Recent Accounting Pronouncements	9 Months Ended
Sep. 30, 2012
Accounting Changes and Error Corrections [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements. In September 2011, the Financial Accounting Standards Board (“FASB”) issued authoritative guidance related to testing goodwill for impairment. This guidance provides that entities may first assess qualitative factors to determine whether it is necessary to perform the two-step goodwill impairment test. If the qualitative assessment results in a more than 50% likely result that the fair value of a reporting unit is less than the carrying amount, then the entity must continue to apply the two-step impairment test. If the entity concludes the fair value exceeds the carrying amount, then neither of the two steps in the goodwill impairment test is required. This guidance is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011 with early adoption permitted. The adoption of this guidance did not have a material effect on our consolidated financial statements. In June 2011, the FASB issued authoritative guidance on the presentation of comprehensive income. This guidance specifies that an entity has the option 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. In both choices, an entity is required to present each component of net income along with total net income, each component of other comprehensive income along with a total for other comprehensive income, and a total amount for comprehensive income. This guidance 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. It also does not change the presentation of related tax effects, before related tax effects, or the portrayal or calculation of earnings per share. This guidance is to be applied retrospectively and is effective for fiscal years, and interim periods within those years, beginning after December 15, 2011. The adoption of this guidance did not have a material effect on our consolidated financial statements as it amended only the presentation of comprehensive income. In May 2011, the FASB issued amendments to authoritative guidance related to fair value measurement and disclosure requirements. The new guidance changes some fair value measurement principles and enhances disclosure requirements related to activities in Level 3 of the fair value hierarchy. The amendments are effective for interim and annual periods beginning after December 15, 2011. The adoption of this guidance did not have a material effect on our consolidated financial statements.

Recent Accounting Pronouncements. In September 2011, the Financial Accounting Standards Board (“FASB”) issued authoritative guidance related to testing goodwill for impairment. This guidance provides that entities may first assess qualitative factors to determine whether it is necessary to perform the two-step goodwill impairment test. If the qualitative assessment results in a more than 50% likely result that the fair value of a reporting unit is less than the carrying amount, then the entity must continue to apply the two-step impairment test. If the entity concludes the fair value exceeds the carrying amount, then neither of the two steps in the goodwill impairment test is required. This guidance is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011 with early adoption permitted. The adoption of this guidance did not have a material effect on our consolidated financial statements.

In June 2011, the FASB issued authoritative guidance on the presentation of comprehensive income. This guidance specifies that an entity has the option 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. In both choices, an entity is required to present each component of net income along with total net income, each component of other comprehensive income along with a total for other comprehensive income, and a total amount for comprehensive income. This guidance 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. It also does not change the presentation of related tax effects, before related tax effects, or the portrayal or calculation of earnings per share. This guidance is to be applied retrospectively and is effective for fiscal years, and interim periods within those years, beginning after December 15, 2011. The adoption of this guidance did not have a material effect on our consolidated financial statements as it amended only the presentation of comprehensive income.

In May 2011, the FASB issued amendments to authoritative guidance related to fair value measurement and disclosure requirements. The new guidance changes some fair value measurement principles and enhances disclosure requirements related to activities in Level 3 of the fair value hierarchy. The amendments are effective for interim and annual periods beginning after December 15, 2011. The adoption of this guidance did not have a material effect on our consolidated financial statements.