Debt (Tables)

6 Months Ended

Nov. 30, 2019

Debt Disclosure [Abstract]

Schedule of Debt

The following table summarizes the carrying value of the Company's debt as of the dates indicated:

	November 30, 2019		May 31, 2019		November 30, 2018
Revolving Loan	—		—		—
Unsecured lines of credit (weighted average interest rates of 3.8%, 4.1% and 3.8%, respectively)	$13.5		$7.3		$13.5
UK long-term debt (average interest rate of 2.5%, n/a and n/a, respectively)	2.6		—		—
Total debt	$16.1		$7.3		$13.5
Less lines of credit, short-term debt and current     portion of long-term debt	(13.5	)	(7.3	)	(13.5	)
Total long-term debt	$2.6		$0.0		$0.0