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Stock-Based Compensation - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended
Mar. 09, 2020
Feb. 20, 2020
May 06, 2019
Mar. 11, 2019
Mar. 11, 2019
Feb. 28, 2019
Mar. 31, 2020
May 07, 2018
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award                  
Unrecognized stock based compensation related to all stock-based awards             $ 30.6    
Weighted average period, expense to recognize             2 years 3 months 18 days    
Restricted Stock Units (RSUs)                  
Share-based Compensation Arrangement by Share-based Payment Award                  
Restricted stock units, granted (shares)             1,411,553    
Granted (in dollars per share)             $ 18.71    
Fair value of RSUs (in dollars per share)             $ 15.40   $ 12.39
Restricted Stock Units (RSUs) | Time-vested RSUs                  
Share-based Compensation Arrangement by Share-based Payment Award                  
Vesting rights (percent)           30.00%      
Restricted Stock Units (RSUs) | Performance-based RSUs                  
Share-based Compensation Arrangement by Share-based Payment Award                  
Vesting rights (percent)           70.00%      
Restricted Stock Units (RSUs) | Performance-based RSUs | Minimum                  
Share-based Compensation Arrangement by Share-based Payment Award                  
Vesting rights (percent)           0.00%      
Restricted Stock Units (RSUs) | Performance-based RSUs | Maximum                  
Share-based Compensation Arrangement by Share-based Payment Award                  
Vesting rights (percent)           100.00%      
Restricted Stock Units (RSUs) | Officers                  
Share-based Compensation Arrangement by Share-based Payment Award                  
Restricted stock units, granted (shares)   547,166              
Potential change in TSR (percent)   25.00%              
Granted (in dollars per share)   $ 19.36              
Restricted Stock Units (RSUs) | Officers | Homebuilding revenue                  
Share-based Compensation Arrangement by Share-based Payment Award                  
Performance percentage (percent)   50.00%              
Restricted Stock Units (RSUs) | Officers | Pre-tax earnings                  
Share-based Compensation Arrangement by Share-based Payment Award                  
Performance percentage (percent)   50.00%              
Restricted Stock Units (RSUs) | Non-employee Members on Board of Directors                  
Share-based Compensation Arrangement by Share-based Payment Award                  
Restricted stock units, granted (shares)     61,488            
Restricted Stock Units (RSUs) | Certain employees                  
Share-based Compensation Arrangement by Share-based Payment Award                  
Restricted stock units, granted (shares)     1,098            
Restricted Stock Units (RSUs) | Certain Employees and Directors                  
Share-based Compensation Arrangement by Share-based Payment Award                  
Share-based compensation arrangement by share-based payment award, award vesting period     3 years            
Closing stock price on date of grant (in dollars per share)     $ 13.66            
Restricted Stock Units (RSUs) | Employees and Officers                  
Share-based Compensation Arrangement by Share-based Payment Award                  
Restricted stock units, granted (shares) 17,692 639,395              
Closing stock price on date of grant (in dollars per share) $ 14.13 $ 18.39              
Restricted Stock Units (RSUs) | Employees and Officers | Time-vested RSUs                  
Share-based Compensation Arrangement by Share-based Payment Award                  
Restricted stock units, granted (shares)       3,025   990,723      
Share-based compensation arrangement by share-based payment award, award vesting period         3 years     3 years  
Closing stock price on date of grant (in dollars per share)       $ 13.22 $ 13.22 $ 12.60      
Restricted Stock Units (RSUs) | Chief Executive Officer                  
Share-based Compensation Arrangement by Share-based Payment Award                  
Restricted stock units, granted (shares)           247,619      
Restricted Stock Units (RSUs) | President                  
Share-based Compensation Arrangement by Share-based Payment Award                  
Restricted stock units, granted (shares)   207,300       238,095      
Granted (in dollars per share)   $ 18.39              
Restricted Stock Units (RSUs) | President | Homebuilding revenue                  
Share-based Compensation Arrangement by Share-based Payment Award                  
Performance percentage (percent)   50.00%              
Restricted Stock Units (RSUs) | President | Pre-tax earnings                  
Share-based Compensation Arrangement by Share-based Payment Award                  
Performance percentage (percent)   50.00%              
Restricted Stock Units (RSUs) | Chief Financial Officer                  
Share-based Compensation Arrangement by Share-based Payment Award                  
Restricted stock units, granted (shares)           114,285      
Restricted Stock Units (RSUs) | Employees Officers And Directors | Performance-based RSUs                  
Share-based Compensation Arrangement by Share-based Payment Award                  
Closing stock price on date of grant (in dollars per share)           $ 12.60      
Fair value of RSUs (in dollars per share)           $ 8.16      
2013 Incentive Plan                  
Share-based Compensation Arrangement by Share-based Payment Award                  
Common stock (shares)             11,727,833    
Shares available for future grant (shares)             5,318,795