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INVESTMENTS - Schedule of Investments in Unconsolidated Affiliates (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Equity method investments
Carrying value of equity method investments	$ 36.9	$ 34.7
Equity securities
Carrying value of marketable equity securities	28.8	7.1
Carrying value of non-marketable equity securities	135.6	185.5
Total investments in unconsolidated entities	$ 201.3	$ 227.3

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