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Investments - Schedule Of Long Term Investments (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, 2023
Longterm Investments [Line Items]          
Beginning balance     $ 64,361 $ 74,169 $ 74,169
Additions     3,817   8,200
Proceeds     (7,012)   (498)
Fair value adjustments $ (67) $ 724 91 $ (410)  
Fair value adjustment     256   (17,460)
Transfers and other     0   (50)
Ending balance $ 61,422   $ 61,422   $ 64,361