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Income Taxes - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Operating Loss Carryforwards [Line Items] |  |
Income tax provision | $ 0 | $ 0
Percentage of valuation allowance against deferred tax assets | 100.00% |
Increase in deferred tax assets valuation allowance | $ 2,800 | 7,000
New York State |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards net, expected to expire unutilized and unavailable to offset future federal taxable income | 191,100 |
New York City |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards net, expected to expire unutilized and unavailable to offset future federal taxable income | 175,400 |
Federal |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | 301,100 | 307,600
Operating loss carryforwards, annual limitation | 28 |
Operating loss carryforwards net, expected to expire unutilized and unavailable to offset future federal taxable income | 197,500 |
Operating loss carryforwards available for offset future taxable income | 103,600 |
Operating loss carryforwards for unlimited period | 101,900 |
Federal | Research and Development Tax Credit Carryforwards |  |
Operating Loss Carryforwards [Line Items] |  |
Tax credit carryforwards | 8,100 | 7,400
Tax credit carryforwards expected to expire unutilized | 3,000 |
Federal | Expire Between 2019 and 2037 |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards available for offset future taxable income | 1,700 |
State and City |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | 5,000 | 4,900
State | Minimum |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | 600 |
State | Maximum |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | 200,200 |
City | Minimum |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | 800 |
City | Maximum |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | 196,000 |
Foreign |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | $ 40,300 | $ 43,300

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