Income taxes - Reconciliation of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
|---|---|---|---|
| Deferred tax liabilities | |||
| Property, plant and equipment | $ (3,486) | $ (922) | |
| Operating lease right-of-use assets | (1,529) | (1,757) | |
| Other | (251) | (238) | |
| Total | (5,266) | (2,917) | |
| Deferred tax assets | |||
| Share-based compensation expense | 16,963 | 15,584 | |
| Intangibles | 1,324 | 2,401 | |
| Operating lease liabilities | 1,958 | 2,143 | |
| Net operating loss and expenditure credit carryforwards | 136,592 | 114,972 | |
| Capitalized research and development expenditure | 8,409 | ||
| Other | 532 | 260 | |
| Total | 165,778 | 135,360 | |
| Valuation allowance | (160,512) | (132,443) | $ (82,398) |
| Deferred tax assets, net | $ 5,266 | $ 2,917 |
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- Definition Amount of deferred tax asset attributable to deductible temporary differences from research and development costs. No definition available.
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from intangible assets. No definition available.
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from operating lease liability. No definition available.
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards and deductible tax credit carryforwards. No definition available.
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- Definition Amount of deferred tax liability attributable to taxable temporary differences. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from reserves and accruals, classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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| X | ||||||||||
- Definition Amount of deferred tax liability attributable to taxable temporary differences from leasing arrangements. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of deferred tax liability attributable to taxable temporary differences classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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