Summary of Company Financial Assets with Maturities of Less Than 90 Days Included in Cash Equivalents (Detail) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Cash and Cash Equivalents [Line Items]
Cash equivalents	$ 530,619	$ 632,351
Money Market Funds [Member]
Cash and Cash Equivalents [Line Items]
Cash equivalents	450,407	467,553
Commercial Paper [Member]
Cash and Cash Equivalents [Line Items]
Cash equivalents		33,190
Government and Government Agency Bonds [Member]
Cash and Cash Equivalents [Line Items]
Cash equivalents	79,495	128,451
Corporate Bond [Member]
Cash and Cash Equivalents [Line Items]
Cash equivalents	$ 717	$ 3,157