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Revenue from Contracts with Customers (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2018 | Mar. 31, 2017
Disaggregation of Revenue [Line Items] |  |
Net Sales | $ 272,847 | $ 191,059
Sales Direct to Consumer |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 178,710 | 143,623
Sales to Distributors |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 94,137 | 47,436
Equipment |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 172,074 | 113,341
Parts and Consumables |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 57,441 | 42,803
Specialty Surface Coatings |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 36,877 | 28,234
Services and Other |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 6,455 | 6,681
Americas |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 162,638 | 142,770
Europe, Middle East and Africa |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 88,816 | 33,276
Asia Pacific |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | $ 21,393 | $ 15,013

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