GOODWILL - Changes in Goodwill (Details) - USD ($)	3 Months Ended	12 Months Ended
	Sep. 30, 2023	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Goodwill
Goodwill at the beginning of year		$ 363,116,000	$ 363,845,000
Impairment	$ (2,900,000)	(2,875,000)	0	$ 0
Change in foreign currency translation adjustment		(126,000)	(524,000)
Goodwill at the end of year		501,756,000	363,116,000	$ 363,845,000
Diablo.AI, Inc.
Goodwill
Purchase price accounting adjustment related to acquisition of Diablo			$ (205,000)
Habu
Goodwill
Acquisition of Habu		$ 141,641,000