MAJOR SOURCES OF REVENUE (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Centerra
Major sources of revenue
Revenue	$ 186,039	$ 158,167	$ 180,543
Centerra | Revenue from Contract with Customer Benchmark | Customer Concentration Risk
Major sources of revenue
Percentage of total revenue	25.90%	26.10%	30.00%
Barrick
Major sources of revenue
Revenue	$ 84,961	$ 75,259	$ 140,421
Barrick | Revenue from Contract with Customer Benchmark | Customer Concentration Risk
Major sources of revenue
Percentage of total revenue	11.80%	12.40%	23.30%
Nevada Gold Mines
Major sources of revenue
Revenue	$ 79,473	$ 101,870	$ 57,730
Nevada Gold Mines | Revenue from Contract with Customer Benchmark | Customer Concentration Risk
Major sources of revenue
Percentage of total revenue	11.00%	16.80%	9.60%