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Personnel expenses (Tables) | 12 Months Ended
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Dec. 31, 2018
Analysis of income and expense [abstract] |
Disclosure of detailed information on personnel expenses |
|  | December 31, 2018 |  |  | December 31, 2017 |
Salaries and employee benefits |  | $ | 46,381 |  |  | $ | 44,763 |
Share-based compensation (note 20) |  | 2,902 |  |  | 3,125 |
|  | $ | 49,283 |  |  | $ | 47,888 |

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