Franchise Rights and Goodwill - Additional Information (Detail) (USD $)	3 Months Ended	6 Months Ended
Jun. 29, 2014	Jun. 29, 2014
Intangible Assets Net Excluding Goodwill [Abstract]
Additional goodwill	$ 1,200,000
Impairment of the carrying value of franchise rights and goodwill	0	0
Additional franchise rights	$ 0

Amount of increase (decrease) of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267

Name:	us-gaap_GoodwillPeriodIncreaseDecrease
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration