XML 128 R100.htm IDEA: XBRL DOCUMENT v3.8.0.1
Intangible Assets - Additional Information (Detail) - CAD
CAD in Millions
Dec. 31, 2017
Dec. 31, 2016
Software [member]    
Disclosure of detailed information about intangible assets [line Items]    
Finance leases with a net book value CAD 16.5 CAD 23.0