Income Taxes (Summary of Uncertain Tax Positions Included in Income Tax 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 (provision) benefit for UTPs	$ (1,751)	$ (791)	$ (2,488)	$ (2,018)
Deferred benefit (provision) for UTPs	86	167	239	425
Tax (provision) benefit for UTPs	$ (1,665)	$ (624)	$ (2,249)	$ (1,593)