Income Taxes (Summary of Income Tax Benefit (Provision)) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Taxes [Abstract]
Current income tax provision	$ (1,781)	$ (863)	$ (2,699)	$ (2,251)
Deferred income tax (provision) benefit	506	(5,806)	(2,802)	1,237
Income tax benefit (provision)	$ (1,275)	$ (6,669)	$ (5,501)	$ (1,014)

Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.

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Name:	us-gaap_DeferredIncomeTaxExpenseBenefit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration