Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	May 31, 2023	May 31, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	$ 424,489	$ 439,457
Ending Balance	378,296	424,489
Foreign currency translation gain (loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	1,357	3,153
Other comprehensive income, net of tax	(6,080)	(1,796)
Total comprehensive loss, net of tax	(6,080)	(1,796)
Ending Balance	$ (4,723)	$ 1,357