Represents the gross carrying value of the aircraft on short-term and long-term leases with commercial airlines.

No definition available.

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The amount of debt reported by an equity method investment of the entity.

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No definition available.

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Represents the net investment in aircraft, taking into account the gross carrying value, debt and capital lease obligations related to the aircraft.

+ References

No definition available.

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Represents the number of aircraft owned by the entity.

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No definition available.

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- Definition

Represents the number of aircraft sold by the joint venture partners during the period.

+ References

No definition available.

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Represents the number of aircraft in which there is a receivable from the sale and financing.

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No definition available.

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- Definition

Represents the revenue generated from sale of assets of joint venture by joint venture partners.

+ References

No definition available.

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- Definition

Decrease for amounts repaid on the debt instrument for the period.

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Interest rate stated in the contractual debt agreement.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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The amount of assets reported by an equity method investment of the entity.

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The amount of equity (capital) attributable to the equity method investment of the entity.

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The amount of income (loss) from continuing operations before extraordinary items reported by an equity method investment of the entity.

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The amount of revenue from sale of goods and services reduced by sales returns, allowances, and discounts reported by an equity method investment of the entity.

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No definition available.

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Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date. May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any.

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Aggregate revenue during the period from services rendered in the normal course of business, after deducting allowances and discounts.

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Aircraft Portfolio (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended			9 Months Ended
	Feb. 28, 2013 item Y	Nov. 30, 2012 item	Feb. 29, 2012	Feb. 28, 2013 Y item	Feb. 29, 2012	May 31, 2012
Aircraft portfolio
Sales from services	$ 230.5		$ 170.3	$ 674.5	$ 487.1
Components of investment in the wholly-owned aircraft, after consideration of financing
Debt	(722.8)			(722.8)		(792.2)
Note payable due July 19, 2012 with interest at 7.22%, payable monthly
Components of investment in the wholly-owned aircraft, after consideration of financing
Debt						(8.4)
Debt repayment				8.4
Interest rate (as a percent)						7.22%
Owned Through Joint Ventures
Summarized income statement information
Number of aircraft sold by joint venture partners	10
Revenue from sale of aircraft by joint venture partners	64.0
Aircraft \| Owned Through Joint Ventures
Aircraft portfolio
Owned aircraft, number	4			4
Number of aircraft in which there is a receivable from the sale and financing	4			4
Equity investments	26.7			26.7		41.3
Membership interest in limited liability companies (as a percent)	50.00%			50.00%
Sales from services				0.4	0.5
Summarized income statement information
Sales	83.0		7.6	113.1	29.1
Income before provision for income taxes	6.7		0.4	12.1	1.5
Number of aircraft sold by joint venture partners	10	2
Revenue from sale of aircraft by joint venture partners	64.0	13.9
Balance sheet information:
Assets	93.5			93.5		169.6
Debt	29.4			29.4		75.6
Members' capital	60.5			60.5		88.8
Aircraft \| Wholly-Owned
Aircraft portfolio
Owned aircraft, number	2			2		2
Components of investment in the wholly-owned aircraft, after consideration of financing
Gross carrying value	22.3			22.3		25.2
Debt						(8.4)
Net AAR investment	$ 22.3			$ 22.3		$ 16.8