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Organization and Business (Details) - segment | 6 Months Ended |  |  |
--- | --- | --- | --- | ---
Jun. 30, 2021 | Mar. 31, 2021 | May 12, 2020 | Oct. 30, 2019
Business And Organization [Line Items] |  |  |  |
Number of reportable segments | 4 |  |  |
DBMG |  |  |  |
Business And Organization [Line Items] |  |  |  |
Parents interest, controlling | 92.00% |  |  |
Genoval Orthopedics inc. |  |  |  |
Business And Organization [Line Items] |  |  |  |
Parents interest, controlling | 80.00% |  |  |
R2 Dermatology, Inc. |  |  |  |
Business And Organization [Line Items] |  |  |  |
Parents interest, controlling | 51.00% |  |  |
Medibeacon Inc., and Triple Ring Technologies, Inc |  |  |  |
Business And Organization [Line Items] |  |  |  |
Parents interest, controlling | 47.00% |  |  |
HC2 Broadcasting Holdings, Inc |  |  |  |
Business And Organization [Line Items] |  |  |  |
Parents interest, controlling | 98.00% |  |  |
DTV America |  |  |  |
Business And Organization [Line Items] |  |  |  |
Parents interest, controlling | 76.00% | 60.00% |  |
Minority Holders |  |  |  |
Business And Organization [Line Items] |  |  |  |
Percentage of proxy and voting rights from minority holders | 15.00% | 10.00% |  |
Insurance Companies |  |  |  |
Business And Organization [Line Items] |  |  |  |
Parents interest, controlling | 100.00% |  |  |
Marine Services |  |  |  |
Business And Organization [Line Items] |  |  |  |
Parents interest, controlling | 73.00% |  | 30.00% | 49.00%
HMN |  |  |  |
Business And Organization [Line Items] |  |  |  |
Parents interest, controlling | 19.00% |  |  |

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- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8672-108599 + Details
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