FAIR VALUE MEASUREMENTS (Tables)

9 Months Ended

Dec. 31, 2020

Fair Value Disclosures [Abstract]

Schedule of Fair Value Measurements

Cash, cash equivalents, restricted cash, and available-for-sale investments are as follows (in thousands):

As of December 31, 2020	Amortized Costs		Gross Unrealized Gain		Gross Unrealized Loss		Estimated Fair Value		Cash and Cash Equivalents		Restricted Cash (Current & Non-Current)		Short-Term Investments		Long-Term Investments
Cash	$	40,656	$	—	$	—	$	40,656	$	33,739	$	6,917	$	—	$	—
Level 1:
Money market funds	71,232		—		—		71,232		71,232		—		—		—
Treasury securities	6,181		42		—		6,223		—		—		6,223		—
Subtotal	118,069		42		—		118,111		104,971		6,917		6,223		—
Level 2:
Certificate of deposit	8,641		—		—		8,641		—		8,641		—		—
Commercial paper	16,194		—		(1)		16,193		1,300		—		14,893		—
Corporate debt	25,028		79		(1)		25,106		606		—		20,622		3,878
Subtotal	49,863		79		(2)		49,940		1,906		8,641		35,515		3,878
Total assets	$	167,932	$	121	$	(2)	$	168,051	$	106,877	$	15,558	$	41,738	$	3,878

As of March 31, 2020	Amortized Costs		Gross Unrealized Gain		Gross Unrealized Loss		Estimated Fair Value		Cash and Cash Equivalents		Restricted Cash (Current & Non-Current)		Short-Term Investments		Long-Term Investments
Cash	$	31,378	$	—	$	—	$	31,378	$	21,002	$	10,376	$	—	$	—
Level 1:
Money market funds	110,796		—		—		110,796		110,796		—		—		—
Treasury securities	6,192		116		—		6,308		—		—		—		6,308
Subtotal	148,366		116		—		148,482		131,798		10,376		—		6,308
Level 2:
Certificate of deposit	8,641		—		—		8,641		—		8,641		—		—
Commercial paper	14,979		6		—		14,985		5,596		—		9,389		—
Corporate debt	34,153		32		(341)		33,844		—		—		24,069		9,775
Subtotal	57,773		38		(341)		57,470		5,596		8,641		33,458		9,775
Total assets	$	206,139	$	154	$	(341)	$	205,952	$	137,394	$	19,017	$	33,458	$	16,083