Summary of Significant Accounting Policies Summary of Significant Accounting Policies (Details Textuals) (USD $)	12 Months Ended
	Dec. 30, 2014 bakery-cafes periods dough_facilities	Dec. 31, 2013	Dec. 25, 2012
Accounting Policies [Line Items]
Fiscal Period Number Of Weeks	364 days	371 days	364 days
Goodwill, Impairment Loss	$ 2,057,000
Impairment of Long-Lived Assets Held-for-use	900,000	800,000	300,000
Deferred Tax Assets, Valuation Allowance	4,625,000	3,173,000
Receivables [Abstract]
Income Taxes Receivable	33,400,000	22,800,000
Other Receivables	24,500,000	16,900,000
Lease Incentive Receivable	7,000,000	7,100,000
Allowance for Doubtful Other Receivables, Current	100,000	100,000
Property, Plant and Equipment, Net [Abstract]
Capitalized Interest Costs, Including Allowance for Funds Used During Construction	100,000	0	0
Cost of Property Repairs and Maintenance	62,000,000	56,600,000	48,000,000
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Impairment of Intangible Assets, Finite-lived	0	0	0
Insurance Loss Reserves [Abstract]
Self Insurance Reserve	32,600,000	31,500,000
Increase (Decrease) in Self Insurance Reserve	50,700,000	46,900,000	41,800,000
Capitalized Development Costs Incurred	10,400,000	9,600,000	9,000,000
Unamortized Debt Issuance Expense	800,000	800,000
Revenue Recognition [Abstract]
Initial Franchise Fees	35,000
Up Front Franchise Fee	5,000
Franchise Fees	3,600,000	2,200,000	1,900,000
Franchise Revenue	120,100,000	110,500,000	100,200,000
Loyalty Program Liability Term	60 days
Customer Loyalty Program Liability, Current	2,525,000	3,362,000
Revenue Recognition, Gift Cards, Breakage	4,900,000	2,800,000	1,800,000
Advertising Expense	65,500,000	55,600,000	44,500,000
Lease Term Renewal Options Number	1
Bakery-cafe Lease Term (in years)	15 years
FDF Lease Term (in years)	20 years
Bakery Cafe Using Canadian Dollar Functional Currency	9
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Percent of Stock paid by Company (as a percent)	15.00%
Vesting Percentage (as a percent)	25.00%
Capitalized Costs, Asset Retirement Costs	13,300,000	4,600,000
Asset Retirement Obligation	19,800,000	10,200,000
Asset Retirement Obligation, Accretion Expense	600,000	600,000	400,000
Franchise Dough Facility Using Canadian Functional Currency	1
Franchise Bakery-cafes Using Canadian Functional Currency	6
Maximum [Member]
Insurance Loss Reserves [Abstract]
Malpractice Insurance, Deductible	800,000
Lease Agreements [Member] | Minimum [Member]
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Finite-Lived Intangible Assets, Useful Life, Minimum (in years)	1 year
Lease Agreements [Member] | Maximum [Member]
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Finite-Lived Intangible Assets, Useful Life, Minimum (in years)	17 years
Contractual Rights [Member] | Minimum [Member]
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Finite-Lived Intangible Assets, Useful Life, Minimum (in years)	5 years
Contractual Rights [Member] | Maximum [Member]
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Finite-Lived Intangible Assets, Useful Life, Minimum (in years)	20 years
Trademarks [Member]
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Finite-Lived Intangible Assets, Useful Life, Minimum (in years)	22 years
Franchise Rights [Member] | Maximum [Member]
Revenue Recognition [Abstract]
Franchise Royalty Rate	5.00%
Leasehold Improvements [Member] | Minimum [Member]
Property, Plant and Equipment, Net [Abstract]
Property, Plant and Equipment, Useful Life, Minimum (in years)	15 years
Leasehold Improvements [Member] | Maximum [Member]
Property, Plant and Equipment, Net [Abstract]
Property, Plant and Equipment, Useful Life, Minimum (in years)	20 years
Machinery and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment, Net [Abstract]
Property, Plant and Equipment, Useful Life, Minimum (in years)	3 years
Machinery and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment, Net [Abstract]
Property, Plant and Equipment, Useful Life, Minimum (in years)	15 years
Furniture and Fixtures [Member] | Minimum [Member]
Property, Plant and Equipment, Net [Abstract]
Property, Plant and Equipment, Useful Life, Minimum (in years)	2 years
Furniture and Fixtures [Member] | Maximum [Member]
Property, Plant and Equipment, Net [Abstract]
Property, Plant and Equipment, Useful Life, Minimum (in years)	7 years
Computer Software, Intangible Asset [Member] | Minimum [Member]
Property, Plant and Equipment, Net [Abstract]
Property, Plant and Equipment, Useful Life, Minimum (in years)	3 years
Computer Software, Intangible Asset [Member] | Maximum [Member]
Property, Plant and Equipment, Net [Abstract]
Property, Plant and Equipment, Useful Life, Minimum (in years)	5 years
1992 Employee Stock Purchase Plan [Member]
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Percent of Stock paid by Employee (as a percent)	85.00%
Company Bakery Cafe Operations [Member]
Accounting Policies [Line Items]
Goodwill, Impairment Loss	$ 2,057,000	$ 0	$ 0