Commitments and Contingencies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Commitments And Contingencies [Line Items]
Rent expense, net of sub-lease rental income	$ 31.2	$ 29.7	$ 31.7
Franchisee leases sold with recourse provisions	$ 7.7	$ 13.3
Minimum term required for leases to recourse (in days)	90 days
Workforce Subject To Collective Bargaining Arrangements [Member]
Commitments And Contingencies [Line Items]
Number of employees covered under collective bargaining agreements	2,600
Percentage of employees covered under collective bargaining agreements	23.00%
Workforce Subject To Collective Bargaining Agreements Expiring 2013 [Member]
Commitments And Contingencies [Line Items]
Number of employees covered under collective bargaining agreements	1,200
Collective bargaining agreements year of expiration	2014