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Organization and Business (Details) | 6 Months Ended
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Jun. 30, 2019 segment
Business And Organization [Line Items] |
Number of reportable segments | 8
DBMG |
Business And Organization [Line Items] |
Parents controlling interest | 92.00%
GMSL |
Business And Organization [Line Items] |
Parents controlling interest | 73.00%
ANG |
Business And Organization [Line Items] |
Parents controlling interest | 69.00%
ICS |
Business And Organization [Line Items] |
Parents controlling interest | 100.00%
CGI |
Business And Organization [Line Items] |
Parents controlling interest | 100.00%
Genoval Orthopedics inc. |
Business And Organization [Line Items] |
Parents controlling interest | 80.00%
R2 Dermatology, Inc. |
Business And Organization [Line Items] |
Parents controlling interest | 63.00%
Medibeacon Inc., and Triple Ring Technologies, Inc |
Business And Organization [Line Items] |
Parents controlling interest | 50.00%
HC2 Broadcasting Holdings, Inc |
Business And Organization [Line Items] |
Parents controlling interest | 98.00%
DTV America |
Business And Organization [Line Items] |
Parents controlling interest | 50.00%
Percentage of proxy and voting rights from minority holders | 10.00%

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