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SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (Table) | 12 Months Ended
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Dec. 31, 2017
Valuation and Qualifying Accounts [Abstract] |
SummaryOfValuationAllowanceTextBlock |
|  |  |  | Additions |  |  |  |  |  |  |  |
Description |  | Balance at Beginning of Period |  | Charged to Costs and Expenses |  | Charged to Other Accounts |  |  |  | Deductions |  |  |  | Balance at End of Period
Deducted from assets to which they apply: |  |  |  |  |  |  |  |  |  |  |  |
December 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Tax valuation allowance |  | 17,776 |  |  | 1,471 |  |  | 125 |  |  | (1) |  | 7,050 |  |  | (3) |  | 12,322 |
Total |  | $ | 17,776 |  |  | $ | 1,471 |  |  | $ | 125 |  |  |  |  | $ | 7,050 |  |  |  |  | $ | 12,322 |
December 31, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Tax valuation allowance |  | 17,895 |  |  | 1,951 |  |  | (181 | ) |  | (1) |  | 1,889 |  |  | (2) |  | 17,776 |
Total |  | $ | 17,895 |  |  | $ | 1,951 |  |  | $ | (181 | ) |  |  |  | $ | 1,889 |  |  |  |  | $ | 17,776 |
December 31, 2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Tax valuation allowance |  | 23,478 |  |  | 2,605 |  |  | (299 | ) |  | (1) |  | 7,889 |  |  |  |  | 17,895 |
Total |  | $ | 23,478 |  |  | $ | 2,605 |  |  | $ | (299 | ) |  |  |  | $ | 7,889 |  |  |  |  | $ | 17,895 |
(1) Primarily foreign currency translation adjustments. (2) Capital loss on sale of upstream oil and gas business. (3) $4.3 million relates to the reduction of the U.S. corporate income tax rate due to the Tax Act.

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- Definition Tabular disclosure of valuation allowances to reduce deferred tax assets to net realizable value, including identification of the deferred tax asset more likely than not will not be fully realized and the corresponding amount of the valuation allowance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
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- References No definition available. + Details
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