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Segment Reporting - Reconciliation of Operating Profit (Loss) from Segments to Consolidated (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Reconciliation of income from continuing operations from segments to consolidated [Abstract] |  |  |  |
Operating income (loss) | $ 2,703 | $ (1,867) | $ 5,074 | $ (3,231)
Other income, net | 1,338 | 1,271 | 2,938 | 2,020
Income (loss) from continuing operations before income taxes | $ 4,041 | $ (596) | $ 8,012 | $ (1,211)

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