Income Taxes	9 Months Ended
Jul. 31, 2015
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes We recorded an income tax provision of $102.0 million and $107.5 million for the nine months ended July 31, 2015 and 2014, respectively. The effective tax rate for the nine months ended July 31, 2015, was 32.1%, compared to 34.0% for the nine months ended July 31, 2014. The income tax provisions for both periods included tax benefits related to the utilization of domestic production activities deductions and other permanent differences, offset by the provision for state income taxes and interest accrued on unrecognized tax benefits. The income tax provision for the nine months ended July 31, 2015, also benefited from a $13.7 million reversal of a previously recognized tax provision related to a settlement with a taxing jurisdiction. The income tax provision for the nine months ended July 31, 2014 also benefited from the reversal of a previously recognized tax provision related to the expiration of the statute of limitations and the settlement of a state income tax audit. We recorded an income tax provision of $40.7 million and $53.6 million for the three months ended July 31, 2015 and 2014, respectively. The effective tax rate for the three months ended July 31, 2015, was 37.9%, compared to 35.4% for the three months ended July 31, 2014. The income tax provisions for both periods included the provision for state income taxes and interest accrued on unrecognized tax benefits offset by benefits related to the utilization of domestic production activities deductions and other permanent differences. We currently operate in 19 states and are subject to various state tax jurisdictions. We estimate our state tax liability based upon the individual taxing authorities’ regulations, estimates of income by taxing jurisdiction, and our ability to utilize certain tax-saving strategies. Based on our estimate of the allocation of income or loss among the various taxing jurisdictions and changes in tax regulations and their impact on our tax strategies, we estimate our rate for the full fiscal year for state income taxes at 6.7% and 7.2% for fiscal 2015 and 2014, respectively. For state tax purposes, due to past and projected losses in certain jurisdictions where we do not have carryback potential and/or cannot sufficiently forecast future taxable income, we recognized net cumulative valuation allowances against our state deferred tax assets of $42.4 million and $43.8 million as of July 31, 2015 and October 31, 2014, respectively. At July 31, 2015, we had $40.7 million of gross unrecognized tax benefits, including interest and penalties. If these unrecognized tax benefits were to reverse in the future, they would have a beneficial impact on our effective tax rate at that time. During the next 12 months, it is reasonably possible that our unrecognized tax benefits may decrease slightly, primarily due to the expiration of certain statutes of limitations and potential settlements with taxing jurisdictions.

Income Taxes

We recorded an income tax provision of $102.0 million and $107.5 million for the nine months ended July 31, 2015 and 2014, respectively. The effective tax rate for the nine months ended July 31, 2015, was 32.1%, compared to 34.0% for the nine months ended July 31, 2014. The income tax provisions for both periods included tax benefits related to the utilization of domestic production activities deductions and other permanent differences, offset by the provision for state income taxes and interest accrued on unrecognized tax benefits. The income tax provision for the nine months ended July 31, 2015, also benefited from a $13.7 million reversal of a previously recognized tax provision related to a settlement with a taxing jurisdiction. The income tax provision for the nine months ended July 31, 2014 also benefited from the reversal of a previously recognized tax provision related to the expiration of the statute of limitations and the settlement of a state income tax audit.

We recorded an income tax provision of $40.7 million and $53.6 million for the three months ended July 31, 2015 and 2014, respectively. The effective tax rate for the three months ended July 31, 2015, was 37.9%, compared to 35.4% for the three months ended July 31, 2014. The income tax provisions for both periods included the provision for state income taxes and interest accrued on unrecognized tax benefits offset by benefits related to the utilization of domestic production activities deductions and other permanent differences.

We currently operate in 19 states and are subject to various state tax jurisdictions. We estimate our state tax liability based upon the individual taxing authorities’ regulations, estimates of income by taxing jurisdiction, and our ability to utilize certain tax-saving strategies. Based on our estimate of the allocation of income or loss among the various taxing jurisdictions and changes in tax regulations and their impact on our tax strategies, we estimate our rate for the full fiscal year for state income taxes at 6.7% and 7.2% for fiscal 2015 and 2014, respectively.

For state tax purposes, due to past and projected losses in certain jurisdictions where we do not have carryback potential and/or cannot sufficiently forecast future taxable income, we recognized net cumulative valuation allowances against our state deferred tax assets of $42.4 million and $43.8 million as of July 31, 2015 and October 31, 2014, respectively.

At July 31, 2015, we had $40.7 million of gross unrecognized tax benefits, including interest and penalties. If these unrecognized tax benefits were to reverse in the future, they would have a beneficial impact on our effective tax rate at that time. During the next 12 months, it is reasonably possible that our unrecognized tax benefits may decrease slightly, primarily due to the expiration of certain statutes of limitations and potential settlements with taxing jurisdictions.