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Acquisition and Distribution Agreements - Additional Information (Detail) - CAD
CAD in Millions
Nov. 01, 2016
Jan. 01, 2016
Standard Chartered's Mandatory Provident Fund and Occupational Retirement Schemes Ordinance [Member]    
Disclosure of detailed information about business combination [Line Items]    
Consideration paid in cash CAD 392  
Distribution partnership agreement term 15 years  
DBS Bank Ltd [Member] | Distribution networks [Member]    
Disclosure of detailed information about business combination [Line Items]    
Intangible assets recognized   CAD 536
Regional distribution agreement term   15 years