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FAIR VALUE MEASUREMENTS AND INVESTMENTS - Investments (Details) - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2024 | Jun. 30, 2023
Roll forward of investments |  |
Beginning balance | $ 42,907 | $ 38,169
Income recognized | 64 | 2,501
Contributions / (distributions) | (330) | 695
Foreign currency gain |  | 229
Ending balance | 42,641 | 41,594
Investments without a readily determinable fair value |  |
Roll forward of investments |  |
Beginning balance | 41,710 | 22,590
Income recognized |  | 1,786
Contributions / (distributions) |  | 425
Ending balance | 41,710 | 24,801
Fair value investments |  |
Roll forward of investments |  |
Beginning balance | 1,197 | 1,616
Income recognized | 64 | 130
Contributions / (distributions) | (330) | (360)
Ending balance | $ 931 | 1,386
Equity method investments |  |
Roll forward of investments |  |
Beginning balance |  | 13,963
Income recognized |  | 585
Contributions / (distributions) |  | 630
Foreign currency gain |  | 229
Ending balance |  | $ 15,407

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