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Other income (expense) and finance costs
 12 Months Ended
Dec. 31, 2022
Analysis of income and expense [abstract]  
Other income (expense) and finance costs
18. Other income (expense) and finance costs
(a) Other income (expense)December 31, 2022December 31, 2021
Interest and other income$8,856 $2,742 
Gain on disposal of mining licenses— 7,296 
Flow-through shares renouncement — 3,702 
Asset retirement obligation provision for closed facilities(13)(1,566)
Gain (loss) on disposal of assets2,959 (815)
$11,802 $11,359 
(b) Finance costsDecember 31, 2022December 31, 2021
 Interest cost on senior notes due 2029 $31,385 $11,008 
 Interest cost on senior secured notes due 2024— 17,014 
 Interest cost on term loan— 2,456 
 Other interest and financing costs2,189 4,131 
Senior secured notes redemption premium— 21,400 
Amortization of discount and transaction costs due to early redemption of debt— 9,700 
 Loss on redemption option derivative (Note 16 (b))
4,429 2,685 
 Interest expense on lease liabilities1,642 2,003 
 Asset retirement obligation accretion1,980 1,388 
$41,625 $71,785