Quarterly report pursuant to Section 13 or 15(d)

ORGANIZATION AND BASIS OF PRESENTATION - Narrative (Details)

v3.21.1
ORGANIZATION AND BASIS OF PRESENTATION - Narrative (Details)
3 Months Ended
Mar. 31, 2021
USD ($)
region
state
community
Dec. 31, 2020
USD ($)
Organization and Presentation [Line Items]    
Entity operations in number of regions | region 3  
Number of states in regions | state 9  
Number of communities in which homes are sold | community 203  
Deposits on real estate under option or contract $ 64,355,000 $ 59,534,000
ROU assets 20,139,000 21,624,000
Lease liabilities 26,433,000 28,254,000
Contract asset insurance renewals 0 0
Cash and cash equivalents [Member]    
Organization and Presentation [Line Items]    
Amounts in transit from title companies for home closings 78,000,000.0 $ 61,300,000
Minimum [Member]    
Organization and Presentation [Line Items]    
Base price per house for sale range $ 203,000  
Community life cycle range 3 years  
Maximum [Member]    
Organization and Presentation [Line Items]    
Base price per house for sale range $ 931,000  
Community life cycle range 5 years  
Maximum [Member] | Non-Structural Items [Member]    
Organization and Presentation [Line Items]    
Warranty period following home closings 2 years  
Maximum [Member] | Structural [Member]    
Organization and Presentation [Line Items]    
Warranty period following home closings 10 years