INCOME TAXES Reconciliation of Valuation Allowance (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
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| Movement in Valuation Allowances and Reserves [Roll Forward] | |||
| Balance at beginning of period | $ 21,575 | $ 12,650 | $ 806 |
| Increases to state valuation allowance | 10,010 | 6,768 | 434 |
| Increases due to consolidation of Aeróleo | 0 | 0 | 11,285 |
| Increases due to foreign valuation allowances | 7,578 | 2,157 | 125 |
| Decrease due to Brazilian PERT Program | (4,196) | 0 | 0 |
| Balance at end of period | $ 34,967 | $ 21,575 | $ 12,650 |
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- Definition Valuation Allowances and Reserves, Additions Due to Consolidation No definition available.
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- Definition Valuation Allowances and Reserves, Additions Due to Foreign Valuation Allowances No definition available.
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- Definition Valuation Allowances and Reserves, Additions for State Valuation Allowance No definition available.
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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