Income Taxes - Deferred Tax Asset Valuation Rolforward (Details) - Valuation Allowance of Deferred Tax Assets - USD ($) $ in Thousands |
12 Months Ended | |
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Dec. 31, 2019 |
Dec. 31, 2018 |
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| Movement in Valuation Allowances and Reserves | ||
| Beginning balance | $ 48,711 | $ 64,945 |
| Additions | 3,343 | 5,314 |
| Reductions | (758) | (21,548) |
| Ending balance | $ 51,296 | $ 48,711 |
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of valuation and qualifying accounts and reserves. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of increase in valuation and qualifying accounts and reserves from charge to cost and expense. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of decrease in valuation and qualifying accounts and reserves. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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