Property and Equipment - Schedule of Property and Equipment Net (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Interest Cost Capitalized And Depreciation And Amortization Expenses For Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 34,327	$ 33,807
less: accumulated depreciation & amortization	(15,089)	(13,630)
Net property and equipment	19,238	20,177
Land [Member]
Interest Cost Capitalized And Depreciation And Amortization Expenses For Property, Plant and Equipment [Line Items]
Property and equipment, gross	3,831	3,831
Building and improvements [Member]
Interest Cost Capitalized And Depreciation And Amortization Expenses For Property, Plant and Equipment [Line Items]
Property and equipment, gross	18,702	18,618
Furniture and equipment [Member]
Interest Cost Capitalized And Depreciation And Amortization Expenses For Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 11,794	$ 11,358