Income Taxes (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Deferred Tax Assets, Valuation Allowance	$ 805,000	$ 805,000
Change in Valuation Allowance, Deferred Tax Asset		(21,200,000)
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	16,800,000	9,000,000.0
Benefits (Expenses) from the decrease (increase) of interest expense	205,000	450,000	$ 400,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	561,000	$ 828,000
Minimum
Income Tax Examination, Estimate of Possible Loss	0
Maximum
Income Tax Examination, Estimate of Possible Loss	3,300,000
Domestic Tax Authority [Member]
Operating Loss Carryforwards	$ 71,800,000