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