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INVENTORIES (Tables) | 12 Months Ended
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Dec. 31, 2016
Inventory Disclosure [Abstract] |
Schedule of activity in reserves for excess and obsolete inventory | The following table shows the activity in the reserves for excess and obsolete inventory (in thousands of dollars):
| For the Years Ended December 31,
| 2016 |  | 2015
Balance at beginning of period | $ | (168,105 | ) |  | $ | (136,748 | )
Provision for excess and obsolete inventory | (58,485 | ) |  | (35,165 | )
Disposal of unsaleable inventory | 30,161 |  |  | 24,046 |
Business acquisitions, foreign currency and other | 4,915 |  |  | (20,238 | )
Balance at end of period | $ | (191,514 | ) |  | $ | (168,105 | )

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