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Common Stock - Schedule of Common Stock Reserved for Future Issuance (Details) - shares shares in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Class of Stock [Line Items] |  |
Shares of common stock reserved (in shares) | 144,028 | 116,942
Equity Incentive Plan, 2019 |  |
Class of Stock [Line Items] |  |
Shares of common stock reserved (in shares) | 84,290 | 69,012
Stock options issued and outstanding |  |
Class of Stock [Line Items] |  |
Shares of common stock reserved (in shares) | 6,348 | 8,847
Outstanding and unsettled RSUs and PSUs |  |
Class of Stock [Line Items] |  |
Shares of common stock reserved (in shares) | 11,194 | 11,879
Shares available for issuance under the Employee Stock Purchase Plan (ESPP) |  |
Class of Stock [Line Items] |  |
Shares of common stock reserved (in shares) | 20,176 | 16,893
Convertible Debt | 2026 Notes |  |
Class of Stock [Line Items] |  |
Shares of common stock reserved (in shares) | 10,311 | 10,311
Convertible Debt | 2030 Notes |  |
Class of Stock [Line Items] |  |
Shares of common stock reserved (in shares) | 11,709 | 0

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