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Long-term Investments - Carrying Amount and Fair Value (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022 | Jun. 30, 2021
--- | --- | --- | ---
Carrying amount and fair value of the marketable security |  |  |
Cost Basis | $ 142,000 | $ 223,385 |
Gross Unrealized Gains |  | 62,952 |
Gross Unrealized Losses | (23,732) | (46,787) |
Fair Value | 118,268 | 239,550 |
Showworld |  |  |
Carrying amount and fair value of the marketable security |  |  |
Cost Basis |  | 81,385 |
Gross Unrealized Gains |  | 62,952 |
Gross Unrealized Losses |  | 0 |
Fair Value |  | 144,337 |
Didi |  |  |
Carrying amount and fair value of the marketable security |  |  |
Cost Basis | 142,000 | 142,000 |
Gross Unrealized Gains |  | 0 |
Gross Unrealized Losses | (23,732) | (46,787) |
Fair Value | $ 118,268 | $ 95,213 | $ 142,000

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