Income Taxes (Summary of Income Tax Benefit (Provision)) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Taxes [Abstract]
Current income tax provision	$ (262)	$ (1,781)	$ (1,209)	$ (2,699)
Deferred income tax (provision) benefit	(47)	506	253	(2,802)
Income tax benefit (provision)	$ (309)	$ (1,275)	$ (956)	$ (5,501)