Impairment of Long-Lived Assets Impairment of Long-Lived Assets (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 28, 2015	Jun. 29, 2014	Jun. 28, 2015	Jun. 29, 2014	Dec. 28, 2014
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment of Long-Lived Assets Held-for-use			$ 10,803		$ 17,139
Impairment of Long-Lived Assets to be Disposed of	$ 394	$ 0	1,152	$ 332	2,474
Impairment of long-lived assets	10,018	77	11,955	2,606	$ 19,613
Restaurants leased or subleased to franchisees
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment of Long-Lived Assets Held-for-use	7,551	77	8,256	2,274
Company-owned restaurants
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment of Long-Lived Assets Held-for-use	$ 2,073	$ 0	$ 2,547	$ 0