Stockholders' Equity - Schedule of Shares of Common Stock Reserved for Issuance (Details) - shares	Dec. 31, 2025	Dec. 31, 2024	Jul. 31, 2015
Class of Stock [Line Items]
Shares of common stock reserved for issuance (in shares)	63,524,000	38,345,000
2015 Equity Incentive Plan
Class of Stock [Line Items]
Shares of common stock reserved for issuance (in shares)			11,400,000
Employee Stock | 2015 Equity Incentive Plan
Class of Stock [Line Items]
Shares of common stock reserved for issuance (in shares)	0	15,595,000
Employee Stock | 2015 Employee Stock Purchase Plan
Class of Stock [Line Items]
Shares of common stock reserved for issuance (in shares)	5,179,000	6,868,000
Employee Stock | 2015 Amended and Restated Equity Incentive Plan
Class of Stock [Line Items]
Shares of common stock reserved for issuance (in shares)	37,963,000	0
Options outstanding
Class of Stock [Line Items]
Shares of common stock reserved for issuance (in shares)	3,083,000	3,507,000
Restricted stock units outstanding
Class of Stock [Line Items]
Shares of common stock reserved for issuance (in shares)	17,299,000	12,375,000