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Related-Party Transactions - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2020 | Dec. 31, 2023 | Dec. 31, 2022
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Current deferred revenue | $ 66,280 |  | $ 66,280 |  |  | $ 52,456 | $ 55,794
Payment to acquire interest in joint venture |  |  | 1,715 | $ 3,920 |  |  |
CCAW JV LLC [Member] |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Current deferred revenue | 60 |  | 60 |  |  | 1,243 |
Revenues recognized from related party | 406 | $ 397 | 1,210 | 1,179 |  |  |
Payment to acquire interest in joint venture |  |  | 1,715 |  | $ 2,940 |  |
Equity method investment, ownership percentage |  |  |  |  | 50.00% |  |
Cleveland Clinic [Member] |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Current deferred revenue | 1 |  | 1 |  |  | 43 |
Revenues recognized from related party | 336 | $ 647 | 1,232 | $ 1,836 |  |  |
Related Party [Member] | CCAW JV LLC [Member] |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Due from related parties | 26 |  | 26 |  |  | 1,602 |
Related Party [Member] | Cleveland Clinic [Member] |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Due from related parties | $ 723 |  | $ 723 |  |  | $ 24 |

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