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OTHER INCOME (EXPENSE)
9 Months Ended
Sep. 30, 2023
Other Income and Expenses [Abstract]  
OTHER INCOME (EXPENSE) OTHER INCOME (EXPENSE)
The following table includes the components of Other income (expense):
Three Months Ended September 30,Nine Months Ended September 30,
2023202220232022
Interest income$6,098 $5,344 $21,015 $9,143 
Gain (loss) on investments and on marketable security sales
8,437 5,940 19,839 11,527 
Change in fair value of marketable securities(555)(37)565 (3,836)
Gain (loss) on sale of mineral properties, plant, and equipment(560)(501)(1,610)(1,842)
Other(2,042)(1,593)(3,010)(8,603)
Total$11,378 $9,153 $36,799 $6,389