Income Taxes	9 Months Ended
Sep. 30, 2011
Income Taxes [Abstract]
Income Taxes	NOTE 13. Income Taxes Susquehanna's provision for income taxes during interim reporting periods historically has been calculated by applying an estimate of the annual effective tax rate for the full fiscal year to "ordinary" income or loss (pre-tax income or loss excluding significant, unusual or infrequently occurring items) for the reporting period. For the reporting period ended September 30, 2011, Susquehanna has computed its provision for income taxes based on the actual effective tax rate for the year-to-date by applying the discrete method. Susquehanna determined that, as small changes in estimated "ordinary" income result in significant changes in the estimated annual effective tax rate, the historical method would not provide a reliable estimate for the reporting period ended September 30, 2011. The actual effective rate for the reporting period ended September 30, 2011 was impacted by the level of permanent differences, including tax-advantaged investment and loan income, resulting in an effective rate below statutory rates for the interim reporting periods.

Income Taxes

9 Months Ended

Sep. 30, 2011

NOTE 13. Income Taxes

Susquehanna's provision for income taxes during interim reporting periods historically has been calculated by applying an estimate of the annual effective tax rate for the full fiscal year to "ordinary" income or loss (pre-tax income or loss excluding significant, unusual or infrequently occurring items) for the reporting period. For the reporting period ended September 30, 2011, Susquehanna has computed its provision for income taxes based on the actual effective tax rate for the year-to-date by applying the discrete method. Susquehanna determined that, as small changes in estimated "ordinary" income result in significant changes in the estimated annual effective tax rate, the historical method would not provide a reliable estimate for the reporting period ended September 30, 2011. The actual effective rate for the reporting period ended September 30, 2011 was impacted by the level of permanent differences, including tax-advantaged investment and loan income, resulting in an effective rate below statutory rates for the interim reporting periods.