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INCOME TAXES (Tables) | 12 Months Ended
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Dec. 31, 2022
Income Tax Disclosure [Abstract] |
Schedule of Income (Loss) Before Income Tax Provision |
Income (loss) before income tax: | Year ended December 31,
(in thousands) | 2022 |  | 2021 |  | 2020
Domestic | $ | 24,680 |  |  | $ | (5,688) |  |  | $ | (42,905) |
Foreign | 19,805 |  |  | 14,559 |  |  | 16,688 |
Income (loss) before income taxes | $ | 44,485 |  |  | $ | 8,871 |  |  | $ | (26,217) |
Schedule of Provision for (Benefit from) Income Taxes |
Provision for (benefit from) income taxes: | Year ended December 31,
(in thousands) | 2022 |  | 2021 |  | 2020
Current: |  |  |  |  |
Federal | $ | 4,443 |  |  | $ | 4 |  |  | $ | 124 |
State | 3,236 |  |  | 85 |  |  | 93 |
Foreign | 3,730 |  |  | 2,469 |  |  | 2,103 |
Deferred: |  |  |  |  |
Foreign | 4,894 |  |  | (6,941) |  |  | 734 |
Total provision for (benefit from) income taxes | $ | 16,303 |  |  | $ | (4,383) |  |  | $ | 3,054 |
Schedule of Reconciliation of Provision for (Benefit from) Income Taxes | The difference between the tax provision at the statutory federal income tax rate and the provision for (benefit from) income tax as a percentage of income (loss) before income taxes (effective tax rate) for each period was as follows:
| Year ended December 31,
| 2022 |  | 2021 |  | 2020
Statutory U.S. federal income tax rate | 21 | % |  | 21 | % |  | 21 | %
Increase (reduction) in rate resulting from: |  |  |  |  |
State Taxes | 7 | % |  | — | % |  | — | %
Differential in rates on foreign earnings | 1 | % |  | 42 | % |  | (11) | %
Change in valuation allowance | 15 | % |  | (113) | % |  | (16) | %
Change in liabilities for uncertain tax positions | — | % |  | (2) | % |  | — | %
Non-deductible stock-based compensation | 4 | % |  | 11 | % |  | (2) | %
Permanent differences | (1) | % |  | — | % |  | (2) | %
Adjustments related to tax positions taken during prior years | (8) | % |  | (3) | % |  | — | %
Research and development credits | (2) | % |  | (10) | % |  | — | %
Other | — | % |  | 3 | % |  | (2) | %
Effective tax rate | 37 | % |  | (49) | % |  | (12) | %
Schedule of Components of Deferred Tax Assets and Liabilities | The components of deferred taxes are as follows:
| As of December 31,
(in thousands) | 2022 |  | 2021
Deferred tax assets: |  |  |
Reserves and accruals | $ | 27,376 |  |  | $ | 24,833 |
Net operating loss carryforwards | 16,032 |  |  | 33,070 |
Research and development credit carryforwards | 28,952 |  |  | 39,730 |
Deferred stock-based compensation | 1,376 |  |  | 1,354 |
Intangibles | 6,384 |  |  | 7,321 |
Operating lease liabilities | 7,423 |  |  | 8,697 |
Capitalized research and development expenses | 36,210 |  |  | 9,681 |
Other | 1,139 |  |  | 31 |
Gross deferred tax assets | 124,892 |  |  | 124,717 |
Valuation allowance | (101,020) |  |  | (90,247) |
Gross deferred tax assets after valuation allowance | 23,872 |  |  | 34,470 |
Deferred tax liabilities: |  |  |
Depreciation | (5,971) |  |  | (6,597) |
Convertible notes | — |  |  | (3,652) |
Operating lease right-of-use assets | (6,125) |  |  | (7,402) |
Gross deferred tax liabilities | (12,096) |  |  | (17,651) |
Net deferred tax assets | $ | 11,776 |  |  | $ | 16,819 |
Schedule of Activities Related to Valuation Allowance | The following table summarizes the activities related to the Company’s valuation allowance:
| Year ended December 31,
(in thousands) | 2022 |  | 2021 |  | 2020
Balance at beginning of period | $ | 90,247 |  |  | $ | 99,585 |  |  | $ | 95,518 |
Additions | 10,773 |  |  | 310 |  |  | 6,690 |
Deductions | — |  |  | (9,648) |  |  | (2,623) |
Balance at end of period | $ | 101,020 |  |  | $ | 90,247 |  |  | $ | 99,585 |
Schedule of Activities Related to Gross Unrecognized Tax Benefits | The following table summarizes the activities related to the Company’s gross unrecognized tax benefits:
| Year ended December 31,
(in millions) | 2022 |  | 2021 |  | 2020
Balance at beginning of period | $ | 13.8 |  |  | $ | 17.6 |  |  | $ | 17.0 |
Increase in balance related to tax positions taken during current year | 0.3 |  |  | 0.3 |  |  | 0.3 |
Decrease in balance as a result of a lapse of the applicable statutes of limitations | — |  |  | (0.2) |  |  | — |
Increase in balance related to tax positions taken during prior years | — |  |  | — |  |  | 0.3 |
Decrease in balance related to tax positions taken during prior years | (3.0) |  |  | (3.9) |  |  | — |
Balance at end of period | $ | 11.1 |  |  | $ | 13.8 |  |  | $ | 17.6 |

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