Condensed Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Aug. 31, 2013	May 31, 2013
Current assets:
Cash	$ 90.9	$ 75.3
Accounts receivable, less allowances of $7.8 and $8.7, respectively	285.7	297.4
Inventories	473.3	453.7
Rotable spares and equipment on or available for short-term lease	122.6	129.2
Deposits, prepaids and other	60.5	60.1
Deferred tax assets	18.0	18.0
Total current assets	1,051.0	1,033.7
Property, plant and equipment, net of accumulated depreciation of $374.0 and $354.5, respectively	351.2	361.7
Other assets:
Goodwill	257.0	255.6
Intangible assets, net of accumulated depreciation of $27.8 and $25.1, respectively	157.7	157.8
Equipment on long-term lease	64.5	64.7
Capitalized program development costs	109.3	124.9
Investment in joint ventures	31.1	31.8
Other	107.4	106.7
Total other assets	727.0	741.5
Total assets	2,129.2	2,136.9
Current liabilities:
Current maturities of long-term debt	86.8	86.4
Accounts payable	148.2	149.3
Accrued liabilities	128.4	153.3
Total current liabilities	363.4	389.0
Long-term debt, less current maturities	615.4	622.2
Deferred tax liabilities	146.8	138.2
Other liabilities and deferred income	64.2	68.0
Total noncurrent liabilities	826.4	828.4
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 44,689,937 and 44,691,437 shares at cost, respectively	44.7	44.7
Capital surplus	429.3	431.6
Retained earnings	599.8	584.9
Treasury stock, 5,107,851 and 5,309,252 shares at cost, respectively	(96.9)	(100.1)
Accumulated other comprehensive loss	(38.6)	(42.5)
Total AAR stockholders' equity	938.3	918.6
Noncontrolling interest	1.1	0.9
Total equity	939.4	919.5
Total liabilities and equity	$ 2,129.2	$ 2,136.9