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Acquisitions - Additional Information (Detail) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
May 28, 2021
Apr. 24, 2020
Oct. 31, 2020
Apr. 30, 2020
Mar. 31, 2022
Mar. 31, 2021
Mar. 31, 2020
Restructuring Cost And Reserve [Line Items]              
In-process research and development   $ 27,000 $ 27,000        
Fair value of in-process research and development         $ 115,986    
Intangible asset, amortized useful life     15 years   15 years    
Business acquisition, transaction costs           $ 900  
Research and development expense         $ 163,403 $ 121,875 $ 98,759
Pre C A R D I A Inc              
Restructuring Cost And Reserve [Line Items]              
Percentage of interest acquired 100.00%            
Payments to acquire businesses, cash paid $ 115,200            
Cash given to repurchase of shares from shareholders 82,800            
Potential payouts payments 5,000            
Gain on previously owned minority interest 21,000            
Net asset acquired 115,200            
Holdback payment to former shareholders         $ 500    
Fair value of in-process research and development 115,500            
Net liabilities assumed 300            
Payments for remaining interest 32,400            
Research and development expense $ 116,000            
Breethe              
Restructuring Cost And Reserve [Line Items]              
Payments to acquire businesses, cash paid   55,000   $ 55,000      
Maximum | Breethe              
Restructuring Cost And Reserve [Line Items]              
Potential payouts payments   $ 55,000   $ 55,000