Investment in Joint Venture (Tables) - Asanko Gold Mine (AGM) [Member]

12 Months Ended

Dec. 31, 2022

Disclosure of joint ventures [line items]

Disclosure of investment in joint venture using equity method [Table Text Block]

	December 31, 2022	December 31, 2021
	$	$
Balance, beginning of year	-	59,159
Company's share of the JV's net income (loss) for the year	46,517	(51,528	)
Impairment reversal (loss) on investment in JV	7,631	(7,631	)
Balance, end of year	54,148	-

Disclosure of operating and financial results of the JV [Table Text Block]

		2022		2021
	Note	$		$
Revenue	(i)	297,136		382,380
Production costs	(ii)	(179,849	)	(255,058	)
Depreciation and depletion		(30,767	)	(50,177	)
Royalties	(iii)	(14,867	)	(19,119	)
Income from mine operations		71,653		58,026
Impairment reversal (loss) on MPP&E	(iv)	63,200		(153,164	)
Exploration and evaluation expenditures		(10,536	)	(10,521	)
General and administrative expenses	(viii)	(20,753	)	(9,576	)
Income (loss) from operations		103,564		(115,235	)
Finance expense	(xii)	(6,471	)	(2,908	)
Finance income		801		275
Foreign exchange gain		5,329		3,396
Net income (loss) after tax for the year		103,223		(114,472	)
Company's share of net income (loss) of the JV for the year		46,517		(51,528	)

		December 31, 2022	December 31, 2021
	Note	$	$
Assets
Current assets
Cash and cash equivalents	(xiii)	91,271	49,211
Receivables		2,771	14,285
Inventories	(v)	54,003	75,696
Prepaid expenses and deposits		2,907	2,944
VAT receivable		6,235	6,296
		157,187	148,432
Non-current assets	(v),(vi),(vii)	180,640	145,888
Total assets		337,827	294,320
Liabilities
Current liabilities
Accounts payable and accrued liabilities		30,811	57,948
Lease liabilities		778	10,025
		31,589	67,973
Non-current liabilities
Lease liabilities		113	467
Long-term incentive plan liability		-	98
Asset retirement provisions	(ix)	58,148	81,028
		58,261	81,593
Total liabilities		89,850	149,566
Equity	(xi)	247,977	144,754
Total liabilities and equity		337,827	294,320

Disclosure of production costs of joint venture [Table Text Block]

	December 31, 2022 $		December 31, 2021 $
Raw materials and consumables	(57,265	)	(54,422	)
Salary and employee benefits	(27,649	)	(37,449	)
Contractors (net of deferred stripping costs)	(56,133	)	(135,244	)
Change in stockpile, gold-in-process and gold dore inventories	(20,867	)	(7,825	)
Insurance, government fees, permits and other	(17,935	)	(20,118	)
Total production costs	(179,849	)	(255,058	)

Disclosure of estimated recoverable amount of AGM CGU and its carrying value [Table Text Block]

	Asanko Gold Mine CGU
	$
Net present value of estimated LOM cash flows (18% discount rate)	146,517
Value beyond proven and probable reserves	28,000
Cost to sell (2% selling fee)	(3,490	)
Estimated recoverable amount of the AGM CGU	171,027
Carrying value of AGM CGU at December 31, 2022	107,827
Reversal of impairment on MPP&E for the year ended December 31, 2022	63,200

Disclosure of pricing assumption [Table Text Block]

Gold price assumption	2023	2024	2025-2027	Long-term	Weighted Average
Gold price (US$/oz)	$1,750	$1,750	$1,700	$1,650	$1,685

Disclosure of sensitivity analysis [Table Text Block]

Assumption	Sensitivity	Impact on recoverable amount (100% basis)
		Increase ($'millions)	Decrease ($'millions)
Gold price	+/- $50/oz	$31.2	$31.7
Discount rate	-/+ 1.0%	$9.2	$8.6
Value of mineral resources beyond proven and probable reserves	+/- $10/oz	$9.0	$9.0

Disclosure of summary of inventories held by the AGM of joint venture [Table Text Block]

	December 31, 2022	December 31, 2021
	$	$
Gold dore on hand	3,592	3,244
Gold-in-process	937	1,563
Ore stockpiles	23,802	51,470
Materials and spare parts	25,672	24,562
Total inventories	54,003	80,839
Less non-current inventories:
Ore stockpiles	-	(5,143	)
Total current inventories	54,003	75,696

Disclosure of movement in asset retirement obligation [Table Text Block]

	December 31, 2022		December 31, 2021
	$		$
Balance, beginning of year	81,028		72,693
Accretion expense	2,527		1,191
Change in estimate	(25,331	)	7,307
Reclamation undertaken during the year	(76	)	(163	)
Total asset retirement provisions, end of year	58,148		81,028

Disclosure of movement in preferred share investments [Table Text Block]

	December 31, 2022	December 31, 2021
	$	$
Balance, beginning of year	264,880	274,880
Distributions to partners during the year	-	(10,000	)
Balance, end of year	264,880	264,880

Disclosure of finance expenses incurred by the joint ventures [Table Text Block]

	December 31, 2022		December 31, 2021
	$		$
Premiums paid for hedging instruments	-		(381	)
Accretion charges on asset retirement provisions (note ix)	(2,527	)	(1,191	)
Interest and fees associated with RCF (note xiv)	(400	)	(761	)
Interest on lease liabilities	(207	)	(396	)
Withholding taxes	(3,134	)	-
Other	(203	)	(179	)
Total finance expense	(6,471	)	(2,908	)

Disclosure of cash flows of joint venture [Table Text Block]

	December 31, 2022		December 31, 2021
	$		$
Cash provided by (used in):
Operating activities	75,479		86,602
Investing activities	(16,452	)	(45,891	)
Financing activities	(15,590	)	(55,522	)
Impact of foreign exchange on cash and cash equivalents	(1,377	)	(232	)
Increase (decrease) in cash and cash equivalents during the year	42,060		(15,043	)
Cash and cash equivalents, beginning of year	49,211		64,254
Cash and cash equivalents, end of year	91,271		49,211