Condensed Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Aug. 31, 2014	May 31, 2014
Current assets:
Cash and cash equivalents	$ 81.8	$ 89.2
Accounts receivable, less allowances of $6.0 and $6.2, respectively	294.9	283.1
Inventories	532.0	495.3
Rotable spares and equipment on or available for short-term lease	137.3	137.6
Deposits, prepaids and other	79.3	81.6
Deferred tax assets	30.6	30.1
Total current assets	1,155.9	1,116.9
Property, plant and equipment, net of accumulated depreciation of $420.6 and $424.3, respectively	287.9	314.9
Other assets:
Goodwill	258.0	261.7
Intangible assets, net of accumulated amortization of $38.4 and $36.2, respectively	159.7	165.4
Equipment on or available for long-term lease	102.6	98.4
Capitalized program development costs	111.4	112.2
Investment in joint ventures	29.8	29.9
Other	100.1	100.1
Total other assets	761.6	767.7
Total assets	2,205.4	2,199.5
Current liabilities:
Current maturities of long-term debt	78.5	69.7
Accounts and trade notes payable	196.6	171.1
Accrued liabilities	141.2	161.3
Total current liabilities	416.3	402.1
Long-term debt, less current maturities	548.6	564.3
Deferred tax liabilities	163.0	162.2
Other liabilities and deferred income	73.0	70.2
Total noncurrent liabilities	784.6	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 44,993,858 and 44,674,186 shares at cost, respectively	45.0	44.7
Capital surplus	438.3	436.4
Retained earnings	657.4	646.0
Treasury stock, 5,116,217 and 5,113,939 shares at cost, respectively	(99.0)	(98.3)
Accumulated other comprehensive loss	(37.9)	(29.3)
Total AAR stockholders' equity	1,003.8	999.5
Noncontrolling interest	0.7	1.2
Total equity	1,004.5	1,000.7
Total liabilities and equity	$ 2,205.4	$ 2,199.5