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Fair Value Measurements - Summary of Assets and Liabilities Measured at Fair Value on Recurring and Non-recurring Basis (Details) - USD ($) | Dec. 31, 2020 | Jun. 30, 2020
--- | --- | ---
Assets: |  |
Investment in GECC | $ 19,532,000 | $ 8,705,000
Equity investments of Consolidated Fund | 3,417,000 |
Total assets | 22,949,000 | 8,705,000
Liabilities: |  |
Participation feature of HC LLC Series A-2 Preferred Stock | 0 |
Contingent consideration liability |  | 0
Total liabilities | 0 | 0
Fair Value, Inputs, Level 1 |  |
Assets: |  |
Investment in GECC | 19,532,000 | 8,705,000
Equity investments of Consolidated Fund | 3,417,000 |
Total assets | 22,949,000 | 8,705,000
Liabilities: |  |
Participation feature of HC LLC Series A-2 Preferred Stock | 0 |
Contingent consideration liability |  | 0
Total liabilities | 0 | 0
Fair Value, Inputs, Level 2 |  |
Assets: |  |
Investment in GECC | 0 | 0
Equity investments of Consolidated Fund | 0 |
Total assets | 0 | 0
Liabilities: |  |
Participation feature of HC LLC Series A-2 Preferred Stock | 0 |
Contingent consideration liability |  | 0
Total liabilities | 0 | 0
Fair Value, Inputs, Level 3 |  |
Assets: |  |
Investment in GECC | 0 | 0
Equity investments of Consolidated Fund | 0 |
Total assets | 0 | 0
Liabilities: |  |
Participation feature of HC LLC Series A-2 Preferred Stock | 0 |
Contingent consideration liability |  | 0
Total liabilities | $ 0 | $ 0

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