Long-term investments (Tables)

12 Months Ended

May 31, 2021

Investments All Other Investments [Abstract]

Schedule of Long-term Investments

Long-term investments are comprised of the following items:

	Fair value May 31, 2021		Fair value May 31, 2020
Equity investments measured at fair value		12,185		19,595
Equity investments under measurement alternative		5,500		—
Total other investments		17,685		19,595