Equity Components [Axis] Ordinary shares [Member] Additional paid-in capital [Member] Unearned compensation [Member] Accumulated other comprehensive loss [Member] Foreign currency translation adjustment [Member] Accumulated deficit [Member] Comprehensive income (loss) [Member] Noncontrolling interest [Member] Capital notes [Member] Treasury stock [Member] Plan Name [Axis] 2013 Plan [Member] Title of Individual [Axis] Chief Executive Officer [Member] Award Type [Axis] Time Vested Restricted Shares Units [Member] Subsequent Event Type [Axis] Subsequent Event [Member] RSUs [Member] Vesting [Axis] First anniversary [Member] Second anniversary [Member] Chairman of the Board of Directors [Member] Members of Board of Directors [Member] Legal Entity [Axis] TPSCo [Member] Transaction Type [Axis] Loan One repaid July 2018 [Member] Currency [Axis] JPY [Member] Loan Two repaid July 2018 [Member] Long-term Debt, Type [Axis] Term Loan 2018 [Member] JA Mitsui Leasing Capital Corporation [Member]. Loan to TJT [Member] Business Acquisition [Axis] TowerJazz Panasonic Semiconductor Co., Ltd [Member] Addititional Compensation Value [Member] Consolidated Entities [Axis] Jazz [Member] Variable Rate [Axis] Prime Rate [Member] Range [Axis] Minimum [Member] Maximum [Member] LIBOR [Member] Document and Entity Information [Abstract] Document Type Amendment Flag Document Period End Date Entity Registrant Name Entity Central Index Key Document Fiscal Year Focus Document Fiscal Period Focus Current Fiscal Year End Date Statement of Financial Position [Abstract] ASSETS CURRENT ASSETS Cash and cash equivalents Marketable securities Trade accounts receivable Inventories Other current assets Total current assets LONG-TERM INVESTMENTS PROPERTY AND EQUIPMENT, NET INTANGIBLE ASSETS, NET GOODWILL DEFERRED TAX AND OTHER LONG-TERM ASSETS, NET TOTAL ASSETS LIABILITIES AND SHAREHOLDERS' EQUITY CURRENT LIABILITIES Current maturities of loans, leases and debentures Trade accounts payable Deferred revenue and customers' advances Employee related liabilities Other current liabilities Total current liabilities LONG-TERM DEBT Debentures Other long-term debt LONG-TERM CUSTOMERS' ADVANCES EMPLOYEE RELATED LIABILITIES DEFERRED TAX LIABILITY OTHER LONG-TERM LIABILITIES TOTAL LIABILITIES THE COMPANY'S SHAREHOLDERS' EQUITY Non-controlling interest TOTAL EQUITY TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY Income Statement [Abstract] REVENUES COST OF REVENUES GROSS PROFIT OPERATING COSTS AND EXPENSES: Research and development Marketing, general and administrative TOTAL OPERATING COSTS AND EXPENSES OPERATING PROFIT FINANCING EXPENSE, NET OTHER INCOME, NET PROFIT BEFORE INCOME TAX INCOME TAX EXPENSE, NET NET PROFIT Net loss (income) attributable to non-controlling interest NET PROFIT ATTRIBUTABLE TO THE COMPANY BASIC EARNINGS PER ORDINARY SHARE: Earnings per share Weighted average number of ordinary shares outstanding DILUTED EARNINGS PER ORDINARY SHARE: Earnings per share Net profit used for diluted earnings per share Weighted average number of ordinary shares outstanding used for diluted earnings per share Statement of Comprehensive Income [Abstract] Net profit Other comprehensive income, net of tax: Foreign currency translation adjustment Change in employees plan assets and benefit obligations Unrealized gain (loss) on derivatives and marketable securities Comprehensive income Comprehensive (income) loss attributable to non-controlling interest Comprehensive income attributable to the Company Statement [Table] Statement [Line Items] BALANCE BALANCE, SHARES Changes during the period: Issuance of shares Issuance of shares, shares Exercise of options Exercise of options, shares Capital notes converted into share capital Capital notes converted into share capital, shares Employee stock-based compensation Dividend paid to Panasonic Other comprehensive income: Profit Foreign currency translation adjustments Unrealized loss on derivatives and marketable securities Comprehensive income BALANCE BALANCE, SHARES OUTSTANDING SHARES, NET OF TREASURY STOCK Statement of Cash Flows [Abstract] CASH FLOWS - OPERATING ACTIVITIES Adjustments to reconcile net profit for the period to net cash provided by operating activities: Income and expense items not involving cash flows: Depreciation and amortization Effect of indexation, translation and fair value measurement on debt Other income, net Changes in assets and liabilities: Trade accounts receivable Other current assets Inventories Trade accounts payable Deferred revenue and customers' advances Employee related liabilities and other current liabilities Long-term employee related liabilities Deferred tax, net Net cash provided by operating activities CASH FLOWS - INVESTING ACTIVITIES Investments in property and equipment, net Investments in marketable securities and other assets, net Net cash used in investing activities CASH FLOWS - FINANCING ACTIVITIES Exercise of warrants and options, net Proceeds from loans Loans repayment Principal payments on account of capital lease obligation Debentures repayment Dividend paid to Panasonic Net cash provided by (used in) financing activities EFFECT OF FOREIGN CURRENCY EXCHANGE RATE CHANGE INCREASE IN CASH AND CASH EQUIVALENTS CASH AND CASH EQUIVALENTS - BEGINNING OF PERIOD CASH AND CASH EQUIVALENTS - END OF PERIOD NON-CASH ACTIVITIES: Investments in property and equipment SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION: Cash paid during the period for interest, net Cash paid during the period for income taxes, net (a) ACQUISTION OF SUBSIDIARIES CONSOLIDATED FOR THE FIRST TIME: Working capital (excluding cash and cash equivalents) Fixed assets Intangible assets Short-term loan Long-term liabilities Total Less: Share capital Gain from acquisition, net Bargain purchase Acquisition related costs Cash from the acquisition of a subsidiaries consolidated for the first time Organization, Consolidation and Presentation of Financial Statements [Abstract] GENERAL Accounting Changes and Error Corrections [Abstract] INITIAL ADOPTION OF NEW STANDARDS RECENT DEVELOPMENTS [Abstract] RECENT DEVELOPMENTS ADDITIONAL INFORMATION - RECONCILIATION OF US GAAP TO IFRS [Abstract] ADDITIONAL INFORMATION - RECONCILIATION OF US GAAP TO IFRS Recent Developments Schedule of Assets Acquired and Liabilities Assumed Schedule of Condensed Interim Consolidated Balance Sheet in Accordance with IFRS Schedule of Condensed Interim Consolidated Statement of Operations in Accordance with IFRS Schedule of Reconciliation of Net Profit from US GAAP to IFRS Schedule of Reconciliation of Shareholders' Equity from US GAAP to IFRS Schedule of Reconciliation of Goodwill from US GAAP to IFRS Schedule of Reconciliation of Other Long-Term Assets from US GAAP to IFRS Schedule of Reconciliation of Short Term Bank Debt and Current Maturities of Loans and Debentures from US GAAP to IFRS Schedule of Reconciliation of Long-Term Debentures from US GAAP to IFRS Schedule of Reconciliation of Long-Term Employee Related Liabilities from US GAAP to IFRS Schedule of Business Acquisitions, by Acquisition [Table] Business Acquisition [Line Items] Percentage of subsidiary owned Recent Developments [Table] Recent Developments [Line Items] Outstanding principal Maximum borrowing amount Basis spread over variable interest rate Borrowing capacity Letters of credit outstanding amount Non-option equity awards granted Vesting period Percentage of vesting equity Compensation cost Interest rate Maturity term Fixed interest rate Principal payable period Repayment of Debt Condensed Interim Consolidated Balance Sheet in Accordance with IFRS Current assets, US GAAP Current assets, Adjustments Current assets, IFRS Property and equipment, net, US GAAP Property and equipment, net, Adjustments Property and equipment, net, IFRS Long-term assets, US GAAP Long-term assets, Adjustments Long-term assets, IFRS Total assets, US GAAP Total assets, Adjustments Total assets, IFRS Current liabilities, US GAAP Current liabilities, Adjustments Current liabilities, IFRS Long-term liabilities, US GAAP Long-term liabilities, Adjustments Long-term liabilities, IFRS Total liabilities, US GAAP Total liabilities, Adjustments Total liabilities, IFRS TOTAL EQUITY, US GAAP TOTAL EQUITY, Adjustments TOTAL EQUITY, IFRS Total liabilities and shareholders' equity, US GAAP Total liabilities and shareholders' equity, Adjustments Total liabilities and shareholders' equity, IFRS Condensed Interim Consolidated Statement of Operations in Accordance with IFRS OPERATING PROFIT, US GAAP OPERATING PROFIT, Adjustments OPERATING PROFIT, IFRS Financing expense, net, US GAAP Financing expense, net, Adjustments Financing expense, net, IFRS Gain from acquisition, net, US GAAP Gain from acquisition, net, Adjustments Gain from acquisition, net, IFRS Other income, net, US GAAP Other income, net, Adjustments Other income, net, IFRS Profit before income tax, US GAAP Profit before income tax, Adjustments Profit before income tax, IFRS Income tax expense, US GAAP Income tax expense, Adjustments Income tax expense, IFRS NET PROFIT, US GAAP NET PROFIT, Adjustments NET PROFIT, IFRS Net income attributable to the non-controlling interest, US GAAP Net income attributable to the non-controlling interest, Adjustments Net income attributable to the non-controlling interest, IFRS NET PROFIT ATTRIBUTABLE TO THE COMPANY, US GAAP NET PROFIT ATTRIBUTABLE TO THE COMPANY, Adjustments NET PROFIT ATTRIBUTABLE TO THE COMPANY, IFRS Reconciliation of Net Profit from US GAAP to IFRS: Net profit in accordance with US GAAP Financial Instruments Pension plans Termination Benefits Net profit in accordance with IFRS Reconciliation of Shareholders' Equity from US GAAP to IFRS: Shareholders' equity in accordance with US GAAP Financial Instruments Termination Benefits Goodwill Shareholders' equity in accordance with IFRS The amount of adjustment related to financial Instruments for reconciliation of net loss from US GAAP to IFRS. The amount of adjustment related to financial Instruments for reconciliation of shareholders' equity from US GAAP to IFRS. The amount of adjustment related to goodwill for reconciliation of shareholders' equity from US GAAP to IFRS. The amount of adjustment related to pension plans for reconciliation of net loss from US GAAP to IFRS. The amount of adjustment related to termination benefits for reconciliation of net loss from US GAAP to IFRS. The amount of adjustment related to termination benefits for reconciliation of shareholders' equity from US GAAP to IFRS. The amount of adjustment to total assets for reconciliation from US GAAP to IFRS. The amount of adjustment to long term assets for reconciliation from US GAAP to IFRS. The amount of adjustment to current assets for reconciliation from US GAAP to IFRS. The amount of adjustment to current liabilities for reconciliation from US GAAP to IFRS. Gain from acquisition, net, adjustments. The amount of adjustment to income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest for reconciliation from US GAAP to IFRS. The amount of adjustment to amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations for reconciliation from US GAAP to IFRS. The amount of adjustment to total liability and shareholders equity for reconciliation from US GAAP to IFRS. The amount of adjustment to liabilities for reconciliation from US GAAP to IFRS. The amount of adjustment to amount of Net Income (Loss) attributable to noncontrolling interest for reconciliation from US GAAP to IFRS. The amount of adjustment to portion of profit or loss for the period, net of income taxes, which is attributable to the parent for reconciliation from US GAAP to IFRS. The amount of adjustment to non current liabilities for reconciliation from US GAAP to IFRS. The amount of adjustment to other financing expense, net for reconciliation from US GAAP to IFRS. Operating profit, adjustments. Other income, net, adjustments. The amount of adjustment to consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest for reconciliation from US GAAP to IFRS. The amount of adjustment to property plant and equipment, net for reconciliation from US GAAP to IFRS. The amount of adjustment to liabilities for reconciliation from US GAAP to IFRS. Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events and derived as per International Financial Reporting Standards (IFRS). Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold or consumed after one year or beyond the normal operating cycle, if longer and derived as per International Financial Reporting Standards (IFRS). Members of Board of Directors [Member] Capital Notes [Member] Common shares outstanding, net of treasury stock. Aggregate carrying amount, as of the balance sheet date, of current assets not separately disclosed in the balance sheet and derived as per International Financial Reporting Standards (IFRS). Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer and derived as per International Financial Reporting Standards (IFRS). Document And Entity Information [Abstract] Gains (losses) on business acquisition. Gain from acquisition, net, IFRS. Represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest and derived as per International Financial Reporting Standards (IFRS). Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations and derived as per International Financial Reporting Standards (IFRS). Jazz [Member] Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests and derived as per International Financial Reporting Standards (IFRS). Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future and derived as per International Financial Reporting Standards (IFRS). Amount of Net Income (Loss) attributable to noncontrolling interest and derived as per International Financial Reporting Standards (IFRS). The portion of profit or loss for the period, net of income taxes, which is attributable to the parent and derived as per International Financial Reporting Standards (IFRS). Amount, after deduction of tax, noncontrolling interests, dividends and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders. Amount of obligation due after one year or beyond the normal operating cycle, if longer and derived as per International Financial Reporting Standards (IFRS). Amount of the cost of borrowed funds accounted for as other financing expense and derived as per International Financial Reporting Standards (IFRS). Operating profit, IFRS. Other income, net, IFRS. The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest and derived as per International Financial Reporting Standards (IFRS). Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale and derived as per International Financial Reporting Standards (IFRS). The entire disclosure for recent developments in the entity. Recent Developments [LineItems] Schedule of recent developments in the entity. Condensed interim consolidated balance sheet in accordance with IFRS [Roll Forward] Reconciliation of net profit from US GAAP to IFRS [Roll Forward] Condensed interim consolidated statement of operations in accordance with IFRS [Roll Forward] Reconciliation of shareholders' equity from US GAAP to IFRS [Roll Forward] The entire disclosure for the reconciliation of US GAAP to IFRS. Tabular disclosure of the balance sheet in accordance with IFRS. Tabular disclosure of the profit and loss in accordance with IFRS. Tabular disclosure of the reconciliation of goodwill from US GAAP to IFRS. Tabular disclosure of the reconciliation of long term debentures from US GAAP to IFRS. Tabular disclosure of the reconciliation of net loss from US GAAP to IFRS. Tabular disclosure of the reconciliation of other assets from US GAAP to IFRS. Tabular disclosure of the reconciliation of other long term liabilities from US GAAP to IFRS. Tabular disclosure of the reconciliation of shareholders' equity from US GAAP to IFRS. Tabular disclosure of the reconciliation of short-term bank debt and current maturities of loans and debentures from US GAAP to IFRS. Series G Debentures [Member] Short-term bank debt and convertible notes payable, current. Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent and derived as per International Financial Reporting Standards ("IFRS"). Time Vested [Member] Time Vested Restricted Stock Units [Member] TowerJazz Texas ("TJT") [Member] 2010 Convertible Debentures Series F [Member] 2010 Notes [Member] 2013 Share Incentive Plan [Member] Percentage of vesting equity. TPSCo [Member] Loan One [Member] Loan Two [Member] Term Loan 2018 [Member] Principal payable period. JA Mitsui Leasing Capital Corporation [Member]. Loan to TJT [Member] TowerJazz Panasonic Semiconductor Co., Ltd [Member] The cash outflow to settle a debentures during the year. The amount of cash paid for interest during the period. Value of working capital, excluding cash and cash equivalents, acquired in a noncash or part noncash transaction. Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders'' equity. The amount net identifiable assets acquired and liabilities. Addititional Compensation Value [Member] Liability, Pension and Other Postretirement and Postemployment Benefits, Noncurrent Gross Profit Operating Expenses Income Tax Expense (Benefit) Net Income (Loss) Attributable to Noncontrolling Interest Earnings Per Share, Diluted Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Shares, Outstanding Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Gains Losses On Business Acquisition Foreign Currency Transaction Gain (Loss), before Tax Other Noncash Income (Expense) Increase (Decrease) in Accounts Receivable Increase (Decrease) in Prepaid Expense and Other Assets Increase (Decrease) in Inventories Increase (Decrease) in Accounts Payable Increase (Decrease) in Deferred Revenue Increase (Decrease) in Deferred Income Taxes Net Cash Provided by (Used in) Operating Activities Payments to Acquire Property, Plant, and Equipment Payments to Acquire Marketable Securities Net Cash Provided by (Used in) Investing Activities Repayments of Bank Debt Capital Lease Obligations Incurred Schedule of Reconciliation of Net Loss from US Gaap to Ifrs [Table Text Block} Payments of Ordinary Dividends, Noncontrolling Interest Net Cash Provided by (Used in) Financing Activities Cash and Cash Equivalents, Period Increase (Decrease) Noncash or Part Noncash Acquisition, Other Liabilities Assumed Noncash or Part Noncash Acquisition, Net Nonmonetary Assets Acquired (Liabilities Assumed) Capital Notes [Member] Adjustments to Income Tax Expense Benefit for Reconciliation from US GAAP to IFRS Income Tax Expense Benefit in Accordance with IFRS Adjustments To Net Income (Loss) Attributable to Noncontrolling Interest for Reconciliation fromUS GAAP to IFRS Net Income (Loss) Attributable to Noncontrolling Interest in Accordance with Ifrs Adjustments Related to Financial Instruments for Reconciliation of Shareholders Equity from US Gaap to Ifrs Adjustments Related to Termination Benefits for Reconciliation of Shareholders Equity from US Gaap to Ifrs Adjustments Related to Goodwill for Reconciliation of Shareholders Equity from US Gaap to Ifrs