Other Intangible Assets, net (Detail) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2021	Mar. 31, 2021
Indefinite-lived intangible assets
Other intangible assets, Total cost	$ 43,104
Acquired in-process research & development	115,490
Other Intangible Assets, Gross, accumulated amortization	(1,200)	$ (750)
Other intangibles, net	41,904	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	14 years 3 months 19 days
Gross carrying amount. finite lived intangible assets, Accumulated amortization	$ (1,200)	(750)
Gross carrying amount, finite lived intangible assets net carrying value	25,800	26,250
In Process Research and Development
Indefinite-lived intangible assets
Gross carrying amount. infinite lived intangible assets, cost	16,104
Gross carrying amount, indefinite lived intangible assets net carrying value	$ 16,104	$ 15,900