Recently Issued Accounting Pronouncements	9 Months Ended
Sep. 30, 2011
Accounting Changes and Error Corrections [Abstract]
Description of New Accounting Pronouncements Not yet Adopted [Text Block]	Recently Issued Accounting Pronouncements In May 2011, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2011-04, Fair Value Measurement (Topic 820): Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and International Financial Reporting Standards. This ASU clarifies the application of certain existing fair value measurement guidance as well as expands the disclosure requirements for fair value measurements that are estimated using significant unobservable (Level 3) inputs and for assets and liabilities disclosed but not recorded at fair value. This ASU will be effective for our quarter ending March 31, 2012. We do not expect the adoption of this ASU to have a material impact on our consolidated financial statements. In June 2011, the FASB issued ASU No. 2011-05, Comprehensive Income (Topic 220): Presentation of Comprehensive Income. This ASU requires the presentation of comprehensive income in either (1) a continuous statement of comprehensive income or (2) two separate but consecutive statements rather than as a footnote to the condensed consolidated financial statements, where it is currently disclosed. This ASU will be effective for our quarter ending March 31, 2012. Except for the presentation requirement, the adoption of this ASU will not have an impact on our consolidated financial statements. In September 2011, the FASB issued ASU No. 2011-08, Intangibles - Goodwill and Other (Topic 350): Testing Goodwill for Impairment. This ASU gives companies the option to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying value when assessing goodwill for impairment. If it is determined that it is more likely than not that the fair value of a reporting unit exceeds its carrying value, further impairment analysis is not necessary. However, if it is concluded otherwise, we are required to perform step one of the goodwill impairment test. This ASU will be effective for our quarter ending March 31, 2012. We do not expect the adoption of this ASU to have a material impact on our consolidated financial statements. In September 2011, the FASB issued ASU No. 2011-09, Compensation - Retirement Benefits - Multiemployer Plans (Subtopic 715-80): Disclosures about an Employer’s Participation in a Multiemployer Plan. This ASU requires employers that participate in multiemployer pension plans to provide additional quantitative and qualitative disclosures. The additional disclosures include, but are not limited to, information on significant multiemployer plans in which we participate, such as plan names and identifying numbers, the amount of contributions to the plan, whether our contributions represent more than five percent of the total contributions made to the plan, funded status, whether funding improvement plans are pending or implemented, whether the plan has imposed surcharges and the expiration dates of the plans. This ASU is effective for our year ending December 31, 2011. Except for the additional disclosures, the adoption of this ASU will not have an impact on our consolidated financial statements.

Recently Issued Accounting Pronouncements

In May 2011, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2011-04, Fair Value Measurement (Topic 820): Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and International Financial Reporting Standards. This ASU clarifies the application of certain existing fair value measurement guidance as well as expands the disclosure requirements for fair value measurements that are estimated using significant unobservable (Level 3) inputs and for assets and liabilities disclosed but not recorded at fair value. This ASU will be effective for our quarter ending March 31, 2012. We do not expect the adoption of this ASU to have a material impact on our consolidated financial statements.

In June 2011, the FASB issued ASU No. 2011-05, Comprehensive Income (Topic 220): Presentation of Comprehensive Income. This ASU requires the presentation of comprehensive income in either (1) a continuous statement of comprehensive income or (2) two separate but consecutive statements rather than as a footnote to the condensed consolidated financial statements, where it is currently disclosed. This ASU will be effective for our quarter ending March 31, 2012. Except for the presentation requirement, the adoption of this ASU will not have an impact on our consolidated financial statements.

In September 2011, the FASB issued ASU No. 2011-08, Intangibles - Goodwill and Other (Topic 350): Testing Goodwill for Impairment. This ASU gives companies the option to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying value when assessing goodwill for impairment. If it is determined that it is more likely than not that the fair value of a reporting unit exceeds its carrying value, further impairment analysis is not necessary. However, if it is concluded otherwise, we are required to perform step one of the goodwill impairment test. This ASU will be effective for our quarter ending March 31, 2012. We do not expect the adoption of this ASU to have a material impact on our consolidated financial statements.

In September 2011, the FASB issued ASU No. 2011-09, Compensation - Retirement Benefits - Multiemployer Plans (Subtopic 715-80): Disclosures about an Employer’s Participation in a Multiemployer Plan. This ASU requires employers that participate in multiemployer pension plans to provide additional quantitative and qualitative disclosures. The additional disclosures include, but are not limited to, information on significant multiemployer plans in which we participate, such as plan names and identifying numbers, the amount of contributions to the plan, whether our contributions represent more than five percent of the total contributions made to the plan, funded status, whether funding improvement plans are pending or implemented, whether the plan has imposed surcharges and the expiration dates of the plans. This ASU is effective for our year ending December 31, 2011. Except for the additional disclosures, the adoption of this ASU will not have an impact on our consolidated financial statements.