MARKETABLE SECURITIES - Contractual Maturities of Available-for-Sale Debt Securities (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Amortized Cost
Less than one year	$ 13.6
One to five years	37.5
Six to ten years	27.1
Greater than ten years	81.7
Amortized Cost	159.9	$ 163.2
Fair Value
Less than one year	13.6
One to five years	38.2
Six to ten years	27.2
Greater than ten years	77.7
Fair Value	$ 156.7	$ 157.2

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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