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Segment Reporting (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 USD ($) | Sep. 30, 2015 USD ($) | Jun. 30, 2015 USD ($) | Mar. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Sep. 30, 2014 USD ($) | Jun. 30, 2014 USD ($) | Mar. 31, 2014 USD ($) | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($)
Segment Reporting [Abstract] |  |  |  |  |  |  |  |  |  |  |
Number of operating segments |  |  |  |  |  |  |  |  | 4 |  |
Number of reportable segments |  |  |  |  |  |  |  |  | 1 |  |
Number of customers exceeding ten percent of net sales |  |  |  |  |  |  |  |  | 0 |  |
Concentration Risk, Percentage |  |  |  |  |  |  |  |  | 10.00% |  |
Revenues from External Customers and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Net Sales | $ 205,853 | $ 204,802 | $ 215,404 | $ 185,740 | $ 216,277 | $ 202,643 | $ 219,084 | $ 183,979 | $ 811,799 | $ 821,983 | $ 752,011
Long-Lived Assets | 126,600 |  |  |  | 131,678 |  |  |  | 126,600 | 131,678 | 138,587
Equipment |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  | 499,634 | 500,141 | 444,773
Parts and consumables |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  | 175,697 | 182,845 | 176,442
Service and other |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  | 112,622 | 114,027 | 109,533
Specialty surface coatings |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  | 23,846 | 24,970 | 21,263
Americas |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  | 591,405 | 569,004 | 514,544
Long-Lived Assets | 110,842 |  |  |  | 103,958 |  |  |  | 110,842 | 103,958 | 106,409
Europe, Middle East, Africa |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  | 139,834 | 165,686 | 157,208
Long-Lived Assets | 11,100 |  |  |  | 24,051 |  |  |  | 11,100 | 24,051 | 28,296
Asia Pacific |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  | 80,560 | 87,293 | 80,259
Long-Lived Assets | $ 4,658 |  |  |  | $ 3,669 |  |  |  | $ 4,658 | $ 3,669 | $ 3,882

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