Income Taxes (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Taxes [Line Items]
U.S. statutory federal income tax rate	21.00%
Valuation allowance	$ 0	$ 0
Income recognized in continuing operations related to non-segment income	1,400,000	4,600,000	$ 9,200,000
Liability for uncertain tax positions	0	0	0
Release of accrued interest due to expiration of statute of limitations		$ 100,000	$ 100,000
Accumulated Other Comprehensive Income (Loss), net of tax [Member]
Income Taxes [Line Items]
Realized Gains In Accumulated Other Comprehensive Income To Be Released Into Income From Continuing Operations In Future	$ 5,600,000