Amendment Flag Current Fiscal Year End Date Document Period End Date Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Filer Category Entity Public Float Entity Registrant Name Entity Central Index Key Entity Common Stock, Shares Outstanding Document Fiscal Year Focus Document Fiscal Period Focus Document Type Entity Shell Company Entity Emerging Growth Company Entity Ex Transition Period Entity Small Business Investment [Axis] Investment [Domain] AOCI Including Portion Attributable to Noncontrolling Interest [Member] AOCI Attributable to Noncontrolling Interest [Member] Award Type [Axis] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract] ASU 2014-09 [Member] Accounts payable ACCRUED LIABILITIES Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block] Amount due currently to related party at end of period Accounts Payable, Related Parties, Current Accounts Receivable [Member] Accounts receivable Accounts receivable, net of allowance of $1,526 in 2018 and $2,319 in 2017 Value added and other taxes Accrual for Taxes Other than Income Taxes, Current Accrued liabilities Accrued liabilities Accrued Liabilities, Current ACCRUED LIABILITIES [Abstract] Professional fees Income taxes Accrued Income Taxes, Current Amortization of Cash Flow Hedge [Member] Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Foreign Currency Translation Adjustments [Member] Accumulated Foreign Currency Adjustment Attributable to Noncontrolling Interest [Member] Accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Foreign Currency Translation Adjustments [Member] Accumulated Other Comprehensive Income (Loss) [Table] Amortization of Cash Flows Hedge [Member] Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest [Member] Amortization of Cash Flows Hedge [Member] Accumulated Gain (Loss), Net, Cash Flow Hedge, Noncontrolling Interest [Member] Accumulated Other Comprehensive Income (Loss) [Line Items] Foreign Currency Translation Adjustments [Member] Accumulated Foreign Currency Adjustment Attributable to Parent [Member] AOCI Attributable to Parent [Member] Accumulated Other Comprehensive Income (Loss) [Member] AOCI Attributable to Parent [Member] Accumulated other comprehensive income (loss) CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME BY COMPONENT [Abstract] Weighted-average amortization period for intangible assets acquired during the year Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Additional paid-in capital Additional Paid-in Capital [Member] Amortization of intangible assets Amortization Adjustments to reconcile net income to net cash provided by operating activities: Adjustments for New Accounting Pronouncements [Axis] Share-based compensation expense Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Share-based compensation costs incurred Allowance for Doubtful Accounts [Member] Accounts receivable, allowance Amortization of intangible assets Amortization of supply agreement Antidilutive Securities [Axis] Total potentially dilutive shares excluded (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities, Name [Domain] ASSETS Assets [Abstract] Total assets Total assets Assets Total current assets Assets, Current Current assets: Balance Sheet Location [Domain] Balance Sheet Location [Domain] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Buildings and Improvements [Member] Building and Building Improvements [Member] Buildings and Improvements [Member] Business Combinations Business Combinations Policy [Policy Text Block] Acquired assets recognized and measured at fair value Property under capital leases included in property, plant and equipment [Abstract] Accrual for property, plant and equipment purchased during year Machinery and equipment Capital leased assets, net Capital Leases, Balance Sheet, Assets by Major Class, Net Accumulated amortization Carrying Value [Member] Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Net increase (decrease) in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents at beginning of year Cash and cash equivalents Cash and cash equivalents at end of year Class of Treasury Stock [Table] Variable Interest Entity, Classification [Domain] DNP [Member] Co-venturer [Member] COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] COMMITMENTS AND CONTINGENCIES [Abstract] Commitments and contingencies Common Stock [Member] Common stock, shares authorized (in shares) Common stock, par value (in dollars per share) Common stock, shares issued (in shares) Common stock, shares outstanding (in shares) Common stock, $0.01 par value, 150,000 shares authorized, 69,700 shares issued and 67,142 outstanding at October 31, 2018, and 68,666 shares issued and outstanding at October 29, 2017 Common Stock, Value, Issued EMPLOYEE RETIREMENT PLANS [Abstract] Less: comprehensive income attributable to noncontrolling interests Comprehensive income attributable to Photronics, Inc. shareholders Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Software and Other [Member] CONCENTRATIONS OF CREDIT RISK Concentration Risk Disclosure [Text Block] Concentration Risk Type [Domain] Concentration Risk Benchmark [Axis] Concentration Risk Type [Axis] Concentration Risk Benchmark [Domain] Customer's percentage of net accounts receivable Percent of net sales accounted for by significant customer Concentration Risk [Line Items] Concentration Risk [Table] Carrying Amount [Member] Consolidation Variable Interest Entities Noncontrolling Interests Consolidation, Subsidiaries or Other Investments, Consolidated Entities, Policy [Policy Text Block] Construction in Progress [Member] Contract with Customer, Asset and Liability [Abstract] Contract with Customer, Asset and Liability [Abstract] Contract asset Convertible Notes [Member] Convertible debt Convertible senior notes Cost of goods sold Cost of goods sold Cost of Goods and Services Sold Credit Facility [Axis] Credit Facility [Domain] Credit Concentration Risk [Member] State Foreign Current [Abstract] Federal Customer Relationships [Member] Customer Lists [Member] Customer Concentration Risk [Member] LONG-TERM DEBT [Abstract] Term of loan agreement Debt Instrument, Term Conversion of debt to common stock (in shares) Debt Conversion, Converted Instrument, Shares Issued Conversion price per share (in dollars per share) Conversion of debt to common stock Conversion of debt to common stock Debt Conversion, Converted Instrument, Amount Frequency of periodic payment Debt Instrument, Frequency of Periodic Payment Schedule of Long-term Debt Instruments [Table] Debt Instrument [Axis] Face amount of debt Number of shares each note is convertible to (in shares) Debt Instrument, Convertible, Number of Equity Instruments Debt Instrument [Line Items] Periodic payments Debt Instrument, Periodic Payment, Principal Interest rate percentage Effective interest rate Debt Instrument, Interest Rate, Effective Percentage Maturity date of debt Debt Instrument, Name [Domain] Amount of reasonably possible decrease in uncertain tax positions Decrease in Unrecognized Tax Benefits is Reasonably Possible Net deferred income tax assets Deferred Income Tax Assets, Net Deferred income tax assets [Abstract] Federal Deferred Federal Income Tax Expense (Benefit) Foreign Deferred Foreign Income Tax Expense (Benefit) Deferred income taxes Unearned revenue Deferred Revenue Deferred [Abstract] Deferred income taxes liabilities Deferred Tax Liabilities, Gross State Deferred State and Local Income Tax Expense (Benefit) Reported as [Abstract] Deferred income taxes Deferred income tax assets Net deferred income tax assets [Abstract] Deferred tax assets Deferred Tax Assets, Gross Deferred tax assets net of valuation allowance Deferred Tax Assets, Net of Valuation Allowance Other Deferred Tax Assets, Other Net operating losses Operating Loss Carryforward [Abstract] Deferred Tax Assets, Operating Loss Carryforwards, Components [Abstract] Share-based compensation Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost Reserves not currently deductible Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Reserves Alternative minimum tax credits Tax credit carryforwards Other Deferred Tax Liabilities, Other Valuation allowances Deferred Tax Assets, Valuation Allowance Deferred income tax liabilities [Abstract] Deferred income taxes Deferred income tax liabilities Deferred Tax Liabilities, Net, Noncurrent Undistributed earnings of foreign subsidiaries Deferred Tax Liabilities, Undistributed Foreign Earnings Property, plant and equipment Deferred Tax Liabilities, Property, Plant and Equipment Maximum percentage of employees' contributions that Company will match Defined Contribution Plan, Employer Matching Contribution, Percent of Match Percentage of salary that can be contributed by the employee Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent Maximum percentage of employees' gross pay that Company will match Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay Company's contribution to defined contribution retirement plans Defined Contribution Plan, Cost Depreciation and amortization of property, plant and equipment Depreciation, Depletion and Amortization Derivative Instruments and Hedging Activities RECENT ACCOUNTING PRONOUNCEMENTS Description of New Accounting Pronouncements Not yet Adopted [Text Block] Difference between Revenue Guidance in Effect before and after Topic 606 [Member] Effect of dilutive securities [Abstract] SHARE-BASED COMPENSATION [Abstract] SHARE-BASED COMPENSATION Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Federal [Member] Calculation of basic and diluted earnings per share [Abstract] Earnings Per Share, Basic and Diluted [Abstract] EARNINGS PER SHARE Earnings Per Share [Text Block] Basic (in dollars per share) Basic earnings per share (in dollars per share) Earnings Per Share Diluted (in dollars per share) Diluted earnings per share (in dollars per share) Earnings Per Share, Diluted Earnings per share: EARNINGS PER SHARE [Abstract] Earnings per share [Abstract] Effects of exchange rate changes on cash and cash equivalents U.S. statutory rate Compensation related expenses Employee-related Liabilities, Current Period for recognition of compensation cost not yet recognized Employee Stock Option [Member] Stock Options [Member] Unrecognized compensation cost related to unvested option awards Income tax benefits realized from stock option exercises Compensation cost not yet recognized related to share based payment awards other than options Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options Employee Stock Purchase Plan [Member] Share-based compensation cost capitalized Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount Photronics Interest [Member] Equity Component [Domain] Revenue Equity Method Investment, Summarized Financial Information, Revenue JOINT VENTURE, TECHNOLOGY LICENSE AND OTHER AGREEMENTS WITH MICRON TECHNOLOGY, INC. [Abstract] Net income Equity Method Investment, Summarized Financial Information, Net Income (Loss) Summarized financial information of MP Mask [Abstract] Equity Method Investment, Summarized Financial Information [Abstract] Summarized Financial Information of Equity Method Investment Equity Method Investments [Table Text Block] Gross profit Equity Method Investment, Summarized Financial Information, Gross Profit (Loss) Gain on sale of equity method investment JOINT VENTURE, TECHNOLOGY LICENSE AND OTHER AGREEMENTS WITH MICRON TECHNOLOGY, INC. Equity Method Investments and Joint Ventures Disclosure [Text Block] Distributions from joint venture Equity, Class of Treasury Stock [Line Items] Investments in Joint Ventures Fair Value [Member] Fair Value Financial Instruments Fair Value Measurement, Policy [Policy Text Block] FAIR VALUE MEASUREMENTS [Abstract] Measurement Basis [Axis] Measurement Basis [Axis] Fair Value, Assets and Liability [Abstract] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract] FAIR VALUE MEASUREMENTS Fair Value Disclosures [Text Block] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, by Balance Sheet Grouping [Table] Fair Value Measurement [Domain] Financial Service, Other [Member] Fair and carrying values of the Company's convertible senior notes [Abstract] Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] 2020 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2023 Finite-Lived Intangible Assets, Amortization Expense, Year Five Net Amount Finite-Lived Intangible Assets, Net Gross Amount 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Three Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets by Major Class [Axis] Estimated useful lives Finite-Lived Intangible Asset, Useful Life Intangible Assets [Abstract] Finite-Lived Intangible Assets, Gross [Abstract] 2022 Finite-Lived Intangible Assets, Amortization Expense, Year Four Intangible assets, net [Abstract] Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Intangible asset amortization over the next five years [Abstract] 2019 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months Fiscal Year Foreign [Member] Foreign currency transaction gain (loss) Foreign Currency Translation [Abstract] Foreign Currency Translation Furniture, Fixtures and Office Equipment [Member] Furniture, Fixtures and Office Equipment [Member] Gain on sale of assets Gain (Loss) on Disposition of Assets Gains on sales of investments Gain on sale of investments Gain on sale of investment INTANGIBLE ASSETS [Abstract] Gross profit Gross profit Impairment of Long-Lived Assets Income Tax Authority, Name [Domain] INCOME TAXES [Abstract] Income Tax Authority, Name [Axis] Foreign income tax expense (benefit) Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability Income Tax Authority [Axis] Income before income tax provision Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest United States Income Tax Authority [Domain] Foreign Income (Loss) from Continuing Operations before Income Taxes, Foreign Consolidated Statements of Income [Abstract] Dollar effect of income tax holiday Income Tax Holiday, Aggregate Dollar Amount Income tax provision Income Tax Expense, Total Income Tax Expense (Benefit) Income Tax Holiday [Table] Income tax provision reconciliation [Abstract] Effective Income Tax Rate Reconciliation, Amount [Abstract] Income tax provision [Abstract] INCOME TAXES Income Tax Disclosure [Text Block] Income Tax Holiday [Line Items] Income Tax Holiday [Line Items] Tax on foreign subsidiary earnings Changes in valuation allowances Per share effect of income tax holiday (in dollars per share) Income Tax Holiday, Income Tax Benefits Per Share Employee stock option Other, net Foreign tax rate differentials U.S. federal income tax at statutory rate Income tax holiday termination date Income Taxes Income taxes paid Distributions from foreign subsidiaries Interest and Penalties Related to Uncertain Tax Positions Tax credits Effective Income Tax Rate Reconciliation, Tax Credit, Amount Income tax holiday Effective Income Tax Rate Reconciliation, Tax Holiday, Amount Uncertain tax positions, including reserves, settlements and resolutions Income Tax Uncertainties [Abstract] Other current assets Increase (Decrease) in Other Current Assets Accounts receivable Increase (Decrease) in Accounts Receivable Accounts payable, accrued liabilities, and other Inventories Increase (Decrease) in Inventories Changes in assets, liabilities, and other: Share-based payment awards (in shares) Convertible notes (in shares) Initial Application Period Cumulative Effect Transition [Axis] Initial Application Period Cumulative Effect Transition [Domain] Intangible Assets INTANGIBLE ASSETS Intangible Assets Disclosure [Text Block] Intangible assets, net Interest expense Interest and Debt Expense Interest expense on convertible notes, net of tax Interest payments Finished goods Raw materials Inventories Inventory Inventory, Net Work in process Inventories [Abstract] Inventories Additional investment in joint venture Long-term Debt, Type [Domain] Long-term Debt, Type [Axis] Land [Member] Leasehold Improvements [Member] OPERATING LEASES [Abstract] LIABILITIES AND EQUITY Liabilities and Equity [Abstract] Total liabilities Liabilities Total liabilities Total liabilities and equity Liabilities and Equity Current liabilities: Total current liabilities Liabilities, Current Technology License Agreement [Member] Current borrowing capacity Amount outstanding under credit facility Maximum borrowing capacity Available borrowing capacity Line of Credit Facility, Remaining Borrowing Capacity Long-term debt and capital lease obligations Long-term Debt and Capital Lease Obligations, Including Current Maturities Long-term debt [Abstract] Long-term Debt and Capital Lease Obligations, Including Current Maturities [Abstract] Long-term debt Long-term debt and capital lease obligations non current Current portion of long-term debt Less: current portion LONG-TERM DEBT Long-term Debt [Text Block] Machinery and Equipment [Member] Machinery and Equipment [Member] Noncontrolling interests Dividends to noncontrolling interests Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders SUBSIDIARY DIVIDEND Noncontrolling Interest [Table] Noncontrolling Interest [Line Items] Repurchase of common stock by subsidiary Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests Ownership percentage of noncontrolling interests Movement in Valuation Allowance and Qualifying Accounts [Roll Forward] Cash flows from financing activities: Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Earnings used for diluted earnings per share Net Income (Loss) Attributable to Parent, Diluted Net cash (used in) provided by investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from investing activities: Cash flows from operating activities: Net income attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Net income attributable to Photronics, Inc. shareholders Net income attributable to Photronics, Inc. shareholders Recent Accounting Pronouncements New Accounting Pronouncements or Change in Accounting Principle [Line Items] RECENT ACCOUNTING PRONOUNCEMENTS [Abstract] New Accounting Pronouncements or Change in Accounting Principle [Table] Equipment acquired in exchange for product Noncash or Part Noncash Acquisition, Fixed Assets Acquired Other income (expense): Non-Controlling Interests [Member] Noncontrolling Interest [Member] Contribution from noncontrolling interest Noncontrolling Interest, Increase from Subsidiary Equity Issuance SUBSIDIARY DIVIDEND [Abstract] Noncontrolling Interests [Abstract] 2019 Total future minimum payments due Operating Leases, Future Minimum Payments Due Future minimum lease payments under non-cancelable operating leases [Abstract] Rent expense under operating leases Operating Leases, Rent Expense, Net Operating income Operating Income (Loss) Operating expenses: Total operating expenses Operating Expenses Expiration periods OPERATING LEASES Lessee, Operating Lease, Disclosure [Table Text Block] Operating Loss Carryforwards [Line Items] Operating loss carryforwards amount 2022 Operating Leases, Future Minimum Payments, Due in Four Years Thereafter 2021 Operating Leases, Future Minimum Payments, Due in Three Years 2023 Operating Leases, Future Minimum Payments, Due in Five Years 2020 Operating Leases, Future Minimum Payments, Due in Two Years Operating Loss Carryforwards [Table] PDMCX JOINT VENTURE [Abstract] Other comprehensive income before reclassifications Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Amortization of cash flow hedge Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax Accrued Liabilities Foreign currency translation adjustments Net other comprehensive (loss) income Other comprehensive income Other Comprehensive Income (Loss), Net of Tax Other assets Other current assets Other Assets, Current Other comprehensive (loss) income, net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] GAINS ON SALE OF INVESTMENTS [Abstract] CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME BY COMPONENT Other Comprehensive Income, Noncontrolling Interest [Text Block] Other comprehensive income, tax GAINS ON SALE OF INVESTMENTS Other liabilities Interest income and other income (expense) Recorded in Other Liabilities [Member] Other Liabilities [Member] Less: other comprehensive income attributable to noncontrolling interests Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest Other Purchase of treasury stock Payments for Repurchase of Common Stock Other Payments for (Proceeds from) Other Investing Activities Purchases of intangible assets Payments to Acquire Intangible Assets Dividend paid to noncontrolling interest Dividend paid to noncontrolling interest Acquisition of business Payments to Acquire Businesses, Gross Purchases of property, plant and equipment Payments to Acquire Property, Plant, and Equipment Return of capital to noncontrolling interests Payments to Noncontrolling Interests EMPLOYEE RETIREMENT PLANS Pension and Other Postretirement Benefits Disclosure [Text Block] Portion at Fair Value Measurement [Member] Preferred stock, par value (in dollars per share) Preferred stock, shares authorized (in shares) Preferred stock, shares issued (in shares) Preferred stock, $0.01 par value, 2,000 shares authorized, none issued and outstanding Preferred stock, shares outstanding (in shares) Other Proceeds from (Payments for) Other Financing Activities Cash received for refunds of income taxes Contribution from noncontrolling interest Proceeds from line of credit Proceeds from Lines of Credit Proceeds from sale of equity method investment Proceeds from Sale of Equity Method Investments Proceeds from sales of investments Proceeds from Sale of Investment Projects Proceeds from share-based arrangements Cash received from options exercises Net income Net income Property, Plant and Equipment, Type [Axis] Useful life of long-lived assets Estimated useful lives Property, Plant and Equipment [Line Items] PROPERTY, PLANT AND EQUIPMENT Property, Plant and Equipment Disclosure [Text Block] PROPERTY, PLANT AND EQUIPMENT [Abstract] Property, Plant and Equipment [Abstract] Property, plant and equipment, gross Property, Plant and Equipment Property, Plant and Equipment [Table Text Block] Property, Plant and Equipment Property, Plant and Equipment, Type [Domain] Property, plant and equipment, net Property, plant and equipment, net Long-lived assets Property, plant and equipment [Abstract] Property, Plant and Equipment, Net, by Type [Abstract] Outstanding purchase commitments Purchase Obligation QUARTERLY RESULTS OF OPERATIONS (UNAUDITED) Quarterly Financial Information [Text Block] QUARTERLY RESULTS OF OPERATIONS (UNAUDITED) [Abstract] Accounts Receivable and Allowance for Doubtful Accounts Amounts reclassified from other accumulated comprehensive income Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Unrecognized Tax Benefits [Abstract] Purchase commitments Recorded Unconditional Purchase Obligation RELATED PARTY TRANSACTIONS [Abstract] Related Party Transaction [Line Items] Expenses incurred for goods or services provided by related party during the period Related Party Transaction, Amounts of Transaction Related Party [Domain] Related Party [Axis] RELATED PARTY TRANSACTIONS Related Party Transactions Disclosure [Text Block] Repayments of long-term debt Repayments of Debt and Capital Lease Obligations Repayments of convertible debt Federal Research and Development [Member] Research Tax Credit Carryforward [Member] Research and Development Research and development Research and development expenses Restricted Stock [Member] Retained earnings Retained Earnings [Member] Retained Earnings [Member] Revenue Recognition Revenues from External Customers and Long-Lived Assets [Line Items] Revenue Revenue Commission revenue earned under supply agreement Credit Facility [Member] Revolving Credit Facility [Member] CONCENTRATIONS OF CREDIT RISK [Abstract] Outstanding at end of period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Exercisable at end of period Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Vested and expected to vest Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Exercisable at end of period Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Contractual term Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period Expected term Percent of market price that participants pay for shares subscribed Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent Intangible Asset Amortization Over the Next Five Years Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Sales Revenue, Net [Member] Inventories Schedule of Inventory, Current [Table Text Block] Summary of Restricted Stock Awards Activity Quarterly Financial Data Income Tax Rate Reconciliation Geographic Information Assumptions Used to Calculate Weighted-Average Grant Date Fair Value of Options Calculation of Basic and Diluted Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Summary of Stock Options Activity Income Before Income Tax Provision for Domestic and Foreign Intangible Assets Schedule of Finite-Lived Intangible Assets [Table Text Block] Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits, Excluding Interest and Penalties Future Minimum Lease Payments Under Non-cancelable Operating Leases Schedule of Finite-Lived Intangible Assets [Table] Equipment Under Capital Leases Included in Property, Plant and Equipment Schedule of Capital Leased Assets [Table Text Block] Changes in Accumulated Other Comprehensive Income by Component Schedule of Investments [Table] Schedule of Investments [Line Items] Outstanding Securities Excluded from Calculation of Diluted Earnings or Loss Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Income Tax Provision Net Deferred Income Tax Assets Fair Value and Carrying Amount of Convertible Senior Notes Long-Term Debt Schedule of Long-term Debt Instruments [Table Text Block] Schedule of Related Party Transactions, by Related Party [Table] Property, Plant and Equipment [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Carrying Amounts and Exposure to Loss Related to Assets and Liabilities Schedule of Variable Interest Entities [Table] GEOGRAPHIC AND SIGNIFICANT CUSTOMER INFORMATION Segment Reporting Disclosure [Text Block] GEOGRAPHIC AND SIGNIFICANT CUSTOMER INFORMATION [Abstract] Selected Quarterly Financial Data (Unaudited) [Abstract] Selling, general and administrative Selling, General and Administrative Expense Weighted-Average Exercise Price [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Weighted-Average Fair Value at Grant Date [Abstract] Cancelled (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Award vesting period Share Repurchase Program [Axis] Share-based Compensation [Abstract] Share-based Arrangements with Employees and Nonemployees [Abstract] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Share Repurchase Program [Domain] Share-based compensation Exercised (in dollars per share) Granted (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Dividend yield Cancelled (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Vested (in dollars per share) Restricted Stock, additional disclosures [Abstract] Risk-free rate of return Expected volatility Shares [Rollforward] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Granted (in shares) Outstanding at beginning of period (in shares) Outstanding at end of period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Weighted-average inputs and risk-free rate of return ranges used to calculate the grant date fair value of options [Abstract] Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Total fair value of awards for which restrictions lapsed Granted (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Outstanding at beginning of period (in dollars per share) Outstanding at end of period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Cancelled and forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period Total intrinsic value of options exercised Exercisable at end of period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Exercisable at end of period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Outstanding at end of period (in dollars per share) Outstanding at beginning of period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Cancelled and forfeited (in dollars per share) Outstanding and exercisable option awards [Roll Forward] Weighted-average grant date fair value of options granted (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Outstanding at beginning of period (in shares) Outstanding at end of period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Outstanding at end of period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Stock Options Additional Disclosures [Abstract] Maximum number of shares of common stock that may be issued (in shares) Date and terms of plan modification Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification, Description and Terms Vested and expected to vest (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Stock Options Accounting Policy Share-Based Compensation Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Vested and expected to vest (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Vested and expected to vest Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Equity Award [Domain] Balance (in shares) Balance (in shares) Shares, Outstanding SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] Product Warranty State [Member] State and Local Jurisdiction [Member] Consolidated Balance Sheets [Abstract] Consolidated Statements of Comprehensive Income [Abstract] Statement [Line Items] Statement [Table] Consolidated Statements of Cash Flows [Abstract] Equity Components [Axis] Consolidated Statements of Equity [Abstract] Share based Payment Awards [Member] Stock Compensation Plan [Member] Stock repurchased authorized amount Exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Restricted stock awards vesting and expense (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Sales of common stock through employee stock option and purchase plan (in shares) Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures Stock repurchase program - expiration date Stock Repurchase Program Expiration Date Restricted stock awards vesting and expense Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Sales of common stock through employee stock option and purchase plan Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures Total equity Balance Balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Equity: Total Photronics, Inc. shareholders' equity Ending Balance Beginning Balance Stockholders' Equity Attributable to Parent Date of loan agreement Subsequent Event Type [Domain] Subsequent Event Type [Axis] Subsequent Event [Member] Operating Loss Carryforwards Summary of Operating Loss Carryforwards [Table Text Block] Tax Credit Carryforwards Summary of Tax Credit Carryforwards [Table Text Block] Supplemental disclosure of non-cash information: Tax credit carryforward amount Tax Credit Carryforward, Amount Tax Credit Carryforward [Axis] Tax Credit Carryforward [Axis] Tax Credit Carryforward, Name [Domain] Expiration period Tax Credit Carryforward, Expiration Date SHARE REPURCHASE PROGRAM Purchase of treasury stock (in shares) Treasury Stock, Shares, Acquired SHARE REPURCHASE PROGRAM [Abstract] Purchase of treasury stock Treasury Stock, Value, Acquired, Cost Method Treasury Stock [Member] Treasury Stock [Member] Treasury stock, shares (in shares) Treasury stock repurchased - shares (in shares) Treasury Stock, Common, Shares Treasury stock repurchased - average price per share (in dollars per share) Treasury Stock Acquired, Average Cost Per Share Treasury stock repurchased - amount Treasury stock, 2,558 shares at October 31, 2018 Type of Adoption [Domain] Unrecognized tax benefits that would impact effective tax rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate Settlements Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities Additions for tax positions in prior years Reductions for tax positions in prior years Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Lapses of statutes of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Interest and penalties accrued related to uncertain tax positions Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued Additions based on current year tax positions Balance at beginning of year Balance at end of year Unrecognized Tax Benefits Unremitted Earnings in Foreign Investment Estimates and Assumptions Balance at Beginning of Year Balance at End of Year SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount Deductions SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction Valuation allowance change Valuation Allowance [Abstract] Valuation Allowances and Reserves Type [Axis] Charged to costs and expenses Valuation Allowances and Reserves [Domain] Consolidation liabilities, recourse Carrying amounts of assets and liabilities along with exposure to loss related to assets and liabilities [Abstract] Primary Beneficiary [Member] Non-current liabilities Maximum loss exposure, amount Operating loss Operating loss Initial consolidation, gain (loss) Total assets Variable Interest Entity, Consolidated, Carrying Amount, Assets Net assets Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net Financial or other support, amount Current assets Current liabilities Variable Interest Entities [Axis] Not Primary Beneficiary [Member] Non-current assets Ownership percentage Total liabilities Variable Interest Entity, Consolidated, Carrying Amount, Liabilities Variable Interest Entity [Line Items] PDMCX JOINT VENTURE Variable Interest Entity Disclosure [Text Block] Methodology use for determining whether enterprise is primary beneficiary Variable Interest Entity, Methodology for Determining Whether Entity is Primary Beneficiary Basic (in shares) Weighted-average common shares used for basic earnings per share (in shares) Potentially dilutive common shares (in shares) Weighted Average Number Diluted Shares Outstanding Adjustment Diluted (in shares) Weighted-average common shares used for diluted earnings per share (in shares) Effect of dilutive securities [Abstract] Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract] Weighted-average number of common shares outstanding: Weighted-average common shares computations [Abstract] Consolidated Entities [Axis] Consolidated Entities [Domain] Europe [Member] Customer [Axis] Maximum [Member] Minimum [Member] Customer [Domain] Ownership [Domain] Ownership [Axis] Products and Services [Domain] Product and Service [Domain] Products and Services [Axis] Product and Service [Axis] Range [Domain] Range [Axis] Schedule II-Valuation and Qualifying Accounts SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] Geographical [Domain] Geographical [Axis] Valuation and Qualifying Accounts Disclosure [Table] Schedule II-Valuation and Qualifying Accounts [Abstract] Valuation and Qualifying Accounts Disclosure [Line Items] China [Member] China [Member] Korea [Member] Korea [Member] Taiwan [Member] Taiwan [Member] United States [Member] A borrowing agreement between two parties for working capital loan. Working Capital Loan Agreement [Member] Working Capital Loan Agreement [Member] Written promise to pay a note which can be exchanged for a specified quantity of securities (typically common stock), at the option of the issuer or the holder. Convertible senior notes due on April 2016 [Member] 3.25% Convertible Senior Notes due in April 2016 [Member] A borrowing agreement between two parties for commitment of loan. Project Loan Agreement [Member] Project Loan Agreement [Member] A borrowing recorded for a lease meeting the criteria for capitalization. A lease is defined as an agreement conveying the right to use property, plant, or equipment (land or depreciable assets) usually for a stated period of time. Capital lease obligation payable through 2018 [Member] 2.77% Capital Lease Obligation Payable through July 2018 [Member] Written promise to pay a note which can be exchanged for a specified quantity of securities (typically common stock), at the option of the issuer or the holder. Convertible Senior Notes Due On April2019 [Member] 3.25% Convertible Senior Notes due in April 2019 [Member] The member represents to amended and restated credit agreement. Amended and Restated Credit Agreement [Member] Amended and Restated Credit Agreement [Member] This line item represents the face amount of each note converted or convertible to common stock. Face Amount Of Each Note Converted Or Convertible Face amount of each note converted Amount of payment for assets acquired that was deferred for not more than one year. Payment held back on asset acquisition Payment held back on asset acquisition Intangible Asset [Abstract] Intangible Asset [Abstract] Related Party Agreement [Abstract] Related Party Agreement [Abstract] Related party who provides information consulting services. DEMA Associates, LLC [Member] DEMA Associates, LLC [Member] Refers to related party who provides information technology services. Information Technology Services Provider 1 [Member] Information Technology Services Provider Two [Member] Refers to related party who provides information technology services. Information Technology Services Provider [Member] Information Technology Services Provider One [Member] Refers to related party who supplies photomask blanks. Photomask Blank Supplier [Member] Term of agreement, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Consulting Agreement Period Consulting agreement period Represents a major customer of the Company. Major customer 1 [Member] Customer One [Member] The yearly cost of a contract for consulting services. Annual Cost of Consulting Contract Annual cost of consulting contract Net of tax amount of the appreciation (loss) for other adjustments. Other Comprehensive Income (Loss), Other Adjustments, Net of Tax Other Amount of the recorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services related to building and equipment. Purchase Commitments Related to Building and Equipment Purchase commitments related to building and equipment Represents a other customer of the Company. Other Customer [Member] Customer Two [Member] Customer Account [Abstract] Customer Account [Abstract] Income taxes, additional disclosures [Abstract] Amount of change in valuation allowance due to change in AMT credits. Valuation Allowance Change AMT Credits Valuation allowance change - AMT credits Amount of change in valuation allowance due to the adoption of ASU 2016-09. Valuation Allowance Change Due To Adoption Of ASU2016-09 Valuation allowance change - adoption of ASU 2016-09 Amount of change in valuation allowance due to changes in the deferred tax liability. Valuation Allowance Change Due To Change In Deferred Tax Liability Valuation allowance change - change in deferred tax liability Refers to foreign jurisdictions. Foreign Jurisdictions [Member] Foreign Jurisdictions [Member] Amount of change in valuation allowance due to the impact of other factors. Valuation Allowance Change Impact Of Other Factors Valuation allowance change - impact of other factors Tax credit carryforwards relating to alternate minimum tax. Alternate Minimum Tax Credit Carryforward [Member] Federal Alternate Minimum [Member] Amount of change in valuation allowance due to corporate tax rate reduction. Valuation Allowance Change Due To Corporate Tax Rate Reduction Valuation allowance change - corporate tax rate reduction Amount of change in valuation allowance due to credit utilization. Valuation Allowance Change Credit Utilization Valuation allowance change - Credit Utilization Tax Credit Carryforward [Abstract] Amount of change in valuation allowance due to NOL utilization. Valuation Allowance Change NOL Utilization Valuation allowance change - NOL Utilization Stock options activity [Abstract] The cumulative number of shares that have been issued since the inception of the Company's employee stock purchase plan. Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Cumulative Shares Issued Total shares issued since inception (in shares) Share based Compensation Arrangement by Share based Payment Award, Options, Aggregate Intrinsic Value [Abstract] Aggregate Intrinsic Value [Abstract] Share based Compensation Arrangement by Share based Payment Award Options Weighted Average Remaining Contractual Term [Abstract] Weighted-Average Remaining Contractual Life [Abstract] The number as of the balance sheet date of outstanding restricted stock awards that are expected to vest. Share based Compensation Arrangement by Share based Payment Award, Equity Instruments Other than Options, Expected to Vest Expected to vest (in shares) The weighted-average fair value at grant date of restricted stock that is expected to vest. Share based Compensation Arrangement by Share based Payment Award, Equity Instruments Other Than Options, Expected to Vest, Weighted Average Grant Date Fair Value Expected to vest (in dollars per share) Represents return of capital to noncontrolling interests. Return of capital to noncontrolling interests Return of capital to noncontrolling interests Date when authorized share repurchase program commenced, in CCYY-MM-DD format. Stock Repurchase Program Commencement Date Stock repurchase program - commencement date The July 2018 Announced Program. July 2018 Announced Program [Member] The October 2018 Announced Program. October 2018 Announced Program [Member] Disclosure of information about income taxes. Income Tax Disclosure [Table] Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Income Tax Disclosure [Line Items] Amount of reasonable estimate for income tax expense from transition tax on accumulated earnings of controlled foreign corporation deemed repatriated pursuant to Tax Cuts and Jobs Act of 2017 for which accounting for tax effect is incomplete. Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Transition Tax for Accumulated Foreign Earnings, Provisional Income Tax Expense Estimated deemed repatriation transition tax Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax reform. Effective Income Tax Rate Reconciliation Tax Reform Tax reform Amount of income tax expense (benefit) from effect of Tax Cuts and Jobs Act. Tax Cuts and Jobs Act of 2017, Income Tax Expense (Benefit) Income tax (benefit) Amount of income tax expense from transition tax on accumulated earnings of controlled foreign corporation deemed repatriated pursuant to Tax Cuts and Jobs Act of 2017. Tax Cuts And Jobs Act Of2017 Transition Tax For Accumulated Foreign Earnings Income Tax Expense Deemed repatriation transition tax Components Of Income Before Income Tax Provision [Abstract] Components of income before income tax provision [Abstract] Designated tax department of the government of Taiwan. Taiwan Agency of the Ministry of Finance [Member] Taiwan Agency of the Ministry of Finance [Member] Foreign Tax [Abstract] Percentage of foreign federal statutory tax rate applicable to pretax income (loss). Effective Income Tax Rate Reconciliation, at Foreign Statutory Income Tax Rate, Percent Foreign statutory rate Amount of reasonable estimate for income tax expense (benefit) from effect of Tax Cuts and Jobs Act of 2017 for which accounting for tax effect is incomplete. Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Provisional Income Tax Expense (Benefit) Estimated provisional income tax (benefit) Effect of Tax Cuts and Jobs Act of 2017 [Abstract] Amount of change to valuation allowance for remeasurement of deferred tax asset from change in tax rate pursuant to Tax Cuts and Jobs Act of 2017. Tax Cuts And Jobs Act Of2017 Change In Tax Rate Deferred Tax Asset Valuation Allowance Change in tax rate, deferred tax asset, actual valuation allowance change Amount of reasonable estimate for valuation allowance for remeasurement of deferred tax asset from change in tax rate pursuant to Tax Cuts and Jobs Act of 2017 for which accounting for tax effect is incomplete. Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Change in tax rate, deferred tax asset, valuation allowance Change in tax rate, deferred tax asset, valuation allowance Amount of reasonable estimate for income tax expense for remeasurement of deferred tax asset from change in tax rate pursuant to Tax Cuts and Jobs Act of 2017 for which accounting for tax effect is incomplete. Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Change in Tax Rate, Deferred Tax Asset, Provisional Income Tax Expense Change in tax rate, deferred tax asset, provisional income tax expense Refers to term of tax year holidays. Term of tax year holidays Amount of income tax expense resulting from remeasurement of deferred tax asset from change in tax rate pursuant to Tax Cuts and Jobs Act of 2017. Tax Cuts And Jobs Act Of2017 Change In Tax Rate Deferred Tax Asset Income Tax Expense Change in tax rate, deferred tax asset, actual income tax expense Document and Entity Information [Abstract] Changes to accumulated other comprehensive income attributable to non-controlling interest resulting from other. Accumulated Other Comprehensive Income Attributable to Noncontrolling Interest Other [Member] Other [Member] Changes to accumulated comprehensive income resulting from other. Accumulated Other Comprehensive Income Other [Member] Other [Member] Changes to accumulated other comprehensive income including portion attributable to non-controlling interest resulting from other. Accumulated Other Comprehensive Income Including Portion Attributable to Noncontrolling Interest Other [Member] Other [Member] Antidilutive Securities [Abstract] Represents one of the geographical areas where entity's activities take place. All Other Asia [Member] All Other Asia [Member] Represents one of the products of the entity. Flat Panel Displays [Member] FPD [Member] Represents one of the products of the entity. Integrated Circuits [Member] IC [Member] Refers to investment in foreign entity. Investment in Foreign Entity [Member] Represents the minimum age of employees to come under retirement plan. Minimum age of employees to come under retirement plan Minimum age of employees to come under retirement plan Represents the number of months of service completed to come under retirement plans. Number of months of service completed Number of months of service completed to come under retirement plan Product Warranty [Abstract] Represents the period of warranty. Period of warranty Describes the operating facilities of the reporting entity by geographical region. Manufacturing Facilities by Geographical Region [Table] Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Manufacturing Facilities By Geographical Region [Line Items] Manufacturing Facilities by Geographical Region [Line Items] Manufacturing Facilities [Abstract] This line item represents the number of manufacturing facilities of the entity. Number of manufacturing facilities Number of manufacturing facilities The Company's IC manufacturing plant in Taiwan. Photronics DNP Mask Corporation (PDMC) [Member] PDMC [Member] Represents the majority owned subsidiary. PK Ltd [Member] Represents the number of majority owned subsidiaries. Number of majority owned subsidiaries Disclosure of accounting policy for treasury stock valuation, including method of recording repurchases (cost or par value method) and method for valuing subsequent resale. Treasury Stock [Policy Text Block] Treasury Stock Noncontrolling Interest Disclosure [Abstract] Noncontrolling Interest [Abstract] Refers to wholly owned Singapore subsidiary. Photronics Singapore Pte, Ltd [Member] Variable Interest Entity [Abstract] Amount of future support planned to be provided to variable interest entity. Variable Interest Entity Future Support To Be Provided Future support to be provided Refers to Number of consecutive months for Trigger of option to purchase, or put, their interest from, or to, other party if ownership interest fall below 20%, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Trigger Period for Option to Purchase, or Put, Their Interest from, or to, Other Party if Ownership Interest Fall Below 20 percent Trigger period for option to purchase, or put, their interest from, or to, other party if ownership interest falls below 20% Refer to initial term of agreement, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Variable Interest Entity, Initial Term of Agreement Initial term of agreement Refers to minimum number of business days for obtaining required approvals and clearance for exiting party from the agreement, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Number of Business Days for Obtaining Required Approvals and Clearance for Exiting Party Number of business days for obtaining required approvals and clearance for exiting party Consolidation of Variable Interest Entity [Abstract] Variable Interest Entity [Abstract] Refers to supply agreement term subject to mutually agreeable renewals. Supply Agreement Term Subject To Mutually Agreeable Renewals Supply agreement term subject to mutually agreeable renewals The joint venture variable interest entity. MP Mask [Member] MP Mask [Member]