Revenues From Contracts With Customers (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Revenue From Contract With Customer [Abstract]
Receivables related to contract with customers	$ 187,200,000	$ 148,600,000
Impairment related to receivables	0
Deferred Revenue	$ 17,500,000	$ 12,100,000