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INCOME TAXES (Tables) | 12 Months Ended
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Dec. 31, 2023
Income Tax Disclosure [Abstract] |
Schedule of income before income tax, domestic and foreign | The components of loss before income taxes and non-controlling interests consist of the following for the years ended December 31:
(in thousands) |  | 2023 |  | 2022
Domestic - Luxembourg |  | $ | (56,506) |  |  | $ | (47,432) |
Foreign - U.S. |  | (453) |  |  | 912 |
Foreign - non-U.S. |  | 4,611 |  |  | (1,047) |
Total |  | $ | (52,348) |  |  | $ | (47,567) |
Schedule of income tax provision (benefit) | The income tax provision consists of the following for the years ended December 31:
(in thousands) |  | 2023 |  | 2022
Current: |  |  |  |
Domestic - Luxembourg |  | $ | — |  |  | $ | (570) |
Foreign - U.S. federal |  | (1,014) |  |  | 547 |
Foreign - U.S. state |  | (206) |  |  | 497 |
Foreign - non-U.S. |  | (2,449) |  |  | (4,642) |
|  | $ | (3,669) |  |  | $ | (4,168) |
Deferred: |  |  |  |
Domestic - Luxembourg |  | $ | — |  |  | $ | — |
Foreign - U.S. federal |  | 257 |  |  | (495) |
Foreign - U.S. state |  | (11) |  |  | (400) |
Foreign - non-U.S. |  | (291) |  |  | (203) |
|  | $ | (45) |  |  | $ | (1,098) |
Income tax provision |  | $ | (3,714) |  |  | $ | (5,266) |
Summary of tax effects of the temporary differences | A summary of the tax effects of the temporary differences is as follows for the years ended December 31:
(in thousands) |  | 2023 |  | 2022
Non-current deferred tax assets: |  |  |  |
Net operating loss carryforwards |  | $ | 481,741 |  |  | $ | 383,908 |
U.S. federal and state tax credits |  | 228 |  |  | 282 |
Other non-U.S. deferred tax assets |  | 12,487 |  |  | 12,775 |
Share-based compensation |  | 1,420 |  |  | 1,317 |
Accrued expenses |  | 1,931 |  |  | 1,369 |
Capital loss carryforward |  | 10,046 |  |  | 10,112 |
Depreciation |  | 8 |  |  | 144 |
Non-current deferred tax liabilities: |  |  |  |
Intangible assets |  | (9,122) |  |  | (9,082) |
Other non-U.S. deferred tax liability |  | (433) |  |  | (420) |
Other |  | (415) |  |  | (244) |
|  | 497,891 |  |  | 400,161 |
Valuation allowance |  | (501,927) |  |  | (404,141) |
Non-current deferred tax liabilities, net |  | $ | (4,036) |  |  | $ | (3,980) |
Schedule of the reconciliation of income tax provision to the Luxembourg statutory income tax rate | The following table reconciles the Luxembourg statutory tax rate to our effective tax rate for the years ended December 31:
|  | 2023 |  | 2022
Statutory tax rate |  | 24.94 | % |  | 24.94 | %
Change in valuation allowance |  | (186.89) |  |  | (32.14) |
State tax expense |  | (0.33) |  |  | (0.01) |
Uncertain tax positions |  | (2.98) |  |  | (6.80) |
Tax rate differences on foreign earnings |  | (1.58) |  |  | (1.21) |
Tax exempt income |  | 0.18 |  |  | 0.19 |
Provision to return |  | — |  |  | 3.45 |
Loss on treasury shares |  | 160.11 |  |  | 3.91 |
Other |  | (0.54) |  |  | (3.40) |
Effective tax rate |  | (7.09) | % |  | (11.07) | %
Summary of income tax contingencies | The following table summarizes changes in unrecognized tax benefits during the years ended December 31:
(in thousands) |  | 2023 |  | 2022
Amount of unrecognized tax benefits as of the beginning of the year |  | $ | 9,015 |  |  | $ | 9,023 |
Decreases as a result of tax positions taken in a prior period |  | (65) |  |  | (1,595) |
Increases as a result of tax positions taken in a prior period |  | — |  |  | 11 |
Increases as a result of tax positions taken in the current period |  | 258 |  |  | 1,576 |
Amount of unrecognized tax benefits as of the end of the year |  | $ | 9,208 |  |  | $ | 9,015 |

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- Definition Tabular disclosure for tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities and other income tax contingencies. Includes, but is not limited to, interest and penalties, reconciliation of unrecognized tax benefits, unrecognized tax benefits that would affect the effective tax rate, tax years that remain subject to examination by tax jurisdictions, and information about positions for which it is reasonably possible that amounts unrecognized will significantly change within 12 months. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-15 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15A -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-15A Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 19 -SubTopic 10 -Topic 740 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-19 + Details
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