Treasury Stock (Tables)

9 Months Ended

Feb. 28, 2019

Stockholders' Equity Attributable to Parent [Abstract]

Tabular Disclosure of an Entity's Treasury Stock

The table below represents the Board authorizations at the dates indicated:

Authorizations	Amount
July 2015	$	50.0
March 2018	50.0
Total current Board authorizations	$	100.0
Less repurchases made under these authorizations	$	(40.6	)
Remaining Board authorization at February 28, 2019	$	59.4