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Description Of Business And Basis Of Presentation (Exchange Rates) (Details) | 3 Months Ended | 6 Months Ended |
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Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016 | Dec. 31, 2016
Canadian Dollar (CAD) [Member] |  |  |  |  |
Currency [Line Items] |  |  |  |  |
Ending rates | 1.2977 |  | 1.2977 |  | 1.3427
Average Rates | 1.3451 | 1.2890 | 1.3343 | 1.3311 |
Average Rates % Change | (4.40%) |  | (0.20%) |  |
Euros (EUR) [Member] |  |  |  |  |
Currency [Line Items] |  |  |  |  |
Ending rates | 0.8761 |  | 0.8761 |  | 0.9476
Average Rates | 0.9096 | 0.8856 | 0.9240 | 0.8961 |
Average Rates % Change | (2.70%) |  | (3.10%) |  |
Polish Zloty (PLN) [Member] |  |  |  |  |
Currency [Line Items] |  |  |  |  |
Ending rates | 3.7027 |  | 3.7027 |  | 4.2065
Average Rates | 3.8354 | 3.8726 | 3.9459 | 3.9141 |
Average Rates % Change | 1.00% |  | (0.80%) |  |
British Pound (GBP) [Member] |  |  |  |  |
Currency [Line Items] |  |  |  |  |
Ending rates | 0.7696 |  | 0.7696 |  | 0.8106
Average Rates | 0.7822 | 0.6976 | 0.7947 | 0.6979 |
Average Rates % Change | (12.10%) |  | (13.90%) |  |

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- Definition Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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 + Details
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