Goodwill and Intangible Assets Disclosure [Abstract] Schedule of Finite-Lived Intangible Assets by Major Class [Table] Schedule of Finite-Lived Intangible Assets [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Trademarks Trademarks [Member] Composite Composite [Member] Composite [Member] Technology Technology-Based Intangible Assets [Member] Customer relationships Customer Relationships [Member] License and distribution rights and other License And Distribution Rights And Other [Member] License and Distribution Rights and Other [Member] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Gross Carrying Amount Finite-Lived Intangible Assets, Gross Accumulated Amortization & Translation Finite-Lived Intangible Assets, Accumulated Amortization Finite-Lived Intangible Asset, Useful Life Finite-Lived Intangible Asset, Useful Life Other intangible assets, net Intangible Assets, Net (Excluding Goodwill) Share-based Compensation [Abstract] Schedule of Compensation Expense and Related Income Tax Benefit for Share-Based Awards Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Earnings Per Share [Abstract] Net income (loss) attributable to Cooper stockholders Net Income (Loss) Attributable to Parent Basic: Earnings Per Share, Basic [Abstract] Weighted average common shares Weighted Average Number of Shares Outstanding, Basic Basic earnings (loss) per common share attributable to Cooper stockholders Earnings Per Share, Basic Diluted: Earnings Per Share, Diluted [Abstract] Effect of potential dilutive common shares Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Diluted weighted average common shares Weighted Average Number of Shares Outstanding, Diluted Diluted earnings (loss) per common share attributable to Cooper stockholders Earnings Per Share, Diluted Inventory Disclosure [Abstract] Raw materials Inventory, Raw Materials, Net of Reserves Work-in-process Inventory, Work in Process, Net of Reserves Finished goods Inventory, Finished Goods, Net of Reserves Inventories, net Inventory, Net Schedule of Goodwill [Table] Schedule of Goodwill [Table] Business Segments [Axis] Segments [Axis] Segment [Domain] Segments [Domain] CooperVision Coopervision [Member] CooperVision [Member] CooperSurgical Coopersurgical [Member] CooperSurgical [Member] Goodwill [Line Items] Goodwill [Line Items] Goodwill [Roll Forward] Goodwill [Roll Forward] Balance, beginning Goodwill Net additions during the six months ended April 30, 2018 Goodwill, Period Increase (Decrease) Translation Goodwill, Foreign Currency Translation Gain (Loss) Balance, ending Fair Value Disclosures [Abstract] Impairment of intangibles Impairment of Intangible Assets, Finite-lived Fair value of intangible assets Finite-lived Intangible Assets, Fair Value Disclosure Segment Reporting [Abstract] Schedule of Segment Information Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of Identifiable Assets by Segment Reconciliation of Assets from Segment to Consolidated [Table Text Block] Schedule of Net Sales to External Customers by Country of Domicile Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block] Schedule of Long-Lived Assets by Country of Domicile Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block] Share-Based Compensation Plans Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Schedule of Inventories Schedule of Inventory, Current [Table Text Block] Inventories Inventory Disclosure [Text Block] Document And Entity Information [Abstract] Document and Entity Information [Abstract] Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Business Segment Information Segment Reporting Disclosure [Text Block] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Selling, general and administrative expense Selling, General and Administrative Expenses [Member] Cost of sales Cost of Sales [Member] Research and development expense Research and Development Expense [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based compensation expense Share-based Compensation Total share-based compensation expense Allocated Share-based Compensation Expense Related income tax benefit Employee Service Share-based Compensation, Tax Benefit from Compensation Expense Business Combinations [Abstract] Schedule of Acquisitions Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Commitments and Contingencies Disclosure [Abstract] Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] UNITED KINGDOM UNITED KINGDOM Operating Loss Carryforwards [Line Items] Operating Loss Carryforwards [Line Items] Number of putative class action complaints filed (over) Loss Contingency, New Claims Filed, Number Litigation Settlement, Amount Loss Contingency Accrual Diverted profit tax Income Tax Expense (Benefit), Diverted Profit Tax Income Tax Expense (Benefit), Diverted Profit Tax Payment for DPT Payment For Diverted Profit Tax Payment For Diverted Profit Tax Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Statement, Geographical [Axis] Geographical [Axis] Segment, Geographical [Domain] Geographical [Domain] United States UNITED STATES Europe Europe [Member] Rest of world Rest Of World Other Eliminations And Corporate [Member] Rest Of World, Other Eliminations And Corporate [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Total long-lived assets Property, Plant and Equipment, Net Equity [Abstract] Schedule of Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Statement of Financial Position [Abstract] ASSETS Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Trade accounts receivable, net of allowance for doubtful accounts of $15.0 at April 30, 2018 and $10.8 at October 31, 2017 Accounts Receivable, Net, Current Inventories Prepaid expense and other current assets Prepaid Expense and Other Assets, Current Total current assets Assets, Current Property, plant and equipment, at cost Property, Plant and Equipment, Gross Less: accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Property, plant and equipment, net Goodwill Other intangibles, net Deferred tax assets Deferred Tax Assets, Net of Valuation Allowance, Noncurrent Other assets Other Assets, Noncurrent Total assets Assets LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Short-term debt Short-term Debt Accounts payable Accounts Payable, Current Employee compensation and benefits Employee-related Liabilities, Current Other current liabilities Other Liabilities, Current Total current liabilities Liabilities, Current Long-term debt Long-term Debt, Excluding Current Maturities Deferred tax liabilities Deferred Tax Liabilities, Net, Noncurrent Long-term tax payable Accrued Income Taxes, Noncurrent Accrued pension liability and other Accrued pension liability and other This represents the noncurrent liability recognized in the balance sheet that is associated with the defined benefit pension plans. (The current liability will be separate, but it will normally be small, if there is even any at all). It also represents aggregate carrying amount, as of the balance sheet date, of noncurrent obligations not separately disclosed in the balance sheet due to materiality considerations. Noncurrent liabilities are expected to be paid after one year (or the normal operating cycle, if longer). Total liabilities Liabilities Commitments and contingencies Commitments and Contingencies Stockholders’ equity: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Preferred stock, 10 cents par value, shares authorized: 1.0; zero shares issued or outstanding Preferred Stock, Value, Issued Common stock, 10 cents par value, shares authorized: 120.0; issued 52.7 at April 30, 2018 and 52.4 at October 31, 2017 Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Retained earnings Retained Earnings (Accumulated Deficit) Treasury stock at cost: 3.6 shares at April 30, 2018 and 3.6 shares at October 31, 2017 Treasury Stock, Value Noncontrolling interests Stockholders' Equity Attributable to Noncontrolling Interest Stockholders’ equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Total liabilities and stockholders' equity Liabilities and Equity General Discussion of Pension and Other Postretirement Benefits [Abstract] Schedule of Components of Net Periodic Pension Costs Schedule of Net Benefit Costs [Table Text Block] Income Statement [Abstract] Net sales Revenue, Net Cost of sales Cost of Goods and Services Sold Gross profit Gross Profit Selling, general and administrative expense Selling, General and Administrative Expense Research and development expense Research and Development Expense Amortization of intangibles Amortization of Intangible Assets Operating income Operating Income (Loss) Interest expense Interest Expense Other expense (income), net Nonoperating Income (Expense) Income before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest (Benefit) provision for income taxes Income Tax Expense (Benefit) Earnings (loss) per share attributable to Cooper stockholders - basic (in dollars per share) Earnings (loss) per share attributable to Cooper stockholders - diluted (in dollars per share) Number of shares used to compute earnings (loss) per share: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Basic (shares) Diluted (shares) Debt Disclosure [Abstract] Line of Credit Facility [Table] Line of Credit Facility [Table] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Senior Unsecured Term Loan Agreement Senior Unsecured Term Loan Agreement [Member] Senior Unsecured Term Loan Agreement [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Senior Notes Senior Notes [Member] 2016 Credit Agreement 2016 Credit Agreement [Member] 2016 Credit Agreement [Member] Line of Credit Line of Credit [Member] Two Thousand Seventeen Term Loan Agreement Two Thousand Seventeen Term Loan Agreement [Member] Two Thousand Seventeen Term Loan Agreement [Member] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Revolving Credit Facility Revolving Credit Facility [Member] Short-term Debt, Type [Axis] Short-term Debt, Type [Axis] Short-term Debt, Type [Domain] Short-term Debt, Type [Domain] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] Base Rate Base Rate [Member] Federal Funds Rate Federal Funds Rate [Member] Federal Funds Rate [Member] Eurodollar Eurodollar [Member] London Interbank Offered Rate (LIBOR) London Interbank Offered Rate (LIBOR) [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Debt term Debt Instrument, Term Debt instrument, face amount Debt Instrument, Face Amount Debt instrument, basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Line of credit facility, initiation date Line of Credit Facility, Initiation Date Aggregate commitment amount of credit facility Line of Credit Facility, Maximum Borrowing Capacity Term loans Unsecured Long-term Debt, Noncurrent Debt instrument, maturity date Debt Instrument, Maturity Date Line of credit facility, potential additional borrowing capacity Line of Credit Facility, Additional Borrowing Capacity Line of Credit Facility, Additional Borrowing Capacity Line of credit facility interest rate margin on base rate loans percentage Line Of Credit Facility Interest Rate Margin On Base Rate Loans Percentage Line Of Credit Facility Interest Rate Margin On Base Rate Loans Percentage Line of credit facility interest rate margin on foreign currency loans percentage Line Of Credit Facility Interest Rate Margin On Foreign Currency Loans Percentage Line Of Credit Facility Interest Rate Margin On Foreign Currency Loans Percentage Commitment fee percentage Line of Credit Facility, Commitment Fee Percentage Required minimum Interest coverage ratio Required Minimum Interest Coverage Ratio Required minimum interest coverage ratio. Required maximum total leverage ratio Required Maximum Total Leverage Ratio Required maximum total leverage ratio. Interest coverage ratio Interest Coverage Ratio Interest Coverage Ratio Total leverage ratio Total Leverage Ratio Total Leverage Ratio Amount outstanding on credit agreement Line of Credit Facility, Maximum Amount Outstanding During Period Amount available under the credit agreement Line of Credit Facility, Remaining Borrowing Capacity Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Senior Notes [Member] 2016 Credit Agreement [Member] Senior Unsecured Term Loan Agreement [Member] Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Domain] Debt Instrument, Redemption, Period [Domain] Debt Instrument [Line Items] Debt Instrument [Line Items] Line of Credit Facility, Maximum Amount Outstanding During Period Line of Credit Facility, Remaining Borrowing Capacity Short-term: Short-term Debt [Abstract] Overdraft and other credit facilities Line of Credit, Current Long term: Long-term Debt, Unclassified [Abstract] Credit agreement Long-term Line of Credit, Noncurrent Other Other Long-term Debt, Noncurrent Less: unamortized debt issuance cost Long Term Unamortized Debt Issuance Expense Long Term Unamortized Debt Issuance Expense Long-term debt Components of Income Tax Expense (Benefit), Continuing Operations [Abstract] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Scenario, Forecast Scenario, Forecast [Member] Blended tax rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Repatriation tax Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Transition Tax For Accumulated Foreign Earnings, Provisional Income Tax Expense Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Transition Tax For Accumulated Foreign Earnings, Provisional Income Tax Expense Provisional tax expense Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Change In Tax Rate, Deferred Tax Asset, Provisional Income Tax Expense Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Change In Tax Rate, Deferred Tax Asset, Provisional Income Tax Expense Current state and local tax expense (benefit) Current State and Local Tax Expense (Benefit) Withholding taxes relating to the unremitted foreign earnings Tax Cuts And Jobs Act Of 2017, Transition Tax For Accumulated Foreign Earnings, Liability Tax Cuts And Jobs Act Of 2017, Transition Tax For Accumulated Foreign Earnings, Liability Effective income tax rate Effective Income Tax Rate Reconciliation, Percent Effective tax rate increase Effective Income Tax Rate Reconciliation, Tax Cuts And Jobs Act Of 2017, Amount Effective Income Tax Rate Reconciliation, Tax Cuts And Jobs Act Of 2017, Amount Unrecognized tax benefits Unrecognized Tax Benefits Unrecognized tax benefits that could be settled Decrease in Unrecognized Tax Benefits is Reasonably Possible Foreign Currency Translation Adjustment [Roll Forward] Cumulative Translation Adjustment Summary [Roll Forward] Foreign Currency Translation Adjustment, Beginning Balance Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax Foreign Currency Translation Adjustment, Gross change in value for the period Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax Foreign Currency Translation Adjustment, Tax effect for the period Other Comprehensive Income (Loss), Foreign Currency Translation Gain (Loss) Arising During Period, Tax Foreign Currency Translation Adjustment, Ending Balance Minimum Pension Liability [Roll Forward] Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans [Roll Forward] Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans [Roll Forward] Minimum Pension Liability, Beginning Balance Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax Minimum Pension Liability, Gross change in value for the period Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, before Tax Minimum Pension Liability, Tax effect for the period Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax Minimum Pension Liability, Ending Balance Accumulated Other Comprehensive Income (Loss) [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Total, Beginning balance Gross change in value for the period Other Comprehensive Income (Loss), before Reclassifications, before Tax Tax effect for the period Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Total, Ending balance Debt Debt Disclosure [Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] General Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Acquisitions Business Combination Disclosure [Text Block] Statement of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Net (loss) income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Depreciation and amortization Depreciation, Depletion and Amortization Increase in operating capital Increase (Decrease) in Operating Capital Other non-cash items Increase (Decrease) in Accrued Taxes Payable Net cash provided by operating activities Other Noncash Income (Expense) Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Purchases of property, plant and equipment Payments to Acquire Property, Plant, and Equipment Acquisitions of assets and businesses, net of cash acquired, and other Payments for (Proceeds from) Other Investing Activities Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from long-term debt Proceeds from Issuance of Long-term Debt Repayments of long-term debt Repayments of Long-term Debt Net proceeds (repayments) from short-term debt Proceeds from (Repayments of) Short-term Debt Repurchase of common stock Payments for Repurchase of Common Stock Net payments related to share-based compensation awards Payments for Repurchase of Redeemable Noncontrolling Interest Dividends on common stock Payments of Ordinary Dividends, Common Stock Debt acquisition costs Payments of Debt Issuance Costs Payment of contingent consideration Proceeds from (Repayments of) Other Debt Proceeds from construction allowance Proceeds from (Payments for) Other Financing Activities Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities Effect of exchange rate changes on cash and cash equivalents Effect of Exchange Rate on Cash and Cash Equivalents Net increase in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents - beginning of period Cash and cash equivalents - end of period Statement of Comprehensive Income [Abstract] Other comprehensive (loss) income: Other Comprehensive Income (Loss), Net of Tax [Abstract] Foreign currency translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax Comprehensive income (loss) attributable to Cooper stockholders Comprehensive Income (Loss), Net of Tax, Attributable to Parent Contingencies Contingencies Disclosure [Text Block] Corporate Corporate Segment [Member] Total Identifiable assets Service cost Defined Benefit Plan, Service Cost Interest cost Defined Benefit Plan, Interest Cost Expected return on plan assets Defined Benefit Plan, Expected Return on Plan Assets Recognized net actuarial loss Defined Benefit Plan, Actuarial Gain (Loss) Net periodic pension cost Defined Benefit Plan, Net Periodic Benefit Cost Employee Benefits Pension and Other Postretirement Benefits Disclosure [Text Block] Fair Value Measurements Fair Value Disclosures [Text Block] Defined benefit plan, contributions by employer Defined Benefit Plan, Contributions by Employer Defined benefit plan, estimated future employer contributions in current fiscal year Defined Benefit Plans, Estimated Future Employer Contributions in Current Fiscal Year Expected rate of return on plan assets for determining net periodic pension cost Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets (Loss) Earnings Per Share Earnings Per Share [Text Block] Trade accounts receivable, allowance for doubtful accounts Allowance for Doubtful Accounts Receivable, Current Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Preferred stock, shares authorized Preferred Stock, Shares Authorized Preferred stock, shares issued Preferred Stock, Shares Issued Preferred stock, shares outstanding Preferred Stock, Shares Outstanding Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, shares authorized Common Stock, Shares Authorized Common stock, shares issued Common Stock, Shares, Issued Treasury stock, shares Treasury Stock, Shares Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Other Intangible Assets Other Intangible Assets [Member] Assembled Workforce Assembled Workforce [Member] Assembled Workforce [Member] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Series of Individually Immaterial Business Acquisitions Series of Individually Immaterial Business Acquisitions [Member] Paragard Paragard [Member] Paragard [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Business combination, recognized identifiable assets acquired and liabilities assumed, finite-lived intangibles Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles Total Purchase Price Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Total purchase consideration Business Combination, Consideration Transferred Property, plant and equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Inventory Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory Other assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets Total assets acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Less: liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Inventory step up Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Inventory Intangible Assets Intangible Assets Disclosure [Text Block] Share Repurchase Program, increase amount Share Repurchase Program, Increase Amount Share Repurchase Program, Increase Amount Share Repurchase Program, maximum amount authorized Stock Repurchase Program, Authorized Amount Number of common stock repurchased, shares Treasury Stock, Shares, Acquired Common stock repurchased, value Treasury Stock, Common, Value Share Repurchase Program, remaining authorized amount Stock Repurchase Program, Remaining Authorized Repurchase Amount Accounting Pronouncements Issued Not Yet Adopted and Accounting Pronouncements Recently Adopted New Accounting Pronouncements, Policy [Policy Text Block] Schedule of Goodwill Schedule of Goodwill [Table Text Block] Schedule of Other Intangible Assets Schedule of Finite-Lived Intangible Assets [Table Text Block] Finite-lived Intangible Assets Amortization Expense Finite-lived Intangible Assets Amortization Expense [Table Text Block] Stockholders' Equity Stockholders' Equity Note Disclosure [Text Block] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Stock Options Employee Stock Option [Member] Restricted Stock Units (RSUs) Restricted Stock Units (RSUs) [Member] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Numbers of stock option shares excluded Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Range of exercise prices, lower limit Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit Range of exercise prices, upper limit Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit Schedule of Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Stock Options to Purchase Common Stock Not Included in Diluted Net Income Per Share Calculation Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Statement, Operating Activities Segment [Axis] Operating Activities [Axis] Segment, Operating Activities [Domain] Operating Activities [Domain] Toric lens Toric Soft Lens [Member] Toric Soft Lens [Member]. Multifocal lens Multifocal Soft Lens [Member] Multifocal Soft Lens [Member] Single-use sphere lens Single Use Sphere Soft Lens [Member] Single-Use Sphere Soft Lens [Member] Non single-use sphere and other Non Single Use Sphere And Other Eye Care Products [Member] Non Single-Use Sphere And Other Eye Care Products [Member] Operating income (loss) Cash dividend, per share Common Stock, Dividends, Per Share, Cash Paid Dividends payable, date of record Dividends Payable, Date of Record Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] 2018 Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year 2019 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2020 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2022 Finite-Lived Intangible Assets, Amortization Expense, Year Five Goodwill, Impairment Loss Goodwill, Impairment Loss Schedule of Debt Schedule of Debt [Table Text Block] Total net sales to external customers Income Taxes Income Tax Disclosure [Text Block]