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Income Taxes - Additional Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Operating Loss Carryforwards [Line Items] |  |
Income tax provision | $ 0 | $ 0
Percentage of valuation allowance against deferred tax assets | 100.00% |
Decrease in deferred tax assets valuation allowance | $ 1,793 | 6,540
New York State [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards net, expected to expire unutilized and unavailable to offset future federal taxable income | 191,914 |
New York City [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards net, expected to expire unutilized and unavailable to offset future federal taxable income | $ 176,137 |
Earliest Tax Year [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Open tax period | Dec. 31, 1998 |
Latest Tax Year [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Open tax period | Dec. 31, 2021 |
Federal [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | $ 277,398 | 260,622
Operating loss carryforwards, annual limitation | 28 |
Operating loss carryforwards net, expected to expire unutilized and unavailable to offset future federal taxable income | 204,458 |
Operating loss carryforwards available for offset future taxable income | 72,940 |
Operating loss carryforwards for unlimited period | 71,203 |
Federal [Member] | Expire Between 2019 and 2037 [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards available for offset future taxable income | $ 1,737 |
Federal [Member] | Earliest Tax Year [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards, expiration dates | 2022 |
Federal [Member] | Latest Tax Year [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards, expiration dates | 2037 |
Federal [Member] | Research and Development Tax Credit Carryforwards [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Tax credit carryforwards | $ 5,833 | 5,458
Tax credit carryforwards, expiration dates | 2041 |
Tax credit carryforwards expected to expire unutilized | $ 721 |
State and City [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | $ 1,766 | 1,737
Operating loss carryforwards, expiration dates | 2041 |
Foreign [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | $ 27,951 | 30,880
Federal and State [Member] | Earliest Tax Year [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Open tax period | Dec. 31, 2018 |
Federal and State [Member] | Latest Tax Year [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Open tax period | Dec. 31, 2021 |
Minimum [Member] | State and City [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | $ 24,760 | 26,414
Maximum [Member] | State and City [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | $ 193,680 | $ 192,466

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