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v3.21.2

FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2021 USD ($) $ / shares | Sep. 30, 2021 USD ($) $ / shares | Dec. 31, 2020 USD ($)
Fair Value Asset Transfers [Abstract] |  |  |
Transfers from Level 1 to Level 2 | $ 0 | $ 0 | $ 0
Transfers from Level 2 to Level 1 | 0 | 0 | 0
Transfers into Level 3 | 0 | 0 | 0
Transfers out of Level 3 | 0 | 0 | 0
Fair Value Liability Transfers [Abstract] |  |  |
Transfers from Level 1 to Level 2 | 0 | 0 | 0
Transfers from Level 2 to Level 1 | 0 | 0 | 0
Transfers into Level 3 | 0 | 0 | 0
Transfers out of Level 3 | 0 | 0 | 0
Recurring [Member] |  |  |
Assets [Abstract] |  |  |
Mutual funds - Cash and cash equivalents | 59,896 | 59,896 |
Mutual funds - Marketable securities | 438,102 | 438,102 |
Total assets | 497,998 | 497,998 |
Liabilities [Abstract] |  |  |
Total liabilities | 8,176 | 8,176 |
Recurring [Member] | Level 1 [Member] |  |  |
Assets [Abstract] |  |  |
Mutual funds - Cash and cash equivalents | 59,896 | 59,896 | $ 36,040
Mutual funds - Marketable securities | 438,102 | 438,102 |
Total assets | 497,998 | 497,998 |
Liabilities [Abstract] |  |  |
Total liabilities | 7,782 | 7,782 |
Recurring [Member] | Level 2 [Member] |  |  |
Assets [Abstract] |  |  |
Mutual funds - Cash and cash equivalents | 0 | 0 |
Mutual funds - Marketable securities | 0 | 0 |
Total assets | 0 | 0 |
Liabilities [Abstract] |  |  |
Total liabilities | 0 | 0 |
Recurring [Member] | Level 3 [Member] |  |  |
Assets [Abstract] |  |  |
Mutual funds - Cash and cash equivalents | 0 | 0 |
Mutual funds - Marketable securities | 0 | 0 |
Total assets | 0 | 0 |
Liabilities [Abstract] |  |  |
Total liabilities | 394 | 394 |
Recurring [Member] | Private Warrants [Member] |  |  |
Liabilities [Abstract] |  |  |
Warrants | 394 | 394 |
Recurring [Member] | Private Warrants [Member] | Level 1 [Member] |  |  |
Liabilities [Abstract] |  |  |
Warrants | 0 | 0 |
Recurring [Member] | Private Warrants [Member] | Level 2 [Member] |  |  |
Liabilities [Abstract] |  |  |
Warrants | 0 | 0 |
Recurring [Member] | Private Warrants [Member] | Level 3 [Member] |  |  |
Liabilities [Abstract] |  |  |
Warrants | 394 | 394 |
Recurring [Member] | Public Warrants [Member] |  |  |
Liabilities [Abstract] |  |  |
Warrants | 7,782 | 7,782 |
Recurring [Member] | Public Warrants [Member] | Level 1 [Member] |  |  |
Liabilities [Abstract] |  |  |
Warrants | 7,782 | 7,782 |
Recurring [Member] | Public Warrants [Member] | Level 2 [Member] |  |  |
Liabilities [Abstract] |  |  |
Warrants | 0 | 0 |
Recurring [Member] | Public Warrants [Member] | Level 3 [Member] |  |  |
Liabilities [Abstract] |  |  |
Warrants | $ 0 | $ 0 |
Warrants [Member] | Private Warrants [Member] | Volatility [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Warrants measurement input | 0.523 | 0.523 |
Warrants [Member] | Private Warrants [Member] | Risk-Free Interest Rate [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Warrants measurement input | 0.0091 | 0.0091 |
Warrants [Member] | Private Warrants [Member] | Strike Price [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Warrants measurement input | $ / shares | 11.50 | 11.50 |
Warrants [Member] | Private Warrants [Member] | Share Price [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Warrants measurement input | $ / shares | 8.34 | 8.34 |
Warrants [Member] | Private Warrants [Member] | Expected Life [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Warrants term | 4 years 8 months 12 days | 4 years 8 months 12 days |

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