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Nature of Operations and Summary of Significant Accounting Policies (Narrative) (Details)
$ in Thousands
12 Months Ended
Jan. 22, 2024
item
Dec. 31, 2023
USD ($)
segment
item
state
Dec. 31, 2022
USD ($)
item
Dec. 31, 2021
USD ($)
item
Number of operating states | state   18    
Number of operating segments | segment   5    
Earnest money deposits   $ 7,900 $ 17,900  
Number of communities impairment charges | item   5 22 1
Carrying Value Of Communities Before Impairment   $ 12,200    
Inventory impairment   1,877 $ 10,149 $ 41
Non-refundable cash deposits classified in prepaid expenses and other assets   18,300 25,800  
Advertising and marketing costs   14,900 9,500 7,700
Tax valuation allowance   0 0  
Reserves for uncertain tax positions   0 0  
Goodwill impairment   0 0  
Abandonment of lot option contracts   $ 3,373 $ 11,564 $ 2,935
Subsequent Event | Landmark [Member]        
Number of active communities acquired | item 6      
Model Homes And Sales Facilities [Member] | Minimum [Member]        
Estimated useful life   1 year    
Model Homes And Sales Facilities [Member] | Maximum [Member]        
Estimated useful life   3 years