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Impact of Recently Issued Accounting Guidance	3 Months Ended
	Mar. 31, 2012
Impact of Recently Issued Accounting Guidance
Impact of Recently Issued Accounting Guidance	2.  Impact of Recently Issued Accounting Guidance Accounting Guidance Recently Adopted On January 1, 2012, we adopted changes issued by the Financial Accounting Standards Board (“FASB”), which requires companies to present the total of comprehensive income, the components of net income, and the components of other comprehensive income either in a single continuous statement of comprehensive income, or in two separate but consecutive statements. We elected to adopt the two-statement option. The new guidance eliminated the option to present the components of other comprehensive income as part of the statement of equity. Other than the change in presentation, the adoption of these changes had no material impact on our consolidated financial statements. The new guidance also required entities to present reclassification adjustments from accumulated other comprehensive income by component in both the statement in which net income is presented and the statement in which other comprehensive income is presented. However, in December 2011, the FASB issued guidance which indefinitely defers the guidance related to the presentation of reclassification adjustments. On January 1, 2012, we adopted changes issued by the FASB to provide a consistent definition of fair value and to ensure that the fair value measurement and disclosure requirements are similar between U.S. generally accepted accounting principles and International Financial Reporting Standards. The new guidance changed certain fair value measurement principles and enhanced the disclosure requirements particularly for level 3 fair value measurements. The adoption of these changes did not have a material impact on our consolidated financial statements.

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- Definition

Represents the disclosure of recent accounting pronouncements that have been issued. This disclosure may include: (1) a description of the recent pronouncements, the date that adoption is required and the date that the entity plans to adopt, if earlier; (2) the methods of adoption allowed by the pronouncement and the method expected to be utilized by the entity, if determined; (3) the impact that adoption of the pronouncement is expected to have on the financial statements of the entity, unless such impact is not known or reasonably estimable (in which case, a statement to that effect should be made) and; (4) the potential impact of other significant matters that the entity believes might result from the adoption of the pronouncement (for example, technical violations of debt covenant agreements and planned or intended changes in business practices).

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