SEGMENT INFORMATION - Revenue by Geographical Region (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 540.0	$ 453.6	$ 454.0
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	317.5	278.1	277.3
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 222.5	$ 175.5	$ 176.7