XML 131 R104.htm IDEA: XBRL DOCUMENT v3.10.0.1
Other Assets - Disclosure of Fair Value and Amortized Cost (Detail) - CAD ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Disclosure of investments held for self insured liabilities at fair value and amortized cost [line items]    
Fair Value $ 144.2 $ 147.1
Amortized Cost/Cost 148.8 146.9
Bonds [member]    
Disclosure of investments held for self insured liabilities at fair value and amortized cost [line items]    
Fair Value 103.0 97.7
Amortized Cost/Cost 103.8 98.6
Equity securities [member]    
Disclosure of investments held for self insured liabilities at fair value and amortized cost [line items]    
Fair Value 41.2 49.4
Amortized Cost/Cost $ 45.0 $ 48.3