SEGMENT REPORTING - Geographical Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Segment Reporting Information
Revenues less cost of revenues:	$ 587.3	$ 513.8	$ 1,152.5	$ 1,015.9
United States
Segment Reporting Information
Revenues less cost of revenues:	508.1	450.2	1,000.2	889.7
Non-U.S.
Segment Reporting Information
Revenues less cost of revenues:	$ 79.2	$ 63.6	$ 152.3	$ 126.2