Other operating expenses (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2018 |
Mar. 31, 2017 |
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| Details of other operating expenses [Abstract] | ||
| Leases and fees | $ (743) | $ (1,726) |
| Operation and maintenance | (32,444) | (25,897) |
| Independent professional services | (7,091) | (2,230) |
| Supplies | (7,391) | (7,176) |
| Insurance | (6,443) | (5,928) |
| Levies and duties | (9,909) | (9,688) |
| Other expenses | (2,173) | (1,770) |
| Total | $ (66,194) | $ (54,415) |
| X | ||||||||||
- References No definition available.
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- Definition The amount of expense relating to general and administrative activities of the entity. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The amount of expense arising from purchased insurance. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The amount of payments on leases and subleases recognised as an expense by the lessee. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of miscellaneous other operating expenses. [Refer: Other operating income (expense)] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The amount of expenses that the entity does not separately disclose in the same statement or note when the entity uses the 'nature of expense' form for its analysis of expenses. [Refer: Expenses, by nature] Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The amount of fees paid or payable for professional services. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The amount of expenses incurred for the day-to-day servicing of assets, which may include the cost of labour, consumables or small parts. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The amount of tax expense exclusive of income tax expense. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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