Revenue Recognition (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Performance Obligation, Description of Timing			The expected duration of the performance obligation is less than one year.
Maximum [Member]
Expected duration of performance obligation			1 year
Contracts and contract liabilities duration period			1 year
Opening [Member]
Contract liability	$ 1.1	$ 0.5	$ 1.2	$ 0.5