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Discontinued Operations - Cash Flows (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Cash Used In Operating Activities From Discontinued Operations $ 6,955 $ 3,364
Net cash used in discontinued investing activities (44) (34)
Net cash used in discontinued financing activities (574) (650)
Sale | MSLO    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Cash Used In Operating Activities From Discontinued Operations 6,955 3,364
Net cash used in discontinued investing activities (44) (34)
Net cash used in discontinued financing activities $ (574) $ (650)