Revenue from Contracts with Customers (Tables)

12 Months Ended

Dec. 31, 2019

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue [Table Text Block]

The following tables illustrate the disaggregation of revenue by geographic area, groups of similar products and services and sales channels for the years ended December 31, 2019, 2018 and 2017 (in millions):

Net Sales by geographic area

	Years Ended
	December 31
	2019		2018		2017
Americas	$	722.4	$	691.0	$	640.3
Europe, Middle East and Africa	307.6		335.6		273.7
Asia Pacific	107.6		96.9		89.1
Total	$	1,137.6	$	1,123.5	$	1,003.1

Net Sales are attributed to each geographic area based on the end user country and are net of intercompany sales.

Net Sales by groups of similar products and services

	Years Ended
	December 31
	2019		2018		2017
Equipment	$	742.7	$	730.0	$	636.9
Parts and Consumables	221.0		222.3		202.5
Specialty Surface Coatings	25.7		29.8		31.4
Service and Other	148.2		141.4		132.3
Total	$	1,137.6	$	1,123.5	$	1,003.1

Net Sales by sales channel

	Years Ended
	December 31
	2019		2018		2017
Sales Direct to Consumer	$	750.9	$	735.2	$	674.5
Sales to Distributors	386.7		388.3		328.6
Total	$	1,137.6	$	1,123.5	$	1,003.1

Contract with Customer, Asset and Liability [Table Text Block]

The change in our sales incentive accrual balance for the years ended December 31, 2019 and 2018 was as follows:

	Years Ended
	December 31
	2019			2018
Beginning balance	$	16.7		$	13.5
Additions to sales incentive accrual	24.7			30.5
Contract payments	(27.7		)	(27.0		)
Foreign currency fluctuations	—			(0.3		)
Ending balance	$	13.7		$	16.7

Deferred Revenue, by Arrangement, Disclosure [Table Text Block]

The change in the deferred revenue balance for the years ended December 31, 2019 and 2018 was as follows:

	Years Ended
	December 31
	2019			2018
Beginning balance	$	8.5		$	7.8
Increase in deferred revenue representing our obligation to satisfy future performance obligations	26.0			14.7
Deferred revenue acquired from acquisition of Gaomei Cleaning Equipment Company	1.4			—
Decrease in deferred revenue for amounts recognized in Net Sales for satisfied performance obligations	(25.2		)	(13.8		)
Foreign currency fluctuations	—			(0.2		)
Ending balance	$	10.7		$	8.5

Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]

As of December 31, 2019, $6.8 million and $3.9 million of deferred revenue was reported in Other Current Liabilities and Other Liabilities, respectively, on our Consolidated Balance Sheets. Of this, we expect to recognize the following approximate amounts in Net Sales in the following periods:

2020	$	6.8
2021	2.1
2022	1.1
2023	0.5
2024	0.2
Thereafter	—
Total	$	10.7