Revenue from Contracts with Customers (Details 1) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Net Sales	$ 214.0	$ 299.7	$ 466.1	$ 562.1
Sales Direct to Consumer
Disaggregation of Revenue [Line Items]
Net Sales	143.3	201.4	310.9	373.8
Sales to Distributors
Disaggregation of Revenue [Line Items]
Net Sales	70.7	98.3	155.2	188.3
Equipment
Disaggregation of Revenue [Line Items]
Net Sales	134.6	200.0	288.7	362.9
Parts and Consumables
Disaggregation of Revenue [Line Items]
PriorPeriodRevenueDisaggregationAdjustment		7.8		7.7
Net Sales	43.2	55.4	97.5	111.3
Specialty Surface Coatings
Disaggregation of Revenue [Line Items]
Net Sales	5.2	7.1	11.3	13.3
Services and Other
Disaggregation of Revenue [Line Items]
PriorPeriodRevenueDisaggregationAdjustment		3.8		5.3
Net Sales	31.0	37.2	68.6	74.6
Americas
Disaggregation of Revenue [Line Items]
Net Sales	136.3	189.5	298.9	350.3
EMEA
Disaggregation of Revenue [Line Items]
Net Sales	54.8	80.9	126.8	158.9
Asia Pacific
Disaggregation of Revenue [Line Items]
Net Sales	$ 22.9	$ 29.3	$ 40.4	$ 52.9