Employee Benefit Plans (Details) - Schedule of changes in fair value level 3 assets - USD ($) $ in Millions	12 Months Ended
	May 31, 2020	May 31, 2019
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	$ 5.5	$ 5.7
Actual Return on Plan Assets:
Relating to assets still held at year-end	0.2	0.1
Relating to assets sold during the year	0.0
Purchases, sales and settlements, net	0.0
Transfers in and/or out of Level 3	0.0
Foreign currency translation	(0.1)	0.3
Ending Balance	$ 5.6	$ 5.5