Cash and Receivables Allowance for Doubtful Accounts (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 28, 2014	Dec. 29, 2013	Dec. 30, 2012
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning Balance, Current	$ 3,559	$ 6,321	$ 4,053
Beginning Balance, Noncurrent	275	2,881	963
Provision for Doubtful Accounts, Franchisees and other	(1,004)us-gaap_ProvisionForDoubtfulAccounts	(574)us-gaap_ProvisionForDoubtfulAccounts	670us-gaap_ProvisionForDoubtfulAccounts
Uncollectible accounts written-off, net of recoveries	(92)	(4,794)	(28)
Ending Balance, Current	2,488	3,559	6,321
Ending Balance, Noncurrent	250	275	2,881
Allowances for Doubtful Accounts Receivable, Balance	2,738	3,834	9,202
Breakfast expansion [Member]
Allowance for Doubtful Accounts Receivable [Roll Forward]
Breakfast notes receivables fully reserved	$ 0	$ 0	$ 3,544

For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

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-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-Section 50

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- Definition

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

+ References

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- Definition

A valuation allowance for receivables due to an Entity for more than one year from the balance sheet date that are expected to be uncollectible.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 4

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

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-Section S99

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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef

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-Section 50

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- Definition

Amount of direct write-downs of accounts receivable charged against the allowance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

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- Definition

Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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- Definition

Allowance for Doubtful Accounts Receivable, Write-offs, Net of Recoveries

+ References

No definition available.

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