Organization, Consolidation and Presentation of Financial Statements Disclosure - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Organization and Summary of Significant Accounting Policies Disclosure [Line Items]
Cost of sale	$ 12,085	$ 10,701	$ 20,949	$ 15,120
Real Estate
Organization and Summary of Significant Accounting Policies Disclosure [Line Items]
Cost of sale	1,881	347	2,169	625
Real Estate | Restatement Adjustment
Organization and Summary of Significant Accounting Policies Disclosure [Line Items]
Cost of sale		$ 346		$ 624