Geographical Disclosure (Details) - CAD CAD in Millions	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Disclosure of geographical areas [line items]
Revenue	CAD 2,830.9	CAD 2,184.6
U.S. Foreign Operations
Disclosure of geographical areas [line items]
Non-current assets	2,740.0	2,190.0
Revenue	CAD 373.1	CAD 213.9

The income arising in the course of an entity's ordinary activities. Income is increases in economic benefits during the accounting period in the form of inflows or enhancements of assets or decreases of liabilities that result in an increase in equity, other than those relating to contributions from equity participants.

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+ Details