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INVESTMENTS - Schedule of investments and Other Equity Investments (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2023 | Dec. 31, 2022
Schedule of Cost and Equity Method Investments |  |
Total equity method investments | $ 231.9 | $ 215.4
Total other equity investments | 37.8 | 37.8
Total investments | 269.7 | 253.2
7Ridge Fund |  |
Schedule of Cost and Equity Method Investments |  |
Total equity method investments | 231.9 | 215.4
Investment in Eris Exchange Holdings, LLC |  |
Schedule of Cost and Equity Method Investments |  |
Total other equity investments | 20.0 | 20.0
Investment in CSD Br |  |
Schedule of Cost and Equity Method Investments |  |
Total other equity investments | 5.9 | 5.9
Investment in Coin Metrics Inc. |  |
Schedule of Cost and Equity Method Investments |  |
Total other equity investments | 5.0 | 5.0
Investment in Cboe Vest Financial Group, Inc. |  |
Schedule of Cost and Equity Method Investments |  |
Total other equity investments | 2.9 | 2.9
Investment in Effective Investing Limited |  |
Schedule of Cost and Equity Method Investments |  |
Total other equity investments | 1.8 | 1.8
Investment in OCC |  |
Schedule of Cost and Equity Method Investments |  |
Total other equity investments | $ 0.3 | 0.3
Investment percentage | 20.00% |
Other equity investments |  |
Schedule of Cost and Equity Method Investments |  |
Total other equity investments | $ 1.9 | $ 1.9

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- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=109237563&loc=d3e33749-111570 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(10)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8813-108599 + Details
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