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Significant Accounting Policies and Recent Accounting Pronouncements, textuals 2 (Details) (USD $) | 12 Months Ended
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Dec. 31, 2012
Property, Plant and Equipment [Line Items] |
Property, Plant and Equipment, Estimated Useful Lives | 30 years
[MinimumMember] |
Property, Plant and Equipment [Line Items] |
Estimated Residual Scrap Value Per Lightweight Ton | 200
[MaximumMember] |
Property, Plant and Equipment [Line Items] |
Estimated Residual Scrap Value Per Lightweight Ton | 350

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- Definition Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2155824 + Details
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