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Income taxes (Additional Information) (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022
Operating Loss Carryforwards [Line Items] |  |
Net Operating Loss Carryforwards, Limitations on Use | Under current law, the Company's federal NOLs generated in taxable years ending after December 31, 2017, may be carried forward indefinitely, but the deductibility of such federal NOLs is limited to 80% of the Company's taxable income annually for tax years beginning after December 31, 2018. Federal NOLs generated in taxable years ending on or prior to December 31, 2017, however, have a 20-year carryforward period, but are not subject to the 80% limitation |
Net Operating Loss Carryforwards Expiration without Limitation | $ 280,100 |
Tax Credit Carryforward, Amount | 22,474 | $ 5,477
Valuation Allowance | 145,766 | 36,094
Change in Valuation Allowance Amount | $ 109,700 |
Explanation of Change in Valuation Allowance | the additional operating loss generated by the Company and the combination of deferred tax assets as a result of the Merger |
Unrecognized Tax Benefits | $ 0 | $ 0
Penalties Charges and Interest Expense | $ 0 |
Internal Revenue Service (IRS) [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Period of Cumulative Change in Ownership | 3 years |
Maximum [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Net Operating Loss Carryforwards, Expiration Year | 2037 |
Minimum [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Net Operating Loss Carryforwards, Expiration Year | 2036 |
Minimum [Member] | Internal Revenue Service (IRS) [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Cumulative Change In Ownership Percentage | 50.00% |
State [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Net Operating Loss Carryforwards | $ 266,300 |
State [Member] | Research and Development Tax Credit Carryforward [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Tax Credit Carryforward, Amount | $ 8,700 |
State [Member] | Maximum [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Net Operating Loss Carryforwards, Expiration Year | 2043 |
State [Member] | Maximum [Member] | Research and Development Tax Credit Carryforward [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Tax Credit Carryforward, Expiration Year | 2038 |
State [Member] | Minimum [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Net Operating Loss Carryforwards, Expiration Year | 2035 |
State [Member] | Minimum [Member] | Research and Development Tax Credit Carryforward [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Tax Credit Carryforward, Expiration Year | 2032 |
Federal [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Net Operating Loss Carryforwards | $ 302,500 |
Net Operating Loss Carryforwards Expiration with Limitation | 22,400 |
Federal [Member] | Research and Development Tax Credit Carryforward [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Tax Credit Carryforward, Amount | $ 15,600 |
Federal [Member] | Maximum [Member] | Research and Development Tax Credit Carryforward [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Tax Credit Carryforward, Expiration Year | 2043 |
Federal [Member] | Minimum [Member] | Research and Development Tax Credit Carryforward [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Tax Credit Carryforward, Expiration Year | 2036 |

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