Amendment Flag Current Fiscal Year End Date Document Period End Date Entity [Domain] Entity [Domain] 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 Legal Entity [Axis] Legal Entity [Axis] Document Type Entity Shell Company Entity Emerging Growth Company Entity Ex Transition Period Entity Small Business AOCI Including Portion Attributable to Noncontrolling Interest [Member] AOCI Attributable to Noncontrolling Interest [Member] Award Type [Axis] ASU 2016-16 [Member] ASU 2016-16 [Member] Accounting Standards Update 2016-01 [Member] ASU 2014-09 [Member] Accounts payable Accounts receivable, net of allowance of $1,360 in 2019 and $1,526 in 2018 Accounts receivable Accrued liabilities Accrued Liabilities, Current Accrual for income taxes Amortization of Cash Flows Hedge [Member] Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Noncontrolling Interest [Member] Amortization of Cash Flows Hedge [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 Net Gain (Loss) from Cash Flow Hedges Including Portion Attributable to Noncontrolling Interest [Member] Accumulated Other Comprehensive Income (Loss) [Line Items] Foreign Currency Translation Adjustments [Member] Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Accumulated Other Comprehensive Income [Member] Accumulated Other Comprehensive Income (Loss) [Member] Accumulated other comprehensive loss CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME BY COMPONENT [Abstract] 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 Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Share-based compensation expense incurred Accounts receivable, allowance 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 Net assets Net Assets Current assets Total current assets Current assets: Non-current assets Balance Sheet Location [Domain] Balance Sheet Location [Axis] Buildings and Improvements [Member] Building and Building Improvements [Member] BASIS OF FINANCIAL STATEMENT PRESENTATION Business Description and Basis of Presentation [Text Block] Balance without Adoption of Topic 606 [Member] Accrual for property, plant and equipment purchased during the period Impairment loss on contract assets Capitalized Contract Cost, Impairment Loss Carrying Value [Member] Cash and cash equivalents Cash, cash equivalents, and restricted cash at end of period Cash, cash equivalents, and restricted cash at beginning of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents 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 Change in Contract with Customer, Liability [Abstract] Class of Treasury Stock [Table] Variable Interest Entity, Classification [Domain] 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, 69,984 shares issued and 66,289 outstanding at April 28, 2019 and 69,700 shares issued and 67,142 outstanding at October 31, 2018 Common Stock, Value, Issued Less: comprehensive income attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest 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 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 asset Convertible senior notes Cost of goods sold Depreciation and amortization expense Credit Facility [Axis] Credit Facility [Domain] Cumulative effect of adoption of new accounting principle Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Table] Disaggregation of Revenue [Abstract] Disaggregation of Revenue LONG-TERM DEBT [Abstract] Date of first required payment Term of loan Debt Instrument, Term Conversion price per share (in dollars per share) Basis spread on variable rate 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] 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 Deferred income taxes Deferred Tax Assets, Net of Valuation Allowance, Noncurrent Deferred income taxes Depreciation and amortization RECENT ACCOUNTING PRONOUNCEMENTS Description of New Accounting Pronouncements Not yet Adopted [Text Block] Adjustments [Member] Effect of dilutive securities [Abstract] SHARE-BASED COMPENSATION [Abstract] SHARE-BASED COMPENSATION Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Subsidiary dividend payable Dividends Payable 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) Diluted (in dollars per share) Diluted earnings per share (in dollars per share) Earnings Per Share, Diluted Earnings per share: EARNINGS PER SHARE [Abstract] Effect of exchange rate changes on cash, cash equivalents, and restricted cash U.S. statutory rate Effective tax rate Period for recognition of compensation cost not yet recognized Stock Options [Member] Employee Stock Option [Member] Unrecognized compensation cost related to unvested option awards Income tax benefits realized from stock option exercises Compensation cost not yet recognized related to unvested restricted stock awards Share-based compensation cost capitalized Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount Equity Component [Domain] 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] 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] Fair and carrying values of the Company's convertible senior notes [Abstract] Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Furniture, Fixtures and Office Equipment [Member] Furniture and Fixtures [Member] Gross profit Gross profit 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 before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Condensed Consolidated Statements of Income (unaudited) [Abstract] Income Statement [Abstract] Dollar effect of income tax holiday Income tax provision Provision for taxes Income Tax Holiday [Table] Effective Income and Statutory Tax Rate [Abstract] INCOME TAXES Income Tax Disclosure [Text Block] Income Tax Holiday [Line Items] Income Tax Holiday [Line Items] Per share effect of income tax holiday (in dollars per share) Income tax holiday termination date Income Taxes 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 and liabilities: Changes in operating accounts: 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 Interest expense Interest expense on convertible notes, net of tax Finished goods INVENTORIES Inventory Disclosure [Text Block] INVENTORIES [Abstract] Raw materials Inventories Inventory Inventory Work in process Inventories Long-term Debt, Type [Domain] Long-term debt [Abstract] Long-term Debt, Current and Noncurrent [Abstract] Long-term Debt, Type [Axis] Land [Member] Leasehold Improvements [Member] Short Term Debt Due in February 2019 [Member] Letter of Credit [Member] LIABILITIES AND EQUITY Liabilities and Equity [Abstract] Total liabilities Liabilities Total liabilities Total liabilities and equity Liabilities and Equity Liabilities [Abstract] Non-current liabilities Current liabilities: Current liabilities Total current liabilities Current borrowing capacity Amount outstanding under credit facility Maximum borrowing capacity Available borrowing capacity Line of Credit Facility, Remaining Borrowing Capacity Long term debt Long-term Debt LONG-TERM DEBT Long-term Debt [Text Block] Current portion of long-term debt Current portion Long-term debt Long-term debt noncurrent Long-term Debt, Excluding Current Maturities Machinery and Equipment [Member] Machinery and Equipment [Member] Noncontrolling interests Dividends to noncontrolling interests Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Repurchase of common stock by subsidiary Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests Cash flows from financing activities: Net cash (used in) provided by 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 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 Noncontrolling interests Net cash (used in) 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 Income attributable to Photronics, Inc. shareholders Recent Accounting Pronouncements New Accounting Pronouncements or Change in Accounting Principle [Line Items] RECENT ACCOUNTING PRONOUNCEMENTS [Abstract] Adoption of New Accounting Standard [Abstract] Adjustments for New Accounting Pronouncement [Member] 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 Operating income Operating Income (Loss) Operating expenses: Total operating expenses Operating Expenses PDMCX JOINT VENTURE [Abstract] Other Current Assets [Member] Other Current Liabilities [Member] Other comprehensive (loss) 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 Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Net other comprehensive (loss) income Other comprehensive (loss) income Other Comprehensive Income (Loss), Net of Tax Other assets Other Assets, Noncurrent Other current assets Other Assets, Current Other comprehensive income (loss), net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME BY COMPONENT Other comprehensive income (loss), tax Other comprehensive income, tax Other liabilities Interest income and other income (expense), net Less: other comprehensive income (loss) attributable to noncontrolling interests Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest Purchase of treasury stock Payments for Repurchase of Common Stock Other Payments for (Proceeds from) Other Investing Activities Dividend paid to noncontrolling interest Payments of Ordinary Dividends, Noncontrolling Interest Purchases of property, plant and equipment Payments to Acquire Property, Plant, and Equipment 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) Prepaid expenses Proceeds from debt Other Proceeds from (Payments for) Other Financing Activities Contribution from noncontrolling interest Proceeds from Noncontrolling Interests Proceeds from credit facility Proceeds from share-based arrangements Cash received from option exercises Net income Net income Property, Plant and Equipment, Type [Axis] 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, gross Property, Plant and Equipment Property, Plant and Equipment, Type [Domain] Property, plant and equipment, net Property, plant and equipment, net Property, plant and equipment [Abstract] Property, Plant and Equipment, Net, by Type [Abstract] Outstanding commitments for capital expenditure Amounts reclassified from accumulated other comprehensive income Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Changes in Accumulated Other Comprehensive Income [Roll Forward] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] Unrecognized Tax Benefits [Abstract] Repayments of long-term debt Repayments of Debt and Capital Lease Obligations Repayments of debt Research and development Restricted Stock [Member] Retained earnings Retained Earnings [Member] Retained Earnings [Member] Revenue Revenue Revenue, Initial Application Period Cumulative Effect Transition [Table] REVENUE [Abstract] Revenue, Initial Application Period Cumulative Effect Transition [Line Items] Revenue Revenue from Contract with Customer [Policy Text Block] REVENUE Revenue from Contract with Customer [Text Block] Remaining Performance Obligations Weighted average remaining contractual life, Outstanding at end of period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Weighted average remaining contractual life, Exercisable at end of period Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Aggregate intrinsic value, 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 Plan [Member] Scenario, Unspecified [Domain] Inventories Schedule of Inventory, Current [Table Text Block] Assumptions Used to Calculate Weighted-Average Grant Date Fair Value of Options Calculation of Basic and Diluted Earnings Per Share Information on Outstanding and Exercisable Option Share-based Compensation, Stock Options, Activity [Table Text Block] Changes in Accumulated Other Comprehensive Income by Component Schedule of Accumulated Other Comprehensive Income (Loss) [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] Fair Value and Carrying Amount of Convertible Senior Notes Long-Term Debt Schedule of Long-term Debt Instruments [Table Text Block] Property, Plant and Equipment [Table] Impacts of Adoption of Condensed Consolidated Balance Sheet, Condensed Consolidated Statements of Income and Cash Flows Volume of Shares Repurchased are Subject to Market Conditions 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] Selling, general and administrative Weighted Average Exercise Price [Abstract] 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] Share options granted (in shares) Share Repurchase Program [Domain] Dividend yield Restricted Stock [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract] Risk free rate of return Volatility Restricted stock awards granted (in shares) Number of shares of restricted stock outstanding (in shares) Weighted-average inputs and risk-free rate of return ranges used to calculate the grant date fair value of options [Abstract] Weighted average grant date fair value of restricted stock awards (in dollars per share) Weighted average exercise price, Exercisable at end of period (in dollars per share) Exercisable at end of period (in shares) Weighted average exercise price, Outstanding at end of period (in dollars per share) Outstanding and exercisable option awards [Roll Forward] Weighted-average grant date fair value of options granted (in dollars per share) Outstanding at end of period (in shares) Aggregate intrinsic value, Outstanding at end of period Additional disclosures [Abstract] Stock Options [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 Share-based Compensation Accounting Equity Award [Domain] Beginning (in shares) Balance (in shares) Shares, Outstanding Scenario [Axis] Condensed Consolidated Balance Sheets (unaudited) [Abstract] Statement of Financial Position [Abstract] Condensed Consolidated Statements of Comprehensive Income (unaudited) [Abstract] Statement [Line Items] Statement [Table] Condensed Consolidated Statements of Cash Flows (unaudited) [Abstract] Statement of Cash Flows [Abstract] Equity Components [Axis] Condensed Consolidated Statements of Equity (unaudited) [Abstract] Share-Based Payment Awards [Member] Stock Compensation Plan [Member] Stock repurchased authorized amount 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 plans (in shares) Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures Stock repurchase program - termination 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 plans 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 Total Photronics, Inc. shareholders' equity Beginning Balance Ending Balance Stockholders' Equity Attributable to Parent Equity [Abstract] Subsequent Event Type [Domain] Subsequent Event Type [Axis] Subsequent Event [Member] Supplemental disclosure information: At a Point in Time [Member] Over Time [Member] Timing of Transfer of Good or Service [Axis] Timing of Transfer of Good or Service [Domain] Tax credit carryforward, amount Tax Credit Carryforward [Axis] Tax Credit Carryforward [Axis] Tax Credit Carryforward, Name [Domain] SHARE REPURCHASE PROGRAM SHARE REPURCHASE PROGRAM [Abstract] Purchase of treasury stock Treasury Stock, Value, Acquired, Cost Method Treasury Stock [Member] Treasury Stock [Member] Number of shares repurchased (in shares) Treasury stock, shares (in shares) Average price paid per share (in dollars per share) Treasury Stock Acquired, Average Cost Per Share Cost of shares repurchased Treasury stock, 3,695 shares at April 28, 2019 and 2,558 shares at October 31, 2018 Treasury Stock, Common, Value Type of Adoption [Domain] Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued [Abstract] Accrued interest and penalties related to unrecognized tax benefits Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued Unrecognized tax benefits Change in valuation allowance Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount Consolidation liabilities, recourse Carrying amounts of assets and liabilities [Abstract] Photronics Interest [Member] Maximum exposure to loss Operating (loss) Gain (loss) on consolidation Variable Interest Entity, Initial Consolidation, Gain (Loss) Financial or other support, amount Variable Interest Entities [Axis] DNP [Member] Ownership percentage Variable Interest Entity [Line Items] PDMCX JOINT VENTURE Variable Interest Entity Disclosure [Text Block] Methodology use for determining whether enterprise 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] Europe [Member] Maximum [Member] Minimum [Member] Product and Service [Domain] Product and Service [Axis] Range [Domain] Range [Axis] Geographical [Domain] Geographical [Axis] China [Member] Korea [Member] Korea [Member] Taiwan [Member] Taiwan [Member] United States [Member] Stock options activity [Abstract] Share based Compensation Arrangement by Share based Payment Award Options Weighted Average Remaining Contractual Term [Abstract] Weighted-Average Remaining Contractual Life [Abstract] Share based Compensation Arrangement by Share based Payment Award, Options, Aggregate Intrinsic Value [Abstract] Aggregate Intrinsic Value [Abstract] Income Tax Holiday [Abstract] Significant Change in Unrecognized Tax Benefits Reasonably Possible [Abstract] Refers to term of tax year holidays. Term of tax year holidays Term of tax year holidays 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] Tax Credit Carryforward [Abstract] Refers to credit carryforwards refund period. Credit Carryforwards Refund Period Credit carryforwards refund period 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] Effect of Tax Cuts and Jobs Act of 2017 [Abstract] Amount of reasonable estimate for valuation allowance 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, Valuation Allowance Estimated deemed repatriation transition tax, valuation allowance Percentage of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations, attributable to increase (decrease) from transition tax on accumulated earnings in cash of controlled foreign corporation deemed repatriated pursuant to Tax Cuts and Jobs Act of 2017. Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act of 2017, Transition Tax on Accumulated Foreign Earnings in Cash, Percent Toll charge rate on accumulated earnings in cash Amount of reasonable estimate for income tax expense (benefit) for remeasurement of deferred tax 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, Provisional Income Tax Expense (Benefit) Provisional income tax expense (benefit) 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 Disclosure of accounting policy election for sales and similar taxes. Sales and Similar Taxes [Policy Text Block] Sales and Similar Taxes Disclosure of accounting policy for contract costs. Contract Costs [Policy Text Block] Contract Costs Disclosure of accounting policy for contract assets, contract liabilities and accounts receivable. Contract Assets, Contract Liabilities and Accounts Receivable [Policy Text Block] Contract Assets, Contract Liabilities and Accounts Receivable 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] 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 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] Changes to accumulated comprehensive income resulting from other. Accumulated Other Comprehensive Income Other [Member] Other [Member] Document and Entity Information [Abstract] Receivables of government incentives applied to offset the cost of capital expenditures during the period. Government Incentives Receivable For Capital Expenditures Accrual for property, plant and equipment purchased with funds receivable from government incentives The cash inflow from government incentives during the period. Proceeds From Government Incentives Government incentives 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 Revenue, Remaining Performance Obligations [Abstract] Remaining Performance Obligations [Abstract] Represents the period of warranty coverage of products sold. Period of warranty Product warranty period Product Warranty [Abstract] Product Warranty [Abstract] The October 2018 Announced Program. October 2018 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 cash limit for dividends, distributions and redemption on equity. Cash limit for dividends, distributions and redemption on equity 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 Due December 2025 [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] 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 due in November 2021 [Member] Working Capital Loan due January 2022 [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] 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 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 Loan [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 Due December 2022 [Member] Project Loan Due December 2022 [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 one of the products of the entity. Integrated Circuits [Member] IC [Member] Represents the classification of products by performance. Mainstream Flat Panel Displays [Member] Mainstream [Member] Represents the classification of products by performance. High-end Flat Panel Displays [Member] High-end [Member] Represents one of the products of the entity. Flat Panel Displays [Member] FPD [Member] Represents one of the geographical areas where entity's activities take place. All Other Asia [Member] Other [Member] Antidilutive Securities [Abstract] Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders. Dividend Payable to Non Controlling Shareholder of Subsidiary Subsidiary dividend payable This line item represents the number of manufacturing facilities of the entity. Number of manufacturing facilities Number of manufacturing facilities Manufacturing Facilities [Abstract] Manufacturing Facilities [Abstract] 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] Describes the operating facilities of the reporting entity by geographical region. Manufacturing Facilities by Geographical Region [Table] Net of tax amount of the appreciation (loss) for other adjustments. Other Comprehensive Income (Loss), Other Adjustments, Net of Tax Other 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 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 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 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 Variable Interest Entity [Abstract] BASIS OF FINANCIAL STATEMENT PRESENTATION [Abstract] Percentage of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations, attributable to increase (decrease) from transition tax on accumulated earnings not in cash of controlled foreign corporation deemed repatriated pursuant to Tax Cuts and Jobs Act of 2017. Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act of 2017, Transition Tax on Accumulated Foreign Earnings Not in Cash, Percent Toll charge rate on accumulated earnings not in cash 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 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 The joint venture. PDMCX [Member] Carrying Amount [Member]