Consolidated Statements Of Operations (USD $) In Thousands, unless otherwise specified	7 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended
	Jan. 31, 2011 Successor [Member]	Jan. 30, 2012 Successor [Member]	Jul. 12, 2010 Predecessor [Member]	Jan. 25, 2010 Predecessor [Member]
Revenue:
Company-operated restaurants	$ 598,753	$ 1,122,430	$ 500,531	$ 1,084,474
Franchised restaurants and other	80,355	157,897	151,588	334,259
Total revenue	679,108	1,280,327	652,119	1,418,733
Operating costs and expenses:
Food and packaging	176,310	344,394	148,642	309,728
Payroll and other employee benefits	173,717	325,890	147,391	313,368
Occupancy and other	145,882	269,331	118,138	258,301
Total restaurant operating costs	495,909	939,615	414,171	881,397
Franchised restaurants and other	39,464	81,372	115,120	254,124
Advertising	34,481	65,061	29,647	64,443
General and administrative	84,833	130,855	59,859	134,579
Facility action charges, net	1,683	(6,018)	590	4,695
Other operating expenses, net	20,003	545	10,249
Total operating costs and expenses	676,373	1,211,430	629,636	1,339,238
Operating income	2,735	68,897	22,483	79,495
Interest expense	(43,681)	(77,366)	(8,617)	(19,254)
Other (expense) income, net	1,645	(2,871)	(13,609)	2,935
(Loss) income before income taxes	(39,301)	(11,340)	257	63,176
Income tax (benefit) expense	(11,411)	(5,079)	7,772	14,978
Net (loss) income	$ (27,890)	$ (6,261)	$ (7,515)	$ 48,198