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The Company and Significant Accounting Policies - Impairment - Additional Information (Detail) - USD ($) | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Mar. 31, 2024 | Sep. 30, 2024 | Dec. 31, 2023 | Oct. 01, 2023
Accounting Policies [Line Items] |  |  |  |
Goodwill |  | $ 50,673,000 | $ 50,674,000 |
Meta Platforms |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Impairment charges related to intangible subject to amortization | $ 14,000,000 |  |  |
Customer Concentration Risk | Revenue | Meta Platforms |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Concentration risk percentage |  |  | 53.00% |
Digital |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Goodwill |  |  |  | $ 50,100,000
Percentage of fair value of assets |  | 28.00% |  |
Impairment of goodwill |  | $ 35,400,000 | $ 0 |

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