Restructuring - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Restructuring Cost and Reserve [Line Items]
Restructuring expense	$ 9.8	$ 12.9	$ 27.2
Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring expense	$ 0.0
Tansfer of Crawler Production to Shady Grove, PA
Restructuring Cost and Reserve [Line Items]
Restructuring expense		$ 2.0
Closure of Manitowoc, WI Facility
Restructuring Cost and Reserve [Line Items]
Restructuring expense			$ 2.8