Segment Reporting - Additional Information (Detail) $ in Millions	3 Months Ended
Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($) Segment
Segment Reporting, Revenue Reconciling Item [Line Items]
Number of operating segments \| Segment		2
Number of reporatable segments \| Segment		2
Revenues	$ 918.5	$ 933.3
Tim Hortons [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Number of operating segments \| Segment		1
Revenues	657.8	$ 683.7
Burger King [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Number of operating segments \| Segment		1
Revenues	260.7	$ 249.6
Canada [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	581.2	604.6
Outside of Canada [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 337.3	$ 328.7
Canada And United States [Member] \| Geographic Concentration Risk [Member] \| Sales Revenue, Net [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues percentage	10.00%	10.00%
United States [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 229.5	$ 231.8

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6351-108592

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13531-108611

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6404-108592

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13537-108611

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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