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Accounting Standards
9 Months Ended
Sep. 30, 2011
Notes to Financial Statements [Abstract] 
Impact of Recently Issued Accounting Standards
9.  Accounting Standards

In June 2011, the FASB issued ASU No. 2011-05, which requires that comprehensive income and the related components be presented in a single continuous statement or in two separate but consecutive statements. The ASU, which is applied retrospectively, is effective for fiscal years, and interim periods within those years, beginning after December 15, 2011. We are currently evaluating the effect this ASU will have on our consolidated financial statements.