FAIR VALUE MEASUREMENTS (Tables)

6 Months Ended

Sep. 30, 2024

Fair Value Disclosures [Abstract]

Schedule of Financial Assets and Liabilities

The following tables present the Company's financial assets and liabilities measured on a recurring basis using the fair value hierarchy at September 30, 2024 and March 31, 2024 (in thousands):

	Fair Value Measurements at
	September 30, 2024
	Level 1		Level 2		Level 3		Total
ASSETS:
Cash and cash equivalents	$	336,539	$	26,816	$	—	$	363,355
U.S. government and municipal obligations	4,040		2,006		—		6,046
Commercial paper	—		11,617		—		11,617
Certificates of deposit	—		1,031		—		1,031
Equity investment in Napatech	19,827		—		—		19,827
Derivative financial instruments	—		132		—		132
	$	360,406	$	41,602	$	—	$	402,008
LIABILITIES:
Derivative financial instruments	$	—	$	(6)	$	—	$	(6)
	$	—	$	(6)	$	—	$	(6)

	Fair Value Measurements at
	March 31, 2024
	Level 1		Level 2		Level 3		Total
ASSETS:
Cash and cash equivalents	$	381,829	$	7,845	$	—	$	389,674
U.S. government and municipal obligations	8,985		2,506		—		11,491
Commercial paper	—		8,648		—		8,648
Certificates of deposit	—		2,807		—		2,807
Equity investment in Napatech	11,507		—		—		11,507
Derivative financial instruments	—		11		—		11
	$	402,321	$	21,817	$	—	$	424,138
LIABILITIES:
Derivative financial instruments	$	—	$	(74)	$	—	$	(74)
	$	—	$	(74)	$	—	$	(74)