INTANGIBLE ASSETS - Amounts Allocated to Intangible Assets from Acquisitions (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Total intangible assets, gross	$ 155,958	$ 122,479
Accumulated amortization	(121,375)	(112,611)
Total finite-lived intangible assets, net	34,583	9,868
Developed technology, gross
Finite-Lived Intangible Assets [Line Items]
Total intangible assets, gross	102,076	72,095
Accumulated amortization	(70,743)	(63,658)
Total finite-lived intangible assets, net	31,333	8,437
Customer relationship/trade name, gross
Finite-Lived Intangible Assets [Line Items]
Total intangible assets, gross	37,882	34,384
Accumulated amortization	(34,632)	(33,953)
Total finite-lived intangible assets, net	3,250	431
Publisher/data supply relationships, gross
Finite-Lived Intangible Assets [Line Items]
Total intangible assets, gross	16,000	16,000
Accumulated amortization	(16,000)	(15,000)
Total finite-lived intangible assets, net	$ 0	$ 1,000