Earnings (Loss) 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, 2020	Aug. 31, 2019
Earnings Per Share, Basic and Diluted [Abstract]
Net income (loss) attributable to Class A and Common Shares	$ (39.8)	$ (58.5)
Weighted average Shares of Class A Stock and Common Stock outstanding for basic earnings (loss) per share	34.3	34.9
Earnings (loss) per share of Class A Stock and Common Stock:
Basic (in Dollars per share)	$ (1.16)	$ (1.68)
Diluted (in Dollars per share)	$ (1.16)	$ (1.68)