Income Taxes - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Income Taxes [Line Items]
Operating loss carryforwards	$ 276,000
Deferred tax assets, valuation allowance	76,281	$ 65,166
Domestic
Income Taxes [Line Items]
Deferred tax assets, valuation allowance	67,800
Foreign
Income Taxes [Line Items]
Operating loss carryforwards	217,300
Foreign | United Kingdom
Income Taxes [Line Items]
Operating loss carryforwards	180,100
Deferred tax assets, valuation allowance	1,500
Foreign | China, Switzerland and Singapore
Income Taxes [Line Items]
Deferred tax assets, valuation allowance	6,900
State and Local Jurisdiction
Income Taxes [Line Items]
Operating loss carryforwards	180,800
Net operating loss carryforwards that do not expire	5,400
Federal
Income Taxes [Line Items]
Net operating loss carryforwards that expire	$ 8,600