STOCKHOLDERS' EQUITY (Schedule of Components of Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Nov. 30, 2023	Nov. 30, 2022	Feb. 28, 2023
Amount
Beginning balance	$ 1,107,043	$ 991,073	$ 991,073
Ending balance	1,082,244	1,026,363
Accumulated Other Comprehensive Loss
Amount
Beginning balance	(163,992)	(195,586)	(195,586)
Ending balance	(160,412)	(196,137)
Foreign currency translation adjustments
Amount
Other comprehensive income, before reclassification	3,537	(885)	33,708
Defined benefit pension plan
Amount
Other comprehensive income, before reclassification	121	9	(1,819)
Derivative instruments
Amount
Other comprehensive income, before reclassification	$ (78)	$ 325	(443)
Amounts reclassified from accumulated other comprehensive loss
Amount
Amounts reclassified from accumulated other comprehensive loss			$ 148