Accumulated Other Comprehensive Loss Accumulated Other Comprehensive Loss (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Combined Federal And State Income Tax Rate	23.00%	23.00%	23.00%	23.00%
New Accounting Pronouncement				$ 0
Accounting Standards Update 2016-01
New Accounting Pronouncement				$ (2,700)

Represents the quantification of the effect of adopting the new accounting standard or change in accounting principle expected by the entity to have a significant effect on the entity's financial statements.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration