Condensed Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 30, 2016	Nov. 30, 2015	Nov. 30, 2016	Nov. 30, 2015
Sales:
Sales from products	$ 231.3	$ 244.1	$ 445.2	$ 456.1
Sales from services	192.5	187.4	383.4	362.1
Total sales	423.8	431.5	828.6	818.2
Cost and operating expenses:
Cost of products	197.3	208.2	376.8	386.4
Cost of services	160.3	164.2	324.1	318.8
Selling, general and administrative	46.3	43.1	91.1	83.1
Total costs and operating expenses	403.9	415.5	792.0	788.3
Loss from joint ventures		(0.1)		(0.4)
Operating income	19.9	15.9	36.6	29.5
Loss on extinguishment of debt		(0.1)		(0.4)
Interest expense	(1.2)	(1.5)	(2.5)	(3.5)
Interest income	0.1		0.1	0.1
Income from continuing operations before provision for income taxes	18.8	14.3	34.2	25.7
Provision for income taxes	6.7	5.1	12.2	9.1
Income from continuing operations	12.1	9.2	22.0	16.6
Discontinued operations:
Operating loss		(2.3)	(0.6)	(6.0)
Gain from contingent consideration				27.7
Provision for income taxes (benefit)		(1.1)	(0.2)	7.4
Income (Loss) from discontinued operations		(1.2)	(0.4)	14.3
Net income	$ 12.1	$ 8.0	$ 21.6	$ 30.9
Earnings per share - basic:
Earnings from continuing operations	$ 0.35	$ 0.26	$ 0.64	$ 0.47
Earnings (Loss) from discontinued operations		(0.03)	(0.01)	0.42
Earnings per share - basic	0.35	0.23	0.63	0.89
Earnings per share - diluted:
Earnings from continuing operations	0.35	0.26	0.64	0.47
Earnings (Loss) from discontinued operations		(0.03)	(0.01)	0.42
Earnings per share - diluted	$ 0.35	$ 0.23	$ 0.63	$ 0.89