Goodwill and Identifiable Intangible Assets, Net - Summary of Identifiable Intangible Assets with Definite and Indefinite Useful Lives (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 308.4	$ 200.1
Accumulated Amortization	(135.2)	(107.3)
Total	173.2	92.8
Indefinite-lived intangible assets
Trademarks and tradenames with indefinite lives, Net	8.9	8.9
Total identifiable intangible assets, Gross Carrying Value	317.3	209.0
Identifiable intangible assets, net	182.1	101.7
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	102.0	72.4
Accumulated Amortization	(30.5)	(22.3)
Total	71.5	50.1
Trademarks and tradenames
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	31.1	15.1
Accumulated Amortization	(4.3)	(1.6)
Total	26.8	13.5
Software
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	95.3	62.2
Accumulated Amortization	(62.8)	(49.8)
Total	32.5	12.4
Technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	66.8	37.2
Accumulated Amortization	(27.2)	(23.5)
Total	39.6	13.7
Contracts
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	13.2	13.2
Accumulated Amortization	(10.4)	(10.1)
Total	$ 2.8	$ 3.1