Income Taxes (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Taxes [Line Items]
Deferred tax asset	$ 1.5	$ 1.6
State income tax payments	0.1	0.1
State and Local Jurisdiction
Income Taxes [Line Items]
Income tax expense (benefit)	$ 0.1	$ 0.1	$ 0.1