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FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Jun. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Non-cash remeasurement of investment | $ 25,847 | $ 0 |  | $ 25,847 | $ 0
Goodwill impairment | 0 | 0 | $ 35,400 | 0 | 35,424
Restructuring-related impairment |  |  |  |  | 11,800
SumUp |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Non-cash remeasurement of investment | $ 25,800 |  |  | $ 25,800 |
Restructuring and related charges |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Restructuring-related impairment |  | $ 1,769 |  |  | $ 2,900

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