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Income Taxes - Narrative (Details) - USD ($) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Operating Loss Carryforwards [Line Items] |  |  |
Income taxes payable | $ 43,000,000 | $ 33,100,000 |
Valuation allowance | 26,400,000 | 1,100,000 |
Deferred tax liability related to foreign withholding taxes | 4,600,000 |  |
Unrecognized tax benefits | 300,000 | $ 200,000 | $ 0
Shift Technologies Inc. |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Valuation allowance | 24,300,000 |  |
State and Local Jurisdiction |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Valuation allowance, state net operating loss carryforwards | 2,100,000 |  |
Increase of NOL valuation allowance | 1,000,000 |  |
State operating loss carryforwards | $ 3,700,000 |  |

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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319 + Details
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