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Income and other taxes - Schedule of Unrecognized Tax Losses (Details) $ in Thousands | Dec. 31, 2018 USD ($)
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Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | $ 283,786
2019 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 6,955
2020 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 20,352
2027 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 125
2028 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 568
2029 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 4,536
2030 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 10,602
2031 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 7,809
2032 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 13,200
2033 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 5,535
2034 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 30,130
2035 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 37,226
2036 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 40,370
2037 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 35,803
2038 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 47,892
No Expiration |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 22,683
Canada |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 233,796
Canada | 2019 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 0
Canada | 2020 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 0
Canada | 2027 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 125
Canada | 2028 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 568
Canada | 2029 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 4,536
Canada | 2030 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 10,602
Canada | 2031 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 7,809
Canada | 2032 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 13,200
Canada | 2033 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 5,535
Canada | 2034 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 30,130
Canada | 2035 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 37,226
Canada | 2036 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 40,370
Canada | 2037 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 35,803
Canada | 2038 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 47,892
Canada | No Expiration |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 0
Colombia |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 3,490
Colombia | 2019 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 0
Colombia | 2020 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 0
Colombia | 2027 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 0
Colombia | 2028 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 0
Colombia | 2029 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 0
Colombia | 2030 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 0
Colombia | 2031 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 0
Colombia | 2032 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 0
Colombia | 2033 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 0
Colombia | 2034 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 0
Colombia | 2035 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 0
Colombia | 2036 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 0
Colombia | 2037 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 0
Colombia | 2038 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 0
Colombia | No Expiration |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 3,490
Nicaragua |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 46,500
Nicaragua | 2019 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 6,955
Nicaragua | 2020 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 20,352
Nicaragua | 2027 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 0
Nicaragua | 2028 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 0
Nicaragua | 2029 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 0
Nicaragua | 2030 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 0
Nicaragua | 2031 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 0
Nicaragua | 2032 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 0
Nicaragua | 2033 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 0
Nicaragua | 2034 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 0
Nicaragua | 2035 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 0
Nicaragua | 2036 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 0
Nicaragua | 2037 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 0
Nicaragua | 2038 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | 0
Nicaragua | No Expiration |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Unused tax losses for which no deferred tax asset recognised | $ 19,193

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