Credit Facility	9 Months Ended
Jul. 31, 2015
Debt Disclosure [Abstract]
Credit Facility	Credit Facility On February 17, 2012, the Company entered into an agreement with several lenders (the Credit Agreement) providing for (i) a $350.0 million senior unsecured revolving credit facility (the Revolver) and (ii) a $150.0 million senior unsecured term loan facility (the Term Loan). Principal payments on a portion of the Term Loan are due in equal quarterly installments of $7.5 million, with the remainder due in October 2016. The Company can elect to make prepayments on the Term Loan, in whole or in part, without premium or penalty. On May 19, 2015, the Credit Agreement was amended and restated in order to increase the size of the Revolver from $350.0 million to $500.0 million and to extend the termination date of the Revolver from October 14, 2016 to May 19, 2020. The amended and restated Credit Agreement also replaced a financial covenant requiring the Company to maintain a minimum specified level of cash with a covenant requiring a minimum interest coverage ratio. Subject to obtaining additional commitments from lenders, the principal amount of the loans provided under the amended and restated Credit Agreement may be increased by the Company by up to an additional $150.0 million through May 2019. The amended and restated Credit Agreement contains financial covenants requiring the Company to operate within a maximum leverage ratio and a minimum interest coverage ratio, as well as other non-financial covenants. As of July 31, 2015, the Company had a $52.5 million outstanding balance under the Term Loan, of which $22.5 million is classified as long term, and a $160.0 million outstanding balance under the Revolver, which is all considered short term. As of October 31, 2014, the Company had a $75.0 million outstanding balance under the Term Loan, of which $45.0 million was classified as long term, and no outstanding balance under the Revolver. Borrowings bear interest at a floating rate based on a margin over the Company’s choice of market observable base rates as defined in the amended and restated Credit Agreement. As of July 31, 2015, borrowings under the Term Loan bore interest at LIBOR +1.125% and the applicable interest rate for the Revolver was LIBOR +1.000%. In addition, commitment fees are payable on the Revolver at rates between 0.125% and 0.200% per year based on the Company’s leverage ratio on the daily amount of the revolving commitment. The carrying amount of the short-term and long-term debt approximates the estimated fair value. These borrowings under the amended and restated Credit Agreement have a variable interest rate structure and are classified within Level 2 of the fair value hierarchy.

Credit Facility

On February 17, 2012, the Company entered into an agreement with several lenders (the Credit Agreement) providing for (i) a $350.0 million senior unsecured revolving credit facility (the Revolver) and (ii) a $150.0 million senior unsecured term loan facility (the Term Loan). Principal payments on a portion of the Term Loan are due in equal quarterly installments of $7.5 million, with the remainder due in October 2016. The Company can elect to make prepayments on the Term Loan, in whole or in part, without premium or penalty. On May 19, 2015, the Credit Agreement was amended and restated in order to increase the size of the Revolver from $350.0 million to $500.0 million and to extend the termination date of the Revolver from October 14, 2016 to May 19, 2020. The amended and restated Credit Agreement also replaced a financial covenant requiring the Company to maintain a minimum specified level of cash with a covenant requiring a minimum interest coverage ratio. Subject to obtaining additional commitments from lenders, the principal amount of the loans provided under the amended and restated Credit Agreement may be increased by the Company by up to an additional $150.0 million through May 2019. The amended and restated Credit Agreement contains financial covenants requiring the Company to operate within a maximum leverage ratio and a minimum interest coverage ratio, as well as other non-financial covenants.

As of July 31, 2015, the Company had a $52.5 million outstanding balance under the Term Loan, of which $22.5 million is classified as long term, and a $160.0 million outstanding balance under the Revolver, which is all considered short term. As of October 31, 2014, the Company had a $75.0 million outstanding balance under the Term Loan, of which $45.0 million was classified as long term, and no outstanding balance under the Revolver. Borrowings bear interest at a floating rate based on a margin over the Company’s choice of market observable base rates as defined in the amended and restated Credit Agreement. As of July 31, 2015, borrowings under the Term Loan bore interest at LIBOR +1.125% and the applicable interest rate for the Revolver was LIBOR +1.000%. In addition, commitment fees are payable on the Revolver at rates between 0.125% and 0.200% per year based on the Company’s leverage ratio on the daily amount of the revolving commitment.

The carrying amount of the short-term and long-term debt approximates the estimated fair value. These borrowings under the amended and restated Credit Agreement have a variable interest rate structure and are classified within Level 2 of the fair value hierarchy.