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Balance Sheet Details - Short-Term Investments (Details) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2025 | Dec. 31, 2024
Short-term investments |  |
Amortized cost | $ 173,625 | $ 149,072
Unrealized gains | 384 | 329
Unrealized losses | (36) | (112)
Estimated fair value | 173,973 | 149,289
U.S. treasury securities |  |
Short-term investments |  |
Amortized cost | 142,094 | 115,766
Unrealized gains | 244 | 215
Unrealized losses | (35) | (90)
Estimated fair value | $ 142,303 | $ 115,891
U.S. treasury securities | Maximum |  |
Short-term investments |  |
Maturity | 3 years | 3 years
Bank certificates of deposit |  |
Short-term investments |  |
Amortized cost | $ 8,605 | $ 5,620
Unrealized gains | 3 | 3
Estimated fair value | $ 8,608 | $ 5,623
Bank certificates of deposit | Maximum |  |
Short-term investments |  |
Maturity | 1 year | 1 year
Commercial paper |  |
Short-term investments |  |
Amortized cost | $ 1,989 |
Unrealized gains | 1 |
Estimated fair value | $ 1,990 |
Commercial paper | Maximum |  |
Short-term investments |  |
Maturity | 1 year |
Corporate notes |  |
Short-term investments |  |
Amortized cost | $ 13,040 | $ 16,852
Unrealized gains | 130 | 88
Unrealized losses |  | (2)
Estimated fair value | $ 13,170 | $ 16,938
Corporate notes | Maximum |  |
Short-term investments |  |
Maturity | 3 years | 3 years
Asset-backed securities |  |
Short-term investments |  |
Amortized cost | $ 4,887 | $ 7,824
Unrealized gains | 1 | 15
Unrealized losses | (1) | (20)
Estimated fair value | $ 4,887 | $ 7,819
Asset-backed securities | Maximum |  |
Short-term investments |  |
Maturity | 1 year | 2 years
Municipal bonds |  |
Short-term investments |  |
Amortized cost | $ 3,010 | $ 3,010
Unrealized gains | 5 | 8
Estimated fair value | $ 3,015 | $ 3,018
Municipal bonds | Maximum |  |
Short-term investments |  |
Maturity | 1 year | 1 year

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