Employee Benefit Plans (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Employee Benefit Plans [Abstract]
Defined contribution plan, employer matching contribution, percent	4.00%
Defined contribution plan, vesting percentage	100.00%
Employer contributions to 401(k) plan	$ 1.9	$ 1.5	$ 1.6
Defined benefit pension plan, assets	5.9
Defined benefit pension plan, liabilities	6.6
Net liabilities included on the balance sheet	$ (0.7)	$ (0.7)