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INCOME TAXES - Schedule of Difference Between Income Tax Expense (Benefit) and Federal Statutory Income Tax Rate to Loss Before Income Taxes (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Income Tax Disclosure [Abstract] |  |  |
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 | 0 | 4,343 | 0
Goodwill impairment | 9,764 | 0 | 0
Other | (1,538) | 1,102 | 500
Income tax expense | $ (5,072) | $ 429 | $ 306

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- Definition Amount of reported income tax expense from difference to expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations, attributable to global intangible low-taxed income (GILTI). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-12 + Details
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