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Basis of Presentation SignificantAccountingPolicies (Policies) | 3 Months Ended
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Mar. 31, 2013
Accounting Policies [Abstract] |
Nature of Operations | General Information The accompanying unaudited Consolidated Condensed Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information, the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all information or footnotes required by GAAP for complete financial statements. As a result, this Form 10-Q should be read in conjunction with the Consolidated Financial Statements and accompanying Notes in the Financial Supplement of our Form 10-K for the year ended December 31, 2012. Management believes that the accompanying Consolidated Condensed Financial Statements reflect all adjustments, including normal recurring items, considered necessary for a fair presentation of the interim periods.
Consolidation Policy | We have eliminated all material intercompany transactions in our Consolidated Condensed Financial Statements. We do not consolidate the financial statements of any company in which we have an ownership interest of 50% or less unless that company is deemed to be a variable interest entity ("VIE") in which we are considered to have a controlling financial interest. We did not control any company in which we had an ownership interest of 50% or less for any period presented in our Consolidated Condensed Financial Statements.
Prior Period Reclassification Adjustment | Certain prior year amounts in the Consolidated Condensed Financial Statements have been reclassified to conform with current year presentation.
New Accounting Pronouncements | New Accounting Pronouncements In January 2013, we adopted the provisions of Accounting Standards Update (“ASU”) No. 2013-01, issued by the Financial Accounting Standards Board (“FASB”), which requires new asset and liability offsetting disclosures for derivatives, repurchase agreements and security lending transactions to the extent that they are: (1) offset in the financial statements; or (2) subject to an enforceable master netting arrangement or similar agreement. We do not have any repurchase agreements and do not participate in securities lending transactions. Our derivative instruments are not offset in the financial statements and are not subject to any right of offset provisions with our counterparties. Accordingly, this amendment did not have a material impact on our Consolidated Condensed Financial Statements. Additional information about derivative instruments can be found in Note 6 of the Notes to the Consolidated Condensed Financial Statements. In February 2013, the Financial Accounting Standards Board (“FASB”) amended Accounting Standards codification (“ASC 220”), “Comprehensive Income.” This amendment requires companies to report, in one place, information about reclassifications (by component) out of accumulated other comprehensive income (“AOCI”). In addition, this amendment requires companies to present the related line item effect of significant reclassifications on the statement where income is presented. We adopted the provisions of this amendment during the first quarter 2013, which affects only the display of information and does not change existing recognition and measurement requirements in our Consolidated Condensed Financial Statements.
Issued but Not Yet Effective Accounting Pronouncements | Issued but not yet effective accounting pronouncements are not expected to have a material impact on our Consolidated Condensed Financial Statements.

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- Definition Disclosure of accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting. The accounting policy may also address the accounting treatment for intercompany accounts and transactions, noncontrolling interest, and the income statement treatment in consolidation for issuances of stock by a subsidiary. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2197480 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 20 -URI http://asc.fasb.org/subtopic&trid=2197087 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 20 -Subparagraph a(2) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 2-6 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. 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- Definition The entire disclosure for the nature of an entity's business, the major products or services it sells or provides and its principal markets, including the locations of those markets. If the entity operates in more than one business, the disclosure also indicates the relative importance of its operations in each business and the basis for the determination (for example, assets, revenues, or earnings). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6003-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 94-6 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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