Income Taxes - Valuation allowance on the deferred income tax assets (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Income Taxes | ||
| Increase (decrease) in valuation allowance | $ (86,359) | $ (30,588) |
| Beginning balance | (41,844) | (11,256) |
| Additions charged to income tax provision | (86,359) | (30,588) |
| Ending balance | $ (128,203) | $ (41,844) |
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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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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