XML 52 R39.htm IDEA: XBRL DOCUMENT v3.10.0.1
Fair Value Measurements Assets and Liabilities Measured on a Non-Recurring Basis (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Inventory valuation adjustments and abandoned land transaction write-offs $ 0 $ 0 $ 0 $ 0
Assets Held-for-sale, Not Part of Disposal Group 5,600   5,600  
Equity Method Investment, Other than Temporary Impairment 0 0 0 0
Impairment Charge on Reclassified Assets $ 0 $ 0 $ 0 $ 0