SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 5)	Dec. 31, 2012 item	Dec. 31, 2011 item	Dec. 31, 2010 item
Domestic
Franchising program
Number of domestic franchises	57	58	56
International
Franchising program
Number of domestic franchises	22	18	16

The number of franchised outlets in operation at the balance sheet date when there are significant changes in franchisor-owned outlets or franchised outlets during the period.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 952

-SubTopic 605

-Section 50

-Paragraph 3

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6490825&loc=d3e68639-108044

Name:	us-gaap_SignificantChangesFrachisedOutletsInOperation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant