INCOME TAXES - Changes in Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Unrecognized Tax Benefits [Roll Forward]
Balance at beginning of year	$ 43.0	$ 42.7	$ 35.4
Changes in tax positions related to
Current year	2.5	4.2	7.8
Prior years, decrease	(18.1)	(2.9)
Prior years, increase			0.5
Expired statute of limitations	(1.3)	(1.0)	(1.0)
Balance at end of year	$ 26.1	$ 43.0	$ 42.7