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Acquisitions and Divestitures - 2019 Divestitures (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended 9 Months Ended
Dec. 19, 2019
Jun. 30, 2019
Sep. 30, 2019
Sep. 30, 2019
May 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of shares issued 2,000,000.0        
Red Rock business          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Consideration for sale of subsidiary         $ 0.7
Gain on disposal of subsidiary     $ 0.6 $ 0.6  
Amer Global Technology Limited [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Percentage of potential tax obligation   20.00%      
BCC | Amer Global Technology Limited [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Percentage of equity ownership   71.80%      
Number of shares issued   39,500      
MHT          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Percentage of equity ownership   10.00%      
Number of shares issued   5,500