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Discontinued Operations - Summary of Cash Flow Information (Details) - Discontinued Operations, Disposed of by Sale - GS segment
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]  
GS Operating Activities $ 4,547
GS Investing Activities $ 117,798