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Share-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2015
Share-Based Compensation [Abstract] |
Schedule Of Restricted Stock Units And Restricted Stocks Activity | The following table present s movements in the outstanding restricted stock units and restricted stock under the AerCap Holdings N.V. Equity Plans during the year ended December 31, 2015:
| Year Ended December 31, 2015
| Number of time based restricted stock units and restricted stock |  | Number of performance based restricted stock units and restricted stock |  | Weighted average grant date fair value of time based grants ($) |  | Weighted average grant date fair value of performance based grants ($)
Number at beginning of period (a) | 4,473,433 |  | 5,959,009 |  | $ | 33.40 |  | $ | 42.50
Granted (b) | 318,398 |  | 156,669 |  |  | 43.11 |  |  | 44.37
Vested (c) | (1,045,415) |  | (548,214) |  |  | 13.34 |  |  | 13.37
Cancelled | (6,726) |  | (13,453) |  |  | 46.59 |  |  | 46.59
Number at end of period (d) | 3,739,690 |  | 5,554,011 |  | $ | 39.81 |  | $ | 45.42
| (a) |  | Includes 365,000 restricted stock granted prior to 2015 under the AerCap Holdings N.V. Equity Plans, of which 232,140 restricted stock were issued with the remaining restricted stock being withheld and applied to pay the taxes involved.
| (b) |  | Includes 89,317 restricted stock granted under the AerCap Holdings N.V. Equity Plans, of which 63,311 restricted stock were issued with the remaining restricted stock being withheld and applied to pay the taxes involved.
| (c) |  | 1,588,808 restricted stock units, which were previously granted under the AerCap Holdings N.V. Equity Plans, vested. In connection with the vesting of the restricted stock units, the Company issued, in full satisfaction of its obligations, 912,850 ordinary shares to the holders of these restricted stock units with the remainder being withheld and applied to pay the taxes involved. In addition, restrictions on 4,821 restricted stock (3,066 restricted stock net of withholding for taxes) lapsed during the period.
| (d) |  | I n December 2015, 3,848,853 restricted stock units that had been issued previously were converted to restricted stock of which 2,744,813 were issued with the remaining stock being withheld and applied to pay the taxes involved. The converted restricted stock remained subject to restrictions and conditions identical to the restricted stock units, including vesting conditions.
Summary Of Outstanding Stock Options Under Equity Incentive Plan 2006 Activity | The following table present s movements in the outstanding stock options under the Equity Incentive Plan 2006 (no options were granted under the Equity Incentive Plan 2012 or Equity Incentive Plan 2014) and the stock options that rolled over from the amalgamation of Genesis in 2010 during the year ended December 31, 2015. All outstanding options were vested as of January 1, 2016.
| Year Ended December 31, 2015
| Number of options |  | Weighted average exercise price ($)
Options outstanding at beginning of period (a) | 532,223 |  | $ | 18.91
Exercised | (12,530) |  |  | 11.69
Options outstanding at end of period | 519,693 |  | $ | 19.08
| (a) |  | Includes 124,536 AER options granted to former Genesis directors and employees at the closing of the amalgamation with Genesis on March 25, 2010. These options were issued pursuant to a separate board resolution, and were not issued under any of the AerCap Holdings N.V. Equity Plans.
Summary Of Expected Sharebased Compensation Expenses Assuming Established Performance Criteria Are Met And No Forfeitures Occur | The following table presents our expected share-based compensation expense assuming that the established performance criteria are met and that no forfeitures occur:
| Expected share-based compensation expense
| (U.S. dollar amounts in millions)
2016 | $ | 100.7
2017 |  | 90.9
2018 |  | 41.3
2019 |  | 3.8

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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + 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)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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