XML 41 R24.htm IDEA: XBRL DOCUMENT v2.4.0.6

Introduction and Basis of Presentation (Tables)

3 Months Ended

Mar. 27, 2013

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Company and franchise unit activity

The following table shows the unit activity for the quarters ended March 27, 2013 and March 28, 2012, respectively:

	Quarter Ended
	March 27, 2013			March 28, 2012
Company restaurants, beginning of period	164			206
Units opened	—			—
Units sold to franchisees	—			(6	)
Units closed	—			(3	)
End of period	164			197
Franchised and licensed restaurants, beginning of period	1,524			1,479
Units opened	7			6
Units purchased from Company	—			6
Units closed	(6	)		(8	)
End of period	1,525			1,483
Total restaurants, end of period	1,689			1,680

X

- Definition

Represents tabular disclosure that depicts series of activities in regard to entity and franchise units (.i.e. number of units opened, closed etc).

+ References

No definition available.

+ Details

Name:	denn_ScheduleOfEntityAndFranchiseUnitActivityTableTextBlock
Namespace Prefix:	denn_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration