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Supplementary Cash Flow Information (Tables) | 9 Months Ended
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Sep. 30, 2022
Supplementary Cash Flow Information |
Schedule of Supplementary Cash Flow Information | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the three months ended September 30, | ​ | For the nine months ended September 30,
​ | ​ | 2022 | ​ | 2021 | ​ | 2022 | ​ | 2021
​ | ​ | (in thousands) | ​ | (in thousands)
Unrealized loss (gain) on gold and silver rounds | ​ | $ | 8 | ​ | $ | 55 | ​ | $ | (54) | ​ | $ | 86
Unrealized foreign currency exchange loss (gain) | ​ | ​ | 678 | ​ | ​ | (59) | ​ | ​ | 1,200 | ​ | ​ | 257
Unrealized (gain) loss on zinc zero cost collar | ​ | ​ | (157) | ​ | ​ | 144 | ​ | ​ | (2,276) | ​ | ​ | 144
Other | ​ | ​ | 4 | ​ | ​ | (106) | ​ | ​ | (164) | ​ | ​ | (12)
Total other operating adjustments | ​ | $ | 533 | ​ | $ | 34 | ​ | $ | (1,294) | ​ | $ | 475

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