Debt (Tables)

3 Months Ended

Aug. 31, 2019

Debt Disclosure [Abstract]

Schedule of Debt

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

	August 31, 2019	May 31, 2019	August 31, 2018
Revolving Loan	—	—	—
Unsecured lines of credit (weighted average interest rates of 4.1%, 4.1% and 3.6%, respectively)	13.0	7.3	15.7
Total debt	$13.0	$7.3	$15.7