Description Of Business And Basis Of Presentation (Exchange Rates To US Dollar) (Details)	Mar. 31, 2019	Dec. 31, 2018
Canadian Dollar (CAD) [Member]
Currency [Line Items]
Ending rates	1.3363	1.3642
Euros (EUR) [Member]
Currency [Line Items]
Ending rates	0.8908	0.8738
Polish Zloty (PLN) [Member]
Currency [Line Items]
Ending rates	3.8313	3.7606
British Pound (GBP) [Member]
Currency [Line Items]
Ending rates	0.7672	0.7823

Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section S99
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6897108&loc=SL6897125-166521

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant