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Share-Based Compensation (Schedule Of Restricted Stock Units And Restricted Stocks Activity) (Details) | 12 Months Ended
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Dec. 31, 2016 $ / shares shares
Timebased Restricted Stock Units And Restricted Stock [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Number at beginning of period, Number of restricted stock units and restricted stock | 3,739,690 |
Number at beginning of period, Weighted average grant date fair value | $ / shares | $ 39.81 |
Granted, Number of restricted stock units and restricted stock | 307,907 | [1]
Granted, Weighted average grant date fair value | $ / shares | $ 41.12 | [1]
Transfers between categories, Number of restricted stock units and restricted stock | 64,448 |
Transfers between categories, Weighted average grant date fair value | $ / shares | $ 46.59 |
Vested, Number of restricted stock units and restricted stock | (495,508) | [2]
Vested, Weighted average grant date fair value | $ / shares | $ 13.76 | [2]
Cancelled, Number of restricted stock units and restricted stock | (36,703) |
Cancelled, Weighted average grant date fair value | $ / shares | $ 45.90 |
Number at end of period, Number of restricted stock units and restricted stock | 3,579,834 | [3]
Number at end of period, Weighted average grant date fair value | $ / shares | $ 42.78 | [3]
Peformance Based Restricted Stock Units And Restricted Stock [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Number at beginning of period, Number of restricted stock units and restricted stock | 5,554,011 |
Number at beginning of period, Weighted average grant date fair value | $ / shares | $ 45.42 |
Granted, Number of restricted stock units and restricted stock | 276,669 | [1]
Granted, Weighted average grant date fair value | $ / shares | $ 40.14 | [1]
Transfers between categories, Number of restricted stock units and restricted stock | (64,448) |
Transfers between categories, Weighted average grant date fair value | $ / shares | $ 46.59 |
Vested, Number of restricted stock units and restricted stock | (180,480) | [2]
Vested, Weighted average grant date fair value | $ / shares | $ 19.39 | [2]
Cancelled, Number of restricted stock units and restricted stock | (73,410) |
Cancelled, Weighted average grant date fair value | $ / shares | $ 45.90 |
Number at end of period, Number of restricted stock units and restricted stock | 5,512,342 | [3]
Number at end of period, Weighted average grant date fair value | $ / shares | $ 46.19 | [3]
Restricted Stock [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Granted, Number of restricted stock units and restricted stock | 180,000 |
Restricted stocks issued net of withholding for taxes | 111,901 |
Restricted Stock Units [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Restricted stock issued | 807,227 |
Restricted stocks issued net of withholding for taxes | 541,037 |
Vested Restricted Stock Units [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Vested, Number of restricted stock units and restricted stock | (279,594) |
Ordinary shares issued to the holders of these restricted stock units with the remainder being withheld and applied to pay the taxes involved | 150,082 |
Lapsed Restrictions On Restricted Stock [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Restricted stock issued | 396,394 |
Restricted stocks issued net of withholding for taxes | 253,040 |
[1] | Includes 180,000 restricted stock granted under the AerCap Holdings N.V. Equity Plans, of which 111,901 restricted stock were issued with the remaining restricted stock being withheld and applied to pay the taxes involved.
[2] | 279,594 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, 150,082 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 396,394 restricted stock (253,040 restricted stock net of withholding for taxes) lapsed during the period.
[3] | During the year ended December 31, 2016, 807,227 restricted stock units that had been issued previously were converted to restricted stock of which 541,037 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 and forfeiture conditions.

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- Definition Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Cancelled in Period + References No definition available. + Details
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- Definition Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Cancelled in Period, Weighted Average Grant Date Fair Value + References No definition available. + Details
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- Definition Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Transfers Between Categories, Weighted Average Grant Date Fair Value + References No definition available. + Details
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- Definition The number of restricted shares issued as compensation, net of shares for the payment of withholding taxes. This element is to be used only if shares are used in lieu of cash to satisfy all or a portion of withholding taxes. + References No definition available. + 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 The weighted average fair value at grant date for nonvested equity-based awards issued 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 The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet 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 (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units. + 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)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting 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 (c)(2)(iii)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. + 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)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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