General (Policies)	9 Months Ended
Jul. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accounting Changes and Error Corrections	During the first quarter of fiscal 2017, the Company identified and recorded an amount of $4.1 million, net of income tax expense, to reflect a net cumulative decrease to retained earnings as of the opening balance sheet for the fiscal year ended October 31, 2016 and a corresponding net increase in other current liabilities and deferred tax asset, all associated with an understatement of accruals for rebates in prior years. Accordingly, the Company has not revised income statements or cash flows of any periods as the impact to all periods is minimal since the understated rebates liability was accumulated primarily prior to fiscal 2014. Based upon evaluation and consideration of provisions under ASC 250, Accounting Changes and Error Corrections, that incorporates SEC Staff Accounting Bulletin (SAB) No.99, Materiality, we determined that the impact is not material to our prior year's consolidated financial statements. However, we have revised our prior year Balance Sheet at October 31, 2016 in this Quarterly Report on Form 10-Q to reflect this adjustment.
Accounting Pronouncements Issued Not Yet Adopted and Accounting Pronouncements Recently Adopted	Accounting Pronouncements Issued Not Yet Adopted In March 2017, the FASB issued ASU 2017-07, Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost. The ASU requires an entity to disaggregate the service cost component from the other components of net benefit cost. The service cost component is presented in the same line items as other compensation costs arising from services rendered by the pertinent employees during the period and the other components of net benefit costs are presented separately as other income/expense below income from operations. We are currently evaluating the impact of ASU 2017-07, which is effective for the Company in our fiscal year and interim periods beginning November 1, 2018. In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash. ASU 2016-18 provides guidance on the classification and presentation of changes in restricted cash and cash equivalents in the statement of cash flows. ASU 2016-18 will be effective for the Company in fiscal 2019 and is not expected to have a significant impact on the Company's Consolidated Statements of Cash Flows. Early adoption is permitted. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). ASU 2016-01 requires that a lessee recognize the assets and liabilities that arise from operating leases. A lessee should recognize in the statement of financial position a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize lease assets and lease liabilities. In transition, lessees and lessors are required to recognize and measure leases at the beginning of the earliest period presented using a modified retrospective approach. We are currently evaluating the impact of ASU 2016-02, which is effective for the Company in our fiscal year and interim periods beginning on November 1, 2019. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). ASU 2014-09 requires revenue recognition to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. ASU 2014-09 sets forth a new revenue recognition model that requires identifying the contract, identifying the performance obligations, determining the transaction price, allocating the transaction price to performance obligations and recognizing the revenue upon satisfaction of performance obligations. The amendments in the ASU can be applied either retrospectively to each prior reporting period presented or retrospectively with the cumulative effect of initially applying the update recognized at the date of the initial application along with additional disclosures. We are currently evaluating the impact of ASU 2014-09, which is effective for the Company in our fiscal year and interim periods beginning on November 1, 2018. Accounting Pronouncements Recently Adopted In January 2017, the FASB issued ASU 2017-04, Intangibles - Goodwill and other (Topic 350): Simplifying the Test for Goodwill Impairment. FASB eliminated Step 2 from the goodwill impairment test, which required a hypothetical purchase price allocation. Under the amendments in this update, an entity should perform goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount and recognize an impairment charge for the carrying amount which exceeds the reporting unit’s fair value. An entity still has the option to perform the qualitative assessment for a reporting unit to determine if the quantitative impairment test is necessary. The Company has elected to early adopt ASU 2017-04 effective in the third quarter of fiscal 2017. The adoption has no material impact on the Company's reported financial results. In January 2017, the FASB issued ASU 2017-01, Business Combination (Topic 805): Clarifying the Definition of a Business. ASU 2017-01 provides a new framework for determining whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The Company has elected to early adopt ASU 2017-01 effective in the second quarter of fiscal 2017. The adoption has no material impact for the Company. In March 2016, the FASB issued ASU 2016-09, Compensation- Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting, to improve the accounting for share-based payments to employees. ASU 2016-09 requires excess tax benefits (windfall tax benefits) and tax deficiencies (shortfalls) to be recognized as income tax expense or benefit in the income statement when awards vest or are settled. Companies will no longer record excess tax benefits and certain tax deficiencies in additional paid-in capital. This ASU also requires companies to classify cash flows resulting from employee share-based payments, including the additional tax benefits or expenses related to the vesting or settlement of share-based awards, as cash flows from operating activities rather than financing activities. The standard also allows for additional employee tax withholding on the exercise or release of awards, without triggering liability classification of the award. Finally, the update allows an accounting policy election for the treatment of forfeitures of stock based awards. Companies can elect to continue to estimate forfeitures expected to occur, or account for forfeitures as they occur. The Company has elected to early adopt ASU 2016-09 effective November 1, 2016. Accordingly, the Company recognized $17.9 million in deferred tax assets associated with excess tax benefits not previously recognized in deferred taxes as a cumulative-effect adjustment to retained earnings at November 1, 2016. The Company also recognized excess tax benefits as a discrete income tax benefit of $13.4 million during the first nine months of fiscal 2017, which is classified as an operating activity in the Consolidated Statements of Cash Flows on a prospective basis. The Company elected to continue to estimate forfeitures that are expected to occur when estimating the amount of compensation expense to record in each accounting period. In November 2015, the FASB issued ASU 2015-17, Balance Sheet Classification of Deferred Taxes, which requires entities to present all deferred tax assets and liabilities as noncurrent in the Balance Sheet. ASU 2015-17 can be early adopted for any period that has not been issued on a prospective or retrospective basis. The Company elected to early adopt this guidance on a prospective basis for the quarter ended January 31, 2017. No prior periods were retrospectively adjusted.

Accounting Pronouncements Issued Not Yet Adopted

In March 2017, the FASB issued ASU 2017-07, Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost. The ASU requires an entity to disaggregate the service cost component from the other components of net benefit cost. The service cost component is presented in the same line items as other compensation costs arising from services rendered by the pertinent employees during the period and the other components of net benefit costs are presented separately as other income/expense below income from operations. We are currently evaluating the impact of ASU 2017-07, which is effective for the Company in our fiscal year and interim periods beginning November 1, 2018.

In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash. ASU 2016-18 provides guidance on the classification and presentation of changes in restricted cash and cash equivalents in the statement of cash flows. ASU 2016-18 will be effective for the Company in fiscal 2019 and is not expected to have a significant impact on the Company's Consolidated Statements of Cash Flows. Early adoption is permitted.

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). ASU 2016-01 requires that a lessee recognize the assets and liabilities that arise from operating leases. A lessee should recognize in the statement of financial position a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize lease assets and lease liabilities. In transition, lessees and lessors are required to recognize and measure leases at the beginning of the earliest period presented using a modified retrospective approach. We are currently evaluating the impact of ASU 2016-02, which is effective for the Company in our fiscal year and interim periods beginning on November 1, 2019.

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). ASU 2014-09 requires revenue recognition to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. ASU 2014-09 sets forth a new revenue recognition model that requires identifying the contract, identifying the performance obligations, determining the transaction price, allocating the transaction price to performance obligations and recognizing the revenue upon satisfaction of performance obligations. The amendments in the ASU can be applied either retrospectively to each prior reporting period presented or retrospectively with the cumulative effect of initially applying the update recognized at the date of the initial application along with additional disclosures. We are currently evaluating the impact of ASU 2014-09, which is effective for the Company in our fiscal year and interim periods beginning on November 1, 2018.

Accounting Pronouncements Recently Adopted

In January 2017, the FASB issued ASU 2017-04, Intangibles - Goodwill and other (Topic 350): Simplifying the Test for Goodwill Impairment. FASB eliminated Step 2 from the goodwill impairment test, which required a hypothetical purchase price allocation. Under the amendments in this update, an entity should perform goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount and recognize an impairment charge for the carrying amount which exceeds the reporting unit’s fair value. An entity still has the option to perform the qualitative assessment for a reporting unit to determine if the quantitative impairment test is necessary. The Company has elected to early adopt ASU 2017-04 effective in the third quarter of fiscal 2017. The adoption has no material impact on the Company's reported financial results.

In January 2017, the FASB issued ASU 2017-01, Business Combination (Topic 805): Clarifying the Definition of a Business. ASU 2017-01 provides a new framework for determining whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The Company has elected to early adopt ASU 2017-01 effective in the second quarter of fiscal 2017. The adoption has no material impact for the Company.

In March 2016, the FASB issued ASU 2016-09, Compensation- Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting, to improve the accounting for share-based payments to employees. ASU 2016-09 requires excess tax benefits (windfall tax benefits) and tax deficiencies (shortfalls) to be recognized as income tax expense or benefit in the income statement when awards vest or are settled. Companies will no longer record excess tax benefits and certain tax deficiencies in additional paid-in capital. This ASU also requires companies to classify cash flows resulting from employee share-based payments, including the additional tax benefits or expenses related to the vesting or settlement of share-based awards, as cash flows from operating activities rather than financing activities. The standard also allows for additional employee tax withholding on the exercise or release of awards, without triggering liability classification of the award. Finally, the update allows an accounting policy election for the treatment of forfeitures of stock based awards. Companies can elect to continue to estimate forfeitures expected to occur, or account for forfeitures as they occur. The Company has elected to early adopt ASU 2016-09 effective November 1, 2016.

Accordingly, the Company recognized $17.9 million in deferred tax assets associated with excess tax benefits not previously recognized in deferred taxes as a cumulative-effect adjustment to retained earnings at November 1, 2016. The Company also recognized excess tax benefits as a discrete income tax benefit of $13.4 million during the first nine months of fiscal 2017, which is classified as an operating activity in the Consolidated Statements of Cash Flows on a prospective basis. The Company elected to continue to estimate forfeitures that are expected to occur when estimating the amount of compensation expense to record in each accounting period.

In November 2015, the FASB issued ASU 2015-17, Balance Sheet Classification of Deferred Taxes, which requires entities to present all deferred tax assets and liabilities as noncurrent in the Balance Sheet. ASU 2015-17 can be early adopted for any period that has not been issued on a prospective or retrospective basis. The Company elected to early adopt this guidance on a prospective basis for the quarter ended January 31, 2017. No prior periods were retrospectively adjusted.