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Fair Value Measurements - Assets and Liabilities at Fair Value (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Mar. 31, 2022
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities $ 680,966  
Cash and Cash Equivalents    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 23,035  
Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 664,511 $ 685,304
Commercial paper | Cash and Cash Equivalents    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 16,455 2,686
Asset-backed securities | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 7,635 7,740
Certificates of deposit | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 15,303  
Commercial paper | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 52,424 9,383
Corporate notes and bonds | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 143,130 128,104
Sovereign bonds | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 7,280 8,436
U.S. government and agency securities | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 438,739 531,641
Fair Value, Recurring    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 687,546 708,062
Liabilities:    
Contingent earn-out consideration liability 21,457  
Total contingent earn-out consideration liability 21,457  
Fair Value, Recurring | Cash and Cash Equivalents    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 23,035 22,758
Fair Value, Recurring | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 664,511 685,304
Fair Value, Recurring | Commercial paper | Cash and Cash Equivalents    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 16,455 2,686
Fair Value, Recurring | Money market funds | Cash and Cash Equivalents    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 6,580 20,072
Fair Value, Recurring | Asset-backed securities | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 7,635 7,740
Fair Value, Recurring | Certificates of deposit | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 15,303  
Fair Value, Recurring | Commercial paper | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 52,424 9,383
Fair Value, Recurring | Corporate notes and bonds | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 143,130 128,104
Fair Value, Recurring | Sovereign bonds | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 7,280 8,436
Fair Value, Recurring | U.S. government and agency securities | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 438,739 531,641
Level 1 | Fair Value, Recurring    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 445,319 550,246
Liabilities:    
Contingent earn-out consideration liability 0  
Total contingent earn-out consideration liability 0  
Level 1 | Fair Value, Recurring | Cash and Cash Equivalents    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 6,580 20,072
Level 1 | Fair Value, Recurring | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 438,739 530,174
Level 1 | Fair Value, Recurring | Commercial paper | Cash and Cash Equivalents    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 0 0
Level 1 | Fair Value, Recurring | Money market funds | Cash and Cash Equivalents    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 6,580 20,072
Level 1 | Fair Value, Recurring | Asset-backed securities | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 0 0
Level 1 | Fair Value, Recurring | Certificates of deposit | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 0  
Level 1 | Fair Value, Recurring | Commercial paper | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 0 0
Level 1 | Fair Value, Recurring | Corporate notes and bonds | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 0 0
Level 1 | Fair Value, Recurring | Sovereign bonds | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 0 0
Level 1 | Fair Value, Recurring | U.S. government and agency securities | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 438,739 530,174
Level 2 | Fair Value, Recurring    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 242,227 157,816
Liabilities:    
Contingent earn-out consideration liability 0  
Total contingent earn-out consideration liability 0  
Level 2 | Fair Value, Recurring | Cash and Cash Equivalents    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 16,455 2,686
Level 2 | Fair Value, Recurring | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 225,772 155,130
Level 2 | Fair Value, Recurring | Commercial paper | Cash and Cash Equivalents    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 16,455 2,686
Level 2 | Fair Value, Recurring | Money market funds | Cash and Cash Equivalents    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 0 0
Level 2 | Fair Value, Recurring | Asset-backed securities | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 7,635 7,740
Level 2 | Fair Value, Recurring | Certificates of deposit | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 15,303  
Level 2 | Fair Value, Recurring | Commercial paper | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 52,424 9,383
Level 2 | Fair Value, Recurring | Corporate notes and bonds | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 143,130 128,104
Level 2 | Fair Value, Recurring | Sovereign bonds | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 7,280 8,436
Level 2 | Fair Value, Recurring | U.S. government and agency securities | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 0 1,467
Level 3 | Fair Value, Recurring    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 0 0
Liabilities:    
Contingent earn-out consideration liability 21,457  
Total contingent earn-out consideration liability 21,457  
Level 3 | Fair Value, Recurring | Cash and Cash Equivalents    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 0 0
Level 3 | Fair Value, Recurring | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 0 0
Level 3 | Fair Value, Recurring | Commercial paper | Cash and Cash Equivalents    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 0 0
Level 3 | Fair Value, Recurring | Money market funds | Cash and Cash Equivalents    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 0 0
Level 3 | Fair Value, Recurring | Asset-backed securities | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 0 0
Level 3 | Fair Value, Recurring | Certificates of deposit | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 0  
Level 3 | Fair Value, Recurring | Commercial paper | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 0 0
Level 3 | Fair Value, Recurring | Corporate notes and bonds | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 0 0
Level 3 | Fair Value, Recurring | Sovereign bonds | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities 0 0
Level 3 | Fair Value, Recurring | U.S. government and agency securities | Marketable Securities    
Assets, Fair Value Disclosure [Abstract]    
Cash equivalents and marketable securities $ 0 $ 0