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Stock-Based Compensation (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 49 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Aug. 20, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Average home sales revenues performance period (in years) 3 years    
Share-based payment arrangement, expense $ 9,926 $ 4,440  
Performance Shares      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 3 years    
Share-based payment arrangement, expense $ 6,593 2,428  
Performance Shares | Equity Incentive Plan 2011 | Granted In 2017      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based payment arrangement, expense 1,400    
Performance Shares | Equity Incentive Plan 2011 | Granted in 2018      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based payment arrangement, expense 1,300 1,000  
Performance Shares | Equity Incentive Plan 2011 | Granted in 2019      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based payment arrangement, expense $ 1,800 0  
Performance Shares | Equity Incentive Plan 2011 | Granted in 2020      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based payment arrangement, expense   $ 3,500  
Performance Shares | Equity Incentive Plan 2011 | 5% to 10% Vesting Threshold      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of target goal number of shares     50.00%
Performance Shares | Equity Incentive Plan 2011 | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Average gross margin of home sales, percentage, minimum     15.00%
Percentage of performance revenues that exceed base revenues     10.00%
Performance Shares | Equity Incentive Plan 2011 | Minimum | 5% to 10% Vesting Threshold      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of performance revenues that exceed base revenues     5.00%
Performance Shares | Equity Incentive Plan 2011 | Minimum | 20% Vesting Threshold      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of performance revenues that exceed base revenues     20.00%
Performance Shares | Equity Incentive Plan 2011 | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of performance revenues that exceed base revenues     20.00%
Performance Shares | Equity Incentive Plan 2011 | Maximum | 5% to 10% Vesting Threshold      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of performance revenues that exceed base revenues     10.00%
Performance Shares | Equity Incentive Plan 2011 | Maximum | 20% Vesting Threshold      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of target goal number of shares     200.00%