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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 |  |  |

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- Definition This item represents the amount of contributions made during the period to the Employee Stock Ownership Plan (ESOP) and Profit Sharing Plan (PSP). + References No definition available. + Details
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- Definition Pre-tax adjustment of stock-based compensation expense attributable to an adjustment of option forfeiture estimates charged from homebuilding cost of sales expense. + References No definition available. + Details
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- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Description of award terms as to how many shares or portion of an award are no longer contingent on satisfaction of either a service condition, market condition or a performance condition, thereby giving the employee the legal right to convert the award to shares, to sell the shares, and be entitled to the cash proceeds of such sale. For example, vesting may be expressed as being 25 percent of the shares under option on each anniversary of the grant date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Number of share instruments newly issued under a share-based compensation plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Percentage of vesting of share-based compensation awards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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