CONSOLIDATED BALANCE SHEETS (USD $) In Thousands	May 31, 2011	May 31, 2010
Current assets:
Cash and cash equivalents	$ 57,433	$ 79,370
Accounts receivable	287,435	238,466
Inventories	363,399	356,983
Rotable spares and equipment on or available for short-term lease	143,875	122,823
Deposits, prepaids and other	38,260	27,194
Deferred tax assets	23,583	21,495
Total current assets	913,985	846,331
Property, plant and equipment, at cost:
Land	4,842	4,842
Buildings and improvements	95,201	89,547
Equipment, furniture and fixtures	459,432	319,396
Property, plant and equipment, gross	559,475	413,785
Accumulated depreciation	(235,098)	(194,139)
Property, plant and equipment, net	324,377	219,646
Other assets:
Goodwill and other intangible assets, net	181,097	190,710
Equipment on long-term lease	93,387	109,564
Investment in joint ventures	48,743	48,433
Other	142,138	85,497
Total other assets	465,365	434,204
Total assets	1,703,727	1,500,181
Current liabilities:
Short-term debt	100,000	45,009
Current maturities of long-term debt	11,323	53,292
Current maturities of non-recourse long-term debt	823	757
Current maturities of long-term capital lease obligations	1,929	1,775
Accounts and trade notes payable	185,096	114,906
Accrued liabilities	116,839	108,950
Total current liabilities	416,010	324,689
Long-term debt, less current maturities	313,981	317,594
Non-recourse debt	11,032	11,855
Capital lease obligations	4,789	6,742
Deferred tax liabilities	98,322	57,335
Other liabilities and deferred income	24,304	35,616
Total noncurrent liabilities	452,428	429,142
Equity:
Preferred stock, $1.00 par value, authorized 250 shares; none issued
Common stock, $1.00 par value, authorized 100,000 shares; issued 44,986 and 44,870 shares, respectively	44,986	44,870
Capital surplus	423,805	416,842
Retained earnings	486,130	419,287
Treasury stock, 5,205 and 5,386 shares at cost, respectively	(100,431)	(104,447)
Accumulated other comprehensive loss	(18,645)	(29,646)
Total AAR shareholders' equity	835,845	746,906
Noncontrolling interest	(556)	(556)
Total equity	835,289	746,350
Total liabilities and equity	$ 1,703,727	$ 1,500,181