FAIR VALUE MEASUREMENTS - Schedule of Financial Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Mar. 31, 2022
ASSETS:
Cash and cash equivalents	$ 320,325	$ 636,161
Available-for-sale securities	46,806	67,037
Derivative financial instruments		20
Total assets	367,131	703,218
LIABILITIES:
Derivative financial instruments	(877)	(78)
Total liabilities	(877)	(78)
U.S. government and municipal obligations
ASSETS:
Available-for-sale securities	17,738	40,863
Commercial paper
ASSETS:
Available-for-sale securities	22,292	23,353
Corporate bonds
ASSETS:
Available-for-sale securities	815	821
Certificate of deposits
ASSETS:
Available-for-sale securities	5,961	2,000
Level 1
ASSETS:
Cash and cash equivalents	274,776	617,734
Derivative financial instruments		0
Total assets	291,734	659,418
LIABILITIES:
Derivative financial instruments	0	0
Total liabilities	0	0
Level 1 \| U.S. government and municipal obligations
ASSETS:
Available-for-sale securities	16,143	40,863
Level 1 \| Commercial paper
ASSETS:
Available-for-sale securities	0	0
Level 1 \| Corporate bonds
ASSETS:
Available-for-sale securities	815	821
Level 1 \| Certificate of deposits
ASSETS:
Available-for-sale securities	0	0
Level 2
ASSETS:
Cash and cash equivalents	45,549	18,427
Derivative financial instruments		20
Total assets	75,397	43,800
LIABILITIES:
Derivative financial instruments	(877)	(78)
Total liabilities	(877)	(78)
Level 2 \| U.S. government and municipal obligations
ASSETS:
Available-for-sale securities	1,595	0
Level 2 \| Commercial paper
ASSETS:
Available-for-sale securities	22,292	23,353
Level 2 \| Corporate bonds
ASSETS:
Available-for-sale securities	0	0
Level 2 \| Certificate of deposits
ASSETS:
Available-for-sale securities	5,961	2,000
Level 3
ASSETS:
Cash and cash equivalents	0	0
Derivative financial instruments		0
Total assets	0	0
LIABILITIES:
Derivative financial instruments	0	0
Total liabilities	0	0
Level 3 \| U.S. government and municipal obligations
ASSETS:
Available-for-sale securities	0	0
Level 3 \| Commercial paper
ASSETS:
Available-for-sale securities	0	0
Level 3 \| Corporate bonds
ASSETS:
Available-for-sale securities	0	0
Level 3 \| Certificate of deposits
ASSETS:
Available-for-sale securities	$ 0	$ 0

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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