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INCOME TAXES - Summary of Operating and Capital Loss Carryforwards and Tax Credits (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
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Singapore |  |
Operating Loss And Tax Credit Carryforwards [Line Items] |  |
Operating loss carryforwards | $ 91,924 | $ 70,815
U.K. |  |
Operating Loss And Tax Credit Carryforwards [Line Items] |  |
Operating loss carryforwards | 216,928 | 293,533
Tax credits | 504 | 2,605
U.K. | Capital loss carryforward |  |
Operating Loss And Tax Credit Carryforwards [Line Items] |  |
Capital loss carryforwards | 93 | 0
Ireland |  |
Operating Loss And Tax Credit Carryforwards [Line Items] |  |
Operating loss carryforwards | 27 | 78,154
Tax credits | 333 | 6,922
Ireland | Capital loss carryforward |  |
Operating Loss And Tax Credit Carryforwards [Line Items] |  |
Capital loss carryforwards | 1,372 | 716
Switzerland |  |
Operating Loss And Tax Credit Carryforwards [Line Items] |  |
Operating loss carryforwards | 68,573 | 123,453
U.S. |  |
Operating Loss And Tax Credit Carryforwards [Line Items] |  |
Tax credits | 1,577 | 2,074
U.S. | Capital loss carryforward |  |
Operating Loss And Tax Credit Carryforwards [Line Items] |  |
Capital loss carryforwards | $ 59,434 | $ 0

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