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Inventory (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Inventory Disclosure [Abstract]    
Finished Homes and Homes under Construction $ 278,593 $ 268,763
Inventory, Real Estate, Land and Land Development Costs 411,833 399,809
Inventory, Land Held-for-sale 391 389
Total inventory $ 690,817 $ 668,961