Revenue from Contracts with Customers (Details 1) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Disaggregation of Revenue [Line Items]
Net Sales	$ 261.9	$ 280.7	$ 728.0	$ 842.8
Sales Direct to Consumer
Disaggregation of Revenue [Line Items]
Net Sales	177.3	189.7	488.2	563.5
Sales to Distributors
Disaggregation of Revenue [Line Items]
Net Sales	84.6	91.0	239.8	279.3
Equipment
Disaggregation of Revenue [Line Items]
Net Sales	167.6	190.0	456.3	552.9
Parts and Consumables
Disaggregation of Revenue [Line Items]
PriorPeriodRevenueDisaggregationAdjustment		20.7		4.9
Net Sales	52.7	46.9	150.2	158.2
Specialty Surface Coatings
Disaggregation of Revenue [Line Items]
Net Sales	5.3	6.9	16.6	20.2
Services and Other
Disaggregation of Revenue [Line Items]
PriorPeriodRevenueDisaggregationAdjustment		2.8		28.8
Net Sales	36.3	36.9	104.9	111.5
Americas
Disaggregation of Revenue [Line Items]
Net Sales	167.7	186.1	466.6	536.4
EMEA
Disaggregation of Revenue [Line Items]
Net Sales	69.5	69.7	196.3	228.6
Asia Pacific
Disaggregation of Revenue [Line Items]
Net Sales	$ 24.7	$ 24.9	$ 65.1	$ 77.8