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Equity and Other Investments and Fair Value Measurements - Equity Investment in InCarda (Details) $ / shares in Units, $ in Thousands |  |  | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Jun. 15, 2022 USD ($) $ / shares shares | Mar. 09, 2022 USD ($) | Jun. 30, 2023 USD ($) | Mar. 31, 2023 USD ($) | Sep. 30, 2020 USD ($) shares | Sep. 30, 2024 USD ($) Director | Jan. 17, 2024 USD ($) | Dec. 31, 2023 USD ($)
Equity Investment |  |  |  |  |  |  |  |
Total purchase price |  |  |  |  |  | $ 453,500 |  | $ 453,500
InCarda |  |  |  |  |  |  |  |
Equity Investment |  |  |  |  |  |  |  |
Number of investees board members | Director |  |  |  |  |  | 6 |  |
Warrant carrying value write off amount |  |  |  | $ 100 |  |  |  |
Unrealized loss from fair value changes in equity investments |  |  |  |  |  | $ 3,000 |  |
Consolidated Investees [Member] | InCarda |  |  |  |  |  |  |  |
Equity Investment |  |  |  |  |  |  |  |
Equity investment ownership percentage |  |  |  |  |  | 9.10% |  | 8.10%
InCarda Convertible Note | InCarda |  |  |  |  |  |  |  |
Equity Investment |  |  |  |  |  |  |  |
Equity and long-term investments at fair value |  |  |  |  |  | $ 400 |  |
Total purchase price |  |  |  |  |  |  | $ 400 |
Debt Instrument, annual interest rate |  |  |  |  |  |  | 8.00% |
Series C preferred stock and warrants | InCarda |  |  |  |  |  |  |  |
Equity Investment |  |  |  |  |  |  |  |
Amount of securities purchase agreement |  |  |  |  | $ 15,800 |  |  |
Warrants | InCarda |  |  |  |  |  |  |  |
Equity Investment |  |  |  |  |  |  |  |
Expiration date |  |  |  | Mar. 31, 2023 |  |  |  |
Convertible note and warrants | InCarda |  |  |  |  |  |  |  |
Equity Investment |  |  |  |  |  |  |  |
Amount of securities purchase agreement |  | $ 700 |  |  |  |  |  |
Common stock | InCarda |  |  |  |  |  |  |  |
Equity Investment |  |  |  |  |  |  |  |
Debt Conversion, Converted Instrument, Shares Issued | shares | 4,093,886 |  |  |  |  |  |  |
Series A1 preferred stock | InCarda |  |  |  |  |  |  |  |
Equity Investment |  |  |  |  |  |  |  |
Debt Conversion, Converted Instrument, Shares Issued | shares | 37,350 |  |  |  |  |  |  |
Series D 1 Preferred Stock | InCarda |  |  |  |  |  |  |  |
Equity Investment |  |  |  |  |  |  |  |
Debt Conversion, Converted Instrument, Shares Issued | shares | 8,771,780 |  |  |  |  |  |  |
Series D 2 Preferred Stock | InCarda |  |  |  |  |  |  |  |
Equity Investment |  |  |  |  |  |  |  |
Debt Conversion, Converted Instrument, Shares Issued | shares | 3,369,802 |  |  |  |  |  |  |
Series D1 Warrant | InCarda |  |  |  |  |  |  |  |
Equity Investment |  |  |  |  |  |  |  |
Debt Conversion, Converted Instrument, Shares Issued | shares | 2,490,033 |  |  |  |  |  |  |
Exercise price of warrants | $ / shares | $ 0.2 |  |  |  |  |  |  |
Series C preferred stock | InCarda |  |  |  |  |  |  |  |
Equity Investment |  |  |  |  |  |  |  |
Number of shares to be purchased under the securities purchase agreement | shares |  |  |  |  | 20,469,432 |  |  |
Maximum number of additional shares into which warrants may be converted under the securities purchase agreement | shares |  |  |  |  | 5,117,358 |  |  |
Transaction cost |  |  |  |  | $ 800 |  |  |
Equity and long-term investments at fair value |  |  |  |  |  | 4,800 |  | $ 4,800
Exercise price of warrants | $ / shares | $ 0.73 |  |  |  |  |  |  |
Series C warrants | InCarda |  |  |  |  |  |  |  |
Equity Investment |  |  |  |  |  |  |  |
Debt Conversion, Converted Instrument, Shares Issued | shares | 5,117,358 |  |  |  |  |  |  |
Series D warrants | InCarda |  |  |  |  |  |  |  |
Equity Investment |  |  |  |  |  |  |  |
Equity and long-term investments at fair value |  |  |  |  |  | 100 |  | 100
Series D Preferred Stock | InCarda |  |  |  |  |  |  |  |
Equity Investment |  |  |  |  |  |  |  |
Payments to acquire equity securities | $ 2,300 |  |  |  |  |  |  |
Series D 1 And D 2 Preferred Stock And Common Stock | InCarda |  |  |  |  |  |  |  |
Equity Investment |  |  |  |  |  |  |  |
Equity and long-term investments at fair value |  |  |  |  |  | $ 2,700 |  | $ 2,700
Backsolve Valuation | InCarda |  |  |  |  |  |  |  |
Equity Investment |  |  |  |  |  |  |  |
Impairment of equity investments |  |  | $ 2,900 |  |  |  |  |
Significant Unobservable Inputs, Level 3 | Backsolve Valuation | InCarda |  |  |  |  |  |  |  |
Equity Investment |  |  |  |  |  |  |  |
Expected holding period |  |  | 2 years |  |  |  |  |
Risk free interest rate |  |  | 4.90% |  |  |  |  |
Dividend yield |  |  | 0.00% |  |  |  |  |
Estimated volatility |  |  | 114.20% |  |  |  |  |

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