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Other Charges - Toronto Transition Costs and Other (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Analysis of income and expense [abstract] |  |  |
Toronto transition costs | $ 1.6 | $ 0.0 | $ 0.0
Integration and acquisition-related transaction costs | $ 4.5 | 1.4 |
Damage recoveries |  | $ 12.0 |

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- Definition Business Transition Costs + References No definition available. + Details
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- Definition The amount of acquisition-related costs for transactions recognised separately from the acquisition of assets and the assumption of liabilities in business combinations. [Refer: Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2017-01-01 -Paragraph B64 -Subparagraph m -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=3&date=2017-03-01&anchor=para_B64_m&doctype=Appendix&seq=2 -URIDate 2017-03-09 + Details
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- Definition The gain on settlements of litigation. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 98 -Subparagraph f -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_98_f&doctype=Standard -URIDate 2017-03-09 + Details
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