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Goodwill and Other Intangible Assets - Additional Information (Detail)
$ in Thousands
12 Months Ended
Dec. 31, 2017
USD ($)
asset
Dec. 31, 2016
USD ($)
Jul. 07, 2014
USD ($)
Schedule Of Intangible Assets And Goodwill [Line Items]      
Goodwill $ 139,304 $ 139,304  
Number of intangible assets | asset 2    
Indefinite-Lived Trade Names [Member]      
Schedule Of Intangible Assets And Goodwill [Line Items]      
Indefinite life intangible asset $ 17,300    
Finite-Lived Trade Names [Member]      
Schedule Of Intangible Assets And Goodwill [Line Items]      
Remaining useful life of amortizing asset 8 years 2 months 12 days 9 years 2 months 12 days  
Amortization expense $ 534 $ 534  
Maracay Homes [Member]      
Schedule Of Intangible Assets And Goodwill [Line Items]      
Intangible assets useful life 20 years    
WRECO Transaction [Member]      
Schedule Of Intangible Assets And Goodwill [Line Items]      
Goodwill     $ 139,300