Earnings Per Share - Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Aug. 31, 2019	Aug. 31, 2018
Earnings Per Share, Basic and Diluted [Abstract]
Net income (loss) attributable to Class A and Common Shares	$ (58.5)	$ (61.3)
Weighted average Shares of Class A Stock and Common Stock outstanding for basic earnings (loss) per share	34.9	35.0
Dilutive effect of Class A Stock and Common Stock potentially issuable pursuant to stock-based compensation plans	0.0	0.0
Earnings (loss) per share of Class A Stock and Common Stock:
Basic (in Dollars per share)	$ (1.68)	$ (1.75)
Diluted (in Dollars per share)	$ (1.68)	$ (1.75)