Environmental and other provisions (Tables)

12 Months Ended

Dec. 31, 2023

Disclosure of other provisions [abstract]

Disclosure of detailed information about changes in provisions [Table Text Block]

		Decommis- sioning, restoration and similar liabilities			Deferred share units3		Restricted share units1, 3			Performance share units3			Other2			Total
Balance, January 1, 2023	$	276,402		$	6,872	$	6,855		$	2,989		$	10,213		$	303,331
Net change in provision		(4,017	)		1,094		2,959			382			4,689			5,107
Copper Mountain, acquired provision		12,702			-		-			-			-			12,702
Disbursements		(2,069	)		-		(5,138	)		(1,075	)		(2,402	)		(10,684	)
Unwinding of discount (note 7f)		9,948			-		-			-			-			9,948
Effect of change in discount rate		18,520			-		-			-			-			18,520
Effect of foreign exchange		3,855			71		39			45			35			4,045
Effect of change in share price		-			623		373			239			-			1,235
Balance, December 31, 2023	$	315,341		$	8,660	$	5,088		$	2,580		$	12,535		$	344,204

		Decommis- sioning, restoration and similar liabilities			Deferred share units3			Restricted share units1,3			Performance share units3			Other2			Total
Balance, January 1, 2022	$	467,800		$	8,107		$	10,889		$	5,402		$	10,320		$	502,518
Net additional provisions made		13,440			1,184			3,866			239			3,918			22,647
Disbursements		(15,460	)		-			(6,232	)		(1,115	)		(3,633	)		(26,440	)
Unwinding of discount (note 7f)		8,498			-			-			-			-			8,498
Effect of change in discount rate		(184,508	)		-			-			-			-			(184,508	)
Effect of foreign exchange		(13,368	)		(386	)		(352	)		(287	)		(392	)		(14,785	)
Effect of change in share price		-			(2,033	)		(1,316	)		(1,250	)		-			(4,599	)
Balance, December 31, 2022	$	276,402		$	6,872		$	6,855		$	2,989		$	10,213		$	303,331

Disclosure of detailed information about provisions [Table Text Block]

December 31, 2023		Decommis- sioning, restoration and similar liabilities		Deferred share units		Restricted share units		Performance share units		Other		Total
Current (note 16)	$	1,370	$	8,660	$	2,147	$	727	$	9,388	$	22,292
Non-current		313,971		-		2,941		1,853		3,147		321,912
	$	315,341	$	8,660	$	5,088	$	2,580	$	12,535	$	344,204

December 31, 2022		Decommis- sioning, restoration and similar liabilities		Deferred share units		Restricted share units		Performance share units		Other		Total
Current (note 16)	$	4,162	$	6,872	$	4,836	$	1,736	$	6,485	$	24,091
Non-current		272,240		-		2,019		1,253		3,728		279,240
	$	276,402	$	6,872	$	6,855	$	2,989	$	10,213	$	303,331