Goodwill and Purchased Intangibles Assets - Schedule of Purchased Intangible Assets Subject to Amortization (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Mar. 31, 2022
Acquired Finite-Lived Intangible Assets [Line Items]
Net Carrying Amount	$ 13,344	$ 15,636
Developed technology
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	27,500	27,500
Accumulated Amortization	(14,156)	(11,864)
Net Carrying Amount	$ 13,344	$ 15,636