Impairment Of Long-Lived Assets And Other Lease Charges Closed Restaurant Reserve Activity (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
Sep. 28, 2014	Dec. 29, 2013
Restructuring Reserve [Roll Forward]
Closed-restaurant reserve, beginning of the period	$ 1,466	$ 0
Provisions for restaurant closures	604	1,616
Payments, net	(479)	(242)
Other adjustments, including the effect of discounting further obligations and changes in estimates	75	92
Closed-restaurant reserve, end of the period	$ 1,666	$ 1,466

Amount of other expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses associated with a discontinued operation or an asset retirement obligation.

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Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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The aggregate amount provided for estimated restructuring charges, remediation costs, and asset impairment loss during an accounting period. Generally, these items are either unusual or infrequent, but not both (in which case they would be extraordinary items).

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