Basis of Presentation and Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2011
Basis of Presentation and Accounting Policies (Policies) [Abstract]
Fair Value Measurements and Disclosures	In January 2010, the FASB issued ASU No. 2010-06, “Fair Value Measurements and Disclosures (ASC 820): Improving Disclosures about Fair Value Measurements,” which requires additional disclosures on transfers in and out of Level I and Level II and on activity for Level III fair value measurements. The new disclosures and clarifications of existing disclosures are effective for interim and annual reporting periods beginning after December 15, 2009, except for the disclosures of Level III activity, which are effective for fiscal years beginning after December 15, 2010 and for interim periods within those fiscal years. Our adoption of the Level I and II disclosure guidance, effective January 1, 2010, and Level III disclosure guidance, effective January 1, 2011, had no material impact on our consolidated financial condition or results of operations.
Revenue Recognition	In September 2009, the FASB issued ASU No. 2009-13, “Revenue Recognition (ASC 605): Multiple-Deliverable Revenue Arrangements — a consensus of the FASB Emerging Issues Task Force,” which addresses the accounting for multiple-deliverable arrangements to enable vendors to account for products or services separately rather than as a combined unit and requires expanded revenue recognition policy disclosures. This amendment addresses how to separate deliverables and how to measure and allocate arrangement consideration to one or more units of accounting. As noted above, our adoption of ASU No. 2009-13, effective January 1, 2011, had no impact on our consolidated financial condition or results of operations.
Intangibles - Goodwill and Other	In December 2010, the FASB issued ASU No. 2010-28, “Intangibles — Goodwill and Other (ASC 350): When to Perform Step 2 of the Goodwill Impairment Test for Reporting Units with Zero or Negative Carrying Amounts — a consensus of the FASB Emerging Issues Task Force,” which modifies Step 1 of the goodwill impairment test for reporting units with zero or negative carrying amounts. This amendment requires an entity to perform Step 2 of the goodwill impairment test if it is more likely than not that a goodwill impairment exists and to consider whether there are any adverse qualitative factors indicating that an impairment may exist. Our adoption of ASU No. 2010-28, effective January 1, 2011, had no impact on our consolidated financial condition or results of operations.
Business Combinations	In December 2010, the FASB issued ASU No. 2010-29, “Business Combinations (ASC 805): Disclosure of Supplementary Pro Forma Information for Business Combinations — a consensus of the FASB Emerging Issues Task Force,” which specifies that if a public entity presents comparative financial statements, the entity should disclose revenue and earnings of the combined entity as though the business combination that occurred during the current year had occurred as of the beginning of the comparable prior annual reporting period only. This amendment also expands the supplemental pro forma disclosures under ASC 805 to include a description of the nature and amount of material, nonrecurring pro forma adjustments directly attributable to the business combination included in the reported pro forma revenue and earnings. Our adoption of ASU No. 2010-29, effective January 1, 2011, had no material impact on our consolidated financial condition or results of operations.
Comprehensive Income	In June 2011, the FASB issued ASU No. 2011-05, “Comprehensive Income (ASC 220): Presentation of Comprehensive Income,” which 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. This amendment requires an entity to present on the face of the financial statements reclassification adjustments for items that are reclassified from other comprehensive income to net income. ASU No. 2011-05 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2011. We do not expect the adoption of ASU No. 2011-05 to have a material impact on our consolidated financial condition and results of operations. The presentation and disclosure requirements shall be applied retrospectively for all periods presented.