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MINING ASSET IMPAIRMENT AND INVENTORY WRITEDOWN (Notes)
 12 Months Ended
Dec. 31, 2014
MINING ASSET IMPAIRMENT AND INVENTORY WRITEDOWN [Abstract]  
Impairment of fixed assets
Impairment of fixed assets
The Company reviews fixed assets to assess recoverability from future operations whenever events and circumstances indicate that the carrying values may not be recoverable.  Impairment losses are recognized in operating results when expected undiscounted future cash flows are less than the carrying value of the asset.  Impairment losses are measured as the excess of the carrying value of the asset over the discounted expected future cash flows or the estimated fair value of the asset.

MINING ASSET IMPAIRMENT AND INVENTORY WRITEDOWN

In 2014, the Company recorded an asset impairment and inventory writedowns of $23.2 million and $16.7 million, respectively. The impairment was recorded on machinery, equipment and molds used to produce giant mining tires. Mining products are included in the Company's earthmoving/construction segment. In the second quarter of 2014, several large mining equipment manufacturers significantly decreased their sales forecast for mining equipment. The Company's sales of mining product were deteriorating at an accelerated pace. Therefore, the company tested mining related assets for impairment in the second quarter of 2014. The fair value of the mining equipment was determined using a cost and market approach. The inventory writedowns were to adjust the value of mining product inventory to estimated market value.