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Receivables - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Accounts and Notes Receivables $ 39,278 $ 33,685
Maturity date of principal amount after reorganization Apr. 30, 2017  
Due period of notes receivable as secured by deed of trust 3 years  
Loan secured by real estate [Member]
   
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Accounts and Notes Receivables 7,610 18,507
Principal amount after reorganization 33,900  
Interest accrue percentage till year three 9.00%  
Interest accrue percentage year four 10.00%  
Interest accrue percentage year five 12.00%  
Forgiven interest rate 6.25%  
Principal amount of loan received 14,315 3,887
Interest amount of loan received 1,872 1,635
Outstanding principal balance 15,698  
Other loans secured by real estate [Member]
   
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Accounts and Notes Receivables 7,987 1,875
Cibolo Canyons Project [Member]
   
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Area of Land 33  
Cibolo Canyons Project [Member] | Prime Rate [Member]
   
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans Receivable, Basis Spread on Variable Rate 1.00%  
Cibolo Canyons Project [Member] | Other loans secured by real estate [Member]
   
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Accounts and Notes Receivables 6,160  
Real Estate Property Sale Price 7,700  
Bridle Path Estates [Member] | Other loans secured by real estate [Member]
   
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Accounts and Notes Receivables 959  
Area of Land   109
Real Estate Property Sale Price 1,501  
Principal payments received 542  
Interest payments received 67  
Interest rate on mortgage loans receivables 5.00%  
San Joaquin River [Member] | Other loans secured by real estate [Member]
   
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Accounts and Notes Receivables $ 550  
San Joaquin River [Member] | Other loans secured by real estate [Member] | Prior To Maturity [Member]
   
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest rate on mortgage loans receivables 0.00%  
San Joaquin River [Member] | Other loans secured by real estate [Member] | After Maturity [Member]
   
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest rate on mortgage loans receivables 3.50%