Segment Information (Detail) (As Restated [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 24, 2012	Jun. 26, 2011	Jun. 24, 2012	Jun. 26, 2011	Dec. 25, 2011
Segment Reporting Information [Line Items]
Revenue from external customers	$ 318,579	$ 293,534	$ 649,855	$ 606,001
Intersegment revenues	43,234	39,036	88,395	105,403
Income (loss) before income taxes	23,466	18,977	50,986	45,030
Accumulated depreciation and amortization	(279,921)		(279,921)
Net property and equipment	186,567		186,567		181,910
Domestic Company-owned Restaurants [Member]
Segment Reporting Information [Line Items]
Revenue from external customers	143,527	127,641	287,342	266,312
Income (loss) before income taxes	9,358	7,421	21,679	18,304
Property and equipment, gross	179,140		179,140
Domestic Commissaries [Member]
Segment Reporting Information [Line Items]
Revenue from external customers	126,593	121,027	264,203	248,699
Intersegment revenues	39,953	35,872	81,490	73,972
Income (loss) before income taxes	7,978	4,321	19,144	13,875
Property and equipment, gross	89,308		89,308
North America Franchising [Member]
Segment Reporting Information [Line Items]
Revenue from external customers	19,307	18,227	40,047	38,143
Intersegment revenues	561	535	1,110	1,083
Income (loss) before income taxes	16,619	16,240	34,759	34,249
International [Member]
Segment Reporting Information [Line Items]
Revenue from external customers	17,381	14,269	34,234	27,030
Intersegment revenues	56	58	110	105
Income (loss) before income taxes	320	(250)	592	(1,066)
Property and equipment, gross	19,032		19,032
All Others [Member]
Segment Reporting Information [Line Items]
Other sales	11,771	12,370	24,029	25,817
Intersegment revenues	2,664	2,571	5,685	5,126
Income (loss) before income taxes	471	(298)	866	(676)
Property and equipment, gross	42,668		42,668
Variable Interest Entity, Primary Beneficiary [Member]
Segment Reporting Information [Line Items]
Intersegment revenues				25,117
Unallocated Amount to Segment [Member]
Segment Reporting Information [Line Items]
Income (loss) before income taxes	(10,799)	(8,607)	(25,583)	(19,103)
Property and equipment, gross	136,340		136,340
Intersegment Elimination [Member]
Segment Reporting Information [Line Items]
Income (loss) before income taxes	$ (481)	$ 150	$ (471)	$ (553)