Income Taxes	9 Months Ended
Jul. 31, 2016
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES Our quarterly provision for income taxes is calculated using an estimated annual effective income tax rate, which is adjusted for discrete items that occur during the reporting period. Our income taxes for the three and nine months ended July 31, 2016 were favorably impacted by a benefit of $19.0 million, including interest of $1.0 million, related to expiring statutes of limitations, $1.8 million in benefits resulting from the adoption of ASU 2016-09, and the positive impact of the 2016 WOTC. In addition, the nine months ended July 31, 2016 also benefited from $4.9 million of WOTC from the retroactive reinstatement of the WOTC for calendar year 2015 and $1.2 million of tax deductions for energy efficient government buildings. Our income taxes for the three and nine months ended July 31, 2015 were favorably impacted by a benefit of $3.4 million related to expiring statutes of limitations and $1.8 million of tax deductions for energy efficient government buildings. In addition, the nine months ended July 31, 2015 also benefited from $3.6 million of WOTC from the retroactive reinstatement of the WOTC for calendar year 2014 and $1.8 million of state employment-based tax credits.

Income Taxes

9 Months Ended

Jul. 31, 2016

INCOME TAXES

Our quarterly provision for income taxes is calculated using an estimated annual effective income tax rate, which is adjusted for discrete items that occur during the reporting period.

Our income taxes for the three and nine months ended July 31, 2016 were favorably impacted by a benefit of $19.0 million, including interest of $1.0 million, related to expiring statutes of limitations, $1.8 million in benefits resulting from the adoption of ASU 2016-09, and the positive impact of the 2016 WOTC. In addition, the nine months ended July 31, 2016 also benefited from $4.9 million of WOTC from the retroactive reinstatement of the WOTC for calendar year 2015 and $1.2 million of tax deductions for energy efficient government buildings.

Our income taxes for the three and nine months ended July 31, 2015 were favorably impacted by a benefit of $3.4 million related to expiring statutes of limitations and $1.8 million of tax deductions for energy efficient government buildings. In addition, the nine months ended July 31, 2015 also benefited from $3.6 million of WOTC from the retroactive reinstatement of the WOTC for calendar year 2014 and $1.8 million of state employment-based tax credits.