Company Contributions to Canadian and U.S. Advertising Funds (Detail) (CAD) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Apr. 01, 2012
Variable Interest Entity [Line Items]
Company contributions	5,941	5,500
Company Contribution
Variable Interest Entity [Line Items]
Company contributions	2,704	2,603
Non-owned Restaurants
Variable Interest Entity [Line Items]
Company contributions	3,237	2,897