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, 2015 | 3,363 | 84,776 | 523,147 | 64,027 | 2,651 | 40,740 | 718,704 | |||||||||||||
Additions – separately acquired | — | — | — | — | — | 58,679 | 58,679 | |||||||||||||
Additions through business acquisitions | 2,583 | 1,908 | 5,083 | 21 | 46 | 9 | 9,650 | |||||||||||||
Assets placed into service | 250 | 6,570 | 47,603 | 815 | 122 | (55,360 | ) | — | ||||||||||||
Disposals | — | (534 | ) | (20,124 | ) | (23,439 | ) | (352 | ) | — | (44,449 | ) | ||||||||
Foreign exchange and other | (66 | ) | 225 | 1,608 | 219 | — | (75 | ) | 1,911 | |||||||||||
Balance as of December 31, 2016 | 6,130 | 92,945 | 557,317 | 41,643 | 2,467 | 43,993 | 744,495 | |||||||||||||
Accumulated depreciation and impairments | ||||||||||||||||||||
Balance as of December 31, 2015 | 609 | 57,146 | 404,552 | 56,285 | 2,027 | — | 520,619 | |||||||||||||
Depreciation | — | 4,209 | 22,802 | 2,235 | 156 | — | 29,402 | |||||||||||||
Impairments | — | — | 4,024 | 133 | 32 | 86 | 4,275 | |||||||||||||
Impairment reversals | — | — | (1,031 | ) | — | — | — | (1,031 | ) | |||||||||||
Disposals | — | (529 | ) | (19,927 | ) | (23,408 | ) | (345 | ) | — | (44,209 | ) | ||||||||
Foreign exchange and other | — | 246 | 1,504 | 215 | (4 | ) | — | 1,961 | ||||||||||||
Balance as of December 31, 2016 | 609 | 61,072 | 411,924 | 35,460 | 1,866 | 86 | 511,017 | |||||||||||||
Net carrying amount as of December 31, 2016 | 5,521 | 31,873 | 145,393 | 6,183 | 601 | 43,907 | 233,478 |
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 |
December 31, 2017 | December 31, 2016 | ||||
Interest capitalized to property, plant and equipment | $1,378 | $817 | |||
Weighted average capitalization rates | 3.02 | % | 2.64 | % |