Other Intangible Assets, net (Detail) - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2021	Mar. 31, 2021
Indefinite-lived intangible assets
Other intangible assets, Total cost	$ 42,378
Acquired in-process research & development	115,986
Other Intangible Assets, Gross, accumulated amortization	(2,100)	$ (750)
Other intangibles, net	40,278	42,150
Developed Technology [Member]
Finite-lived intangible assets
Gross carrying amount. finite lived intangible assets, cost	$ 27,000
Indefinite-lived intangible assets
Gross carrying amount. finite lived intangible assets, weighted average useful life	13 years 10 months 24 days
Gross carrying amount. finite lived intangible assets, Accumulated amortization	$ (2,100)	(750)
Gross carrying amount, finite lived intangible assets net carrying value	24,900	26,250
In Process Research and Development
Indefinite-lived intangible assets
Gross carrying amount. infinite lived intangible assets, cost	15,378
Gross carrying amount, indefinite lived intangible assets net carrying value	$ 15,378	$ 15,900