Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Aug. 31, 2016	Aug. 31, 2015
Cash flows used in operating activities:
Net income	$ 9.5	$ 22.9
Less: (Income) Loss from discontinued operations	0.4	(15.5)
Income from continuing operations	9.9	7.4
Adjustments to reconcile net income to net cash provided from (used in) operating activities:
Depreciation and intangible amortization	12.4	13.2
Amortization of stock-based compensation	2.5	2.0
Amortization of overhaul costs	4.5	4.7
Deferred tax provision (benefit)	(0.9)	(4.0)
Gain on asset disposal	(2.6)	(1.1)
Changes in certain assets and liabilities:
Accounts receivable	9.7	(40.0)
Inventories	3.0	(22.1)
Rotable spares and equipment on or available for short-term lease	(0.7)	(0.7)
Equipment on or available for long-term lease	(17.3)	(4.2)
Accounts and trade notes payable	(8.4)	8.6
Accrued and other liabilities	(5.8)	(24.9)
Other, primarily program and overhaul costs	(6.8)	(3.3)
Net cash used in operating activities - continuing operations	(0.5)	(64.4)
Net cash provided from (used in) operating activities -discontinued operations	(0.6)	0.7
Net cash used in operating activities	(1.1)	(63.7)
Cash flows provided from (used in) investing activities:
Property, plant and equipment expenditures	(9.4)	(15.0)
Proceeds from asset disposals	3.0	6.5
Proceeds from (Investment in) aircraft joint ventures	(0.2)	2.5
Net cash used in investing activities - continuing operations	(6.6)	(6.0)
Net cash provided from (used in) investing activities - discontinued operations		27.3
Net cash provided from (used in) investing activities	(6.6)	21.3
Cash flows provided from (used in) financing activities:
Short-term borrowings (repayments), net	7.0	55.0
Reduction in long-term borrowings	(5.0)	(30.3)
Cash dividends	(2.6)	(2.6)
Purchase of treasury stock	(14.8)	(7.1)
Other	0.2	1.3
Net cash provided from (used in) financing activities - continuing operations	(15.2)	16.3
Effect of exchange rate changes on cash	(0.4)	0.1
Decrease in cash and cash equivalents	(23.3)	(26.0)
Cash and cash equivalents, beginning of period	31.2	54.7
Cash and cash equivalents, end of period	$ 7.9	$ 28.7