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PRODUCT WARRANTY COSTS (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Changes in the carrying amount of product warranty accruals |  |  |  |
Balance at beginning of year |  | $ 19,778 | $ 22,029 | $ 21,053
Accruals for warranties |  | 17,094 | 8,897 | 9,901
Settlements |  | (16,211) | (11,403) | (11,500)
Standard And Extended Product Warranty Accrual Foreign Currency Translation Gain (Loss) and Other Adjustments | [1] | (11) | 255 | 2,575
Balance at end of year |  | $ 20,650 | $ 19,778 | 22,029
Air Liquide Welding [Member] |  |  |  |
Changes in the carrying amount of product warranty accruals |  |  |  |
Standard And Extended Product Warranty Accrual Foreign Currency Translation Gain (Loss) and Other Adjustments |  |  |  | $ 2,299
[1] | At December 31, 2017, Foreign currency translation and other adjustments includes $2,299 for an acquired liability related to the Air Liquide Welding acquisition as discussed in Note 4 to the consolidated financial statements.

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