Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended			12 Months Ended
	May 31, 2020	May 31, 2019	Feb. 28, 2018	Feb. 28, 2018
Income Tax Disclosure [Abstract]
One-time charge from Tax Act				$ (17,900)
Income tax expense (benefit) as a percent of income before income taxes	13.00%	7.60%
Income tax expense (benefit)	$ (6,917)	$ 3,337	$ 9,400
One-time income tax benefit	$ 9,400