Treasury Stock (Tables)

6 Months Ended

Nov. 30, 2020

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
March 2018	$	50.0
March 2020		50.0
Total current Board authorizations at June 1, 2020	$	100.0
Less repurchases made under these authorizations	$	(32.7)
Remaining Board authorization at November 30, 2020	$	67.3