Condensed Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Nov. 30, 2012	May 31, 2012
Current assets:
Cash	$ 69.2	$ 67.7
Accounts receivable, less allowances of $7.0 and $8.2, respectively	285.1	302.1
Inventories	483.3	461.2
Rotable spares and equipment on or available for short-term lease	133.4	138.6
Deposits, prepaids and other	53.6	71.1
Deferred tax assets	22.2	22.6
Total current assets	1,046.8	1,063.3
Property, plant and equipment, net of accumulated depreciation of $323.3 and $298.4, respectively	373.1	382.9
Other assets:
Goodwill	257.0	262.6
Intangible assets, net of accumulated amortization of $40.3 and $34.1, respectively	164.8	155.0
Equipment on long-term lease	67.7	73.1
Investment in joint ventures	49.6	49.9
Other	230.3	208.9
Total other assets	769.4	749.5
Total assets	2,189.3	2,195.7
Current liabilities:
Short-term debt	0.6	0.6
Current maturities of long-term debt	106.0	122.2
Accounts and trade notes payable	173.9	201.4
Accrued liabilities	139.2	149.0
Total current liabilities	419.7	473.2
Long-term debt, less current maturities	672.3	669.4
Deferred tax liabilities	126.6	115.9
Other liabilities and deferred income	67.3	71.2
Total noncurrent liabilities	866.2	856.5
Equity:
Preferred stock, $1.00 par value, authorized 250,000 shares; none issued
Common stock, $1.00 par value, authorized 100,000,000 shares; issued 44,722,587 and 44,849,196 shares at cost, respectively	44.7	44.8
Capital surplus	425.1	423.6
Retained earnings	571.7	541.8
Treasury stock, 5,027,738 and 4,576,368 shares at cost, respectively	(95.4)	(90.4)
Accumulated other comprehensive loss	(43.3)	(55.2)
Total AAR shareholders' equity	902.8	864.6
Noncontrolling interest	0.6	1.4
Total equity	903.4	866.0
Total liabilities and equity	$ 2,189.3	$ 2,195.7