Restructuring Activities - Narratives (Details) $ in Millions		3 Months Ended	12 Months Ended
	Oct. 01, 2020 segment	Jun. 30, 2019 USD ($)	Dec. 31, 2020 USD ($) segment	Dec. 31, 2019 USD ($) segment	Dec. 31, 2018 USD ($)	Jul. 17, 2020 a
Restructuring Cost and Reserve
Restructuring charges			$ 13.6	$ 15.6	$ 4.3
Number of reportable segments (segment) | segment	4		4	4
Property, plant and equipment impairment and disposals				$ 5.6
Facility In Beasley Texas
Restructuring Cost and Reserve
Area of land (acres) | a						260
Lease Facility in Tulsa Oklahoma | Facility Closing
Restructuring Cost and Reserve
Restructuring charges			$ 2.7
Lease Facility in Tulsa Oklahoma | Scenario, Plan | Facility Closing
Restructuring Cost and Reserve
Restructuring charges			9.0
Operating Segments | Repair, Service & Leasing
Restructuring Cost and Reserve
Restructuring charges		$ (1.6)	$ 0.2	1.5	$ (0.1)
Property, plant and equipment impairment and disposals				$ 0.0