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GOODWILL AND INTANGIBLE ASSETS - Schedule of Intangible Liabilities (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
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Goodwill and Intangible Assets Disclosure [Abstract] |  |
Gross Carrying Value | $ 20,000 | $ 20,000
Accumulated Amortization | 8,561 | 7,798
Net Carrying Value | $ 11,439 | $ 12,202

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- Definition Intangible Liabilities, Accumulated Amortization + References No definition available. + Details
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- Definition Intangible Liabilities, Gross + References No definition available. + Details
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- Definition Intangible Liabilities, Net + References No definition available. + Details
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Namespace Prefix: | up_
Data Type: | xbrli:monetaryItemType
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Period Type: | instant

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- References No definition available. + Details
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