Long-Term Debt - Tim Hortons Notes - Additional Information (Detail) CAD in Millions, $ in Millions		12 Months Ended
Mar. 12, 2015 USD ($)	Dec. 31, 2015 CAD
Senior Notes [Member] \| Series 1 Notes [Member]
Line of Credit Facility [Line Items]
Aggregate principal amount of debt issued		CAD 300.0
Maturity date of loan		Jun. 01, 2017
Senior convertible note, stated interest rate		4.20%
Prepayment on term loan facility		CAD 252.6
Senior Notes [Member] \| Series 2 Notes [Member]
Line of Credit Facility [Line Items]
Aggregate principal amount of debt issued		CAD 450.0
Maturity date of loan		Dec. 01, 2023
Senior convertible note, stated interest rate		4.52%
Prepayment on term loan facility		CAD 446.1
Senior Notes [Member] \| Series 3 Notes [Member]
Line of Credit Facility [Line Items]
Aggregate principal amount of debt issued		CAD 450.0
Maturity date of loan		Apr. 01, 2019
Senior convertible note, stated interest rate		2.85%
Prepayment on term loan facility		CAD 447.4
2014 Term Loan Facility [Member]
Line of Credit Facility [Line Items]
Maturity date of loan		Dec. 12, 2021
Prepayment on term loan facility \| $	$ 42.7

Face (par) amount of debt instrument at time of issuance.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

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Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
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