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INCOME TAXES (Tables) | 12 Months Ended
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Dec. 31, 2023
Income Tax Disclosure [Abstract] |
Schedule of Domestic and Foreign Components of Loss Before Income Taxes | The domestic and foreign components of loss before income taxes were as follows (in thousands):
| Year Ended December 31,
| 2023 |  | 2022 |  | 2021
Domestic | $ | (173,375) |  |  | $ | (216,573) |  |  | $ | (185,216) |
Foreign | (89,528) |  |  | 24,724 |  |  | 7,225 |
Loss before income taxes | $ | (262,903) |  |  | $ | (191,849) |  |  | $ | (177,991) |
Schedule of Income Tax Expense (Benefit) | Income tax benefit for the year 2023 and the income tax expense for the years 2022 and 2021 consisted of the following (in thousands):
| Year Ended December 31,
| 2023 |  | 2022 |  | 2021
Income tax expense: |  |  |  |  |
Current: |  |  |  |  |
Federal | $ | — |  |  | $ | — |  |  | $ | — |
State | — |  |  | — |  |  | — |
Foreign | 186 |  |  | 500 |  |  | 886 |
Subtotal | 186 |  |  | 500 |  |  | 886 |
Deferred: |  |  |  |  |
Federal | — |  |  | — |  |  | — |
State | — |  |  | — |  |  | — |
Foreign | (5,258) |  |  | (71) |  |  | (580) |
Subtotal | (5,258) |  |  | (71) |  |  | (580) |
Income tax expense | $ | (5,072) |  |  | $ | 429 |  |  | $ | 306 |
Schedule of Difference Between Income Tax Expense (Benefit) and Federal Statutory Income Tax Rate to Loss Before Income Taxes | The difference between the income tax benefit for the year 2023 and the income tax expense for the years 2022 and 2021 and the amount computed by applying the federal statutory income tax rate to loss before income taxes is explained as follows (in thousands):
| Year Ended December 31,
| 2023 |  | 2022 |  | 2021
Tax at federal statutory rate | $ | (55,210) |  |  | $ | (40,288) |  |  | $ | (37,372) |
State taxes, net | (1,372) |  |  | (6,895) |  |  | (6,734) |
Foreign rate differential | (4,273) |  |  | 309 |  |  | 362 |
Global Intangible Low-taxed Income | 791 |  |  | 1,002 |  |  | 637 |
Non-deductible stock-based compensation | 4,770 |  |  | 3,545 |  |  | 2,770 |
Research credits | (7,020) |  |  | (6,694) |  |  | (5,230) |
Change in valuation allowance | 49,016 |  |  | 44,005 |  |  | 45,373 |
Transfer pricing settlement | — |  |  | 4,343 |  |  | — |
Goodwill impairment | 9,764 |  |  | — |  |  | — |
Other | (1,538) |  |  | 1,102 |  |  | 500 |
Income tax expense | $ | (5,072) |  |  | $ | 429 |  |  | $ | 306 |
Schedule of Deferred Tax Assets and Liabilities and Based on Tax Jurisdictions | Significant components of the Company’s deferred tax assets and liabilities are as follows (in thousands):
| December 31,
| 2023 |  | 2022
Assets: |  |  |
Deferred tax assets: |  |  |
Net operating loss carryforwards | $ | 196,719 |  |  | $ | 174,129 |
Research and development tax credit carryforwards | 54,336 |  |  | 44,264 |
Stock-based compensation | 5,983 |  |  | 7,695 |
Deferred revenue | — |  |  | 38,700 |
Capitalized research | 71,675 |  |  | 37,985 |
Fixed assets | 17,152 |  |  | 10,087 |
Intangible assets | 101 |  |  | — |
Lease liability | 8,559 |  |  | 10,074 |
Accruals and reserves | 2,409 |  |  | 1,603 |
Other | 259 |  |  | 283 |
Total deferred tax asset | 357,193 |  |  | 324,820 |
Valuation allowance | 351,430 |  |  | 301,840 |
Deferred tax assets | 5,763 |  |  | 22,980 |
Liabilities: |  |  |
Intangible assets | — |  |  | (13,512) |
Operating lease right-of-use assets | (5,763) |  |  | (14,620) |
Deferred tax liabilities | (5,763) |  |  | (28,132) |
Total net deferred tax liabilities | $ | — |  |  | $ | (5,152) |
The deferred tax assets and liabilities based on tax jurisdictions are presented on the Consolidated Balance Sheets as follows (in thousands):
| December 31,
| 2023 |  | 2022
Deferred tax assets (included in Other non-current assets on the Consolidated Balance Sheets) | $ | — |  |  | $ | 1,118 |
Deferred tax liabilities | — |  |  | (6,270) |
Net deferred tax liabilities | $ | — |  |  | $ | (5,152) |
Schedule of Unrecognized Tax Benefits | The following table summarizes the activity related to the Company’s unrecognized tax benefits (in thousands):
| December 31,
| 2023 |  | 2022 |  | 2021
Beginning balance | $ | 18,179 |  |  | $ | 15,062 |  |  | $ | 12,892 |
Additions based on tax positions related to the current year | 2,805 |  |  | 3,177 |  |  | 2,454 |
Additions for tax positions of prior years | 29 |  |  | 278 |  |  | 130 |
Reductions for tax positions of prior years | (2,693) |  |  | (338) |  |  | (414) |
Ending balance | $ | 18,320 |  |  | $ | 18,179 |  |  | $ | 15,062 |

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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-2 + Details
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