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Balance Sheet Account Details - Available-for-Sale Debt Securities in an Unrealized Loss Position (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Gross Unrealized Losses |  |
Less than 12 months | $ (10) | $ (125)
12 months or greater | (4) | (37)
Total | (14) | (162)
Estimated Fair Value |  |
Less than 12 months | 17,809 | 12,354
12 months or greater | 2,949 | 947
Total | 20,758 | 13,301
Bank deposits |  |
Gross Unrealized Losses |  |
Less than 12 months | (1) | (34)
12 months or greater | 0 | 0
Total | (1) | (34)
Estimated Fair Value |  |
Less than 12 months | 4,175 | 2,470
12 months or greater | 0 | 0
Total | 4,175 | 2,470
Corporate bonds |  |
Gross Unrealized Losses |  |
Less than 12 months | (1) | (21)
12 months or greater | (1) | (37)
Total | (2) | (58)
Estimated Fair Value |  |
Less than 12 months | 1,410 | 3,887
12 months or greater | 1,447 | 947
Total | 2,857 | 4,834
Commercial paper |  |
Gross Unrealized Losses |  |
Less than 12 months | (4) | 0
12 months or greater | 0 | 0
Total | (4) | 0
Estimated Fair Value |  |
Less than 12 months | 10,222 | 3,836
12 months or greater | 0 | 0
Total | 10,222 | 3,836
Municipal bonds |  |
Gross Unrealized Losses |  |
Less than 12 months | (4) |
12 months or greater | 0 |
Total | (4) |
Estimated Fair Value |  |
Less than 12 months | 1,004 |
12 months or greater | 0 |
Total | 1,004 |
U.S. government securities |  |
Gross Unrealized Losses |  |
Less than 12 months | 0 | (70)
12 months or greater | (3) | 0
Total | (3) | (70)
Estimated Fair Value |  |
Less than 12 months | 998 | 2,161
12 months or greater | 1,502 | 0
Total | $ 2,500 | $ 2,161

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