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v3.19.1

Provision for Asset Retirement Obligation - Fuel Tanks (Tables) | 12 Months Ended
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Dec. 31, 2018
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Changes in the provision for asset retirement obligation | Changes in the provision for asset retirement obligation are as follows:
Balance as of December 31, 2015 |  |  | 74,716 |
Additions (new tanks) |  |  | 483 |
Expense with tanks removed |  |  | (2,785 | )
Accretion expense |  |  | 5,150 |
Balance as of December 31, 2016 |  |  | 77,564 |
Additions (new tanks) |  |  | 537 |
Expense with tanks removed |  |  | (15,432 | )
Accretion expense |  |  | 2,105 |
Balance as of December 31, 2017 |  |  | 64,774 |
Additions (new tanks) |  |  | 264 |
Expense with tanks removed |  |  | (12,752 | )
Accretion expense |  |  | 2,381 |
Balance as of December 31, 2018 |  |  | 54,667 |
Current |  |  | 4,382 |
Non-current |  |  | 50,285 |

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- Definition An entity shall disclose information about the assumptions it makes about the future, and other major sources of estimation uncertainty at the end of the reporting period, that have a significant risk of resulting in a material adjustment to the carrying amounts of assets and liabilities within the next financial year. + References No definition available. + Details
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- Definition Text block [abstract] + References No definition available. + Details
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