Investments (Gross Gains And Losses Realized) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Investments [Abstract]
Gross unrealized gains recognized on equity securities still held	$ 38	$ 547	$ 223
Gross unrealized losses recognized on equity securities still held	(1,623)	(43)	(1,086)
Net unrealized (losses) gains recognized on equity securities still held	(1,585)	504	(863)
Gross realized gains	4	312	139
Gross realized losses	0	0	(77)
Net realized investment security gains	$ 4	$ 312	$ 62