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Impairment of Inventory and Long-Lived Assets for Discontinued Operations | 12 Months Ended
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Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract] |
Impairment of Inventory and Long-Lived Assets for Discontinued Operations | Impairment of Inventory and Long-Lived Assets for Discontinued Operations During the three months ended March 31, 2016, as a result of changes in the oil and gas industry that occurred since the beginning of 2016 and the corresponding impact on the Company’s business outlook, the Company evaluated the direction of its business activities. Crude oil prices, which appeared to have stabilized during the fourth quarter of 2015, fell further during the first quarter of 2016, decreasing approximately 21% from average prices seen in the fourth quarter of 2015. The U.S. drilling rig count declined from 698 at December 31, 2015 to 450 at April 1, 2016, a decline of 35.5%. Due to the decreased rig activity and its impact on management’s expectations for future market activity, the Company further refocused operations of its Drilling Technologies segment. The Company decided to exit the business of building and repairing motors in all domestic markets. In addition, changes in drilling technique, including further escalation of the move to a dominance of pad drilling, reduced the marketability of certain other inventory items. The focus of the Production Technologies segment shifted to its new technologies for electric submersible pumps for the oil and gas industry and for hydraulic pumping units. Inventory associated with older technologies for these items has been evaluated for impairment. As a result of these changes in focus and projected declines in asset utilization, the Company recorded a pre-tax impairment of inventories as noted below. Changes in the business climate noted above and increasing operating losses experienced within the Drilling Technologies and Production Technologies segments during the three months ended March 31, 2016, caused the Company to test asset groups within these two segments for recoverability. Recoverability of the carrying amount of the asset groups was based upon estimated future cash flows while taking into consideration various assumptions and estimates, including future use of the assets, remaining useful life of the assets, and eventual disposition of the assets. Undiscounted estimated cash flows of two asset groups associated with domestic operations in the Drilling Technologies segment did not exceed the carrying amount of the respective asset groups. Therefore, the Company performed an analysis of discounted future cash flows to determine the fair value of each of these two asset groups. As a result of this testing, the Company recorded a pre-tax impairment of long-lived assets as noted below. In addition, during the three months ended June 30, 2015, as a result of decreased rig activity and its impact on management’s expectations for future market activity, the Company refocused the Drilling Technologies segment to businesses and markets that had the best opportunity for profitable growth in the future. In addition, the Company shifted the focus of the Production Technologies segment to oil production markets and away from coal bed methane markets. As a result of these changes in focus and projected declines in asset utilization, the Company recorded pre-tax impairment charges as noted below. The Company recorded impairment charges during the three months ended March 31, 2016 and June 30, 2015, as follows (in thousands):
| Three months ended
| March 31, 2016 |  | June 30, 2015
Drilling Technologies: |  |  |
Inventories | $ | 12,653 |  |  | $ | 17,241 |
Long-lived assets: |  |  |
Property and equipment | 14,642 |  |  | 2,327 |
Intangible assets other than goodwill | 9,227 |  |  | — |
Production Technologies: |  |  |
Inventories | 3,913 |  |  | 804 |
Total impairment | $ | 40,435 |  |  | $ | 20,372 |
Based on the changes in the business climate discussed above and continuing operating losses experienced during the three months ended March 31, 2016, June 30, 2016, September 30, 2016, and December 31, 2016, goodwill within the Teledrift and Production Technologies reporting units was tested for impairment. However, no impairments of goodwill were recorded based upon this testing.

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- Definition The entire disclosure for the details of the charge against earnings resulting from the aggregate write down of all assets from their carrying value to their fair value. Disclosure may also include a description of the impaired asset and facts and circumstances leading to the impairment, amount of the impairment loss and where the loss is located in the income statement, method(s) for determining fair value, and the segment in which the impaired asset is reported. + References No definition available. + Details
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