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Leases | 12 Months Ended
--- | ---
Dec. 31, 2020
Leases [Abstract] |
Leases | LeasesThe Company has finance and operating leases for heavy equipment, shop facilities, vehicles and office facilities. These leases have lease terms of one to 15 years, with options to extend on certain leases for terms up to five years. a) Lease expenses and (income)
Year ended December 31, | 2020 |  | 2019
Short-term lease expense | $ | 14,555 |  |  | $ | 36,179 |
Operating lease expense | 4,740 |  |  | 4,435 |
Operating lease income | (8,118) |  |  | (3,074) |
The Company generates operating lease income from the sublease of certain office facilities and heavy equipment rentals. During the year ended December 31, 2020, depreciation of equipment under finance leases was $17,147 (December 31, 2019 - $26,416). b) Supplemental balance sheet information
| December 31, 2020 |  | December 31, 2019
Net book value of property, plant and equipment under finance leases | $115,942 |  | $139,140
Weighted-average remaining lease term (in years): |  |  |
Finance leases | 3.0 |  | 3.1
Operating leases | 8.1 |  | 8.3
Weighted-average discount rate: |  |  |
Finance leases | 3.66 | % |  | 3.94 | %
Operating leases | 4.79 | % |  | 4.80 | %
c) Maturity analysis The future minimum lease payments and receipts from non-cancellable operating leases as at December 31, 2020 for the periods shown are as follows:
| Payments |  | Receipts
For the year ending December 31, | Finance Leases |  | Operating Leases |  | Operating leases
2021 | $ | 28,969 |  |  | $ | 4,768 |  |  | $ | 8,179 |
2022 | 22,735 |  |  | 3,702 |  |  | 7,276 |
2023 | 13,942 |  |  | 2,413 |  |  | 6,121 |
2024 | 6,442 |  |  | 1,193 |  |  | 493 |
2025 and thereafter | 1,358 |  |  | 10,160 |  |  | — |
Total minimum lease payments | $ | 73,446 |  |  | $ | 22,236 |  |  | $ | 22,069 |
Less: amount representing interest | (3,974) |  |  | (4,114) |  |  |
Carrying amount of minimum lease payments | $ | 69,472 |  |  | $ | 18,122 |  |  |
Less: current portion of leases | (26,895) |  |  | (4,004) |  |  |
| $ | 42,577 |  |  | $ | 14,118 |  |  |
Leases | LeasesThe Company has finance and operating leases for heavy equipment, shop facilities, vehicles and office facilities. These leases have lease terms of one to 15 years, with options to extend on certain leases for terms up to five years. a) Lease expenses and (income)
Year ended December 31, | 2020 |  | 2019
Short-term lease expense | $ | 14,555 |  |  | $ | 36,179 |
Operating lease expense | 4,740 |  |  | 4,435 |
Operating lease income | (8,118) |  |  | (3,074) |
The Company generates operating lease income from the sublease of certain office facilities and heavy equipment rentals. During the year ended December 31, 2020, depreciation of equipment under finance leases was $17,147 (December 31, 2019 - $26,416). b) Supplemental balance sheet information
| December 31, 2020 |  | December 31, 2019
Net book value of property, plant and equipment under finance leases | $115,942 |  | $139,140
Weighted-average remaining lease term (in years): |  |  |
Finance leases | 3.0 |  | 3.1
Operating leases | 8.1 |  | 8.3
Weighted-average discount rate: |  |  |
Finance leases | 3.66 | % |  | 3.94 | %
Operating leases | 4.79 | % |  | 4.80 | %
c) Maturity analysis The future minimum lease payments and receipts from non-cancellable operating leases as at December 31, 2020 for the periods shown are as follows:
| Payments |  | Receipts
For the year ending December 31, | Finance Leases |  | Operating Leases |  | Operating leases
2021 | $ | 28,969 |  |  | $ | 4,768 |  |  | $ | 8,179 |
2022 | 22,735 |  |  | 3,702 |  |  | 7,276 |
2023 | 13,942 |  |  | 2,413 |  |  | 6,121 |
2024 | 6,442 |  |  | 1,193 |  |  | 493 |
2025 and thereafter | 1,358 |  |  | 10,160 |  |  | — |
Total minimum lease payments | $ | 73,446 |  |  | $ | 22,236 |  |  | $ | 22,069 |
Less: amount representing interest | (3,974) |  |  | (4,114) |  |  |
Carrying amount of minimum lease payments | $ | 69,472 |  |  | $ | 18,122 |  |  |
Less: current portion of leases | (26,895) |  |  | (4,004) |  |  |
| $ | 42,577 |  |  | $ | 14,118 |  |  |

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- Definition The entire disclosure for finance leases of lessee. Includes, but is not limited to, description of lessee's finance lease and maturity analysis of finance lease liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -URI http://asc.fasb.org/subtopic&trid=77888251 + Details
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- Definition The entire disclosure for lessor's operating leases. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph Note 1 -URI http://asc.fasb.org/extlink&oid=121580752&loc=d3e38371-112697 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph Note 3 -URI http://asc.fasb.org/extlink&oid=121580752&loc=d3e38371-112697 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -URI http://asc.fasb.org/subtopic&trid=77888252 + Details
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