Stockholders' Equity - Schedule of Future Issuance (Detail) - shares shares in Thousands	Mar. 31, 2024	Dec. 31, 2023
Class of Stock [Line Items]
Common stock shares reserved for future issuance (in shares)	204,347	175,012
Stock options outstanding
Class of Stock [Line Items]
Common stock shares reserved for future issuance (in shares)	37,488	40,159
Restricted Stock Units (“RSUs”) outstanding
Class of Stock [Line Items]
Common stock shares reserved for future issuance (in shares)	38,757	39,846
Performance Shares | Performance Stock Units (“PSUs”)
Class of Stock [Line Items]
Common stock shares reserved for future issuance (in shares)	2,505	905
Performance Shares | CEO Long Term Performance Award
Class of Stock [Line Items]
Common stock shares reserved for future issuance (in shares)	0	11,500
2020 Equity Incentive Plan
Class of Stock [Line Items]
Common stock shares reserved for future issuance (in shares)	103,908	66,114
2020 Employee Stock Purchase Plan
Class of Stock [Line Items]
Common stock shares reserved for future issuance (in shares)	21,301	16,075
Stock warrants outstanding
Class of Stock [Line Items]
Common stock shares reserved for future issuance (in shares)	264	264
Unregistered stock awards (“RSAs”) outstanding
Class of Stock [Line Items]
Common stock shares reserved for future issuance (in shares)	124	149