CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	12 Months Ended
	May 31, 2018	May 31, 2017	May 31, 2016
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Net income	$ 15.6	$ 56.5	$ 47.7
Other comprehensive income, net of tax:
Currency translation adjustments, net of tax	2.0	(0.6)
Unrecognized pension and post retirement costs, net of tax expense (benefit) of $2.4 in 2018, $2.8 in 2017, and ($2.1) in 2016	5.9	5.1	(4.0)
Total other comprehensive income (loss), net of tax	7.9	4.5	(4.0)
Comprehensive income	$ 23.5	$ 61.0	$ 43.7