Goodwill and Identifiable Intangible Assets, net - Summary of Identifiable Intangible Assets, net (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 316.3	$ 308.4
Accumulated Amortization	(153.4)	(135.2)
Net	162.9	173.2
Total identifiable intangible assets, net
Gross Carrying Value	325.2	317.3
Net	171.8	182.1
Trademarks and tradenames with indefinite lives
Indefinite-lived Intangible Assets [Line Items]
Trademarks and tradenames with indefinite lives	8.9	8.9
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	100.2	102.0
Accumulated Amortization	(33.1)	(30.5)
Net	67.1	71.5
Trademarks and tradenames with indefinite lives
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	30.6	31.1
Accumulated Amortization	(6.4)	(4.3)
Net	24.2	26.8
Software
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	105.9	95.3
Accumulated Amortization	(73.0)	(62.8)
Net	32.9	32.5
Technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	66.4	66.8
Accumulated Amortization	(30.3)	(27.2)
Net	36.1	39.6
Contracts
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	13.2	13.2
Accumulated Amortization	(10.6)	(10.4)
Net	$ 2.6	$ 2.8