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INCOME TAXES (Tables)

12 Months Ended

Dec. 31, 2025

Income Tax Disclosure [Abstract]

Schedule of domestic and foreign components of income (loss) before income taxes

Domestic and foreign components of loss before income taxes are as follows (in thousands):

			Year Ended December 31,
			2025						2024						2023
Domestic			$	(98,691)					$	(179,555)					$	(122,026)
Foreign			(4,797)						(9,749)						(12,676)
Loss before income taxes			$	(103,488)					$	(189,304)					$	(134,702)

Schedule of components of income tax (expense) benefit

The significant components of income tax (expense) benefit are as follows (in thousands):

			Year Ended December 31,
			2025						2024						2023
Current:
Federal			$	—					$	—					$	—
State			—						—						—
Foreign			—						—						—
Total current			—						—						—
Deferred:
Federal			—						—						—
State			—						—						—
Foreign			—						—						—
Change in uncertain tax positions			—						—						—
Change in valuation allowance			—						—						—
Total deferred			—						—						—
Income tax benefit			$	—					$	—					$	—

We adopted ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, on a prospective basis beginning with the year ended December 31, 2025. A reconciliation of the statutory U.S. federal income tax rate to our effective income tax rate for the year ended December 31, 2025 is presented accordingly as follows (dollar amounts in thousands):

			Year Ended December 31, 2025
			Amount						Percent
Statutory federal income tax rate			$	(21,732)					21.00		%
State and local income taxes, net of federal benefit			—						—		%
Tax credits
Federal research & development			(1,490)						1.44		%
Changes in valuation allowance			5,263						(5.09)		%
Nontaxable or nondeductible items
Stock compensation			5,705						(5.51)		%
Goodwill impairment			10,316						(9.97)		%
Other			321						(0.31)		%
Other reconciling items			237						(0.23)		%
Unrecognized tax benefits			373						(0.36)		%
Foreign tax effects:

United Kingdom:
Fair value adjustments			2,228						(2.15)		%
Other			(1,234)						1.19		%
Other jurisdictions			13						(0.01)		%
Total provision for income taxes			$	—					—		%

Schedule of effective tax rate

The following table summarizes the significant differences between the U.S. federal statutory tax rate and our effective tax rate for the years ended December 31, 2024 and 2023 based on the required disclosure prior to our adoption of ASU 2023-09:

			Year Ended December 31,
			2024						2023
Tax benefit at federal statutory rate			21.00		%				21.00		%
State income taxes, net of federal benefit			—		%				(0.01)		%
Change in federal and state statutory rate			1.69		%				0.01		%
Foreign rate differential			0.06		%				(0.22)		%
Goodwill impairment			(13.06)		%				(10.94)		%
Contingent liability remeasurement			(0.78)		%				(0.81)		%
Other adjustments			(1.61)		%				(1.40)		%
Valuation allowance			(7.24)		%				(7.54)		%
Income tax benefit			0.06		%				0.09		%

Schedule of deferred income taxes

Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Certain unrecognized tax benefits are presented as a reduction to related deferred tax assets in our consolidated balance sheets. The significant components of deferred income taxes as of December 31, 2025 and 2024 are as follows (in thousands):

			December 31,
			2025						2024
Deferred tax assets:
Net operating loss carry-forwards			$	176,226					$	161,418
Allowance for credit losses			860						1,474
Depreciation and amortization			17,374						23,233
Stock-based compensation			2,329						3,025
Deferred costs			—						740
Lease liability			1,345						1,867
Other tax credit carry-forward			12,742						11,625
Other			—						1,451
Total			210,876						204,833
Valuation Allowance			(209,423)						(203,377)
Total deferred tax assets, net of valuation allowance			$	1,453					$	1,456
Deferred tax liabilities:
Right of use assets			(995)						(1,457)
Deferred costs			(332)						—
Other			(126)						—
Total deferred tax liabilities			(1,453)						(1,457)
Net long-term deferred tax asset			$	—					$	—

Summary of changes in valuation allowance

We recorded a valuation allowance for deferred tax assets of $209.4 million, $203.4 million, and $189.7 million as of December 31, 2025, 2024, and 2023, respectively. The net increase of our valuation allowance each year is primarily due to the continued generation of net operating loss carryforwards.

Schedule of unrecognized tax benefits activity

The following table summarizes the activity related to our gross unrecognized tax benefits that would affect our effective tax rate, if recognized (in thousands):

			Year Ended December 31,
			2025						2024						2023
Beginning balance			$	3,550					$	2,925					$	1,606
Increase related to current year tax position			373						625						1,319
Ending balance			$	3,923					$	3,550					$	2,925

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Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.

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Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

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Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

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Tabular disclosure of income before income tax between domestic and foreign jurisdictions.

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Tabular disclosure of valuation allowances to reduce deferred tax assets to net realizable value, including identification of the deferred tax asset more likely than not will not be fully realized and the corresponding amount of the valuation allowance.

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