Commitments and Contingencies Commitments (Details Textuals) $ in Thousands	12 Months Ended
	Dec. 27, 2016 USD ($) bakery-cafes	Dec. 29, 2015 USD ($) bakery-cafes	Dec. 30, 2014 USD ($) bakery-cafes
Leased Assets [Line Items]
Sale Leaseback Transaction, Deferred Gain, Gross	$ 100	$ 400	$ 300
Operating Leases, Rent Expense, Net	142,600	146,600	138,000
Operating Leases, Rent Expense, Contingent Rentals	2,300	2,000	$ 1,500
Asset Retirement Obligation	20,400	19,500
Capital Lease Obligations	$ 700	$ 900
Bakery-cafes involved in sale-leaseback transaction | bakery-cafes	3	4	6
Proceeds from sale-leaseback transactions	$ 8,940	$ 10,095	$ 12,900
Minimum [Member]
Leased Assets [Line Items]
Lease Expiration Date	Jul. 15, 2020
Maximum [Member]
Leased Assets [Line Items]
Lease Expiration Date	Feb. 28, 2049
Trucks [Member] | Minimum [Member]
Leased Assets [Line Items]
Lease Term	5 years
Trucks [Member] | Maximum [Member]
Leased Assets [Line Items]
Lease Term	7 years
Bakery-Cafe [Member] | Leaseholds and Leasehold Improvements [Member]
Leased Assets [Line Items]
Lease Term	15 years
Fresh Dough Facility [Member] | Leaseholds and Leasehold Improvements [Member]
Leased Assets [Line Items]
Lease Term	20 years