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Commitments And Contingencies (Narrative) (Details) $ in Thousands, PLN in Millions | 3 Months Ended | 13 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 31, 2016 USD ($) | Dec. 31, 2014 PLN | Dec. 31, 2014 USD ($) | Dec. 31, 2013 PLN | Dec. 31, 2013 USD ($) | Mar. 31, 2016 PLN | Mar. 31, 2016 USD ($) | Dec. 31, 2015 PLN | Dec. 31, 2015 USD ($)
Commitments and Contingencies [Line items] |  |  |  |  |  |  |  |  |
Contingent liability |  |  |  |  |  |  | $ 2,307 |  | $ 2,180
Review Of Tax Year 2011 [Member] |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line items] |  |  |  |  |  |  |  |  |
Paid to Polish IRS |  |  |  | PLN 3.6 | $ 1,200 |  |  |  |
Review Of Tax Period December 2007 To December 2008 [Member] |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line items] |  |  |  |  |  |  |  |  |
Paid to Polish IRS | $ 900 | PLN 2.8 | $ 900 |  |  |  |  |  |
Review of Tax Year 2010 [Member] |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line items] |  |  |  |  |  |  |  |  |
Contingent liability |  |  |  |  |  |  |  | PLN 3.4 | $ 900
Review of All Tax Open Periods [Member] |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line items] |  |  |  |  |  |  |  |  |
Contingent liability |  |  |  |  |  | PLN 8.6 | $ 2,300 |  |

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- Definition Carrying amount of reserve for known or estimated probable loss from litigation, which may include attorneys' fees and other litigation costs, which is expected to be paid within one year of the date of the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.25) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 55 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=6396582&loc=d3e15243-108350 + Details
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- Definition Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=51675352&loc=d3e28446-109314 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=51675352&loc=d3e28511-109314 + Details
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