| 
           Organization and Basis of Presentation (Details Textual) (USD $) 
         | 
        9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 
           Sep. 30, 2014
 
          Communities
 
          Region
 
          State 
         | 
        
           Dec. 31, 2013 
         | 
        
           Sep. 30, 2014
 
          Maximum [Member] 
         | 
        
           Sep. 30, 2014
 
          Maximum [Member] 
         | 
        
           Sep. 30, 2014
 
          Minimum [Member] 
         | 
        
           Sep. 30, 2014
 
          Minimum [Member] 
         | 
        
           Sep. 30, 2014
 
          Legendary Communities Acquisition [Member]
 
          Lot 
         | 
        
           Aug. 01, 2014
 
          Legendary Communities Acquisition [Member]
 
          Lot 
         | 
        
           Aug. 01, 2014
 
          Owned Lots [Member]
 
          Legendary Communities Acquisition [Member]
 
          Lot 
         | 
        
           Aug. 01, 2014
 
          Option Lots [Member]
 
          Legendary Communities Acquisition [Member]
 
          Lot 
         | 
      ||||||
| Organization and Presentation [Line Items] | |||||||||||||||
| Entity operations in number of regions | 3 | ||||||||||||||
| Number of states in regions | 9 | ||||||||||||||
| Business acquisition lots acquired | 4,800 | 700 | 4,100 | ||||||||||||
| Business acquisition sales order backlog lots acquired | 185 | ||||||||||||||
| Number of communities in which homes are sold | 225 | ||||||||||||||
| Base price per house for sale range | $ 859,000 | $ 127,000 | |||||||||||||
| Maximum maturity period to classify liquid investments as cash equivalents | 3 months | ||||||||||||||
| Amounts in transit from title companies for home closings | 36,900,000 | 26,400,000 | |||||||||||||
| Money Market Funds, at Carrying Value | 300,000 | 68,300,000 | |||||||||||||
| Investment Maturity Period | 18 months | 3 months | |||||||||||||
| Unrecognized gains or losses or other-than-temporary impairments | 0 | ||||||||||||||
| Community life cycle range | 5 years | 3 years | |||||||||||||
| Deposits on real estate under option or contract | $ 80,263,000 | [1],[2] | $ 51,595,000 | ||||||||||||
| Warranty period following home closings | 10 years | ||||||||||||||
          
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