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Other Current Liabilities (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Other Liabilities, Current [Abstract] |  |  |
Taxes, other than income taxes | $ 14,760 | $ 7,122 |
Warranty | 12,676 | 10,960 |
Deferred revenue | 5,815 | 2,366 |
Rebates | 13,466 | 11,102 |
Freight | 3,208 | 4,274 |
Severance and Restructuring | 4,267 | 394 |
Miscellaneous accrued expenses | 10,779 | 4,385 |
Other | 4,476 | 3,014 |
Total | 69,447 | 43,617 |
Changes in warranty reserves |  |  |
Beginning balance | 10,960 | 10,093 | $ 9,686
Product warranty provision | 12,124 | 12,413 | 11,719
Acquired Warranty Obligations | 1,208 | 42 | 0
Foreign currency | 274 | 82 | (207)
Claims paid | (11,890) | (11,670) | (11,105)
Ending balance | $ 12,676 | $ 10,960 | $ 10,093

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