Common Stock and Stockholders' Equity - Schedule of Shares of Common Stock Reserved for Future Issuance (Detail) - shares shares in Thousands	Mar. 31, 2022	Mar. 31, 2021
Class of Stock [Line Items]
Shares of common stock reserved for future issuance (in shares)	22,226	21,106
RSUs outstanding
Class of Stock [Line Items]
Shares of common stock reserved for future issuance (in shares)	3,351	3,293
PSUs outstanding
Class of Stock [Line Items]
Shares of common stock reserved for future issuance (in shares)	320	112
Available for future stock option, RSU, and PSU grants
Class of Stock [Line Items]
Shares of common stock reserved for future issuance (in shares)	13,904	12,281
Available for future employee stock purchase plan awards
Class of Stock [Line Items]
Shares of common stock reserved for future issuance (in shares)	2,988	2,702
Common stock options outstanding
Class of Stock [Line Items]
Shares of common stock reserved for future issuance (in shares)	1,663	2,718