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Investments (Details) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2018 USD ($) engine aircraft | Mar. 31, 2017 USD ($) | Dec. 31, 2017 USD ($) | May 25, 2011
Investments |  |  |  |
Net book value of equipment held for operating lease | $ 1,466,144 |  | $ 1,342,571 |
Investment in WMES joint ventures at beginning of the period | 50,641 |  |  |
Earnings from joint venture | 747 |  |  |
Deferred gain on engine sale | (723) |  |  |
Foreign Currency Translation Adjustment | 585 |  |  |
Investment in WMES joint ventures at end of the period | 51,250 |  |  |
Revenue | $ 1,882 |  |  |
WMES |  |  |  |
Investments |  |  |  |
Number of engines in lease portfolio | engine | 34 |  |  |
Number of aircraft in lease portfolio | aircraft | 1 |  |  |
Net book value of equipment held for operating lease | $ 268,500 |  |  |
Ownership interest (as a percent) | 100.00% |  |  | 50.00%
Investment in WMES joint ventures at beginning of the period | $ 36,014 |  |  |
Earnings from joint venture | 390 |  |  |
Deferred gain on engine sale | (723) |  |  |
Investment in WMES joint ventures at end of the period | 35,681 |  |  |
Condensed Consolidated Statements of Income |  |  |  |
Revenue | 7,606 | $ 11,661 |  |
Expenses | 6,904 | 8,430 |  |
WMES net income | 702 | 3,231 |  |
Condensed Consolidated Balance Sheets |  |  |  |
Total assets | 273,952 |  | 246,309 |
Total liabilities | 192,169 |  | 165,228 |
Total WMES net equity | 81,783 |  | $ 81,081 |
WMES | Other Revenue | Asset Management |  |  |  |
Investments |  |  |  |
Revenue | $ 700 | $ 800 |  |
CASC Willis |  |  |  |
Investments |  |  |  |
Number of engines in lease portfolio | engine | 4 |  |  |
Net book value of equipment held for operating lease | $ 58,800 |  |  |
Ownership interest (as a percent) | 50.00% |  |  |
Investment in WMES joint ventures at beginning of the period | $ 14,627 |  |  |
Earnings from joint venture | 357 |  |  |
Foreign Currency Translation Adjustment | 585 |  |  |
Investment in WMES joint ventures at end of the period | $ 15,569 |  |  |

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