Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	May 31, 2023	May 31, 2022
Statement of Financial Position [Abstract]
Receivables, allowances	$ 3,383	$ 1,292
Other intangible assets, accumulated amortization	$ 112,202	$ 93,973
Preferred shares, without par value
Preferred shares, shares authorized	1,000,000	1,000,000
Preferred shares, shares issued	0	0
Preferred shares, shares outstanding	0	0
Common stock, without par value
Common shares, authorized	150,000,000	150,000,000
Common shares, shares issued	48,659,323	48,380,112
Common shares, shares outstanding	48,659,323	48,380,112
Accumulated other comprehensive loss, taxes	$ (5)	$ 2,049