Summary of Identifiable Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Intangible assets gross	$ 9,076	$ 12,351
Accumulated Amortization	(5,541)	(6,325)
Intangible assets net	3,535	6,026
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Intangible assets gross	2,282	4,377
Accumulated Amortization	(1,463)	(2,170)
Intangible assets net	819	2,207
Non-Compete Agreements
Finite-Lived Intangible Assets [Line Items]
Intangible assets gross	3,265	3,408
Accumulated Amortization	(2,001)	(1,471)
Intangible assets net	1,264	1,937
Acquired Franchise Development Rights
Finite-Lived Intangible Assets [Line Items]
Intangible assets gross	3,529	4,566
Accumulated Amortization	(2,077)	(2,684)
Intangible assets net	$ 1,452	$ 1,882