Summary of Property, Plant and Equipment (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012		Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Land	$ 25,285		$ 25,882
Buildings and Improvements	81,773		81,566
Leasehold Improvements and Signs	120,883		116,632
Fixtures and Equipment	152,436	[1]	133,615	[1]
Construction in Progress	5,414		5,444
Property, Plant and Equipment, Gross	404,513		381,344
Less: Accumulated Depreciation and Amortization	(173,915)		(154,725)
Property, Plant and Equipment, Net	230,598		226,619
Related Party
Property, Plant and Equipment [Line Items]
Assets Under Capital Leases	8,158		7,641
Non-Related Party
Property, Plant and Equipment [Line Items]
Assets Under Capital Leases	$ 10,564		$ 10,564

[1] Includes internal-use software development costs of $22.6 million and $15.6 million as of December 31, 2012 and 2011, respectively. Accumulated amortization of internal-use software development costs amounted to $6.6 million and $9.8 million as of December 31, 2012 and 2011, respectively.