Income Taxes (Schedule of Unrecognized Tax Positions) (Details) $ in Thousands	12 Months Ended
Dec. 31, 2018 USD ($)
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at January 1	$ 2,757
Decrease related to statute of limitations expiring	(165)
Balance at December 31	$ 2,592

Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (a)(4)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319

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Balance Type:	debit
Period Type:	duration