Decommissioning And Restoration Liability (Tables)

12 Months Ended

Dec. 31, 2021

Disclosure Of Decommissioning And Restoration Liability [Abstract]

Disclosure of detailed information about decommissioning and restoration liability assumptions

The GK Mine decommissioning and restoration liability was calculated using the following assumptions as at December 31, 2021 and 2020:

		December 31, 2021		December 31, 2020
Expected undiscounted cash flows	$	84,128	$	61,558
Discount rate		1.42%		0.67%
Inflation rate		2.00%		2.00%
Periods		2030		2030

The Kennady North Project decommissioning and restoration liability was calculated using the following assumptions as at December 31, 2021 and 2020:

		December 31, 2021		December 31, 2020
Expected undiscounted cash flows	$	2,467	$	2,268
Discount rate		0.25%		0.25%
Inflation rate		2.00%		2.00%
Periods		2024		2024

Disclosure of detailed information about decommissioning and restoration liability activity

The continuity of the decommissioning and restoration liability at December 31, 2021 and 2020 is as follows:

	GK Mine		KNP		Total
Balance, at January 1, 2020	$	56,429	$	2,087	$	58,516
Change in estimate of discounted cash flows		13,086		278		13,364
Accretion recorded during the year		976		76		1,052
Balance, at December 31, 2020	$	70,491	$	2,441	$	72,932
Less: current portion of decommissioning and restoration liability		2,489		-		2,489
Non-current decommissioning and restoration liability, at December 31, 2020	$	68,002	$	2,441	$	70,443
Change in estimate of discounted cash flows		19,223		248		19,471
Accretion recorded during the year		704		6		710
Balance, at December 31, 2021	$	90,418	$	2,695	$	93,113
Less: current portion of decommissioning and restoration liability		721		-		721
Non-current decommissioning and restoration liability, at December 31, 2021	$	89,697	$	2,695	$	92,392