Basis Of Presentation (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 30, 2014	Mar. 31, 2013	Mar. 30, 2014 Minimum [Member]	Mar. 30, 2014 Maximum [Member]	May 30, 2012 Number of Restaurants Acquired [Member]
Entity Information [Line Items]
Number of Restaurants	560				278
Number of States in which Entity Operates	13
Weeks In Fiscal Period	13	13	52	53
Long-term Debt, Fair Value	$ 172.1
Impairment Charges	$ 0.2	$ 0.6

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 45

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2420-110228

Name:	us-gaap_AssetImpairmentCharges
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration