
Property, Plant and Equipment
Total cost	291.3	298.9
Furniture and Fixtures
Property, Plant and Equipment
Total cost	13.9	14.5
Computer Hardware and Software
Property, Plant and Equipment
Total cost	128.1	125.6
Rental cranes
Property, Plant and Equipment
Total cost	137.2	144.2
Construction in Progress
Property, Plant and Equipment
Total cost	$ 10.2	$ 15.1