Income Taxes (Narrative) (Details) - USD ($)	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Valuation Allowance [Line Items]
Reversal of Accrued Withholding Taxes on Earnings			$ 988,000
Effective income tax rate, continuing operations	(11.70%)	(4.70%)		(13.70%)	(21.90%)
U.S. statutory income tax rate				21.00%
Effective income tax rate, continuing operations	(11.70%)	(4.70%)		(13.70%)	(21.90%)
U.S. statutory income tax rate				21.00%