Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands |
12 Months Ended | |||
|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 19, 2017 |
|
| Income Tax Disclosure [Line Items] | ||||
| Valuation allowance | $ 94,644 | $ 93,862 | $ 94,189 | |
| Net deferred tax asset | 0 | 0 | 0 | |
| Change in valuation allowance | 800 | (300) | 14,200 | |
| Federal research tax credit carryforwards | $ 11,900 | 11,800 | 11,500 | $ 700 |
| Income tax examination, description | The Company is subject to income taxes in the United States and Israel and Australia. The Company files income tax returns in the U.S. and in several states. The federal and state tax returns are generally subject to tax examination by taxing authorities for tax years December 31, 2019 to present. To the extent the Company has tax attribute carryforwards, the tax years in which the attribute was generated may still be adjusted upon examination by the Internal Revenue Service or state tax authorities to the extent utilized in a future period. The Israeli income tax returns remain open to examination beginning in 2013 to present. The Australia income tax returns remain open to examination beginning in 2021 to present. If and when the Company claims NOL carryforwards from any prior years against future taxable income, those losses may be examined by the taxing authorities. | |||
| Earliest Tax Year [Member] | ||||
| Income Tax Disclosure [Line Items] | ||||
| Federal research tax credit expiry, beginning period | 2026 | |||
| Latest Tax Year [Member] | ||||
| Income Tax Disclosure [Line Items] | ||||
| Federal research tax credit expiry, beginning period | 2044 | |||
| State [Member] | ||||
| Income Tax Disclosure [Line Items] | ||||
| Valuation allowance | $ 94,600 | 93,900 | 94,200 | |
| Net operating loss carryforwards | 75,200 | 74,900 | 74,100 | |
| Israel Tax Authority [Member] | ||||
| Income Tax Disclosure [Line Items] | ||||
| Net operating loss carryforwards | 126,200 | 121,800 | 117,600 | |
| Domestic Tax Jurisdiction [Member] | ||||
| Income Tax Disclosure [Line Items] | ||||
| Net operating loss carryforwards | 190,100 | $ 181,000 | $ 181,800 | $ 77,200 |
| U.S. federal NOL carryforwards, not subject to expiration | $ 101,100 | |||
| Net operating loss carryforwards eligible to offset taxable income, maximum | 80.00% | |||
| Domestic Tax Jurisdiction [Member] | Earliest Tax Year [Member] | ||||
| Income Tax Disclosure [Line Items] | ||||
| U.S. net operating loss expiry, beginning period | 2024 | |||
| Domestic Tax Jurisdiction [Member] | Latest Tax Year [Member] | ||||
| Income Tax Disclosure [Line Items] | ||||
| U.S. net operating loss expiry, beginning period | 2037 | |||