Fair Value Measurements - Schedule of Debt Securities Available-for-sale (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Mar. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 566,289	$ 573,567
Unrealized Gains	79	1,859
Unrealized Losses	(6,384)	(172)
Fair Value	559,984	575,254
Certificates of deposit \| Short-term investments
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	127,500	48,100
Unrealized Gains	0	18
Unrealized Losses	(615)	(19)
Fair Value	126,885	48,099
Commercial paper \| Short-term investments
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	27,946	11,676
Unrealized Gains	0	5
Unrealized Losses	(85)	0
Fair Value	27,861	11,681
Corporate notes and bonds \| Short-term investments
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	87,259	39,620
Unrealized Gains	0	261
Unrealized Losses	(2,194)	(8)
Fair Value	85,065	39,873
U.S. treasury securities \| Short-term investments
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	323,584	474,171
Unrealized Gains	79	1,575
Unrealized Losses	(3,490)	(145)
Fair Value	$ 320,173	$ 475,601

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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