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REVENUE - Liquefaction services revenue (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 USD ($) $ / barrel | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($)
Disaggregation of Revenue [Line Items] |  |  |
Liquefaction services revenue | $ 430,604 | $ 143,537 | $ 80,257
Amortization of Day 1 gain | $ (38,610) | 24,498 | 26,644
Oil price per barrel | $ / barrel | 60 |  |
Contract with customer, liability, revenue recognized | $ 33,763 |  |
Derivative asset | 95,500 | 112,317 |
Base tolling fee |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Liquefaction services revenue | 119,677 | 0 |
Liquefaction Services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Liquefaction services revenue | 127,625 | 0 | $ 0
Amortization of deferred commissioning period billing | 2,467 | 0 |
Amortization of Day 1 gain | 5,817 | 0 |
Other | $ (336) | 0 |
Vessels - FLNG |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Derivative asset |  | $ 79,600 |

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