Revenues Contract Balances (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022		Mar. 31, 2021		Dec. 31, 2021	Dec. 31, 2020
Revenue from Contract with Customer [Abstract]
Trade Receivables, net	$ 126.5				$ 126.2
Contracts with Customers, Asset, Gross, Noncurrent	2.5				2.3
Contract Liability Beginning Balance	19.2	[1]	$ 17.2	[2]
Revenues recognized that were included in the contract liability balances at the beginning of the period	(1.0)		(1.3)
Increases due to cash received, excluding amounts recognized as revenues during the period	2.2		1.5
Contract Liability Ending Balance	20.4	[1]	17.4	[2]
Contract with Customer, Liability, Current	4.0		4.3		3.6	$ 4.9
Contract with Customer, Liability, Noncurrent	$ 16.4		$ 13.1		$ 15.6	$ 12.3

[1] As of March 31, 2022, and December 31, 2021, $4.0 million and $3.6 million were recorded in Other Current Liabilities (current portion), and $16.4 million and $15.6 million were recorded in Other Liabilities (noncurrent portion).

[2] As of March 31, 2021, and December 31, 2020, $4.3 million and $4.9 million were recorded in Other Current Liabilities (current portion) and $13.1 million and $12.3 million were recorded in Other Liabilities (noncurrent portion).