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The Company and Significant Accounting Policies - Summary of Components of AOCI (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |  |
Balance, Beginning |  |  | $ (915) |  | $ (915) |
Other comprehensive income (loss) | $ 33 | $ 306 | (275) |  |  |
Income tax (expense) benefit |  |  | (5) |  |  |
Amounts reclassified from AOCI | 1 | (4) | 112 |  |  |
Income tax (expense) benefit |  |  | (28) |  |  |
Total other comprehensive income (loss) | 34 | 302 | (196) | $ (391) | 140 | $ (219)
Balance, Ending | (775) |  |  |  | (775) |
Foreign Currency Translation |  |  |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |  |
Balance, Beginning | (1,250) | (1,552) | (1,257) |  | (1,257) |
Other comprehensive income (loss) | 1 | 302 | (295) |  |  |
Total other comprehensive income (loss) | 1 | 302 | (295) |  |  |
Balance, Ending | (1,249) | (1,250) | (1,552) |  | (1,249) |
Marketable Securities |  |  |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |  |
Balance, Beginning | 441 | 441 | 342 |  | 342 |
Other comprehensive income (loss) | 32 | 4 | 20 |  |  |
Income tax (expense) benefit |  |  | (5) |  |  |
Amounts reclassified from AOCI | 1 | (4) | 112 |  |  |
Income tax (expense) benefit |  |  | (28) |  |  |
Total other comprehensive income (loss) | 33 |  | 99 |  |  |
Balance, Ending | 474 | 441 | 441 |  | 474 |
Accumulated Other Comprehensive Income (Loss) |  |  |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |  |
Balance, Beginning | (809) | (1,111) | (915) |  | (915) |
Balance, Ending | $ (775) | $ (809) | $ (1,111) |  | $ (775) |

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