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v3.3.1.900

Plant and equipment (Details) - CAD CAD in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Property, Plant and Equipment [Line Items] |  |  |
Cost | CAD 331,352 | CAD 332,829 |
Accumulated depreciation | 153,985 | 148,530 |
Net book value | 177,367 | 184,299 |
Assets under capital lease, cost | 115,798 | 101,606 |
Assets under capital lease, accumulated depreciation | 34,413 | 25,007 |
Assets under capital lease, net book value | 81,385 | 76,599 |
Total plant and equipment, cost | 447,150 | 434,435 |
Total accumulated depreciation | 188,398 | 173,537 |
Total plant and equipment, net book value | 258,752 | 260,898 |
Addition of plant and equipment by means of capital leases | 20,058 | 39,492 |
Heavy equipment |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Cost | 144,754 | 142,052 |
Accumulated depreciation | 46,292 | 42,292 |
Net book value | 98,462 | 99,760 |
Major component parts in use |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Cost | 117,042 | 112,645 |
Accumulated depreciation | 61,464 | 55,895 |
Net book value | 55,578 | 56,750 |
Other equipment |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Cost | 39,727 | 41,739 |
Accumulated depreciation | 19,580 | 18,758 |
Net book value | 20,147 | 22,981 |
Licensed motor vehicles |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Cost | 17,362 | 24,247 |
Accumulated depreciation | 15,388 | 20,763 |
Net book value | 1,974 | 3,484 |
Office and computer equipment |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Cost | 9,743 | 9,355 |
Accumulated depreciation | 8,643 | 8,216 |
Net book value | 1,100 | 1,139 |
Buildings |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Cost | 2,724 | 2,791 |
Accumulated depreciation | 2,618 | 2,606 |
Net book value | 106 | 185 |
Assets under capital lease |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Depreciation expense | 14,027 | 12,108 | CAD 6,694
Heavy equipment |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Assets under capital lease, cost | 105,580 | 91,519 |
Assets under capital lease, accumulated depreciation | 29,738 | 21,275 |
Assets under capital lease, net book value | 75,842 | 70,244 |
Other equipment |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Assets under capital lease, cost | 1,851 | 1,945 |
Assets under capital lease, accumulated depreciation | 484 | 291 |
Assets under capital lease, net book value | 1,367 | 1,654 |
Licensed motor vehicles |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Assets under capital lease, cost | 8,344 | 8,142 |
Assets under capital lease, accumulated depreciation | 4,186 | 3,441 |
Assets under capital lease, net book value | 4,158 | CAD 4,701 |
Computer Equipment |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Assets under capital lease, cost | 23 |  |
Assets under capital lease, accumulated depreciation | 5 |  |
Assets under capital lease, net book value | CAD 18 |  |

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- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.14) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land or leased assets). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.14) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The increase during the period in capital lease obligations due to entering into new capital leases. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
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- Definition Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6455314&loc=d3e45014-112735 + Details
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- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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