Business Combinations and Divestitures (Details)	2 Months Ended	3 Months Ended		4 Months Ended	6 Months Ended	8 Months Ended	9 Months Ended	11 Months Ended	12 Months Ended
	Mar. 02, 2015 USD ($)	Jun. 28, 2016 USD ($)	Mar. 31, 2015 USD ($)	May 02, 2016 USD ($)	Jul. 13, 2015 USD ($)	Sep. 12, 2016 USD ($)	Oct. 06, 2015 USD ($)	Dec. 06, 2015 USD ($)	Dec. 27, 2016 USD ($) bakery-cafes	Dec. 29, 2015 USD ($) bakery-cafes	Dec. 30, 2014 USD ($)	Sep. 27, 2016 USD ($)	Sep. 13, 2016 bakery-cafes	May 03, 2016 bakery-cafes	Mar. 29, 2016 bakery-cafes	Dec. 07, 2015 USD ($)	Oct. 07, 2015 bakery-cafes	Jul. 14, 2015 bakery-cafes	Mar. 03, 2015 bakery-cafes	Dec. 31, 2013 USD ($)
Business Acquisition [Line Items]
Disposal Group, Not Discontinued Operation, Loss (Gain) on Write-down		$ 6,100,000							$ 6,112,000	$ 10,999,000
Assets, Current									311,421,000	468,310,000
Property, Plant and Equipment, Net									802,759,000	776,248,000
Goodwill, Acquired During Period									122,377,000	121,791,000	$ 120,778,000
Business Acquisition, Percentage of Voting Interests Acquired																50.01%
Payments to Acquire Businesses, Gross								$ 4,000,000		4,000,000
Disposal Group, Including Discontinued Operation, Other Expense									795,000	1,088,000
Proceeds from refranchising	$ 3,200,000			$ 15,200,000	$ 19,600,000	$ 500,000	$ 26,800,000		15,649,000	46,869,000	0
Promissory Note Receivable												$ 4,500,000
Loans Receivable, Basis Spread on Variable Rate												2.00%
Business Divestitures, Identifiable Assets Disposed, Inventory					500,000		900,000
Deferred Acquisition Holdback					2,000,000				0	0	270,000
Gain (Loss) on Disposition of Business	$ (2,600,000)			$ (500,000)	$ (600,000)	(200,000)	$ (1,600,000)		$ (693,000)	(440,000)
Noncash or Part Noncash Divestiture, Amount of Consideration Received						$ 5,000,000
Expiration Period of Holdbacks									Jul. 14, 2017
Impairment of Long-Lived Assets Held-for-use			$ 3,800,000						$ 4,000,000	3,800,000	900,000
Refranchising loss									9,072,000	17,108,000	0
Redeemable noncontrolling interest									3,603,000	3,981,000	$ 0									$ 0
Lease termination costs and impairment of long-lived assets									2,858,000	5,461,000
Disposal Group, Including Discontinued Operation, Inventory, Current										738,000
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Current										26,462,000
Disposal Group, Including Discontinued Operation, Goodwill, Current										1,499,000
Disposal Group, Including Discontinued Operation, Assets, Current									0	28,699,000
Disposal Group, Including Discontinued Operation, Deferred Rent, Current										2,410,000
Disposal Group, Including Discontinued Operation, Asset Retirement Obligation										535,000
Disposal Group, Including Discontinued Operation, Liabilities, Current									$ 0	$ 2,945,000
Refranchised Cafe [Domain]
Business Acquisition [Line Items]
Number of bakery cafes | bakery-cafes									102
Refranchised Cafe [Domain] | Minimum [Member]
Business Acquisition [Line Items]
Number of bakery cafes | bakery-cafes									50
Refranchised Cafe [Domain] | Maximum [Member]
Business Acquisition [Line Items]
Number of bakery cafes | bakery-cafes									150
Refranchised Cafe [Member]
Business Acquisition [Line Items]
Number of bakery cafes | bakery-cafes													12	15			45	29	1
Refranchising loss									$ 7,000,000
Cafes recalssified as held and used [Member]
Business Acquisition [Line Items]
Number of bakery cafes | bakery-cafes										8					20
Cafe Held for Sale [Member]
Business Acquisition [Line Items]
Number of bakery cafes | bakery-cafes										35
Tatte Acquisition [Member]
Business Acquisition [Line Items]
Goodwill, Acquired During Period																$ 2,512,000