GOODWILL AND INTANGIBLES - INDEFINITE LIVED INTANGIBLE ASSETS (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Indefinite-lived Intangible Assets
Indefinite-lived intangible asset	$ 29.3		$ 29.3		$ 29.3
Amortization	13.4	$ 13.4	40.2	$ 37.2
MGU | Trade name
Indefinite-lived Intangible Assets
Indefinite-lived intangible asset	$ 5.2		$ 5.2		$ 5.2