General (Policies)	9 Months Ended
Jul. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accounting Pronouncements Recently Adopted and Accounting Pronouncements Issued Not Yet Adopted	Accounting Pronouncements Recently Adopted In July 2019, the FASB issued ASU 2019-07, Codification Updates to SEC Sections. The ASU clarifies or improves the disclosure and presentation requirements of a variety of codification topics by aligning them with the SEC’s regulations, thereby eliminating redundancies and making the codification easier to apply. The Company adopted this guidance during third quarter of fiscal 2019, and it did not have a material impact on the Company’s reported consolidated financial results. In March 2017, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (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 now presented in the same income statement line 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 operating income. The Company adopted this guidance on November 1, 2018, and it did not have a material impact on the Company’s reported consolidated financial results. In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory, which requires entities to recognize the income tax consequences on an intra-entity transfer of an asset other than inventory when the transfer occurs. The ASU changes the timing of the recognition of the income tax consequences of non-inventory transfers which under previous guidance deferred the income tax consequences until the asset was sold to an outside party or otherwise recognized. The guidance for the amendments of ASU 2016-16 requires companies to apply a modified retrospective approach with a cumulative catch-up adjustment to opening retained earnings in the period of adoption. The Company adopted ASU 2016-16 in the first quarter of fiscal 2019 on a modified retrospective basis. The Company recorded the cumulative effect of the change as a decrease to retained earnings of approximately $13.3 million. The cumulative effect adjustment represents the recognition of unrecognized income tax effects from intra-entity transfers of assets other than inventory that occurred prior to the date of adoption. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). The ASU requires revenue recognition to depict the transfer of goods or services to customers at an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The amendments in the ASU can be applied either retrospectively to each prior reporting period presented or alternatively, the modified retrospective transition method whereby the company recognizes the cumulative effect of initially applying the guidance as an opening balance sheet adjustment to equity in the period of initial application. This alternative approach must be supplemented by additional disclosures. We adopted ASU 2014-09 on November 1, 2018, using the modified retrospective transition method. We did not recognize any cumulative effect of initially applying the new revenue standard as an adjustment to our opening balance of retained earnings due to its immaterial impact. The comparative information has not been restated and continues to be reported under the accounting standards in effect for those periods. There was no material impact of ASU 2014-09 to our financial statements during the three and nine months ended July 31, 2019. We do not expect the adoption of the new revenue standard to have a material impact to our net income on an ongoing basis. The Company applies the provisions of Accounting Standards Codification (ASC) 606-10 or ASU 2014-09, Revenue from Contracts with Customers, and all related appropriate guidance. The Company recognizes revenue under the core principle to depict the transfer of control to the Company’s customers in an amount reflecting the consideration to which the Company expects to be entitled. In order to achieve that core principle, the Company applies the following five step approach: (1) identify the contract with a customer, (2) identify the performance obligations in the contract, (3) determine the transaction price, (4) allocate the transaction price to the performance obligations in the contract, and (5) recognize revenue when a performance obligation is satisfied. For a complete discussion of accounting for net product revenue, see Note 2. Revenue Recognition. Accounting Pronouncements Issued Not Yet Adopted In November 2018, the FASB issued ASU 2018-18, Collaborative Arrangements (Topic 808), Clarifying the Interaction between Topic 808 and Topic 606. This guidance amended Topic 808 and Topic 606 to clarify that transactions in a collaborative arrangement should be accounted for under Topic 606 when the counterparty is a customer for a distinct good or service (i.e., unit of account). The amendments preclude an entity from presenting consideration from a transaction in a collaborative arrangement as revenue from contracts with customers if the counterparty is not a customer for that transaction. We are currently evaluating the impact of ASU 2018-18 which is effective for the Company in our fiscal year and interim periods beginning on November 1, 2020. In August 2018, the FASB issued ASU 2018-15, Intangibles-Goodwill and Other - Internal Use Software (Subtopic 350-40): Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That is a Service Contract. This guidance requires companies to apply the internal-use software guidance in ASC 350-40 to implementation costs incurred in a hosting arrangement that is a service contract to determine whether to capitalize certain implementation costs or expense them as incurred. We are currently evaluating the impact of ASU 2018-15 which is effective for the Company in our fiscal year and interim periods beginning on November 1, 2020. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). ASU 2016-02 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 (ROU) 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. In July 2018, the FASB issued ASU 2018-10, Codification Improvements to Topic 842, Leases and ASU 2018-11, Leases Topic 842 Target improvements, which provides an additional (and optional) transition method whereby the new lease standard is applied at the adoption date and recognized as an adjustment to retained earnings. In March 2019, the FASB issued ASU 2019-01, Leases (Topic 842) Codification Improvements, which further clarifies the determination of fair value of the underlying asset by lessors that are not manufacturers or dealers and modifies transition disclosure requirements for changes in accounting principles and other technical updates. This standard is effective for the Company in our fiscal year and interim periods beginning on November 1, 2019. We anticipate this standard to have a material impact on our Consolidated Balance Sheets and related disclosures due to the recognition of ROU assets and lease liabilities for operating leases. However, we do not expect the adoption to have a material impact on our Consolidated Statements of Income. We are continuing to assess and evaluate the potential impacts of the standard as well as the election of transition method and certain practical expedients available within ASU 2019-01. We are in the process of documenting and analyzing our lease contracts, assessing business processes and controls, implementing a system solution and completing our analysis of information necessary to determine the impact to the consolidated financial statements.
Revenue Recognition	Product Revenue, Net The Company sells its products principally to a limited number of distributors, group purchasing organizations, eye care or health care professionals including independent practices, corporate retailers, hospitals and clinics or authorized resellers (collectively, its Customers). These Customers subsequently resell the Company’s products to eye care or health care providers and patients. In addition to product supply and distribution agreements with Customers, the Company enters into arrangements with health care providers and payors that provide for government-mandated and/or privately-negotiated rebates, chargebacks and discounts with respect to the purchase of the Company’s products. The Company considers customer purchase orders, which in some cases are governed by master sales agreements, to be contracts with a customer. In situations where sales are to a distributor, the Company has concluded that its contracts are with the distributor. As part of its consideration of the contract, the Company evaluates certain factors including the customer’s ability to pay (or credit risk). For each contract, the Company considers the promise to transfer products, each of which is distinct, to be the identified performance obligations. Revenues from product sales are recognized when the Customer obtains control of the Company’s product, which occurs at a point in time, typically upon shipment or delivery to the Customer. When the Company performs shipping and handling activities after the transfer of control to the Customer (e.g., when control transfers prior to delivery), they are considered as fulfillment activities, and accordingly, the costs are accrued for when the related revenue is recognized. Taxes collected from Customers relating to product sales and remitted to governmental authorities are excluded from revenues. The Company does not have any revenue recognized on payment expected to be received more than one year after the transfer of control of the products. The Company expenses incremental costs of obtaining a contract as and when incurred if the expected amortization period of the asset that the Company would have recognized is one year or less. See Note14. Business Segment Information, for disaggregation of revenue. Reserves for Variable Consideration Revenues from product sales are recorded at the net sales price (transaction price), which includes estimates of variable consideration for which reserves are established and which result from discounts, returns, chargebacks, rebates and other allowances that are offered within contracts between the Company and its Customers, health care providers, payors and other indirect customers relating to the Company’s sales of its products. These reserves are based on the amounts earned or to be claimed on the related sales and are classified primarily in current liabilities. Variable consideration is estimated based on the most likely amount or expected value approach, depending on which method the Company expects to better predict the amount of consideration to which it will be entitled. Once the Company elects one of the methods to estimate variable consideration for a particular type of performance obligation, the Company applies that method consistently. Where appropriate, these estimates take into consideration a range of possible outcomes which are probability-weighted for relevant factors such as the Company’s historical experience, current contractual and statutory requirements, specific known market events and trends, industry data and forecasted customer buying and payment patterns. Overall, these reserves reflect the Company’s best estimates of the amount of consideration to which it is entitled based on the terms of the contract. Actual amounts of consideration ultimately received may differ from the Company’s estimates. If actual results in the future vary from the Company’s estimates, the Company adjusts these estimates, which would affect net product revenue and earnings in the period such variances become known. Trade Discounts and Allowances The Company generally provides Customers with discounts, which include incentive fees that are stated in the Company’s contracts and are recorded as a reduction of revenue in the period the related product revenue is recognized. In addition, the Company receives sales order management, data and distribution services from certain Customers. To the extent the services received are distinct from the Company’s sale of products to the Customer and have readily determinable fair value, these payments are classified in selling, general and administrative expenses in the Consolidated Statements of Income of the Company. Product Returns Consistent with industry practice, the Company generally offers Customers a limited right of return for a product that has been purchased from the Company. The Company estimates the amount of its product sales that may be returned by its Customers and records this estimate as a reduction of revenue in the period the related product revenue is recognized. There is inherent judgment in estimating future refunds as they are susceptible to factors outside of our influence. However, we have significant experience in estimating the amount of refunds, based primarily on historical data. Our refund liability for product returns was $9.9 million at July 31, 2019 which is included in Accrued Liabilities on our Condensed Consolidated Balance Sheets and represents the expected value of the aggregate refunds that will be due to our customers. Rebates and Chargebacks Rebates are estimated based on contractual terms, historical experience, customer mix, trend analysis and projected market conditions in the various markets served. Chargebacks for fees and discounts to providers represent the estimated obligations resulting from contractual commitments to sell products to qualified healthcare providers at prices lower than the list wholesale prices charged to the Company’s direct customers. For certain office and surgical products in CooperSurgical, customers charge the Company for the difference between what they pay for the product and the ultimate selling price to the qualified healthcare providers. These reserves are established in the same period that the related revenue is recognized, resulting in a reduction of product revenue. Chargeback amounts are generally determined at the time of resale to the qualified healthcare provider by Customers. CooperSurgical rebates are predominately related to the Medicaid rebate provision that is estimated based upon contractual terms, historical experience, and trend analysis. Contract balances The timing of billing and revenue recognition primarily occurs simultaneously. The Company does not have material contract assets or liabilities.

General (Policies)

9 Months Ended

Jul. 31, 2019

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Accounting Pronouncements Recently Adopted and Accounting Pronouncements Issued Not Yet Adopted

Accounting Pronouncements Recently Adopted

In July 2019, the FASB issued ASU 2019-07, Codification Updates to SEC Sections. The ASU clarifies or improves the disclosure and presentation requirements of a variety of codification topics by aligning them with the SEC’s regulations, thereby eliminating redundancies and making the codification easier to apply. The Company adopted this guidance during third quarter of fiscal 2019, and it did not have a material impact on the Company’s reported consolidated financial results.

In March 2017, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (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 now presented in the same income statement line 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 operating income. The Company adopted this guidance on November 1, 2018, and it did not have a material impact on the Company’s reported consolidated financial results.

In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory, which requires entities to recognize the income tax consequences on an intra-entity transfer of an asset other than inventory when the transfer occurs. The ASU changes the timing of the recognition of the income tax consequences of non-inventory transfers which under previous guidance deferred the income tax consequences until the asset was sold to an outside party or otherwise recognized. The guidance for the amendments of ASU 2016-16 requires companies to apply a modified retrospective approach with a cumulative catch-up adjustment to opening retained earnings in the period of adoption. The Company adopted ASU 2016-16 in the first quarter of fiscal 2019 on a modified retrospective basis. The Company recorded the cumulative effect of the change as a decrease to retained earnings of approximately $13.3 million. The cumulative effect adjustment represents the recognition of unrecognized income tax effects from intra-entity transfers of assets other than inventory that occurred prior to the date of adoption.

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). The ASU requires revenue recognition to depict the transfer of goods or services to customers at an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The amendments in the ASU can be applied either retrospectively to each prior reporting period presented or alternatively, the modified retrospective transition method whereby the company recognizes the cumulative effect of initially applying the guidance as an opening balance sheet adjustment to equity in the period of initial application. This alternative approach must be supplemented by additional disclosures.

We adopted ASU 2014-09 on November 1, 2018, using the modified retrospective transition method. We did not recognize any cumulative effect of initially applying the new revenue standard as an adjustment to our opening balance of retained earnings due to its immaterial impact. The comparative information has not been restated and continues to be reported under the accounting standards in effect for those periods. There was no material impact of ASU 2014-09 to our financial statements during the three and nine months ended July 31, 2019. We do not expect the adoption of the new revenue standard to have a material impact to our net income on an ongoing basis.

The Company applies the provisions of Accounting Standards Codification (ASC) 606-10 or ASU 2014-09, Revenue from Contracts with Customers, and all related appropriate guidance. The Company recognizes revenue under the core principle to depict the transfer of control to the Company’s customers in an amount reflecting the consideration to which the Company expects to be entitled. In order to achieve that core principle, the Company applies the following five step approach: (1) identify the contract with a customer, (2) identify the performance obligations in the contract, (3) determine the transaction price, (4) allocate the transaction price to the performance obligations in the contract, and (5) recognize revenue when a performance obligation is satisfied. For a complete discussion of accounting for net product revenue, see Note 2. Revenue Recognition.

Accounting Pronouncements Issued Not Yet Adopted

In November 2018, the FASB issued ASU 2018-18, Collaborative Arrangements (Topic 808), Clarifying the Interaction between Topic 808 and Topic 606. This guidance amended Topic 808 and Topic 606 to clarify that transactions in a collaborative arrangement should be accounted for under Topic 606 when the counterparty is a customer for a distinct good or service (i.e., unit of account). The amendments preclude an entity from presenting consideration from a transaction in a collaborative arrangement as revenue from contracts with customers if the counterparty is not a customer for that transaction. We are currently evaluating the impact of ASU 2018-18 which is effective for the Company in our fiscal year and interim periods beginning on November 1, 2020.

In August 2018, the FASB issued ASU 2018-15, Intangibles-Goodwill and Other - Internal Use Software (Subtopic 350-40): Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That is a Service Contract. This guidance requires companies to apply the internal-use software guidance in ASC 350-40 to implementation costs incurred in a hosting arrangement that is a service contract to determine whether to capitalize certain implementation costs or expense them as incurred. We are currently evaluating the impact of ASU 2018-15 which is effective for the Company in our fiscal year and interim periods beginning on November 1, 2020.

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). ASU 2016-02 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 (ROU) 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. In July 2018, the FASB issued ASU 2018-10, Codification Improvements to Topic 842, Leases and ASU 2018-11, Leases Topic 842 Target improvements, which provides an additional (and optional) transition method whereby the new lease standard is applied at the adoption date and recognized as an adjustment to retained earnings. In March 2019, the FASB issued ASU 2019-01, Leases (Topic 842) Codification Improvements, which further clarifies the determination of fair value of the underlying asset by lessors that are not manufacturers or dealers and modifies transition disclosure requirements for changes in accounting principles and other technical updates. This standard is effective for the Company in our fiscal year and interim periods beginning on November 1, 2019.

We anticipate this standard to have a material impact on our Consolidated Balance Sheets and related disclosures due to the recognition of ROU assets and lease liabilities for operating leases. However, we do not expect the adoption to have a material impact on our Consolidated Statements of Income. We are continuing to assess and evaluate the potential impacts of the standard as well as the election of transition method and certain practical expedients available within ASU 2019-01. We are in the process of documenting and analyzing our lease contracts, assessing business processes and controls, implementing a system solution and completing our analysis of information necessary to determine the impact to the consolidated financial statements.

Revenue Recognition

Product Revenue, Net

The Company sells its products principally to a limited number of distributors, group purchasing organizations, eye care or health care professionals including independent practices, corporate retailers, hospitals and clinics or authorized resellers (collectively, its Customers). These Customers subsequently resell the Company’s products to eye care or health care

providers and patients. In addition to product supply and distribution agreements with Customers, the Company enters into arrangements with health care providers and payors that provide for government-mandated and/or privately-negotiated rebates, chargebacks and discounts with respect to the purchase of the Company’s products. The Company considers customer purchase orders, which in some cases are governed by master sales agreements, to be contracts with a customer. In situations where sales are to a distributor, the Company has concluded that its contracts are with the distributor. As part of its consideration of the contract, the Company evaluates certain factors including the customer’s ability to pay (or credit risk). For each contract, the Company considers the promise to transfer products, each of which is distinct, to be the identified performance obligations.

Revenues from product sales are recognized when the Customer obtains control of the Company’s product, which occurs at a point in time, typically upon shipment or delivery to the Customer. When the Company performs shipping and handling activities after the transfer of control to the Customer (e.g., when control transfers prior to delivery), they are considered as fulfillment activities, and accordingly, the costs are accrued for when the related revenue is recognized. Taxes collected from Customers relating to product sales and remitted to governmental authorities are excluded from revenues. The Company does not have any revenue recognized on payment expected to be received more than one year after the transfer of control of the products. The Company expenses incremental costs of obtaining a contract as and when incurred if the expected amortization period of the asset that the Company would have recognized is one year or less. See Note14. Business Segment Information, for disaggregation of revenue.

Reserves for Variable Consideration

Revenues from product sales are recorded at the net sales price (transaction price), which includes estimates of variable consideration for which reserves are established and which result from discounts, returns, chargebacks, rebates and other allowances that are offered within contracts between the Company and its Customers, health care providers, payors and other indirect customers relating to the Company’s sales of its products. These reserves are based on the amounts earned or to be claimed on the related sales and are classified primarily in current liabilities. Variable consideration is estimated based on the most likely amount or expected value approach, depending on which method the Company expects to better predict the amount of consideration to which it will be entitled. Once the Company elects one of the methods to estimate variable consideration for a particular type of performance obligation, the Company applies that method consistently.

Where appropriate, these estimates take into consideration a range of possible outcomes which are probability-weighted for relevant factors such as the Company’s historical experience, current contractual and statutory requirements, specific known market events and trends, industry data and forecasted customer buying and payment patterns. Overall, these reserves reflect the Company’s best estimates of the amount of consideration to which it is entitled based on the terms of the contract. Actual amounts of consideration ultimately received may differ from the Company’s estimates. If actual results in the future vary from the Company’s estimates, the Company adjusts these estimates, which would affect net product revenue and earnings in the period such variances become known.

Trade Discounts and Allowances

The Company generally provides Customers with discounts, which include incentive fees that are stated in the Company’s contracts and are recorded as a reduction of revenue in the period the related product revenue is recognized. In addition, the Company receives sales order management, data and distribution services from certain Customers. To the extent the services received are distinct from the Company’s sale of products to the Customer and have readily determinable fair value, these payments are classified in selling, general and administrative expenses in the Consolidated Statements of Income of the Company.

Product Returns

Consistent with industry practice, the Company generally offers Customers a limited right of return for a product that has been purchased from the Company. The Company estimates the amount of its product sales that may be returned by its Customers and records this estimate as a reduction of revenue in the period the related product revenue is recognized. There is inherent judgment in estimating future refunds as they are susceptible to factors outside of our influence. However, we have significant experience in estimating the amount of refunds, based primarily on historical data. Our refund liability for product returns was $9.9 million at July 31, 2019 which is included in Accrued Liabilities on our Condensed Consolidated Balance Sheets and represents the expected value of the aggregate refunds that will be due to our customers.

Rebates and Chargebacks

Rebates are estimated based on contractual terms, historical experience, customer mix, trend analysis and projected market conditions in the various markets served.

Chargebacks for fees and discounts to providers represent the estimated obligations resulting from contractual commitments to sell products to qualified healthcare providers at prices lower than the list wholesale prices charged to the Company’s direct customers. For certain office and surgical products in CooperSurgical, customers charge the Company for the difference between what they pay for the product and the ultimate selling price to the qualified healthcare providers. These reserves are established in the same period that the related revenue is recognized, resulting in a reduction of product revenue. Chargeback amounts are generally determined at the time of resale to the qualified healthcare provider by Customers. CooperSurgical rebates are predominately related to the Medicaid rebate provision that is estimated based upon contractual terms, historical experience, and trend analysis.

Contract balances

The timing of billing and revenue recognition primarily occurs simultaneously. The Company does not have material contract assets or liabilities.