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PROPERTY AND EQUIPMENT, NET - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Property and Equipment, Net
Total property and equipment	$ 343.4	$ 309.6
Less accumulated depreciation	(215.5)	(191.6)
Property and equipment, net	127.9	118.0
Construction in progress
Property and Equipment, Net
Total property and equipment	1.8	3.3
Furniture, equipment, and leasehold improvements
Property and Equipment, Net
Total property and equipment	$ 341.6	$ 306.3

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