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Goodwill And Other Intangible Other Assets, net - Additional Information (Detail) - USD ($)
6 Months Ended
Sep. 30, 2021
Mar. 31, 2021
Goodwill [Line Items]    
Goodwill $ 78,166,000 $ 78,568,000
Accumulated impairment loss, goodwill 0  
Accumulated impairment losses on IPR&D assets $ 0  
Developed Technology [Member]    
Goodwill [Line Items]    
Estimated useful life 15 years