PROPERTY, PLANT AND EQUIPMENT

The following table outlines the changes to property, plant and equipment during the year ended December 31, 2017:



	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, 2016	6,130		92,945		557,317		41,643		2,467		43,993		744,495
Additions – separately acquired	—		—		—		—		—		82,510		82,510
Additions through business acquisitions	1,268		6,617		17,427		407		55		1,501		27,275
Assets placed into service	4,638		25,353		59,125		1,415		236		(90,767	)	—
Disposals	(229	)	(116	)	(15,260	)	(1,139	)	(140	)	—		(16,884	)
Foreign exchange and other	303		2,274		8,791		176		87		598		12,229
Balance as of December 31, 2017	12,110		127,073		627,400		42,502		2,705		37,835		849,625
Accumulated depreciation and impairments
Balance as of December 31, 2016	609		61,072		411,924		35,460		1,866		86		511,017
Depreciation	—		4,341		25,717		2,172		179		—		32,409
Impairments	—		—		208		—		2		274		484
Impairment reversals	—		—		(3	)	—		—		—		(3	)
Disposals	—		(82	)	(14,501	)	(1,138	)	(13	)	—		(15,734	)
Foreign exchange and other	—		963		6,823		158		74		(86	)	7,932
Balance as of December 31, 2017	609		66,294		430,168		36,652		2,108		274		536,105
Net carrying amount as of December 31, 2017	11,501		60,779		197,232		5,850		597		37,561		313,520

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

Capital expenditures incurred in the year ended December 31, 2018 were primarily to support the greenfield manufacturing facilities in India as well as capacity expansion at the Midland, North Carolina manufacturing facility and other growth initiatives. As of December 31, 2018, the Company had commitments to suppliers to purchase machinery and equipment totalling $16.3 million primarily to support the greenfield manufacturing facilities in India and other growth initiatives. It is expected that such amounts will be paid out in the next twelve months and will be funded by the Company's borrowings and cash flows from operating activities.

Capital expenditures incurred in the year ended December 31, 2017 were primarily to support the construction of the Midland, North Carolina manufacturing facility, the construction of the greenfield manufacturing facilities in India, the capacity expansion of stretch film production at the Danville, Virginia manufacturing facility and other growth initiatives and maintenance needs. As of December 31, 2017, the Company had commitments to suppliers to purchase machinery and equipment totalling $29.3 million primarily to support the construction of the greenfield manufacturing facilities in India, shrink film capacity expansion at the Tremonton, Utah manufacturing facility, capacity expansion at the Midland, North Carolina manufacturing facility and other growth initiatives.

During the year ended December 31, 2018, the loss on disposals amounted to 0.2 million ($0.3 million and 0.1 million loss on disposals in 2017 and 2016, respectively).

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



	December 31, 2018		December 31, 2017
Interest capitalized to property, plant and equipment	$2,277		$1,378
Weighted average capitalization rates	7.64	%	3.02	%