Share capital - Disclosure of warrants issued narrative (Details) $ in Thousands |
12 Months Ended |
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Dec. 31, 2017
USD ($)
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| Disclosure of classes of share capital [line items] | |
| Share issue related cost | $ 10,780 |
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. No definition available.
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- Definition The amount of cost related to the issuance of shares. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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