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Equity-Based Compensation, Profit Sharing and Deferred Compensation Plans (Tables) | 12 Months Ended
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Dec. 31, 2014
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |
Equity-Based Compensation Plans | The following table provides additional information relative to NVR’s equity-based compensation plans for the year ended December 31, 2014:
|  | Shares |  |  | Weighted Avg. Per Share Exercise Price |  |  | Weighted Avg. Remaining Contract Life (years) |  |  | Aggregate Intrinsic Value |
Stock Options |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding at December 31, 2013 |  |  | 667 |  |  | $ | 740.18 |  |  |  |  |  |  |  |  |
Granted |  |  | 683 |  |  |  | 1,095.69 |  |  |  |  |  |  |  |  |
Exercised |  |  | (118 | ) |  |  | 644.60 |  |  |  |  |  |  |  |  |
Forfeited |  |  | (31 | ) |  |  | 910.36 |  |  |  |  |  |  |  |  |
Outstanding at December 31, 2014 |  |  | 1,201 |  |  | $ | 947.39 |  |  |  | 7.9 |  |  | $ | 393,866 |
Exercisable at December 31, 2014 |  |  | 346 |  |  | $ | 676.37 |  |  |  | 5.1 |  |  | $ | 207,487 |
RSUs (1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding at December 31, 2013 |  |  | 45 |  |  |  |  |  |  |  |  |  |  |  |  |
Granted |  |  | 16 |  |  |  |  |  |  |  |  |  |  |  |  |
Vested |  |  | (5 | ) |  |  |  |  |  |  |  |  |  |  |  |
Forfeited |  |  | (1 | ) |  |  |  |  |  |  |  |  |  |  |  |
Outstanding at December 31, 2014 |  |  | 55 |  |  |  |  |  |  |  |  |  |  | $ | 70,773 |
Vested, but not issued at December 31, 2014 |  |  | 2 |  |  |  |  |  |  |  |  |  |  | $ | 2,713 |
(1) | RSU grants were issued at a $0 exercise price.
Black-Scholes Option-Pricing Model Assumptions | The fair value of the Options granted during 2014, 2013 and 2012 was estimated on the grant date using the Pricing Model, based on the following assumptions:
|  | 2014 |  |  | 2013 |  |  | 2012 |
Estimated option life |  | 5.16 years |  |  | 5.20 years |  |  | 4.95 years |
Risk free interest rate (range) |  | 1.06%-2.49% |  |  | 0.42%-2.10% |  |  | 0.35%-1.84% |
Expected volatility (range) |  | 18.26%-30.57% |  |  | 17.98%-32.72% |  |  | 17.71%-34.43% |
Expected dividend rate |  |  | 0.00% |  |  |  | 0.00% |  |  |  | 0.00% |
Weighted average grant-date fair value per share of options granted |  | $ | 267.66 |  |  | $ | 268.13 |  |  | $ | 221.45 |
Exercised Option Proceeds | Information with respect to the vested RSUs and exercised Options is as follows:
|  | Year Ended December 31, |
|  | 2014 |  |  | 2013 |  |  | 2012 |
Aggregate exercise proceeds (1) |  | $ | 76,153 |  |  | $ | 14,834 |  |  | $ | 73,211 |
Aggregate intrinsic value on exercise dates |  | $ | 62,136 |  |  | $ | 84,908 |  |  | $ | 101,334 |
(1) | Aggregate exercise proceeds include the Option exercise price received in cash or the fair market value of NVR stock surrendered by the optionee in lieu of cash.

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- Definition Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: 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 Tabular disclosure of the amount of cash proceeds received from the exercise of stock options and similar instruments granted under share-based payment arrangements and the tax benefit realized from stock options exercised during the period. Disclosure may also include the intrinsic value of stock options exercised 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 (j) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of employee stock purchase plans, including, but not limited to: (a) expected term, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + 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 (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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