Goodwill and Intangible Assets - Components of Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Finite Lived Intangible Assets [Line Items]
Weighted Average Remaining Useful Life (in Years)	8 years 3 months 18 days	8 years 6 months
Gross Carrying Amount	$ 593.1	$ 593.1
Accumulated Amortization	$ 294.9	$ 284.7
Customer Relationships
Finite Lived Intangible Assets [Line Items]
Weighted Average Remaining Useful Life (in Years)	8 years 3 months 18 days	8 years 6 months
Gross Carrying Amount	$ 551.1	$ 551.1
Accumulated Amortization	$ 264.5	$ 254.9
Trademarks and Trade Names
Finite Lived Intangible Assets [Line Items]
Weighted Average Remaining Useful Life (in Years)	8 years 3 months 18 days	8 years 4 months 24 days
Gross Carrying Amount	$ 37.6	$ 37.6
Accumulated Amortization	$ 26.1	$ 25.5
Other Intangible Assets
Finite Lived Intangible Assets [Line Items]
Weighted Average Remaining Useful Life (in Years)	2 years 2 months 12 days	2 years 2 months 12 days
Gross Carrying Amount	$ 4.4	$ 4.4
Accumulated Amortization	$ 4.3	$ 4.3