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INVENTORIES AND SUPPLIES | 3 Months Ended
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Mar. 31, 2018
Inventory Disclosure [Abstract] |
INVENTORIES AND SUPPLIES | INVENTORIES AND SUPPLIES Inventories and supplies consisted of the following (in thousands):
| March 31, 2018 |  | December 31, 2017
Oil and oil products | $ | 59,243 |  |  | $ | 58,142 |
Supplies and drums | 97,246 |  |  | 94,242 |
Solvent and solutions | 9,188 |  |  | 9,167 |
Modular camp accommodations | 2,247 |  |  | 1,826 |
Other | 13,514 |  |  | 12,635 |
Total inventories and supplies | $ | 181,438 |  |  | $ | 176,012 |
As of March 31, 2018 and December 31, 2017, other inventories consisted primarily of parts washer components, cleaning fluids, absorbents and automotive fluids, such as windshield washer fluid and antifreeze. Supplies and drums consist primarily of drums and containers as well as critical spare parts to support the Company's incinerator and re-refinery operations.

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -URI http://asc.fasb.org/topic&trid=2126998 + Details
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