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Goodwill and Other Intangible Assets - Intangible Assets and Amortization Expense (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		6 years 2 months 12 days
Finite-Lived Intangible Assets, Gross	$ 86.2	$ 86.2	$ 92.1
Accumulated Amortization	20.9	20.9	49.1
Indefinite-lived Intangible Assets (Excluding Goodwill)	32.0	32.0	35.7
Intangible Assets, Net	97.3	97.3	78.7
Selling and Administrative Expenses
Finite-Lived Intangible Assets [Line Items]
Amortization Expense		$ 15.9	13.0	$ 7.0
Trademarks
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		7 years 4 months 24 days
Finite-Lived Intangible Assets, Gross	2.0	$ 2.0	1.0
Accumulated Amortization	0.6	0.6	0.4
Patents
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	0.0	0.0	40.8
Accumulated Amortization	0.0	$ 0.0	36.1
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		7 years
Finite-Lived Intangible Assets, Gross	36.4	$ 36.4	12.0
Accumulated Amortization	5.9	$ 5.9	5.2
Developed technology (1)
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		5 years 3 months 18 days
Finite-Lived Intangible Assets, Gross	45.4	$ 45.4	36.5
Accumulated Amortization	13.2	$ 13.2	6.7
Other
Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		5 years 1 month 6 days
Finite-Lived Intangible Assets, Gross	2.4	$ 2.4	1.8
Accumulated Amortization	$ 1.2	1.2	0.7
In Process Research and Development [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	9 years
Unamortized intangible assets:
Finite-Lived Intangible Asset, Useful Life	9 years
In Process Research and Development [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets (Excluding Goodwill)	$ 0.0	0.0	3.7
Trademarks
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets (Excluding Goodwill)	$ 32.0	$ 32.0	$ 32.0

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Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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