Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Aug. 31, 2018	Aug. 31, 2017
Cash flows used in operating activities:
Net income	$ 15.1	$ 10.6
Less: Loss from discontinued operations	(3.8)	(0.4)
Income from continuing operations	18.9	11.0
Adjustments to reconcile income from continuing operations to net cash used in operating activities:
Depreciation and intangible amortization	10.1	10.2
Amortization of stock-based compensation	4.0	2.6
Deferred tax provision	1.9	0.2
Changes in certain assets and liabilities:
Accounts receivable	(20.7)	(13.9)
Inventories	(24.5)	6.7
Contract assets	0.9
Rotable assets and equipment on or available for short-term lease	6.3	(1.7)
Rotable assets supporting long-term programs	(7.9)	(11.8)
Accounts and trade notes payable	10.1	(0.5)
Accrued and other liabilities	(34.6)	(28.7)
Other	2.6	(5.0)
Net cash used in operating activities - continuing operations	(32.9)	(30.9)
Net cash provided from operating activities-discontinued operations	5.9	10.3
Net cash used in operating activities	(27.0)	(20.6)
Cash flows used in investing activities:
Property, plant and equipment expenditures	(4.2)	(5.7)
Other	(0.5)	1.2
Net cash used in investing activities-continuing operations	(4.7)	(4.5)
Net cash used in investing activities-discontinued operations	(0.3)	(2.4)
Net cash used in investing activities	(5.0)	(6.9)
Cash flows provided from financing activities:
Short-term borrowings, net	57.0	34.0
Repayments on long-term borrowings	(25.0)
Cash dividends	(2.7)	(2.6)
Purchase of treasury stock		(5.2)
Stock option exercises	6.5	6.5
Net cash provided from financing activities-continuing operations	35.8	32.7
Net cash used in financing activities-discontinued operations	(0.5)	(0.4)
Net cash provided from financing activities	35.3	32.3
Effect of exchange rate changes on cash	(0.1)
Increase in cash and cash equivalents	3.2	4.8
Cash, cash equivalents, and restricted cash at beginning of period	41.6	10.3
Cash, cash equivalents, and restricted cash at end of period	$ 44.8	$ 15.1