Goodwill and Identifiable Intangible Assets, net - Summary of Identifiable Intangible Assets with Definite and Indefinite Useful Lives (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 335.8	$ 321.5
Accumulated Amortization	(192.1)	(159.4)
Total	143.7	162.1
Indefinite-lived intangible assets
Trademarks and tradenames with indefinite lives	8.9	8.9
Total identifiable intangible assets, Gross Carrying Value	344.7	330.4
Total identifiable intangible assets, net	152.6	171.0
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	102.7	105.2
Accumulated Amortization	(42.4)	(37.2)
Total	60.3	68.0
Trademarks and tradenames
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	31.2	31.3
Accumulated Amortization	(11.5)	(8.5)
Total	19.7	22.8
Software
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	125.5	104.7
Accumulated Amortization	(90.5)	(69.7)
Total	35.0	35.0
Technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	64.9	66.7
Accumulated Amortization	(38.3)	(33.0)
Total	26.6	33.7
Contracts
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	11.5	13.6
Accumulated Amortization	(9.4)	(11.0)
Total	$ 2.1	$ 2.6