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Acquisition of RSI Communities - Schedule of Reconciliation of Consideration Transferred as of Acquisition Date (Details) - USD ($)
3 Months Ended
Mar. 31, 2018
Mar. 09, 2018
Mar. 08, 2018
Mar. 31, 2017
RSI Communities        
Business Acquisition [Line Items]        
Net proceeds received from RSI inventory involved in land banking transactions $ 194,131,000      
Issuance of 6.00% Senior Notes due September 1, 2023 (190,437,000)      
Cash on hand 90,653,000      
Total consideration transferred $ 475,221,000      
6% Senior Notes due 2023        
Business Acquisition [Line Items]        
Stated interest rate 6.00%      
6% Senior Notes due 2023 | Senior notes        
Business Acquisition [Line Items]        
Stated interest rate   6.00% 6.00% 8.50%