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INVESTMENTS - Schedule of Investments in Unconsolidated Entities (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Equity method investments
Carrying value of equity method investments	$ 8.4	$ 5.7
Equity securities
Carrying value of non-marketable equity securities	73.6	29.4
Total investments in unconsolidated entities	$ 82.0	$ 35.1

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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.

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current.

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Amount of investment in equity method investee and investment in and advance to affiliate.

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