CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	3 Months Ended
	Aug. 31, 2018	Aug. 31, 2017
Income Statement [Abstract]
Revenues	$ 218.4	$ 189.2
Operating costs and expenses:
Cost of goods sold	125.3	115.6
Selling, general and administrative expenses	163.7	159.5
Depreciation and amortization	13.2	9.2
Asset impairments	0.0	6.7
Total operating costs and expenses	302.2	291.0
Operating income (loss)	(83.8)	(101.8)
Interest income (expense), net	0.8	0.3
Other components of net periodic benefit (cost)	(0.4)	(0.1)
Earnings (loss) before income taxes	(83.4)	(101.6)
Provision (benefit) for income taxes	(22.1)	(37.9)
Net income (loss)	$ (61.3)	$ (63.7)
Basic and diluted earnings (loss) per Share of Class A and Common Stock
Basic (in Dollars per share)	$ (1.75)	$ (1.81)
Diluted (in Dollars per share)	(1.75)	(1.81)
Dividends declared per class A and common share (in Dollars per share)	$ 0.15	$ 0.15