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Equity-Based Compensation, Profit Sharing and Deferred Compensation Plans - Additional Information (Detail)
$ / shares in Units, $ in Thousands
12 Months Ended 192 Months Ended
Dec. 31, 2015
USD ($)
CompensationPlan
$ / shares
shares
Dec. 31, 2014
USD ($)
shares
Dec. 31, 2013
USD ($)
shares
Dec. 31, 2015
USD ($)
shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Equity-based compensation expense | $ $ 54,091 $ 63,227 $ 34,296  
Tax benefit related to equity-based compensation costs | $ 19,700 $ 22,900 12,100  
Forfeiture estimate adjustment | $     7,900  
Forfeiture estimate adjustment charged from homebuilding general and administrative expense | $     7,100  
Forfeiture estimate adjustment charged from homebuilding cost of sales expense | $     300  
Forfeiture estimate adjustment charged from NVRM general and administrative expense | $     $ 500  
Total unrecognized compensation cost for all outstanding Options and RSUs | $ $ 152,000     $ 152,000
Weighted-average period over which the unrecognized compensation will be recorded 2 years 4 months 24 days      
Reissued shares during the period, shares 131,000 123,000 102,000 7,418,000
Combined plan contribution | $ $ 17,900 $ 16,980 $ 12,012  
Shares contributed to the Employee Stock Ownership Plan 11,000 14,000    
Number of deferred compensation plans | CompensationPlan 2      
Common stock shares held in rabbi trust account 108,614 108,614   108,614
Shares of common stock contributed to rabbi trust account 0 0    
RSUs [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Exercise price | $ / shares $ 0      
RSUs [Member] | Two Thousand Ten Equity Plan        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Restricted share units grants during period 0      
Options [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Number of years for options granted 10 years      
Options [Member] | 2014 Plan [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Restricted share units vesting period or Option vesting period 4 years      
Options issued under the plan 38,000      
Options vesting rights over four years in 25% increments beginning on December 31, 2016      
Percentage of options vesting rights 25.00%      
Options [Member] | Two Thousand Ten Equity Plan        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Restricted share units vesting period or Option vesting period 4 years      
Options issued under the plan 10,000      
Options vesting rights over four years in 25% increments beginning on December 31, 2017      
Percentage of options vesting rights 25.00%      
Options [Member] | Option Grant Contingent upon Continued Employment or Service as a Director and Achievement of Performance Metric | 2014 Plan [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Percentage of options vesting rights 50.00%      
Options granted 24,000      
Options [Member] | Option Grant Solely Contingent upon Continued Employment or Continued Service as a Director | 2014 Plan [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Percentage of options vesting rights 50.00%      
Options granted 14,000      
Options [Member] | Options Granted in 2015 [Member] | 2014 Plan [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Options vesting rights Over four years in 25% increments beginning on December 31, 2017      
Minimum [Member] | RSUs [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Restricted share units vesting period or Option vesting period 2 years      
Minimum [Member] | Options [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Restricted share units vesting period or Option vesting period 3 years      
Maximum [Member] | RSUs [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Restricted share units vesting period or Option vesting period 4 years      
Maximum [Member] | Options [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Restricted share units vesting period or Option vesting period 6 years