Leases - Supplemental Statement of Operations Information (Details) - USD ($) $ in Thousands	12 Months Ended
	May 31, 2025	May 31, 2024	May 31, 2023
Lessee, Lease, Description [Line Items]
Non-cash lease expense	$ 2,632	$ 2,549	$ 2,694
Cost of sales
Lessee, Lease, Description [Line Items]
Non-cash lease expense	896	866	881
Research and development
Lessee, Lease, Description [Line Items]
Non-cash lease expense	372	195	193
Sales and marketing
Lessee, Lease, Description [Line Items]
Non-cash lease expense	167	161	162
General and administrative
Lessee, Lease, Description [Line Items]
Non-cash lease expense	1,155	1,327	1,458
Acquisition, restructuring and other items, net
Lessee, Lease, Description [Line Items]
Non-cash lease expense	$ 42	$ 0	$ 0