PROPERTY, PLANT AND MINE DEVELOPMENT (Tables)

12 Months Ended

Dec. 31, 2020

PROPERTY, PLANT AND MINE DEVELOPMENT

Schedule of property, plant and mine development

					Mine
	Mining		Plant and		Development
	Properties		Equipment		Costs		Total
As at December 31, 2018	$	1,775,063	$	1,984,867	$	2,474,372	$	6,234,302
Additions		63,305		314,469		635,030		1,012,804
Impairment reversal (Note 23)		172,484		—		173,337		345,821
Disposals		(937)		(19,434)		—		(20,371)
Amortization		(152,160)		(300,027)		(116,704)		(568,891)
Transfers between categories		150,796		1,207,920		(1,358,716)		—
As at December 31, 2019	$	2,008,551	$	3,187,795	$	1,807,319	$	7,003,665
Additions		204,239		285,083		498,624		987,946
Disposals		—		(15,248)		—		(15,248)
Amortization		(180,007)		(348,993)		(121,945)		(650,945)
Transfers between categories		126,630		117,062		(243,692)		—
As at December 31, 2020	$	2,159,413	$	3,225,699	$	1,940,306	$	7,325,418
As at December 31, 2019
Cost	$	3,348,912	$	6,182,372	$	2,540,534	$	12,071,818
Accumulated amortization and impairments		(1,340,361)		(2,994,577)		(733,215)		(5,068,153)
Carrying value - December 31, 2019	$	2,008,551	$	3,187,795	$	1,807,319	$	7,003,665
As at December 31, 2020
Cost	$	3,680,992	$	6,528,830	$	2,798,411	$	13,008,233
Accumulated amortization and impairments		(1,521,579)		(3,303,131)		(858,105)		(5,682,815)
Carrying value - December 31, 2020	$	2,159,413	$	3,225,699	$	1,940,306	$	7,325,418

Schedule of geographical information of property, plant and mine development

	As at		As at
	December 31,		December 31,
	2020		2019
Canada	$	5,166,239	$	5,000,544
Finland		1,428,331		1,205,935
Sweden		13,812		13,812
Mexico		714,576		780,877
United States		2,460		2,497
Total property, plant and mine development	$	7,325,418	$	7,003,665