Employee Benefit Plans (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Retirement Benefits [Abstract]
Defined Benefit Plan, Plan Assets, Contributions by Employer			$ 1.0	$ 1.0
Defined contribution plan, compensation expense	$ 0.9	$ 1.0	$ 2.9	$ 3.0