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OTHER INCOME (EXPENSES) (Tables) | 9 Months Ended
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Sep. 30, 2019
OTHER INCOME (EXPENSE) |
Schedule of other income (expenses) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended September 30, | ​ | Nine months ended September 30,
​ |  | 2019 |  | 2018 |  | 2019 |  | 2018
Unrealized and realized gain (loss) on investments (note 4) | ​ | $ | 3,220 | ​ | $ | (24) | ​ | $ | 4,972 | ​ | $ | (3,293)
Foreign currency gain | ​ | ​ | 1,616 | ​ | ​ | 1,159 | ​ | ​ | 1,242 | ​ | ​ | 3,568
Other income | ​ | ​ | 71 | ​ | ​ | — | ​ | ​ | 203 | ​ | ​ | 617
Loss on sale of assets | ​ | ​ | (134) | ​ | ​ | — | ​ | ​ | (134) | ​ | ​ | (99)
Total other income | ​ | $ | 4,773 | ​ | $ | 1,135 | ​ | $ | 6,283 | ​ | $ | 793

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- Definition Tabular disclosure of the components of non-operating income or non-operating expense that may include amounts earned from dividends, interest on securities, gains (losses) on securities sold, equity earnings of unconsolidated affiliates, net gain (loss) on sales of business, interest expense and other miscellaneous income or expense items. + References No definition available. + Details
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