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Geographic Information (Schedule Of Lease Revenue By Segment) (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 USD ($) country item | Dec. 31, 2015 USD ($) country item | Dec. 31, 2014 USD ($) country
Segment Reporting Information [Line Items] |  |  |  |
Lease revenue |  | $ 4,867,623 | $ 4,991,551 | $ 3,449,571
Total Lease Revenue [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Number of lessees | item |  | 0 | 0 |
Geographic Concentration Risk [Member] | Total Lease Revenue [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Percentage of lease revenue |  | 100.00% | 100.00% | 100.00%
China [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Lease revenue | [1] | $ 669,859 | $ 656,809 | $ 427,737
China [Member] | Geographic Concentration Risk [Member] | Total Lease Revenue [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Percentage of lease revenue | [1] | 13.80% | 13.20% | 12.40%
United States Of America [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Lease revenue |  | $ 535,526 | $ 538,686 | $ 378,693
United States Of America [Member] | Geographic Concentration Risk [Member] | Total Lease Revenue [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Percentage of lease revenue |  | 11.00% | 10.80% | 11.00%
Ireland [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Lease revenue |  | $ 117,259 | $ 58,571 | $ 36,513
Ireland [Member] | Geographic Concentration Risk [Member] | Total Lease Revenue [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Percentage of lease revenue |  | 2.40% | 1.20% | 1.10%
Other Countries [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Lease revenue | [2] | $ 3,544,979 | $ 3,737,485 | $ 2,606,628
Other Countries [Member] | Total Lease Revenue [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Number of individual countries | country |  | 0 | 0 | 0
Other Countries [Member] | Geographic Concentration Risk [Member] | Total Lease Revenue [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Percentage of lease revenue | [2] | 72.80% | 74.80% | 75.50%
Minimum [Member] | Geographic Concentration Risk [Member] | Total Lease Revenue [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Percentage of lease revenue |  | 10.00% | 10.00% | 10.00%
[1] | Includes mainland China, Hong Kong and Macau.
[2] | No individual country within this category accounts for more than 10% of our lease revenue.

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