Description of Business and Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 30, 2012	Jan. 01, 2012	Jan. 02, 2011
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Restricted cash	$ 50,591,000	$ 34,117,000
Amortization expense	300,000	300,000	300,000
Scheduled amortization expense in fiscal year one	300,000
Scheduled amortization expense in fiscal year two	100,000
Scheduled amortization expense in fiscal year three	0
Scheduled amortization expense in fiscal year four	0
Scheduled amortization expense in fiscal year five	0
Intangible assets carrying value	400,000	700,000
Capital lease assets	2,600,000	3,500,000
Accumulated amortization of capital lease assets	5,200,000	4,200,000
Depreciation and amortization expense	23,171,000	24,042,000	24,052,000
Impairment loss on long-lived assets	0	0	0
Deferred financing costs, amortization period		7 years
Additional deferred financing costs in connection with the 2012 Recapitalization	32,500,000	7,400,000
Write off financing cost	400,000		1,200,000
Deferred financing cost expense	13,800,000	3,700,000	5,000,000
Goodwill impairment charges	0	0	0
Capitalized software amortization expense	3,300,000	3,600,000	2,300,000
Proceeds from the sale and enhancements of developed software	2,700,000	2,500,000	1,900,000
Exposures for workers' compensation and general liability programs	1,000,000
Total insurance limits under the retention programs	110,000,000
Percentage of profit-sharing arrangements with participating stores	50.00%
Revenue reduction due to profit-sharing obligation	64,500,000	62,500,000	62,800,000
Advertising expense	27,600,000	28,500,000	30,200,000
Advertising contributions by company-owned stores	17,800,000	18,500,000	19,500,000
Advertising contributions by franchisees	173,600,000	165,800,000	161,400,000
Rent expenses	39,700,000	39,700,000	41,100,000
Derivative instruments outstanding	0	0
Interest paid	87,300,000	85,000,000	88,800,000
Cash paid for income taxes	46,100,000	41,200,000	49,300,000
Cash Held For Future Interest Payment
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Restricted cash	38,400,000
Cash Held In Interest Reserve
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Restricted cash	21,400,000
Other Restricted Cash
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Restricted cash	200,000
Minimum
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Notes receivable interest rate	7.00%
Notes receivable remaining principal due period	2
Owned and non-owned automobile liabilities	500,000
Maximum
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Notes receivable interest rate	12.00%
Notes receivable remaining principal due period	7
Owned and non-owned automobile liabilities	3,000,000
Two Thousand and Seven Recapitalization
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Recapitalization forward-starting interest rate swap agreement period (years)	5
Interest rate swap agreement, notional amount	1,250,000,000
Interest rate swap agreement, cash payment	11,500,000
Adjusted accumulated other comprehensive gain (loss) amount, interest rate swap agreement	7,100,000
Two Thousand and Twelve Recapitalization
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Write off financing cost	8,000,000
Two Thousand and Twelve Recapitalization | Deferred Financing Cost Asset
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Deferred financing costs, amortization period		7 years
Additional deferred financing costs in connection with the 2012 Recapitalization	32,500,000	7,400,000
Software | Minimum
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives of the software	1 year
Software | Maximum
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives of the software	3 years
Property Plant and Equipment
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Depreciation and amortization expense	$ 19,500,000	$ 20,100,000	$ 21,500,000