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operations13false0us-gaap_EarningsPerShareDilutedus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsetotallabel1truefalsefalse1.131.13falsetruefalsefalsefalse2truefalsefalse0.190.19falsetruefalsefalsefalse3truefalsefalse0.060.06falsetruefalsefalsefalse4truefalsefalse0.250.25falsetruefalsefalsefalse5truefalsefalse0.840.84falsetruefalsefalsefalse6truefalsefalse0.110.11falsetruefalsefalsefalse7falsefalsefalse00falsefalsefalsefalsefalse8truefalsefalse0.110.11falsetruefalsefalsefalse9truefalsefalse1.631.63falsetruefalsefalsefalse10truefalsefalse1.081.08falsetruefalsefalsefalse11truefalsefalse2.572.57falsetruefalsefalsefalseEPSus-types:perShareItemTypedecimalThe amount of net income or loss for the period per each share of common stock and dilutive common stock equivalents outstanding during the reporting period.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 11, 12, 36 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 20 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 18 -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 21 -Article 9 truetrueNet income119Quarterly Results of Operations (Unaudited) (Details) (USD $)MillionsUnKnownNoRoundingUnKnownfalsetrue