Summary Of Effect Of Derivative Instruments On Consolidated Statement Of Comprehensive Income (Detail) (CAD) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 28, 2014	Sep. 29, 2013	Sep. 28, 2014	Sep. 29, 2013
Derivative Instruments, Gain (Loss) [Line Items]
Amount of net (gain) loss reclassified to earnings	47	(2,068)	(3,654)	(1,027)
Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in OCI	5,356	(10,686)	(553)	(2,607)
Amount of gain (loss) recognized in OCI, Income tax effect	(1,422)	915	(1,218)	(1,226)
Amount of gain (loss) recognized in OCI, Net of income taxes	3,934	(9,771)	(1,771)	(3,833)
Amount of net (gain) loss reclassified to earnings	47	(2,068)	(3,654)	(1,027)
Amount of net (gain) loss reclassified to earnings, Net of income taxes	209	(1,474)	(2,220)	(617)
Total effect on OCI	5,403	(12,754)	(4,207)	(3,634)
Total effect on OCI, Income tax effect	(1,260)	1,509	216	(816)
Total effect on OCI, Net of income taxes	4,143	(11,245)	(3,991)	(4,450)
Cash Flow Hedging \| Income Taxes
Derivative Instruments, Gain (Loss) [Line Items]
Amount of net (gain) loss reclassified to earnings, Income tax effect	162	594	1,434	410
Cash Flow Hedging \| Forward Currency Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in OCI	5,362	(3,368)	4,847	4,756
Total effect on OCI	4,703	(5,668)	(701)	3,071
Cash Flow Hedging \| Forward Currency Contracts \| Cost Of Sales
Derivative Instruments, Gain (Loss) [Line Items]
Amount of net (gain) loss reclassified to earnings	(659)	(2,300)	(5,548)	(1,685)
Cash Flow Hedging \| Interest Rate Swap \| Canadian Ad Fund
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in OCI	(6)	(83)	(264)	(128)
Total effect on OCI	41	(24)	(114)	11
Cash Flow Hedging \| Interest Rate Swap \| Interest (Expense) \| Canadian Ad Fund
Derivative Instruments, Gain (Loss) [Line Items]
Amount of net (gain) loss reclassified to earnings	47	59	150	139
Cash Flow Hedging \| Interest Rate Forwards
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in OCI	0	(7,235)	(5,136)	(7,235)
Total effect on OCI	659	(7,062)	(3,392)	(6,716)
Cash Flow Hedging \| Interest Rate Forwards \| Interest (Expense)
Derivative Instruments, Gain (Loss) [Line Items]
Amount of net (gain) loss reclassified to earnings	659	173	1,744	519

Tim Hortons Inc. 10-Q