Annual report pursuant to Section 13 and 15(d)

SUPPLEMENTAL CASH FLOWS INFORMATION (Details)

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SUPPLEMENTAL CASH FLOWS INFORMATION (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Supplemental cash flows disclosures      
Interest paid $ 72 $ 2,207 $ 6,433
Income taxes paid 196 1,786 1,018
Supplemental disclosure of non‑cash investing and financing activities      
Capital expenditures included in accounts payable and accrued liabilities 36,818 14,803 31,226
Non-cash purchases of property and equipment $ 0 $ 0 $ 0