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Commitments, Contingencies and Guarantees (Tables) | 12 Months Ended
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Dec. 31, 2017
Other Provisions, Contingent Liabilities And Contingent Assets [Abstract] |
Disclosure Of Future Minimum Lease Payments | At December 31, 2017, we have future minimum lease payments as follows:
| Operating Leases |  | Finance Leases
2018 | $ | 33.2 |  |  | $ | 13.2 |
2019 | 25.7 |  |  | 2.0 |
2020 | 15.5 |  |  | 1.6 |
2021 | 9.2 |  |  | 1.1 |
2022 | 7.4 |  |  | 0.3 |
Thereafter | 25.4 |  |  | — |
Total future minimum lease payments | $ | 116.4 |  |  | 18.2 |
Less: amount representing interest |  |  | (0.5 | )
Present value of future minimum finance lease payments (note 12) |  |  | 17.7 |
Less: current portion of finance lease obligations |  |  | (12.9 | )
Long-term portion of finance lease obligations |  |  | $ | 4.8 |

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- Definition The disclosure of finance leases and operating leases by the lessee. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2019-01-01 -Name IAS -Number 17 -IssueDate 2017-01-01 -Paragraph 31 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=17&date=2017-03-02&anchor=para_31&doctype=Standard&book=B -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2019-01-01 -Name IAS -Number 17 -IssueDate 2017-01-01 -Paragraph 35 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=17&date=2017-03-02&anchor=para_35&doctype=Standard&book=B -URIDate 2017-03-09 + Details
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