Condensed Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Nov. 30, 2014	May 31, 2014
Current assets:
Cash and cash equivalents	$ 92.6	$ 89.2
Accounts receivable, less allowances of $5.9 and $6.2, respectively	319.3	283.1
Inventories	554.8	495.3
Rotable spares and equipment on or available for short-term lease	139.9	137.6
Deposits, prepaids and other	77.7	81.6
Deferred tax assets	30.5	30.1
Total current assets	1,214.8	1,116.9
Property, plant and equipment, net of accumulated depreciation of $427.0 and $424.3, respectively	288.5	314.9
Other assets:
Goodwill	252.1	261.7
Intangible assets, net of accumulated amortization of $38.7 and $36.2, respectively	150.2	165.4
Equipment on or available for long-term lease	105.9	98.4
Capitalized program development costs	84.3	112.2
Investment in joint ventures	29.4	29.9
Other	102.5	100.1
Total other assets	724.4	767.7
Total assets	2,227.7	2,199.5
Current liabilities:
Current maturities of long-term debt	46.3	69.7
Accounts and trade notes payable	207.6	171.1
Accrued liabilities	146.0	161.3
Total current liabilities	399.9	402.1
Long-term debt, less current maturities	589.0	564.3
Deferred tax liabilities	169.0	162.2
Other liabilities and deferred income	67.7	70.2
Total noncurrent liabilities	825.7	796.7
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 44,958,082 and 44,674,186 shares at cost, respectively	45.0	44.7
Capital surplus	439.9	436.4
Retained earnings	669.6	646.0
Treasury stock, 5,167,088 and 5,113,939 shares at cost, respectively	(100.4)	(98.3)
Accumulated other comprehensive loss	(52.8)	(29.3)
Total AAR stockholders' equity	1,001.3	999.5
Noncontrolling interest	0.8	1.2
Total equity	1,002.1	1,000.7
Total liabilities and equity	$ 2,227.7	$ 2,199.5