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INCOME TAXES - Summary of Operating and Capital Loss Carryforwards and Tax Credits (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Singapore
Operating Loss And Tax Credit Carryforwards [Line Items]
Operating loss carryforwards	$ 70,815	$ 73,769
U.K.
Operating Loss And Tax Credit Carryforwards [Line Items]
Operating loss carryforwards	293,533	415,274
Tax credits	2,605	2,372
Ireland
Operating Loss And Tax Credit Carryforwards [Line Items]
Operating loss carryforwards	78,154	200,822
Tax credits	6,922	655
Ireland | Capital loss carryforward
Operating Loss And Tax Credit Carryforwards [Line Items]
Capital loss carryforwards	716	716
Switzerland
Operating Loss And Tax Credit Carryforwards [Line Items]
Operating loss carryforwards	123,453	187,057
Switzerland | Tax Carry Forward Expiry 2028
Operating Loss And Tax Credit Carryforwards [Line Items]
Operating loss carryforwards	123,453
U.S.
Operating Loss And Tax Credit Carryforwards [Line Items]
Tax credits	2,074	$ 4,592
U.S. | Tax Credit Carryforward Expiring 2032
Operating Loss And Tax Credit Carryforwards [Line Items]
Operating loss carryforwards	$ 2,074

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign tax credit carryforwards.

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