Recently Issued Accounting Standards	12 Months Ended
Dec. 31, 2011
Recently Issued Accounting Standards
Recently Issued Accounting Standards	23. Recently Issued Accounting Pronouncements In May 2011, the FASB issued an update to the accounting rules for fair value measurement to provide a consistent definition of fair value and ensure that the fair value measurement and disclosure requirements are similar between U.S. GAAP and International Financial Reporting Standards (“IFRS”). This update changes certain fair value measurement principles and enhances the disclosure requirements for fair value measurements. This update does not extend the use of fair value accounting, but provides guidance on how it should be applied where its use is already required or permitted by other standards within U.S. GAAP or IFRS. This update is effective for interim and annual periods beginning after December 15, 2011 and is applied prospectively. The adoption of this update on January 1, 2012 will not have a material impact on the consolidated financial statements. In June 2011, the FASB issued an update to the accounting on comprehensive income to increase the prominence of items reported in other comprehensive income and to facilitate convergence of U.S. GAAP and IFRS. This update requires that all non-owner changes in stockholders' equity be presented either in a single continuous statement of comprehensive income or in two separate but consecutive statements. This update does not change the items that must be reported in other comprehensive income or when an item of other comprehensive income must be reclassified to net income. Further, this update does not affect how earnings per share is calculated or presented. This update is effective for interim and annual periods beginning after December 15, 2011 and is applied retrospectively. The adoption of this update on January 1, 2012 will not have a material impact on the consolidated financial statements. In September 2011, the FASB issued an update to the authoritative guidance related to goodwill impairment testing. This update gives companies the option to first perform a qualitative assessment to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount before performing the two-step test mandated prior to the update. If, after assessing the totality of events and circumstances, a company determines it is more likely than not that the fair value of a reporting unit is less than its carrying amount, then it must perform the two-step test. Otherwise, a company may skip the two-step test. Companies are not required to perform the qualitative assessment and may, instead proceed directly to the first step of the two-part test. This update is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. The adoption of this update on January 1, 2012 will not have a material impact on the consolidated financial statements.

Recently Issued Accounting Standards

12 Months Ended

Dec. 31, 2011

Recently Issued Accounting Standards

23. Recently Issued Accounting Pronouncements

In May 2011, the FASB issued an update to the accounting rules for fair value measurement to provide a consistent definition of fair value and ensure that the fair value measurement and disclosure requirements are similar between U.S. GAAP and International Financial Reporting Standards (“IFRS”). This update changes certain fair value measurement principles and enhances the disclosure requirements for fair value measurements. This update does not extend the use of fair value accounting, but provides guidance on how it should be applied where its use is already required or permitted by other standards within U.S. GAAP or IFRS. This update is effective for interim and annual periods beginning after December 15, 2011 and is applied prospectively. The adoption of this update on January 1, 2012 will not have a material impact on the consolidated financial statements.

In June 2011, the FASB issued an update to the accounting on comprehensive income to increase the prominence of items reported in other comprehensive income and to facilitate convergence of U.S. GAAP and IFRS. This update requires that all non-owner changes in stockholders' equity be presented either in a single continuous statement of comprehensive income or in two separate but consecutive statements. This update does not change the items that must be reported in other comprehensive income or when an item of other comprehensive income must be reclassified to net income. Further, this update does not affect how earnings per share is calculated or presented. This update is effective for interim and annual periods beginning after December 15, 2011 and is applied retrospectively. The adoption of this update on January 1, 2012 will not have a material impact on the consolidated financial statements.

In September 2011, the FASB issued an update to the authoritative guidance related to goodwill impairment testing. This update gives companies the option to first perform a qualitative assessment to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount before performing the two-step test mandated prior to the update. If, after assessing the totality of events and circumstances, a company determines it is more likely than not that the fair value of a reporting unit is less than its carrying amount, then it must perform the two-step test. Otherwise, a company may skip the two-step test. Companies are not required to perform the qualitative assessment and may, instead proceed directly to the first step of the two-part test. This update is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. The adoption of this update on January 1, 2012 will not have a material impact on the consolidated financial statements.