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Other Operational Loss (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Other Operational Loss [Line Items] |  |  |
Other operational loss | $ 1,226 | $ 4,050 | $ 0
Commercial Claim |  |  |
Other Operational Loss [Line Items] |  |  |
Other operational loss | $ 1,131 |  |

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Period Type: | duration

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- Definition This element represents a sum total of expenses not separately reflected on the income statement for the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4,6) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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