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Discontinued Operations and Held-for-sale Assets (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
OGBC income (loss) from discontinued operations, net of income taxes | $ (650,000) | $ (363,000) | $ (894,000)
Long-term assets classified as discontinued operations | 1,176,000 | 3,248,000 |
Property, plant and equipment | 187,599,000 | 159,948,000 |
Intangible assets | 69,720,000 | 71,235,000 |
Goodwill | 179,522,000 | 214,492,000 | 1,314,000
Inventory write-down | (26,055,000) | (29,173,000) | 0
Operating expenses | (153,514,000) | (103,511,000) | (26,658,000)
Other income (loss) | 106,074,000 | 1,287,045,000 | (478,000)
Income (loss) from continuing operations | (74,620,000) | 1,165,937,000 | (20,923,000)
As previously disclosed |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Property, plant and equipment |  | 161,809,000 |
Intangible assets |  | 72,320,000 |
Goodwill |  | 214,794,000 |
Inventory write-down |  | (29,440,000) |
Operating expenses |  | (103,620,000) | (27,554,000)
Other income (loss) |  | 1,287,058,000 | (476,000)
Income (loss) from continuing operations |  | 1,165,574,000 | (21,817,000)
Held-for-sale adjustment |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Property, plant and equipment |  | (1,861,000) |
Intangible assets |  | (1,085,000) |
Goodwill |  | (302,000) |
Inventory write-down |  | 267,000 |
Operating expenses |  | 109,000 | 896,000
Other income (loss) |  | (13,000) | (2,000)
Income (loss) from continuing operations |  | $ 363,000 | $ 894,000
Discontinued Operations, Held-for-sale | OGBC |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Loss on held-for-sale assets | 1,860,000 |  |
Valuation allowance recorded upon reclassification of assets as held-for-sale | 919,000 |  |
Impairment of assets held-for-sale | $ 941,000 |  |

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