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Securities (Tables) | 12 Months Ended
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Dec. 31, 2022
Securities |
Schedule of securities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
As at December 31: |  | 2022 |  | 2021
Short-term securities |  | ​ |  |  | ​ |
Equity securities at FVTPL, publicly traded | ​ | $ | 1,598 | ​ | $ | 4,939
Investment funds at FVTPL, unlisted | ​ | ​ | 1,675 | ​ | ​ | 2,761
Debt securities at FVTPL, unlisted | ​ | ​ | 774 | ​ | ​ | 770
Debt securities at FVTOCI, publicly traded | ​ |  | 26,246 | ​ |  | 10,786
​ | ​ | $ | 30,293 | ​ | $ | 19,256
Long-term securities | ​ | ​ | ​ | ​ | ​ | ​
Equity securities in an affiliate at FVTPL, unlisted | ​ | $ | 2,435 | ​ | $ | 3,625
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