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SHARE-BASED COMPENSATION - Narrative (Details) shares in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2022 USD ($) shares | Mar. 31, 2021 USD ($) | Oct. 31, 2021 tranche shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total share-based compensation expense | $ 6,600,000 | $ 2,300,000 |
Unrecognized compensation cost | 2,100,000 |  |
Short Term Warrant |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of tranches | tranche |  |  | 3
Long Term Warrant |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of tranches | tranche |  |  | 5
Warrant |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total share-based compensation expense | 5,300,000 | 0 |
Unrecognized compensation cost | $ 30,300,000 |  |
Unrecognized compensation cost, period of recognition | 2 years |  |
Stock option expense |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total share-based compensation expense | $ 500,000 | 1,700,000 |
Unrecognized compensation cost, period of recognition | 4 years |  |
Unrecognized compensation cost, options | $ 4,100,000 |  |
Restricted stock unit expense |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total share-based compensation expense | 6,100,000 | $ 600,000 |
Unrecognized compensation cost | $ 46,400,000 |  |
Unrecognized compensation cost, period of recognition | 4 years |  |
Class A Shares |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Shares issued (in shares) | shares |  |  | 129.1
Carvana |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of tranches | tranche |  |  | 8
2020 Equity Incentive Plan |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Shares available for issuance (in shares) | shares | 43.9 |  |

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