Cover [Abstract] Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Three Amendment Flag City Area Code Entity Address, City or Town Entity Address, Country Current Fiscal Year End Date Document Period End Date Entity Incorporation, State or Country Code Local Phone Number Entity Address, Postal Zip Code Entity Address, State or Province Title of 12(b) Security No Trading Symbol Flag Trading Symbol Security Exchange Name 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 Tax Identification Number Entity Common Stock, Shares Outstanding Document Fiscal Year Focus Document Fiscal Period Focus Document Type Document Annual Report Document Transition Report Entity Interactive Data Current Entity File Number Entity Shell Company Entity Emerging Growth Company Entity Small Business AOCI Attributable to Noncontrolling Interest [Member] AOCI Including Portion Attributable to Noncontrolling Interest [Member] Award Type [Axis] Collaborative Arrangement and Arrangement Other than Collaborative [Domain] ASU 2016-16 [Member] ASU 2014-09 [Member] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract] ASU 2016-02 [Member] Accounting Standards Update 2016-02 [Member] Accounts payable Accounts Receivable [Member] ACCRUED LIABILITIES Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block] Accounts receivable, net of allowance of $1,334 in 2019 and $1,526 in 2018 Accounts receivable 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 Accrual for income taxes Accrued Income Taxes, Current Foreign Currency Translation Adjustments [Member] Accumulated Foreign Currency Adjustment Attributable to Noncontrolling Interest [Member] Foreign Currency Translation Adjustments [Member] Accumulated Other Comprehensive Income (Loss) [Table] Amortization of Cash Flow Hedge [Member] Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] Amortization of Cash Flows Hedge [Member] Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Noncontrolling Interest [Member] Accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Amortization of Cash Flows Hedge [Member] Accumulated Net Gain (Loss) from Cash Flow Hedges Including Portion Attributable to Noncontrolling Interest [Member] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated other comprehensive loss CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME BY COMPONENT [Abstract] Foreign Currency Translation Adjustments [Member] Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Accumulated Other Comprehensive Income (Loss) [Member] AOCI Attributable to Parent [Member] 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] Adjustments to reconcile net income to net cash provided by operating activities: Adjustments for New Accounting Pronouncements [Axis] Share-based compensation expense APIC, Share-based Payment Arrangement, Increase for Cost Recognition Share-based compensation expense incurred Allowance for Doubtful Accounts [Member] Accounts receivable, allowance Amortization of intangible assets Amortization of intangible assets Cash limit for dividends, distributions and redemption on equity Antidilutive Securities [Axis] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities, Name [Domain] Total potentially dilutive shares excluded (in shares) Total assets ASSETS Assets [Abstract] Total assets Assets Total current assets Current assets Net assets Net Assets Non-current assets Current assets: Balance Sheet Location [Domain] Balance Sheet Location [Domain] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Buildings and Improvements [Member] Buildings and Improvements [Member] Business Combinations Business Combinations Policy [Policy Text Block] Balance without Adoption of Topic 606 [Member] Accrual for property, plant and equipment purchased during year Impairment loss on contract assets Capitalized Contract Cost, Impairment Loss Carrying Value [Member] Cash and Cash Equivalents [Axis] Restricted Cash Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Cash, cash equivalents, and restricted cash at beginning of year Cash, cash equivalents, and restricted cash at end of year Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash and cash equivalents Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Net (decrease) increase in cash, cash equivalents, and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash [Member] Change in Contract with Customer, Liability [Abstract] Class of Treasury Stock [Table] Class of Stock [Domain] Commitments and contingencies COMMITMENTS AND CONTINGENCIES [Abstract] COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Common Stock [Member] Common stock, par value (in dollars per share) Common stock, shares issued (in shares) Common stock, shares authorized (in shares) Common stock, shares outstanding (in shares) Common stock, $0.01 par value, 150,000 shares authorized, 65,595 shares issued and outstanding at October 31, 2019, and 69,700 shares issued and 67,142 outstanding at October 31, 2018 Common Stock, Value, Issued EMPLOYEE RETIREMENT PLANS [Abstract] Comprehensive income attributable to Photronics, Inc. shareholders Comprehensive Income (Loss), Net of Tax, Attributable to Parent Less: comprehensive income attributable to noncontrolling interests Comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Software and Other [Member] Concentration Risk Type [Domain] Concentration Risk Benchmark [Axis] Customer's percentage of net accounts receivable Percent of net sales accounted for by significant customer Concentration Risk Benchmark [Domain] Concentration Risk [Line Items] CONCENTRATIONS OF CREDIT RISK Concentration Risk Disclosure [Text Block] Concentration Risk Type [Axis] Concentration Risk [Table] Noncontrolling Interests Consolidation, Subsidiaries or Other Investments, Consolidated Entities, Policy [Policy Text Block] Variable Interest Entities Consolidation, Variable Interest Entity, Policy [Policy Text Block] Consolidation Construction in Progress [Member] Revenue from settlement of contract liabilities Contract with Customer, Liability, Revenue Recognized Contract with Customer, Asset and Liability [Abstract] Contract with Customer, Asset and Liability [Abstract] Contract assets Contract liabilities Contract liabilities Contract asset Convertible senior notes Convertible Notes [Member] Cost of goods sold Cost of goods sold Credit Concentration Risk [Member] Cumulative effect of adoption of new accounting principle State Foreign Federal Current [Abstract] Customer Relationships [Member] Customer Lists [Member] Customer Concentration Risk [Member] Disaggregation of Revenue Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Table] Disaggregation of Revenue [Abstract] Date of first required payment Term of loan Debt Instrument, Term Basis spread on variable rate LONG-TERM DEBT [Abstract] Conversion price per share (in dollars per share) Local Financing [Member] Debt [Member] Schedule of Long-term Debt Instruments [Table] Debt Instrument [Axis] LONG-TERM DEBT Debt Disclosure [Text Block] Debt Instrument [Line Items] Debt Instrument, Name [Domain] Face amount of debt Interest rate percentage Maturity date of debt Number of shares each note is convertible to (in shares) Debt Instrument, Convertible, Number of Equity Instruments Effective interest rate Debt Instrument, Interest Rate, Effective Percentage Amount of reasonably possible decrease in uncertain tax positions Decrease in Unrecognized Tax Benefits is Reasonably Possible Deferred income taxes Deferred income tax assets Deferred income tax liabilities Deferred Income Tax Liabilities, Net Deferred income tax assets [Abstract] Federal Deferred Federal Income Tax Expense (Benefit) Deferred income taxes Foreign Deferred Foreign Income Tax Expense (Benefit) Deferred [Abstract] Deferred income taxes liabilities Deferred Tax Liabilities, Gross Deferred tax assets Deferred Tax Assets, Gross Reported as [Abstract] Net deferred income tax assets Deferred Tax Assets, Net State Deferred State and Local Income Tax Expense (Benefit) Net deferred income tax assets [Abstract] Deferred tax assets net of valuation allowance Deferred Tax Assets, Net of Valuation Allowance Net operating losses Operating Loss Carryforward [Abstract] Deferred Tax Assets, Operating Loss Carryforwards, Components [Abstract] Alternative minimum tax credits Tax credit carryforwards Other Deferred Tax Assets, Other 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 Deferred income tax liabilities [Abstract] Valuation allowances Deferred Tax Assets, Valuation Allowance Property, plant and equipment Deferred Tax Liabilities, Property, Plant and Equipment Other Deferred Tax Liabilities, Other Maximum percentage of employees' gross pay that Company will match Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay Percentage of salary that can be contributed by the employee Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent Maximum percentage of employees' contributions that Company will match Defined Contribution Plan, Employer Matching Contribution, Percent of Match 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 Adjustments [Member] Effect of dilutive securities [Abstract] SHARE-BASED COMPENSATION [Abstract] SHARE-BASED COMPENSATION Share-based Payment Arrangement [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] Diluted (in dollars per share) Diluted earnings per share (in dollars per share) Earnings Per Share, Diluted Basic (in dollars per share) Basic earnings per share (in dollars per share) Earnings Per Share Earnings per share: Earnings per share [Abstract] EARNINGS PER SHARE [Abstract] Effects of exchange rate changes on cash, cash equivalents, and restricted cash U.S. statutory rate Effective tax rate Employee Stock Purchase Plan [Member] Income tax benefits realized from stock option exercises Compensation cost not yet recognized related to share based payment awards other than options Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount Unrecognized compensation cost related to unvested option awards Period for recognition of compensation cost not yet recognized Share-based compensation cost capitalized Share-based Payment Arrangement, Amount Capitalized Compensation related expenses Employee-related Liabilities, Current Stock Options [Member] Employee Stock Option [Member] Equity Component [Domain] Investments in Joint Ventures Equity, Class of Treasury Stock [Line Items] Fair Value [Member] Fair Value Financial Instruments Fair Value Measurement, Policy [Policy Text Block] FAIR VALUE MEASUREMENTS [Abstract] Fair Value, Assets and Liability [Abstract] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract] Measurement Basis [Axis] Measurement Basis [Axis] 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 Instrument [Axis] Fair and carrying values of the Company's convertible senior notes [Abstract] Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Gross Amount Net Amount Finite-Lived Intangible Assets, Net Finite-Lived Intangible Assets, Major Class Name [Domain] Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Intangible Assets [Abstract] Finite-Lived Intangible Assets, Gross [Abstract] Intangible assets, net [Abstract] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets by Major Class [Axis] 2020 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months Intangible asset amortization over the next five years [Abstract] Estimated useful lives Finite-Lived Intangible Asset, Useful Life 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2024 Finite-Lived Intangible Assets, Amortization Expense, Year Five 2022 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2023 Finite-Lived Intangible Assets, Amortization Expense, Year Four Fiscal Year Foreign Currency Translation Foreign currency transaction (loss) gain Foreign [Member] Foreign Currency Translation [Abstract] Foreign Currency [Abstract] Furniture, Fixtures and Office Equipment [Member] Furniture, Fixtures and Office Equipment [Member] Gains on sales of investments Gain on sale of investment Gain on sale of assets Gain (Loss) on Disposition of Assets INTANGIBLE ASSETS [Abstract] Gross profit Gross profit Impairment of Long-Lived Assets Foreign income tax expense (benefit) Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability Income Tax Authority [Axis] Income Tax Authority, Name [Domain] INCOME TAXES [Abstract] Income Tax Authority, Name [Axis] Income before income tax provision Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Consolidated Statements of Income [Abstract] Income Statement [Abstract] Foreign Income (Loss) from Continuing Operations before Income Taxes, Foreign United States INCOME TAXES Income Tax Disclosure [Text Block] Income tax provision Income Tax Expense, Total Provision for taxes Income tax provision [Abstract] Income Tax Authority [Domain] U.S. federal income tax at statutory rate Foreign tax rate differentials Per share effect of income tax holiday (in dollars per share) Income Tax Holiday, Income Tax Benefits Per Share Income tax holiday termination date Changes in valuation allowances Income Tax Holiday [Table] Income tax provision reconciliation [Abstract] Effective Income Tax Rate Reconciliation, Amount [Abstract] Dollar effect of income tax holiday Income Tax Holiday, Aggregate Dollar Amount Income Tax Holiday [Line Items] Income Tax Holiday [Line Items] Employee stock option Income tax holiday Effective Income Tax Rate Reconciliation, Tax Holiday, Amount Interest and Penalties Related to Uncertain Tax Positions Income Taxes Other, net Tax on foreign subsidiary earnings Tax credits Effective Income Tax Rate Reconciliation, Tax Credit, Amount Uncertain tax positions, including reserves, settlements and resolutions Distributions from foreign subsidiaries Income Tax Uncertainties [Abstract] Income taxes paid Other current assets Increase (Decrease) in Other Current Assets Accounts payable, accrued liabilities and other Accounts payable, accrued liabilities, and other Accounts receivable Increase (Decrease) in Accounts Receivable Changes in assets, liabilities, and other: Changes in operating accounts: Inventories Increase (Decrease) in Inventories 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, net INTANGIBLE ASSETS Intangible Assets Disclosure [Text Block] Intangible Assets Interest expense Interest and Debt Expense Interest expense on convertible notes, net of tax Interest payments Finished goods Inventories Inventories Inventory Inventory Work in process Inventories [Abstract] Raw materials LIBOR [Member] London Interbank Offered Rate (LIBOR) [Member] Long-term Debt, Type [Axis] Long-term debt [Abstract] Long-term Debt, Current and Noncurrent [Abstract] Long-term Debt, Type [Domain] Land [Member] Leasehold Improvements [Member] OPERATING LEASES [Abstract] Total liabilities Liabilities [Abstract] LIABILITIES AND EQUITY Liabilities and Equity [Abstract] Total liabilities Liabilities Total liabilities and equity Liabilities and Equity Non-current liabilities Current liabilities: Total current liabilities Current liabilities 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 Maturities of Long-term Debt [Abstract] Long-term debt Long-term Debt Long-term debt Long-term debt Long-term Debt, Excluding Current Maturities 2023 2020 Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months 2022 Current portion of long-term debt Current portion of long-term debt 2021 2024 2025 Long-term Debt, Maturities, Repayments of Principal after Year Five Machinery and Equipment [Member] Machinery and Equipment [Member] SUBSIDIARY DIVIDEND Dividends to noncontrolling interest Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Noncontrolling interests Repurchase of common stock by subsidiary Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests Noncontrolling Interest [Line Items] Ownership percentage of noncontrolling interests Noncontrolling Interest [Table] Movement in Valuation Allowance and Qualifying Accounts [Roll Forward] Earnings used for diluted earnings per share Net Income (Loss) Attributable to Parent, Diluted Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from investing activities: Cash flows from operating activities: Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Net income attributable to Photronics, Inc. shareholders Net income attributable to Photronics, Inc. shareholders Cash flows from financing activities: Net income attributable to noncontrolling interests Noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest New Accounting Pronouncements or Change in Accounting Principle [Line Items] Recent Accounting Pronouncements Adjustments for New Accounting Pronouncement [Member] Adoption of New Accounting Standard [Abstract] RECENT ACCOUNTING PRONOUNCEMENTS [Abstract] New Accounting Pronouncements or Change in Accounting Principle [Table] RECENT ACCOUNTING PRONOUNCEMENTS New Accounting Pronouncements and Changes in Accounting Principles [Text Block] Equipment acquired in exchange for product Noncash or Part Noncash Acquisition, Fixed Assets Acquired Other income (expense): SUBSIDIARY DIVIDEND [Abstract] Noncontrolling Interests [Abstract] Contribution from noncontrolling interest Noncontrolling Interest, Increase from Subsidiary Equity Issuance Non-Controlling Interests [Member] Noncontrolling Interest [Member] Right-of-use leased assets Operating Lease, Right-of-Use Asset Rent expense under operating leases Operating Leases, Rent Expense, Net Total operating expenses Operating Expenses Operating income Operating Income (Loss) Operating expenses: Expiration periods Lease liabilities Operating Lease, Liability Operating Loss Carryforwards [Line Items] 2021 Operating Leases, Future Minimum Payments, Due in Two Years Future minimum lease payments under non-cancelable operating leases [Abstract] OPERATING LEASES Lessee, Operating Lease, Disclosure [Table Text Block] 2024 Operating Leases, Future Minimum Payments, Due in Five Years 2023 Operating Leases, Future Minimum Payments, Due in Four Years Operating loss carryforwards amount 2022 Operating Leases, Future Minimum Payments, Due in Three Years Total future minimum payments due Operating Leases, Future Minimum Payments Due 2020 Operating Loss Carryforwards [Table] Thereafter PDMCX JOINT VENTURE [Abstract] Customer Two [Member] Other Customer [Member] Other comprehensive income (loss) before reclassifications Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Accrued Liabilities Amortization of cash flow hedge Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax Foreign currency translation adjustments Other Current Assets [Member] Other Current Liabilities [Member] Net other comprehensive (loss) income Other comprehensive (loss) income Other Comprehensive Income (Loss), Net of Tax CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME BY COMPONENT Other Comprehensive Income, Noncontrolling Interest [Text Block] Other comprehensive income, tax Other current assets Other Assets, Current Other assets Other comprehensive (loss) income, net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Interest income and other income (expense), net Other Nonoperating Income (Expense) Other liabilities Other Liabilities, Noncurrent Recorded in Other Liabilities [Member] Other Liabilities [Member] Less: other comprehensive (loss) income attributable to noncontrolling interests Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest Other Other Payments for (Proceeds from) Other Investing Activities Purchases of treasury stock Payments for Repurchase of Common Stock Purchases of intangible assets Payments to Acquire Intangible Assets Dividends paid to noncontrolling interests 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 Acquired remaining noncontrolling interests shares EMPLOYEE RETIREMENT PLANS Pension and Other Postretirement Benefits Disclosure [Text Block] Portion at Fair Value Measurement [Member] Dividend declared, preferred stock for each share of common stock outstanding (in shares) Preferred stock, par value (in dollars per share) 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) Preferred stock, shares authorized (in shares) Other Proceeds from (Payments for) Other Financing Activities Proceeds from debt Cash received for refunds of income taxes Contribution from noncontrolling interests Proceeds from credit facility Proceeds from Lines of Credit Proceeds from sales of investments Proceeds from Sale of Investment Projects Cash received from options exercises Proceeds from share-based arrangements Product Warranty Liability [Line Items] Product Warranty Liability [Table] Net income Net income Estimated useful lives Property, Plant and Equipment, Useful Life Property, plant and equipment, gross Property, Plant and Equipment [Line Items] PROPERTY, PLANT AND EQUIPMENT Property, Plant and Equipment Disclosure [Text Block] Property, Plant and Equipment Property, Plant and Equipment [Table Text Block] PROPERTY, PLANT AND EQUIPMENT [Abstract] Property, Plant and Equipment [Abstract] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, plant and equipment, net Long-lived assets Property, plant and equipment, net Property, Plant and Equipment 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 Changes in Accumulated Other Comprehensive Income [Roll Forward] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] Amounts reclassified from other 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] Related Party [Axis] Expenses incurred for goods or services provided by related party during the period Related Party Transaction, Amounts of Transaction RELATED PARTY TRANSACTIONS Related Party Transactions Disclosure [Text Block] Related Party [Domain] Repayments of debt Repayments of debt Research and Development Federal Research and Development [Member] Research Tax Credit Carryforward [Member] Research and development Research and Development Expense Restricted cash Restricted Cash Restricted Cash [Abstract] Restricted Cash [Abstract] Restricted Stock [Member] Cash and Cash Equivalents [Domain] Retained Earnings [Member] Retained Earnings [Member] Retained earnings Revenue Revenue from Contract with Customer [Policy Text Block] REVENUE [Abstract] Revenue, Initial Application Period Cumulative Effect Transition [Line Items] Revenue, Initial Application Period Cumulative Effect Transition [Table] REVENUE Revenue from Contract with Customer [Text Block] Revenue Revenue Revenue Recognition Revenues from External Customers and Long-Lived Assets [Line Items] CONCENTRATIONS OF CREDIT RISK [Abstract] Exercisable at end of period Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Contractual term Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period Expected 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 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 Exercisable at end of period Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Outstanding at end of period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Intangible Asset Amortization Over the Next Five Years Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Sales Revenue, Net [Member] Total Support Remaining [Member] Scenario, Plan [Member] Inventories Schedule of Inventory, Current [Table Text Block] Assumptions Used to Calculate Weighted-Average Grant Date Fair Value of Options Future Minimum Lease Payments Under Non-cancelable Operating Leases Geographic Information Summary of Stock Options Activity Maturities of Long-term Debt Schedule of Maturities of Long-term Debt [Table Text Block] Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits, Excluding Interest and Penalties Quarterly Financial Data Summary of Restricted Stock Awards Activity Schedule of Finite-Lived Intangible Assets [Table] Intangible Assets Schedule of Finite-Lived Intangible Assets [Table Text Block] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Income Before Income Tax Provision for Domestic and Foreign Fair Value and Carrying Amount of Convertible Senior Notes Income Tax Provision Net Deferred Income Tax Assets Calculation of Basic and Diluted Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Income Tax Rate Reconciliation Changes in Accumulated Other Comprehensive Income by Component Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Long-Term Debt Schedule of Long-term Debt Instruments [Table Text Block] 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] Impacts of Adoption of Condensed Consolidated Balance Sheet, Condensed Consolidated Statements of Income and Cash Flows Property, Plant and Equipment [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Related Party Transactions, by Related Party [Table] Shares Repurchase Programs 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 Series A Preferred Stock [Member] Share Repurchase Program [Axis] Exercised (in dollars per share) Weighted-Average Exercise Price [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Share Repurchase Program [Domain] Granted (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Weighted-Average Fair Value at Grant Date [Abstract] Share-based compensation Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Award vesting period Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation [Abstract] Share-based Payment Arrangement, Disclosure [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 Granted (in shares) Dividend yield Cancelled (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Total fair value of awards for which restrictions lapsed Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Shares [Rollforward] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] 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 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 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 Expected volatility Vested (in dollars per share) Restricted Stock, additional disclosures [Abstract] Weighted-average inputs and risk-free rate of return ranges used to calculate the grant date fair value of options [Abstract] Maximum number of shares of common stock that may be issued (in shares) 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 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 Risk-free rate of return Outstanding and exercisable option awards [Roll Forward] Additional disclosures [Abstract] Cancelled and forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period Cancelled and forfeited (in dollars per share) 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] 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 (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 Outstanding at end of period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value 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 (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Share-Based Compensation Stock Options Accounting Policy Share-based Payment Arrangement [Policy Text Block] Balance (in shares) Beginning (in shares) Shares, Outstanding Weighted-average interest rate of short -term debt Short-term Debt, Weighted Average Interest Rate, at Point in Time Short-term debt Short-term Debt SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] Product Warranty State [Member] State and Local Jurisdiction [Member] Consolidated Balance Sheets [Abstract] Statement of Financial Position [Abstract] Class of Stock [Axis] Consolidated Statements of Comprehensive Income [Abstract] Equity Components [Axis] Statement [Line Items] Statement [Table] Consolidated Statements of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Consolidated Statements of Equity [Abstract] Stock repurchase program - expiration date Stock Repurchase Program Expiration Date Exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Sale of common stock through employee stock option and purchase plans (in shares) Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture Restricted stock awards vesting and expense (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Stock repurchased authorized amount Share based Payment Awards [Member] Share-based Payment Arrangement [Member] Sale of common stock through employee stock option and purchase plans Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture Restricted stock awards vesting and expense Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Equity: Total Photronics, Inc. shareholders' equity Ending Balance Beginning Balance Photronics, Inc. shareholders' equity Stockholders' Equity Attributable to Parent Total equity Balance Balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Equity [Abstract] Subsequent Event [Member] Subsequent Event Type [Domain] Subsequent Event Type [Axis] Tax Credit Carryforwards Summary of Tax Credit Carryforwards [Table Text Block] Operating Loss Carryforwards Summary of Operating Loss Carryforwards [Table Text Block] Supplemental disclosure of non-cash information: Over Time [Member] At a Point in Time [Member] Timing of Transfer of Good or Service [Axis] Timing of Transfer of Good or Service [Domain] Expiration period Tax Credit Carryforward, Expiration Date Tax credit carryforward amount Tax Credit Carryforward, Amount Tax Credit Carryforward, Name [Domain] Tax Credit Carryforward [Axis] Tax Credit Carryforward [Axis] Financial Instruments [Domain] Purchases of treasury stock Cost of shares repurchased Treasury Stock, Value, Acquired, Cost Method Treasury stock, 0 shares at October 31, 2019 and 2,558 shares at October 31, 2018 Treasury Stock, Common, Value Treasury stock, shares (in shares) Treasury Stock, Common, Shares Purchase of treasury stock (in shares) Repurchased common stock (in shares) Number of shares repurchased (in shares) Retirement of treasury stock Treasury Stock, Retired, Cost Method, Amount Average price paid per share (in dollars per share) Treasury Stock [Member] Treasury Stock [Member] Retirement of treasury stock (in shares) Treasury Stock, Shares, Retired Type of Adoption [Domain] Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Additions for tax positions in prior years Balance at end of year Balance at beginning of year Unrecognized Tax Benefits Settlements Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities Accrued interest and penalties related to unrecognized tax benefits Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued Unrecognized tax benefits that would impact effective tax rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate 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 Additions based on current year tax positions 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 Allowances and Reserves Type [Axis] Valuation Allowances and Reserves [Domain] Charged to costs and expenses Valuation Allowance [Abstract] Change in valuation allowance Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount Carrying amounts of assets and liabilities [Abstract] Local financing Variable Interest Entity, Consolidated, Liabilities, Current, No Recourse Consolidation liabilities, recourse Variable Rate [Domain] PDMCX JOINT VENTURE Variable Interest Entity Disclosure [Text Block] Gain (loss) on consolidation Variable Interest Entity, Initial Consolidation, Gain (Loss) Operating (loss) Variable Rate [Axis] Maximum exposure to loss Financial or other support, amount Variable Interest Entity [Line Items] Photronics Interest [Member] Photronics Interest [Member] Variable Interest Entity, Primary Beneficiary [Member] Ownership percentage DNP [Member] Potentially dilutive common shares (in shares) Weighted Average Number Diluted Shares Outstanding Adjustment Basic (in shares) Weighted-average common shares used for basic earnings per share (in shares) 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 [Domain] Consolidated Entities [Domain] Consolidated Entities [Axis] Consolidated Entities [Axis] Europe [Member] Customer [Axis] Maximum [Member] Minimum [Member] Customer [Domain] Ownership [Axis] Ownership [Domain] Products and Services [Domain] Products and Services [Axis] Statistical Measurement [Domain] Statistical Measurement [Axis] Scenario [Domain] Scenario [Domain] Schedule II-Valuation and Qualifying Accounts SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] Geographical [Domain] Scenario [Axis] Geographical [Axis] Schedule II-Valuation and Qualifying Accounts [Abstract] Valuation and Qualifying Accounts Disclosure [Line Items] Valuation and Qualifying Accounts Disclosure [Table] China [Member] China [Member] Korea [Member] Korea [Member] Taiwan [Member] Taiwan [Member] United States [Member] The cash inflow from government incentives during the period. Proceeds From Government Incentives Government incentives Variable Interest Entity [Abstract] 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 Number of consecutive months an investor's ownership can be below 20% before an option to put or purchase the investor's ownership interest may be exercised. Number of Consecutive Months Ownership Interest may Fall Below Twenty Percent For Put or Purchase Options to be Exercised Period before put or purchase option can be exercised 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 The joint venture. PDMCX [Member] Carrying Amount [Member] Amount invested and amount of additional committed investment of variable interest holders in consolidated variable interest entity. Amount Invested And Committed To Be Invested In Affiliates Subsidiaries Associates And Joint Ventures Total committed investment Intangible Asset [Abstract] Intangible Asset [Abstract] Disclosure of accounting policy for consolidation to describe the significant judgments and assumptions made in determining whether a variable interest held by the entity requires the variable interest entity to be consolidated and (or) disclose information about its involvement with the variable interest entity; the methodology used by the entity for determining whether or not it is the primary beneficiary of the variable interest entity; and the significant factors considered and judgments made in determining that the power to direct the activities that significantly impact the economic performance of the variable interest entity are shared (as defined). Consolidation, Joint Venture Variable Interest Entity, Policy [Policy Text Block] Variable Interest Entities Components Of Income Before Income Tax Provision [Abstract] Components of income before income tax provision [Abstract] 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] 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 Designated tax department of the government of Taiwan. Taiwan Agency of the Ministry of Finance [Member] Taiwan Agency of the Ministry of Finance [Member] Tax credit carryforwards relating to alternate minimum tax. Alternate Minimum Tax Credit Carryforward [Member] Federal Alternate Minimum [Member] 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 Income Tax Holiday [Abstract] Refers to term of tax year holidays. Term of tax year holidays Net of tax amount of the appreciation (loss) for other adjustments. Other Comprehensive Income (Loss), Other Adjustments, Net of Tax Other Refers to foreign jurisdictions. Foreign Jurisdictions [Member] Foreign Jurisdictions [Member] Tax Credit Carryforward [Abstract] Income taxes, additional disclosures [Abstract] 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 changes in the deferred tax liability. Valuation Allowance Change Due To Change In Deferred Tax Liability Valuation allowance change - change in deferred tax liability Amount of change in valuation allowance due to NOL utilization. Valuation Allowance Change NOL Utilization Valuation allowance change - NOL Utilization 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 change in AMT credits. Valuation Allowance Change AMT Credits Valuation allowance change - AMT credits 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 Amount of change in valuation allowance due to credit utilization. Valuation Allowance Change Credit Utilization Valuation allowance change - Credit Utilizations Rights Agreement [Abstract] 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 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 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) 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) Stock options activity [Abstract] 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) Customer Account [Abstract] Customer Account [Abstract] Represents a major customer of the Company. Major customer 1 [Member] Customer One [Member] Number of customers concentration risk in accounts receivable. Number of customers concentration risk in accounts receivable Number of customers concentration risk in accounts receivable Amount of the recorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services related to capital equipment. Purchase Commitments Related to Capital Equipment Purchase commitments related to capital equipment Commitment amount intended to be financed under a capital lease. Commitment Intended to be Financed Under Capital Lease Future capital lease Represents one of the products of the entity. Integrated Circuits [Member] IC [Member] Represents one of the products of the entity. Flat Panel Displays [Member] FPD [Member] FPD [Member] Represents one of the geographical areas where entity's activities take place. All Other Asia [Member] All Other Asia [Member] Noncontrolling Interest Disclosure [Abstract] Noncontrolling Interest [Abstract] The Company's IC manufacturing plant in Taiwan. Photronics DNP Mask Corporation (PDMC) [Member] PDMC [Member] 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] Related Party Agreement [Abstract] Related Party Agreement [Abstract] 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 Refers to related party who provides information technology services. Information Technology Services Provider [Member] Information Technology Services Provider [Member] Related party who provides information consulting services. DEMA Associates, LLC [Member] DEMA Associates, LLC [Member] Refers to related party who supplies photomask blanks. Photomask Blank Supplier [Member] The yearly cost of a contract for consulting services. Annual Cost of Consulting Contract Annual cost of consulting contract Antidilutive Securities [Abstract] Accounting Standards Updates to be Implemented [Abstract] Accounting Standards Updates to be Implemented [Abstract] 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 Matured 2019 [Member] SHARE REPURCHASE PROGRAMS [Abstract] The entire disclosure for share repurchase programs and preferred stock purchase rights. Share Repurchase Programs and Preferred Stock Purchase Rights [Text Block] SHARE REPURCHASE PROGRAMS Disclosure of accounting policy for government grants. Government Grants [Policy Text Block] Government Grants 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 The October 2018 Announced Program. October 2018 Announced Program [Member] The August 2019 announced program. August 2019 Announced Program [Member] 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] Shares Repurchase Programs and Preferred Stock Purchase Rights [Abstract] Shares Repurchase Programs and Preferred Stock Purchase Rights [Abstract] The Company's IC manufacturing plant in Xiamen, China. Photronics DNP Mask Corporation Xiamen PDMCX [Member] PDMCX [Member] Product Warranty [Abstract] Product Warranty [Abstract] Represents the period of warranty coverage of products sold. Period of warranty Product warranty period 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 Represents the number of majority owned subsidiaries with significant noncontrolling interests. Number of majority owned subsidiaries Majority owned subsidiaries with significant noncontrolling interests Represents the majority owned subsidiary. PK Ltd [Member] Revenue, Remaining Performance Obligations [Abstract] Remaining Performance Obligations [Abstract] Period in which customer order is expected to be fulfilled, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Customer orders, Expected Timing of Satisfaction, Period Customer order, expected satisfaction period The term of the product invoiced for payment settlement. Product Invoice Term Product invoice term Represents the classification of products by performance. Mainstream Flat Panel Displays [Member] Mainstream [Member] Represents the classification of products by performance. Mainstream Integrated Circuits [Member] Mainstream [Member] Represents the classification of products by performance. High-end Integrated Circuits [Member] High-end [Member] Represents the classification of products by performance. High-end Flat Panel Displays [Member] High-end [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. Project Loan [Member] Project Loans [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. Working Capital Loan [Member] Working Capital Loans [Member] Amount of restricted net assets of consolidated and unconsolidated subsidiaries annually thereafter of the most recently completed fiscal year. Amount of Restricted Net Assets for Consolidated and Unconsolidated Subsidiaries, Annually Thereafter Cash limit for dividends, distributions and redemption on equity, annually thereafter Term of the interest rate that fluctuates over time as a result of an underlying benchmark interest rate or index. Debt Instrument Term Of Variable Rate Term of variable rate Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the seventh fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Long-term Debt, Maturities, Repayments of Principal in Year Seven 2026 A lease Agreement which enables to request advance payments or other funds for equipment or enter into an equipment lease. Master Lease 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 to pay value added taxes. Working Capital Loan, VAT [Member] Working Capital Loans (value added tax component) [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] The member represents to amended and restated credit agreement. Amended and Restated Credit Agreement [Member] Amended and Restated Credit 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 Matured April2019 [Member] 3.25% Convertible Senior Notes Matured April 2019 [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 to pay fund operations. Working Capital Loan, Fund Operations [Member] Working Capital Loans, Fund Operations [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