FAIR VALUE MEASUREMENTS (Tables)

9 Months Ended

Dec. 31, 2021

Fair Value Disclosures [Abstract]

Schedule of Fair Value Measurements

The following tables present estimated fair values of cash, cash equivalents, restricted cash, and available-for-sale investments:

December 31, 2021	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	$	183,097	$	—	$	—	$	183,097	$	183,097	$	—	$	—	$	—
Level 1:
Money market funds	12,955		—		—		12,955		12,955		—		—		—
Subtotal	196,052		—		—		196,052		196,052		—		—		—
Level 2:
Certificate of deposit	8,641		—		—		8,641		—		8,641		—		—
Commercial paper	27,186		—		(5)		27,181		4,300		—		22,881		—
Corporate debt	28,650		1		(47)		28,604		—		—		21,670		6,933
Subtotal	64,477		1		(52)		64,426		4,300		8,641		44,551		6,933
Total assets	$	260,529	$	1	$	(52)	$	260,478	$	200,352	$	8,641	$	44,551	$	6,933

March 31, 2021	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	$	39,070	$	—	$	—	$	39,070	$	39,070	$	—	$	—	$	—
Level 1:
Money market funds	67,712		—		—		67,712		67,712		—		—		—
Treasury securities	6,177		17		—		6,194		—		—		6,194		—
Subtotal	112,959		17		—		112,976		106,782		—		6,194		—
Level 2:
Certificate of deposit	8,641		—		—		8,641		—		8,641		—		—
Commercial paper	17,656		42		—		17,698		700		—		16,998		—
Corporate debt	22,193		1		—		22,194		5,049		—		17,145		—
Subtotal	48,490		43		—		48,533		5,749		8,641		34,143		—
Total assets	$	161,449	$	60	$	—	$	161,509	$	112,531	$	8,641	$	40,337	$	—