Annual report pursuant to Section 13 and 15(d)

BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)

v3.20.4
BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
USD ($)
region
state
community
Dec. 31, 2019
USD ($)
Dec. 31, 2018
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 195    
Deposits on real estate under option or contract $ 59,534 $ 50,901  
Depreciation expense 18,900 17,300 $ 16,300
Debt issuance costs related to credit facility, net 4,700 3,300  
Advertising expense 10,500 14,600 15,400
Contribution to the 401(K) Retirement Plan 4,700 4,100 $ 3,700
Increase (decrease) to warranty reserve balance 0 0  
Right of use asset 21,624 26,332  
Present value of lease liabilities $ 28,254 34,231  
Non-Structural Items [Member]      
Organization and Presentation [Line Items]      
Warranty period following home closings 2 years    
Cash and Cash Equivalents [Member]      
Organization and Presentation [Line Items]      
Amounts in transit from title companies for home closings $ 61,300 $ 54,500  
Minimum [Member]      
Organization and Presentation [Line Items]      
Base price per house for sale range $ 191    
Community life cycle range 3 years    
Property and equipment useful life 3 years    
Maximum [Member]      
Organization and Presentation [Line Items]      
Base price per house for sale range $ 921    
Community life cycle range 5 years    
Property and equipment useful life 7 years    
Maximum [Member] | Structural [Member]      
Organization and Presentation [Line Items]      
Warranty period following home closings 10 years