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Fair Value Disclosures Fair Value Disclosure - Additional Information (Details) - USD ($)
$ in Thousands
Oct. 02, 2014
Sep. 30, 2015
Dec. 31, 2014
Nov. 30, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Convertible Debt, Fair Value Disclosures   $ 75,900 $ 76,700 $ 76,500
Notes payable   247,809 216,099  
Oakmont Home Builders [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Fair Value Inputs, Discount Rate 10.00%      
Business Combination, Liabilities Arising from Contingencies, Amount Recognized   $ 1,600 $ 2,200