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Summary of Significant Accounting Policies - Additional Information (Detail)
12 Months Ended
Dec. 31, 2016
USD ($)
community
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Significant Accounting Policies [Line Items]      
Debt issuance costs $ 12,516,000 $ 14,843,000  
Restricted cash 1,633,000 1,280,000  
Inventory impairments 3,473,000 0 $ 0
Allowances for credit losses 5,000 200,000  
Equity method investment impairment charges 0 0 0
Depreciation expense $ 2,900,000 3,300,000 $ 3,000,000
Inactive [Member]      
Significant Accounting Policies [Line Items]      
Number of communities | community 7    
Carrying value of inactive projects $ 16,200,000    
Inactive [Member] | Eastern Region [Member]      
Significant Accounting Policies [Line Items]      
Carrying value of inactive projects 2,200,000    
Inactive [Member] | Western Region [Member]      
Significant Accounting Policies [Line Items]      
Carrying value of inactive projects $ 14,000,000    
Inactive [Member] | Central Region [Member]      
Significant Accounting Policies [Line Items]      
Number of communities | community 0    
Minimum [Member]      
Significant Accounting Policies [Line Items]      
Finite-lived intangible asset, useful life 3 years    
Maximum [Member]      
Significant Accounting Policies [Line Items]      
Finite-lived intangible asset, useful life 10 years    
Buildings [Member] | Minimum [Member]      
Significant Accounting Policies [Line Items]      
Property, plant and equipment, useful life 20 years    
Buildings [Member] | Maximum [Member]      
Significant Accounting Policies [Line Items]      
Property, plant and equipment, useful life 40 years    
Building and Leasehold Improvements [Member]      
Significant Accounting Policies [Line Items]      
Property, plant and equipment, useful life 10 years    
Furniture, fixtures and computer equipment [Member] | Minimum [Member]      
Significant Accounting Policies [Line Items]      
Property, plant and equipment, useful life 5 years    
Furniture, fixtures and computer equipment [Member] | Maximum [Member]      
Significant Accounting Policies [Line Items]      
Property, plant and equipment, useful life 7 years    
Model and sales office improvements [Member]      
Significant Accounting Policies [Line Items]      
Property, plant and equipment, useful life 3 years    
Revolving Credit Facility [Member]      
Significant Accounting Policies [Line Items]      
Debt issuance costs $ 3,500,000 5,100,000  
Prepaid Expenses and Other Current Assets [Member] | Revolving Credit Facility [Member]      
Significant Accounting Policies [Line Items]      
Debt issuance costs   5,100,000  
New Accounting Pronouncement, Early Adoption, Effect [Member] | Prepaid Expenses and Other Current Assets [Member]      
Significant Accounting Policies [Line Items]      
Debt issuance costs   (14,800,000)  
New Accounting Pronouncement, Early Adoption, Effect [Member] | Long-term Debt [Member]      
Significant Accounting Policies [Line Items]      
Debt issuance costs   $ 14,800,000