Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Nov. 30, 2020	Nov. 30, 2019
Cash flows provided from (used in) operating activities:
Net income (loss)	$ (6.3)	$ 18.6
Less: Loss from discontinued operations	6.8	18.6
Income from continuing operations	0.5	37.2
Adjustments to reconcile income from continuing operations to net cash provided from (used in) operating activities:
Depreciation and intangible amortization	18.2	21.8
Stock-based compensation	4.5	7.1
Provision for doubtful accounts	4.4	1.4
Deferred tax provision	1.0	0.9
Loss from joint ventures	0.2
Loss on sale of business	19.5
Contract termination and restructuring costs	2.2
Impairment charges	7.0
Changes in certain assets and liabilities:
Accounts receivable	(4.8)	(11.0)
Contract assets	(7.5)	(2.8)
Inventories	30.2	(56.8)
Rotable assets supporting long-term programs	(0.9)	(19.1)
Accounts payable	8.8	42.5
Accrued and other liabilities	0.2	(17.9)
Payroll Support Program deferred credit	23.6
Deferred revenue on long-term programs	(60.4)	23.3
Other	20.7	(36.8)
Net cash provided from (used in) operating activities - continuing operations	67.4	(10.2)
Net cash used in operating activities - discontinued operations	(1.9)	(7.7)
Net cash provided from (used in) operating activities	65.5	(17.9)
Cash flows provided from (used in) investing activities:
Property, plant and equipment expenditures	(6.0)	(10.2)
Proceeds from termination of life insurance policies	10.0
Other	1.6	(1.5)
Net cash used in investing activities	5.6	(11.7)
Cash flows provided from (used in) financing activities:
Short-term borrowings , net	(390.0)	55.0
Cash dividends	(0.1)	(5.5)
Purchase of treasury stock		(4.1)
Financing costs		(1.3)
Stock compensation activity	(1.5)	(3.0)
Net cash provided from (used in) financing activities	(382.9)	41.1
Effect of exchange rate changes on cash	0.1	0.1
Increase (Decrease) in cash and cash equivalents	(311.7)	11.6
Cash, cash equivalents, and restricted cash at beginning of period	424.7	41.1
Cash, cash equivalents, and restricted cash at end of period	113.0	$ 52.7
Payroll Support Program Promissory Note
Cash flows provided from (used in) financing activities:
Proceeds from Payroll Support Program note	$ 8.7