SEGMENTS - Geographic Area Data (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	$ 970.1	$ 903.2	$ 1,013.5
Properties and equipment, net	213.2	225.6
Goodwill, Intangibles and Other Assets	371.8	400.3
Total North America
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	519.6	502.5	537.4
Properties and equipment, net	141.9	148.4
Goodwill, Intangibles and Other Assets	104.5	110.9
United States
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	487.5	474.0	505.0
Properties and equipment, net	138.5	145.4
Goodwill, Intangibles and Other Assets	93.9	100.1
Canada and other
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	32.1	28.5	32.4
Properties and equipment, net	3.4	3.0
Goodwill, Intangibles and Other Assets	10.6	10.8
Europe Middle East Africa (“EMEA”)
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	195.8	172.6	193.5
Properties and equipment, net	22.8	25.5
Goodwill, Intangibles and Other Assets	212.4	220.5
Asia Pacific
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	191.9	180.8	222.5
Properties and equipment, net	41.8	45.4
Goodwill, Intangibles and Other Assets	28.0	33.7
Latin America
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	62.8	47.3	$ 60.1
Properties and equipment, net	6.7	6.3
Goodwill, Intangibles and Other Assets	$ 26.9	$ 35.2