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Operating Segments - Schedule of Segment Reporting Information (Details) (Parenthetical) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Segment Reporting [Abstract] |  |  |  |
Net gain on exchange offer of Series B Preferred Stock of subsidiary |  |  |  | $ 1,596
Tax benefit from release of valuation allowance on deferred tax assets |  | $ (1,380) | $ 26 | $ (1,344)

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