PROPERTY, PLANT AND EQUIPMENT (Tables)

12 Months Ended

Dec. 31, 2019

Disclosure of detailed information about property, plant and equipment [abstract]

Schedule of changes in property, plant and equipment

The following table outlines the changes to property, plant and equipment during the year ended December 31, 2018:

	Land		Buildings		Manufacturing equipment		Computer equipment and software		Furniture, office equipment and other		Construction in progress		Total
	$		$		$		$		$		$		$
Gross carrying amount
Balance as of December 31, 2017	12,110		127,073		627,400		42,502		2,705		37,835		849,625
Additions – separately acquired	—		—		—		—		—		74,712		74,712
Additions through business acquisitions	2,400		5,720		28,619		146		163		1,334		38,382
Assets placed into service	—		10,330		42,114		1,876		785		(55,105	)	—
Disposals	—		(180	)	(4,667	)	(230	)	(137	)	—		(5,214	)
Category reclassifications	(1,641	)	4,229		(2,588	)	—		—		—		—
Foreign exchange and other	(793	)	(1,755	)	(8,632	)	(243	)	(58	)	(1,107	)	(12,588	)
Balance as of December 31, 2018	12,076		145,417		682,246		44,051		3,458		57,669		944,917
Accumulated depreciation and impairments
Balance as of December 31, 2017	609		66,294		430,168		36,652		2,108		274		536,105
Depreciation	—		5,615		30,154		2,245		534		—		38,548
Impairments	370		820		3,649		—		—		84		4,923
Disposals	—		(118	)	(4,305	)	(229	)	(128	)	—		(4,780	)
Foreign exchange and other	—		(1,035	)	(5,662	)	(208	)	(48	)	(2	)	(6,955	)
Balance as of December 31, 2018	979		71,576		454,004		38,460		2,466		356		567,841
Net carrying amount as of December 31, 2018	11,097		73,841		228,242		5,591		992		57,313		377,076

The following table outlines the changes to property, plant and equipment during the year ended December 31, 2019:

	Land		Buildings		Manufacturing equipment		Computer equipment and software		Furniture, office equipment and other		Construction in progress		Total
	$		$		$		$		$		$		$
Gross carrying amount
Balance as of December 31, 2018	12,076		145,417		682,246		44,051		3,458		57,669		944,917
Adjustment on transition to IFRS 16	—		27,960		1,914		—		1,180		—		31,054
Additions – right-of-use assets	—		11,844		1,701		—		203		—		13,748
Additions – separately acquired	—		—		—		—		—		48,376		48,376
Assets placed into service	581		13,105		73,708		2,174		563		(90,131	)	—
Disposals	(360	)	(3,776	)	(8,889	)	(1,622	)	(136	)	(960	)	(15,743	)
Category reclassifications	—		(1,488	)	1,488		—		—		—		—
Foreign exchange and other	(105	)	769		3,445		121		26		(543	)	3,713
Balance as of December 31, 2019	12,192		193,831		755,613		44,724		5,294		14,411		1,026,065
Accumulated depreciation and impairments
Balance as of December 31, 2018	979		71,576		454,004		38,460		2,466		356		567,841
Depreciation (1)	—		11,208		36,810		2,326		1,121		—		51,465
Impairments	—		236		1,211		149		18		607		2,221
Impairment reversals	—		—		(751	)	—		—		—		(751	)
Disposals	(360	)	(2,501	)	(7,996	)	(1,595	)	(105	)	(960	)	(13,517	)
Foreign exchange and other	(10	)	536		2,849		113		10		(3	)	3,495
Balance as of December 31, 2019	609		81,055		486,127		39,453		3,510		—		610,754
Net carrying amount as of December 31, 2019	11,583		112,776		269,486		5,271		1,784		14,411		415,311

⁽¹⁾  The difference between the depreciation additions presented above and depreciation expense included in the Company’s consolidated earnings is the amortization of government grants recognized in deferred income for the purchase and construction of plant and equipment in the amount of $0.4 million as of December 31, 2019. When the assets are placed into service, the deferred income is recognized as a credit to depreciation expense through cost of sales on a systematic basis over the related assets’ useful lives. Refer to Note 14 for additional information on the Company's forgivable government loans.

Schedule of supplemental information regarding property, plant and equipment

Supplemental information regarding property, plant and equipment is as follows for the years ended:

	December 31, 2019		December 31, 2018
Interest capitalized to property, plant and equipment	$1,976		$2,277
Weighted average capitalization rates	7.56	%	7.64	%

Additional information on the carrying amount of the right-of-use assets by class of assets and related depreciation expense is as follows as of and for the year ended December 31, 2019:

	Buildings	Manufacturing equipment	Furniture, office equipment and other	Total
	$	$	$	$
Carrying amount	36,263	18,348	866	55,477
Depreciation expense	5,331	3,248	796	9,375

Additional information on the carrying amount of leases under finance lease obligations by class of assets and related depreciation expense is as follows as of and for the year ended December 31, 2018:

	Buildings	Manufacturing equipment	Furniture, office equipment and other	Total
	$	$	$	$
Carrying amount	1,526	18,233	301	20,060
Depreciation expense	451	2,263	315	3,029