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Aircraft Portfolio (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended |
--- | --- | ---
Aug. 31, 2012 | Aug. 31, 2011 | May 31, 2012
Aircraft portfolio |  |  |
Sales from services | $ 223.0 | $ 154.1 |
Components of investment in the wholly-owned aircraft, after consideration of financing |  |  |
Debt | (787.6) |  | (792.2)
Aircraft | Owned Through Joint Ventures |  |  |
Aircraft portfolio |  |  |
Owned aircraft, number | 18 |  | 18
Equity investments | 41.3 |  | 41.3
Membership interest in limited liability companies (as a percent) | 50.00% |  |
Sales from services | 0.2 | 0.2 |
Summarized income statement information |  |  |
Sales | 8.8 | 9.5 |
Income before provision for income taxes | 2.9 | 0.6 |
Balance sheet information: |  |  |
Assets | 164.8 |  | 169.6
Debt | 71.2 |  | 75.6
Members' capital | 87.7 |  | 88.8
Aircraft | Wholly-Owned |  |  |
Aircraft portfolio |  |  |
Owned aircraft, number | 2 |  |
Components of investment in the wholly-owned aircraft, after consideration of financing |  |  |
Gross carrying value | 23.9 |  | 25.2
Debt |  |  | (8.4)
Net AAR investment | $ 23.9 |  | $ 16.8

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