Rental Expense [Abstract] Rental Expense [Abstract] Long-term Purchase Commitment [Table] Long-term Purchase Commitment [Table] Long-term Purchase Commitment by Category of Item Purchased [Axis] Long-term Purchase Commitment by Category of Item Purchased [Axis] Long-term Purchase Commitment, Category of Item Purchased [Domain] Long-term Purchase Commitment, Category of Item Purchased [Domain] Long-term Purchase Commitment [Line Items] Long-term Purchase Commitment [Line Items] Rental expense Operating Leases, Rent Expense Segment Information [Abstract] Segment Information [Abstract] Revenues by Region Schedule of Revenues from External Customers and Long-Lived Assets [Table] Statement, Geographical [Axis] Statement, Geographical [Axis] Segment, Geographical [Domain] United States and Canada (Member) Segment, Geographical, Groups of Countries, Group One [Member] Europe (Member) Segment, Geographical, Groups of Countries, Group Two [Member] Other Countries [Member] OtherCountries [Member] The combined total of all countries outside of the USA, Canada, and Europe, for the purpose of reporting revenue by region. [Member] Revenues from External Customers [Line Items] Revenues from External Customers and Long-Lived Assets [Line Items] Total revenues Revenue, Net Income Taxes [Abstract] Income Taxes [Abstract] Income Tax Contingency [Table] Income Tax Contingency [Table] Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Award Type and Plan Name [Axis] Share-based Compensation Arrangements by Share-based Payment Award, Award Type and Plan Name [Domain] Employee Stock Option [Member] Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] Internal Revenue Service (IRS) [Member] Internal Revenue Service (IRS) [Member] Domestic Country [Member] Domestic Country [Member] Foreign Country [Member] Foreign Country [Member] State and Local Jurisdiction [Member] State and Local Jurisdiction [Member] Income Tax Contingency [Line Items] Income Tax Contingency [Line Items] Unrecognized tax benefits Unrecognized Tax Benefits Gross increase to positions in prior years Unrecognized Tax Benefits, Increases Resulting from Prior Period Tax Positions Gross decrease to positions in prior years Unrecognized Tax Benefits, Decreases Resulting from Prior Period Tax Positions Gross increase to current period tax positions Unrecognized Tax Benefits, Increases Resulting from Current Period Tax Positions Audit settlements Unrecognized Tax Benefits, Decreases Resulting from Settlements with Taxing Authorities Decrease related to lapsing of statute of limitations Unrecognized Tax Benefits, Reductions Resulting from Lapse of Applicable Statute of Limitations Effect of change in exchange rates Effect of Change in Exchange Rates Unrecognized Tax Benefit Effect of Change in Exchange Rates Unrecognized Tax Benefit The amount of unrecognized tax benefits that, if recognized, would affect our effective tax rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate Net interest and penalties expense Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense Accrued interest Unrecognized Tax Benefits, Interest on Income Taxes Accrued Accrued penalties Unrecognized Tax Benefits, Income Tax Penalties Accrued Unrecognized tax benefits Defined Benefit Pension Plans [Abstract] Defined Benefit Pension Plans [Abstract] Schedule of Defined Benefit Plans Disclosures [Table] Schedule of Defined Benefit Plans Disclosures [Table] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum [Member] Minimum [Member] Maximum [Member] Maximum [Member] Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Axis] Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Axis] Defined Benefit Plans and Other Postretirement Benefit Plans [Domain] Defined Benefit Plans and Other Postretirement Benefit Plans [Domain] Shorter duration euro denominated defined benefit plans [Member] Shorter duration euro denominated defined benefit plans [Member] Shorter duration euro denominated defined benefit plans [Member] Longer duration euro denominated defined benefit plans [Member] [Member] Longer duration euro denominated defined benefit plans [Member] [Member] Longer duration euro denominated defined benefit plans [Member] [Member] Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Percentage of benefit plans denominated in euro Percentage of benefit plans denominated in euro Percentage of benefit plans denominated in euro Euro-denominated AA-rated Corporate Bond Euro-denominated AA-rated Corporate Bond Euro-denominated AA-rated Corporate Bond amounts outstanding used in the calculation of the hypothetical yield curve to determine the discount rate on the company's euro denominated defined benefit plans. Percent of the highest and lowest yielding bonds within specific maturity groups. Percent of the highest and lowest yielding bonds within specific maturity groups. Percent of the highest and lowest yielding bonds within specific maturity groups. Discount rate Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate Bond Maturity Bond Maturity Bond maturity of euro-denominated AA-rated corporate bonds. Defined Contribution, Bonus, and Profit Sharing [Abstract] Defined Contribution, Bonus, and Profit Sharing [Abstract] Schedule of Deferred Compensation Arrangement with Individual, Postretirement Benefits [Table] Schedule of Deferred Compensation Arrangement with Individual, Postretirement Benefits [Table] Deferred Compensation Arrangement with Individual, Postretirement Benefits, by Title of Individual [Axis] Deferred Compensation Arrangement with Individual, Postretirement Benefits, by Title of Individual [Axis] Title of Individual with Relationship to Entity [Domain] Title of Individual with Relationship to Entity [Domain] Deferred Compensation Arrangement with Individual, Postretirement Benefits, by Type of Deferred Compensation [Axis] Deferred Compensation Arrangement with Individual, Postretirement Benefits, by Type of Deferred Compensation [Axis] Type of Deferred Compensation [Domain] Type of Deferred Compensation [Domain] Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items] Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items] Defined contribution plans expense Defined Contribution Plan, Cost Recognized Reconciliation of Assets from Segment to Consolidated [Table] Reconciliation of Assets from Segment to Consolidated [Table] Statement, Business Segments [Axis] Statement, Business Segments [Axis] Segment [Domain] Segment [Domain] Itron North America [Member] Itron North America [Member] Itron North America [Member] Itron International [Member] Itron International [Member] Itron International [Member] Intersegment Elimination [Member] Intersegment Elimination [Member] Segment Reporting, Asset Reconciling Item [Line Items] Segment Reporting, Asset Reconciling Item [Line Items] Total assets Assets Derivative Financial Instruments [Abstract] Derivative Financial Instruments [Abstract] Effect of Cash Flow Derivatives on the Balance Sheet and Income Statement, Before Tax [Table] Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table] Derivative, by Nature [Axis] Derivative, Name [Domain] Euro Term Loan Interest Rate Swap [Member] Euro Term Loan Interest Rate Swap [Member] Derivative Instruments, Gain (Loss) by Income Statement Location [Axis] Income Statement and Other Comprehensive Income (Loss) Location [Domain] Interest Expense [Member] Statement [Line Items] Statement [Line Items] Interest Rate Swap Contracts [Abstract] Interest Rate Derivatives [Abstract] Amount of Gain (Loss) Recognized in OCI on Derivative (Effective Portion) Unrealized Gain (Loss) on Interest Rate Cash Flow Hedges, Pretax, Accumulated Other Comprehensive Income (Loss) Gain (Loss) Reclassified from Accumulated OCI into Income (Effective Portion) Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, before Tax Gain (Loss) Recognized in Income on Derivative (Ineffective Portion) Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net General Discussion of Derivative Instruments and Hedging Activities [Abstract] Derivative Financial Instruments [Text Block] Derivative Instruments and Hedging Activities Disclosure [Text Block] Goodwill Excluding Non Goodwill Intangibles [Abstract] Goodwill, excluding non-goodwill intangible assets [Abstract] Goodwill Disclosure [Text Block] Goodwill Disclosure [Text Block] Credit Facility Additional Information [Abstract] Credit Facility Additional Information [Abstract] Schedule of Long-term Debt Instruments [Table] Interest Rate, Type [Axis] Interest Rate, Type [Axis] Interest Rate, Type [Domain] Interest Rate, Type [Domain] LIBOR interest rate [Member] LIBOR interest rate [Member] U.S. Prime rate [Member] U.S. Prime rate [Member] Debt Instrument [Axis] Debt Instrument [Axis] Subordinated Borrowing, Name [Domain] Subordinated Borrowing, Name [Domain] 2007 Senior Secured Credit Facility [Member] 2007 Senior Secured Credit Facility [Member] 2011 Senior Secured Credit Facility [Member] 2011 Senior Secured Credit Facility [Member] U.S. Domestic Subsidiaries [Member] U.S. Domestic Subsidiaries [Member] First-Tier Foreign Subsidiaries [Member] First-Tier Foreign Subsidiaries [Member] Scheduled Quarterly Repayments through June 2013 [Domain] Scheduled Quarterly Repayments September 2011 through June 2013 [Domain] Scheduled Quarterly Repayments September 2013 through June 2014 [Domain] Scheduled Quarterly Repayments September 2013 through June 2014 [Domain] Scheduled Quarterly Repayments September 2014 through June 2016 [Domain] Scheduled Quarterly Repayments September 2014 through June 2016 [Domain] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Term Loans [Domain] Long-term Debt, Type [Domain] Credit Facilities [Member] Credit facility consisting of a U.S. dollar term loan facility and a multicurrency revolving credit facility. EUR Denominated Term Loan [Member] EUR Denominated Term Loan [Member] USD Denominated Term Loan [Member] USD Denominated Term Loan [Member] Voting Stock [Member] Voting Stock [Member] Non-voting Stock [Member] Non-voting Stock [Member] Common Stock [Member] Line of Credit Facility [Axis] Line Of Credit Facility, Borrower [Domain] Line Of Credit Facility, Borrower [Domain] Line of Credit [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Debt Instrument, Face Amount Debt Instrument, Face Amount Line of credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Pledge of Capital Stock Pledge of Capital Stock The percentage of the pledged capital stock as security for the payment and performance in full of all obligations to a creditor. The pledge effectively gives the creditor a lien on the security interest of the pledged capital stock. Repayments of Secured Debt Repayments of Secured Debt One-half of one percent over the weighted average of rates One-half of one percent over the weighted average of rates One-half of one percent over the weighted average of rates on overnight federal funds as published by the Federal Reserve Bank of New York used to determine the base rate on the senior secured credit facility. One percent over the weighted average of rates on overnight federal funds One percent over the weighted average of rates on overnight federal funds One percent over the weighted average of rates on overnight federal fundsas published by the Federal Reserve Bank of New York used to determine the base rate on the senior secured credit facility. Applicable Interest Rate Margin Applicable Interest Rate Margin Applicable interest rate margin subject to the company's consolidated leverage ratio. Debt Instrument, Interest Rate at Period End Debt Instrument, Interest Rate at Period End Debt Instrument, Basis Spread on Variable Rate Debt Instrument, Basis Spread on Variable Rate Multicurrency revolving line of credit Line of Credit Facility, Amount Outstanding Letters of Credit Outstanding, Amount Letters of Credit Outstanding, Amount Line of credit facility, remaining borrowing capacity Line of Credit Facility, Remaining Borrowing Capacity Write-off of unamortized prepaid debt fees Write off of Deferred Debt Issuance Cost Unamortized prepaid debt fees Unamortized prepaid debt fees Prepaid debt fees represent the capitalized direct costs incurred related to the issuance of debt. These costs are amortized to interest expense over the lives of the respective borrowings using the effective interest method. When debt is repaid early, or first becomes convertible the related portion of unamortized prepaid debt fees is written-off and included in interest expense. Accounting Policies [Abstract] Basis of Consolidation [Policy Text Block] Consolidation, Policy [Policy Text Block] Cash and Cash Equivalents [Policy Text Block] Cash and Cash Equivalents, Policy [Policy Text Block] Accounts Receivable and Allowance for Doubtful Accounts [Policy Text Block] Receivables, Policy [Policy Text Block] Inventories [Policy Text Block] Inventory, Policy [Policy Text Block] Derivative Instruments [Policy Text Block] Derivatives, Policy [Policy Text Block] Property, Plant, and Equipment [Policy Text Block] Property, Plant and Equipment, Policy [Policy Text Block] Prepaid Debt Fees [Policy Text Block] Prepaid Debt Fees [Policy Text Block] Prepaid debt fees represent the capitalized direct costs incurred related to the issuance of debt and are recorded as noncurrent assets. These costs are amortized to interest expense over the lives of the respective borrowings, including contingent maturity or call features, using the effective interest method, or straight-line method when associated with a revolving credit facility. When debt is repaid early, the related portion of unamortized prepaid debt fees is written-off and included in interest expense. [Policy Text Block] Business Combinations [Policy Text Block] Business Combinations Policy [Policy Text Block] Goodwill and Intangible Assets [Policy Text Block] Goodwill and Intangible Assets, Policy [Policy Text Block] Contingencies [Policy Text Block] Commitments and Contingencies, Policy [Policy Text Block] Warranty [Policy Text Block] Warranty [Policy Text Block] Disclosure of accounting policy for all warranty types including the methodology for measuring the liability. [Policy Text Block] Costs Associated with Exit or Disposal Activities or Restructurings, Policy Costs Associated with Exit or Disposal Activities or Restructurings, Policy Defined Benefit Pension Plans [Policy Text Block] Pension and Other Postretirement Plans, Pensions, Policy [Policy Text Block] Share Repurchase Policy [Policy Text Block] Share Repurchase Policy [Policy Text Block] Describes the company's accounting policy related to share repurchases under a program authorized by its Board of Directors. Share repurchases are made in the open market or in privately negotiated transactions and in accordance with applicable securities and state laws.[Policy Text Block] Revenue Recognition [Policy Text Block] Revenue Recognition, Policy [Policy Text Block] Product and Software Development Costs [Policy Text Block] Research, Development, and Computer Software, Policy [Policy Text Block] Stock-based Compensation [Policy Text Block] Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Loss on Extinguishment of Debt, Net [Policy Text Block] Loss on Extinguishment of Debt, Net [Policy Text Block] Describes an entity's accounting policy for recording gains and losses on extinguishment of debt, which occurs upon partial or full redemption of the entity's borrowings. A gain or loss is recognized for the difference between the cash paid and the net carrying amount of the debt redeemed. Included in the net carrying amount is any unamortized premium or discount from the original issuance of the debt. [Policy Text Block] Income Tax, Policy [Policy Text Block] Income Tax, Policy [Policy Text Block] Foreign Exchange [Policy Text Block] Foreign Currency Transactions and Translations Policy [Policy Text Block] Fair Value Measurement [Policy Text Block] Fair Value of Financial Instruments, Policy [Policy Text Block] Use of Estimates [Policy Text Block] Use of Estimates, Policy [Policy Text Block] Inventory, Net [Abstract] Inventories [Table] Schedule of Inventory, Current [Table] Schedule of Inventory, Current [Table] Inventories [Axis] Schedule of Inventory, Current [Axis] Schedule of Inventory, Current [Axis] Inventories [Domain] Schedule of Inventory, Current [Member] Schedule of Inventory, Current [Domain] Inventories [Member] Inventories [Line Items] Schedule of Inventory, Current [Line Items] Schedule of Inventory, Current [Line Items] Materials Inventory, Raw Materials Work in process Inventory, Work in Process Finished goods Inventory, Finished Goods Total inventories Inventory, Net Earnings Per Share and Capital Structure [Abstract] Earnings Per Share and Capital Structure [Abstract] Computation of Basic and Diluted Earnings Per Share [Table] Schedule of Basic and Diluted Earnings Per Share [Table] Computation of Basic and Diluted Earnings Per Share [Table] Class of Stock [Axis] Class of Stock [Domain] Net income (loss) available to common shareholders Net Income (Loss) Attributable to Parent Weighted Average Number of Shares Outstanding, Basic Weighted Average Number of Shares Outstanding, Basic Dilutive effect of convertible notes Incremental Common Shares Attributable to Conversion of Debt Securities Dilutive effect of stock-based awards Incremental Common Shares Attributable to Share-based Payment Arrangements Weighted Average Number of Shares Outstanding, Diluted Weighted Average Number of Shares Outstanding, Diluted Earnings (loss) per common share-Basic Earnings Per Share, Basic Earnings (loss) per common share - Diluted Earnings Per Share, Diluted Schedule of Long-Term Debt Maturities [Abstract] Schedule of Long-Term Debt Maturities [Abstract] Schedule of Long-term Debt Instruments [Table] Long-term Debt, Type [Domain] 2012 Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months 2013 Long-term Debt, Maturities, Repayments of Principal in Year Two 2014 Long-term Debt, Maturities, Repayments of Principal in Year Three 2015 Long-term Debt, Maturities, Repayments of Principal in Year Four 2016 Long-term Debt, Maturities, Repayments of Principal in Year Five Total minimum payments on debt Long-term Debt Derivative [Table] Derivative [Table] USD Term Loan Interest Rate Swap June 2011 A [Member] One year USD Term Loan interest rate swap that expired on June 2011 - A [Member] USD Term Loan Interest Rate Swap June 2011 B [Member] One year USD Term Loan interest rate swap that expired on June 2011 - B [Member] Pay fixed interest rate in interst rate swap Derivative, Fixed Interest Rate Percentage rate above EURIBOR receive on interest rate swap Derivative, Basis Spread on Variable Rate Derivative, Description of Variable Rate Basis Derivative, Description of Variable Rate Basis Notional amount of interest rate swaps Notional Amount of Interest Rate Derivatives Cash Payment to Terminate Interest Rate Swap Cash Payment to Terminate Interest Rate Swap Cash Payment to Terminate Interest Rate Swap Number of USD Term Loan Interest Rate Derivatives Expired Number of Interest Rate Derivatives Expired The number of interest rate swap contracts that expired as of the balance sheet date. Notional amount of Euro denominated term loan Secured Debt Number of foreign exchange forward contracts entered into YTD Number Of Foreign Exchange Forward Contracts Number of foreign exchange forward contracts entered into during the reporting period. Notional amount of foreign currency forward contracts Notional Amount of Foreign Currency Derivative Instruments Not Designated as Hedging Instruments Stock Based Compensation [Abstract] Stock-Based Compensation [Abstract] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Award Type and Plan Name [Axis] Share-based Compensation Arrangements by Share-based Payment Award, Award Type and Plan Name [Domain] [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Outstanding, beginning balance, Number Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Outstanding, beginning balance, Weighted Average Exercise Price Per Share Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Outstanding, beginning balance, Weighted Average Remaining Contractual Term Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Outstanding, beginning balance, Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Granted, Number Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Granted, Weighted Average Exercise Price Per Share Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Granted, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Exercised, Number Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Exercised, Weighted Average Exercise Price Per Share Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Exercised, Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value Forfeited, Number Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Forfeited, Weighted Average Exercise Price Per Share Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Expired, Number Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period Expired, Weighted Average Exercise Price Per Share Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price Outstanding, ending balance, Number Outstanding, ending balance, Weighted Average Exercise Price Per Share Outstanding, ending balance, Weighted Average Remaining Contractual Term Outstanding, ending balance, Aggregate Intrinsic Value Vested and Expected to Vest, Number Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number Vested and Expected to Vest, Weighted Average Exercise Price 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, Weighted Average Remaining Contractual Term Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Remaining Contractual Term Vested and Expected to Vest, Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value Exercisable, Number Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Exercisable, Weighted Average Exercise Price Per Share Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Exercisable, Weighted Average Remaining Contractual Term Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Exercisable, Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Quarterly Results (Unaudited) [Abstract] Quarterly Results (Unaudited) [Abstract] Schedule of Quarterly Financial Information [Table Text Block] Schedule of Quarterly Financial Information [Table Text Block] Income Tax Provision [Table] Income Tax Provision [Table] Summary of U.S. federal, state, and foreign taxes on income from continuing operations. Statement, Scenario [Axis] Scenario, Unspecified [Domain] Current Income Tax Provision (Benefit) [Abstract] Current Income Tax Provision (Benefit) [Abstract] Federal Current Federal Tax Expense (Benefit) State and local Current State and Local Tax Expense (Benefit) Foreign Current Foreign Tax Expense (Benefit) Total current Current Income Tax Expense (Benefit) Deferred Income Tax Provision (Benefit) [Abstract] Deferred Income Tax Provision (Benefit) [Abstract] Federal Deferred Federal Income Tax Expense (Benefit) State and local Deferred State and Local Income Tax Expense (Benefit) Foreign Deferred Foreign Income Tax Expense (Benefit) Total deferred Deferred Income Tax Expense (Benefit) Change in valuation allowance Valuation Allowance, Deferred Tax Asset, Change in Amount Total provision (benefit) for income taxes Income Tax Expense (Benefit) Compensation and Employee Benefit Plans [Text Block] Compensation and Employee Benefit Plans [Text Block] Ownership Interest Percentage [Abstract] Ownership Interest Percentage [Abstract] Basis of Consolidation [Table] Basis of Consolidation [Table] Basis of consolidation ownership interest policy [Table] Basis of Consolidation [Axis] Basis of Consolidation [Axis] Basis of Consolidation [Axis] Basis of Consolidation [Domain] Basis of Consolidation [Member] Basis of Consolidation [Member] Ownership Interest to be Held for Consolidation [Line Items] Ownership Interest to be Held for Consolidation [Line Items] Ownership Interest to be Held for Consolidation [Line Items] Ownership Interest to be Held for Consolidation Ownership Interest to be Held for Consolidation Ownership Interest to be Held for Consolidation Ownership Interest To Use Equity Method Ownership Interest To Use Equity Method The equity method of accounting is used for entities in which the company has a 50% or less invesment and exercises significant influence. Ownership Interest To Use Cost Method Ownership Interest To Use Cost Method Entities in which the company has less than 20% investment and where they do not excercise significant influence are accounted for under the cost method. Consolidated Statements of Operations [Abstract] Consolidated Statements of Operations [Abstract] Statement [Table] Statement [Table] Statement, Scenario [Axis] Scenario, Unspecified [Domain] Revenues Cost of revenues Cost of Goods and Services Sold Gross profit Gross Profit Operating expenses Operating Expenses [Abstract] Sales and marketing Selling and Marketing Expense Product development Research and Development Expense General and administrative General and Administrative Expense Amortization of intangible assets Amortization of Intangible Assets Restructuring expense Restructuring Charges Goodwill impairment Goodwill, Impairment Loss Total operating expenses Operating Expenses Operating income (loss) Operating Income (Loss) Other income (expense) Nonoperating Income (Expense) [Abstract] Interest income Investment Income, Interest Interest expense Interest Expense Loss on extinguishement of debt, net Loss on extinguishement of debt Amount represents the difference between the fair value of the consideration transferred to the holder that is allocated to the liability component of the convertible debt, which is equal to the fair value of the liability component immediately prior to extinguishment, and the net carrying amount of the liability component (including any unamortized discount and debt issuance costs). In the case of an induced conversion, a loss is recognized for the amount of the fair value of the securities or other consideration transferred to the holder in excess of fair value of the consideration issuable in accordance with the original conversion terms of the convertible debt. Amount also includes the difference between the fair value of the payments made and the carrying amount of the debt at the time of its extinguishment. Other income (expense), net Other Nonoperating Income (Expense) Total other income (expense) Nonoperating Income (Expense) Income (loss) before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Income tax (provision) benefit Net income (loss) Earnings (loss) per common share - Basic Weighted average common shares outstanding - Basic Weighted average common shares outstanding - Diluted Commitments and Contingencies [Abstract] Commitments and Contingencies [Abstract] Legal Entity [Axis] Entity [Domain] Plan Costs Health Benefit Plan Costs Amount represents health insurance plan costs such as paid claims, the change in the estimate of incurred but not reported claims, taxes related to health costs, and administrative fees. General Discussion of Pension and Other Postretirement Benefits [Abstract] Defined Benefit Pension Plans [Text Block] Pension and Other Postretirement Benefits Disclosure [Text Block] Quarterly Financial Information [Text Block] Quarterly Financial Information [Text Block] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Total Company [Domain] Corporate Unallocated [Member] Unallocated Amount to Segment [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Total other income (expense) Depreciation and amortization Depreciation, Depletion and Amortization Goodwill, Impairment Loss Earnings Per Share [Abstract] Earnings Per Share and Capital Structure [Text Block] Earnings Per Share [Text Block] Carrying Amount of Debt and Equity Components [Abstract] Carrying Amount of Debt and Equity Components [Abstract] Convertible Subordinated Debt [Member] Face value of convertible notes Unamortized discount Debt Instrument, Unamortized Discount Net carrying amount of debt component Convertible Subordinated Debt Carrying amount of equity component Debt Instrument, Convertible, Carrying Amount of Equity Component Valuation and Qualifying Accounts [Abstract] Valuation and Qualifying Accounts Disclosure [Table] Valuation and Qualifying Accounts Disclosure [Table] Valuation Allowances and Reserves Type [Axis] Valuation Allowances and Reserves Type [Axis] Valuation Allowances and Reserves [Domain] Valuation Allowances and Reserves [Domain] Valuation Allowance of Deferred Tax Assets [Member] Valuation and Qualifying Accounts Disclosure [Line Items] Valuation and Qualifying Accounts Disclosure [Line Items] Movement in Valuation Allowances and Reserves [Roll Forward] Balance at beginning of Period Valuation Allowances and Reserves, Balance Other Adjustments Valuation Allowances and Reserves, Adjustments Additions Charged to Cost and Expense Valuation Allowances and Reserves, Charged to Cost and Expense Balance at End of Period Noncurrent Net actuarial gain Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax Net prior service cost Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Prior Service Cost (Credit), before Tax Amount included in accumulated other comprehensive income Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), before Tax Schedule of Rent Expense [Table Text Block] Schedule of Rent Expense [Table Text Block] Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Schedule of Line of Credit Facilities [Table Text Block] Schedule of Line of Credit Facilities [Table Text Block] Schedule of Warranty Accruals [Table Text Block] Schedule of Warranty Accruals [Table Text Block] Schedule of Warranty Accruals [Table Text Block] Warranty Expense by Segment [Table Text Block] Warranty Expense by Segment [Table Text Block] Warranty Expense by Segment [Table Text Block] Schedule of Changes to Unearned Revenue for Extended Warranty [Table Text Block] Schedule of Changes to Unearned Revenue for Extended Warranty [Table Text Block] Health Benefit Plan Costs and Incurred But Not Reported Accrual Balance [Table Text Block] Health Benefit Plan Costs and Incurred But Not Reported Accrual Balance [Table Text Block] Health Benefit Plan Costs and Incurred But Not Reported Accrual Balance [Table Text Block] Intangible Assets [Abstract] Intangible Assets [Abstract] Schedule of Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets by Major Class [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Core Developed Technology [Member] Core Developed Technology [Member] Customer Contracts And Relationships [Member] Customer Contracts And Relationships [Member] Trademarks And Trade Names [Member] Trade Marks And Trade Names [Member] Trade Marks And Trade Names [Member] Other Intangible Assets [Member] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Gross Assets Finite-Lived Intangible Assets, Gross Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Net Finite-Lived Intangible Assets, Net Statement of Cash Flows [Abstract] Operating activities Net Cash Provided by (Used in) Operating Activities [Abstract] Net income (loss) Adjustments to reconcile net income (loss) to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Stock-based compensation Share-based Compensation Amortization of prepaid debt fees Amortization of Financing Costs Amortization of convertible debt discount Amortization of Debt Discount (Premium) Loss on extinguishment of debt Loss on Extinguishment of Debt NonCash, Net Amount represents the difference between the fair value of the liability component immediately prior to extinguishment, and the net carrying amount of the liability component (including any unamortized discount and debt issuance costs). In the case of an induced conversion, a loss is recognized for the amount of the fair value of the securities or other consideration transferred to the holder in excess of fair value of the consideration issuable in accordance with the original conversion terms of the debt. Deferred taxes, net Increase (Decrease) in Deferred Income Taxes Restructuring expense, non-cash (see Note 13) Restructuring Costs Other adjustments, net Other Noncash Income (Expense) Changes in operating assets and liabilities, net of acquisitions: Increase (Decrease) in Operating Capital [Abstract] Accounts receivable Increase (Decrease) in Accounts Receivable Inventories Increase (Decrease) in Inventories Other current assets Increase (Decrease) in Other Current Assets Other long-term assets Increase (Decrease) in Other Noncurrent Assets Accounts payables, other current liabilities, and taxes payable Increase (Decrease) in Accounts Payable and Accrued Liabilities Wages and benefits payable Increase (Decrease) in Employee Related Liabilities Unearned revenue Increase (Decrease) in Deferred Revenue Warranty Warranty Total increases (decreases) in estimated warranty claims based on historical and projected product performance trends and costs. Other operating, net Increase (Decrease) in Other Operating Assets and Liabilities, Net Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Investing activities Net Cash Provided by (Used in) Investing Activities [Abstract] Acquisitions of property, plant, and equipment Payments to Acquire Property, Plant, and Equipment Business acquisitions, net of cash equivalents acquired Business Acquisitions Contingent Consideration Net Of Cash Equivalents Acquired The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. Amount may also included subsequent contingent consideration payments on previous acquisitions completed prior to January 1, 2009. Other investing, net Payments for (Proceeds from) Other Investing Activities Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Financing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from borrowings Proceeds from Issuance of Senior Long-term Debt Payments on debt Repayments of Long-term Debt Issuance of common stock Proceeds from Issuance of Common Stock Repurchase of common stock Payments for Repurchase of Common Stock Other financing, net Proceeds from (Payments for) Other Financing Activities Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Effect of foreign exchange rate changes on cash and cash equivalents Effect of Exchange Rate on Cash and Cash Equivalents Increase (decrease) in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents at beginning of period Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents at end of period Non-cash transactions: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Property, plant, and equipment purchased but not yet paid, net Noncash or Part Noncash Acquisition, Fixed Assets Acquired Fair value of contingent and deferred consideration payable for business acquisition Fair value of contingent and deferred consideration payable for business acquisition Fair value as of the acquisition date of potential payments under the contingent and deferred consideration arrangement. Exchange of debt (face value) for common stock (see Note 6) Debt Conversion, Original Debt, Amount Supplemental disclosure of cash flow information: Supplemental Cash Flow Information [Abstract] Income taxes, net Income Taxes Paid, Net Interest, net of amounts capitalized Interest Paid, Net Revenues Gross Profit And Operating Income By Segment [Table Text Block] Schedule of Segment Reporting Information, by Segment [Table Text Block] Reconciliation of Assets from Segment to Consolidated [Table Text Block] Reconciliation of Assets from Segment to Consolidated [Table Text Block] Revenues By Region [Table Text Block] Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block] Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block] Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block] Depreciation And Amortization Expense Associated With Segments [Table Text Block] Depreciation And Amortization Expense Associated With Segments [Table Text Block] Depreciation And Amortization Expense Associated With Segments [Table Text Block] Employee Benefit Type [Axis] Employee Benefit Type [Axis] Type of Employee Benefit and Compensation [Domain] Type of Employee Benefit and Compensation [Domain] Bonus and profit sharing plans expense Bonus and profit sharing plans expense Bonus and profit sharing plans expense Schedule of Fair Value of Financial Instruments on the Consolidated Balance Sheets [Abstract] Schedule of Fair Value of Financial Instruments on the Consolidated Balance Sheets [Abstract] Schedule of Fair Values Of Financial Instruments by Balance Sheet Grouping [Table Text Block] Fair Value, by Balance Sheet Grouping [Table Text Block] Shareholder Rights Plan Information [Abstract] Shareholder Rights Plan Information [Abstract] Schedule of Shareholder Rights Plan [Table] Schedule of Shareholder Rights Plan [Table] Description of the company's shareholder rights plan [Table] Shareholder Rights Plan [Axis] Shareholder Rights Plan [Axis] Shareholder Rights Plan [Axis] Class of warrant or right [Domain] Class of Warrant or Right [Domain] Preferred share purchase right, Shares Preferred share purchase right, Shares Shares of preferred stock with purchase right for each outstanding share of common stock, without par value. Beneficial ownership Beneficial ownership The minimum beneficial ownership percentage to trigger the separation of the rights from the common stock, which will then become execisable. Right Exercise Price Right Exercise Price The dollar amount that after the distribution date, each Right will entitle the holder to purchase one one-hundredth of a share of Series R Cumulative Participating Preferred Stock of the Company. Percentage threshold of the assets of any person or group that becomes an acquiring person Percentage threshold of the assets of any person or group that becomes an acquiring person If, at any time after any person or group becomes an acquiring person, we are acquired in a merger or other business combination with another entity, or if 50% or more of its assets or assets accounting for 50% or more of its net income or revenues are transferred, each Right will entitle its holder to purchase, for the purchase price, that number of shares of common stock of the person or group engaging in the transaction having a then current market value of twice the purchase price. Percentage of ownership of common shares Percentage of ownership of common shares Percentage of ownership of common shares Number of rights Number of rights At any time after any person or group becomes an acquiring person, but before a person or group becomes the beneficial owner of more than 50% of the common shares, the Board or Directors may elect to exchange each Right for consideration per Right consisting of one-half of the number of common shares that would be issuable at such time on the exercise of one Right and without payment of the purchase price. Right per unit price Right per unit price Right per unit price Schedule of Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits, by Title of Individual and by Type of Deferred Compensation [Table] Schedule of Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits, by Title of Individual and by Type of Deferred Compensation [Table] Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits, by Title of Individual [Axis] Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits, by Title of Individual [Axis] Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits, by Type of Deferred Compensation [Axis] Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits, by Type of Deferred Compensation [Axis] Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items] Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items] Percentage of employer match into employee savings plan Percentage of employer match into employee savings plan. Percentage of employer match into employee savings plan. Percentage of employee salary deferral eligible for the employer 50% match Percentage of employee salary deferral for which the employer makes a 50% matching contribution Percentage of employee salary deferral for which the employer makes a 50% matching contribution. Subsequent Events [Abstract] Subsequent Event [Text Block] Subsequent Events [Text Block] Schedule of Goodwill [Table] Schedule of Goodwill [Table] Goodwill [Line Items] Goodwill [Line Items] Schedule of Goodwill [Table Text Block] Schedule of Goodwill [Table Text Block] Schedule of Goodwill Impairment [Table Text Block] Schedule of Goodwill Impairment [Table Text Block] Schedule of Goodwill Impairment [Table Text Block] Statement of Financial Position [Abstract] ASSETS Assets [Abstract] Cash and cash equivalents Accounts receivable, net Accounts Receivable, Net, Current Inventories Deferred tax assets current, net Deferred Tax Assets, Net, Current Other current assets Other Assets, Current Total current assets Assets, Current Property, plant, and equipment, net Property, Plant and Equipment, Net Deferred tax assets noncurrent, net Deferred Tax Assets, Net, Noncurrent Other long-term assets Other Assets, Noncurrent Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Goodwill Goodwill Total assets LIABILITIES AND SHAREHOLDERS' EQUITY Liabilities and Equity [Abstract] Accounts payable Accounts Payable, Current Other current liabilities Other Liabilities, Current Wages and benefits payable Employee-related Liabilities, Current Taxes payable Taxes Payable, Current Current portion of debt Long-term Debt, Current Maturities Current portion of warranty Current portion of warranty Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated warranty claims based on historical and projected product performance trends and costs. For classified balance sheets, represents the current portion of the liabilities (due within one year or within the normal operating cycle, if longer). Unearned revenue Deferred Revenue, Current Deferred tax liabilities current, net Deferred Tax Liabilities, Current Total current liabilities Liabilities, Current Long-term debt Long-term Debt, Excluding Current Maturities Long-term warranty Long Term Warranty Carrying value as of the balance sheet date of obligations incurred through that date and due after one year for estimated warranty claims based on historical and projected product performance trends and costs. Pension plan benefit liability Defined Benefit Pension Plan, Liabilities, Noncurrent Deferred tax liabilities noncurrent, net Deferred Tax Liabilities, Noncurrent Other long-term obligations Other Liabilities, Noncurrent Total liabilities Liabilities Commitments and Contingencies Commitments and Contingencies Shareholders' equity Stockholders' Equity Attributable to Parent [Abstract] Preferred stock Preferred Stock, Value, Issued Common stock Common Stock, Value, Issued Accumulated other comprehensive income (loss), net Accumulated Other Comprehensive Income (Loss), Net of Tax (Accumulated deficit) retained earnings Retained Earnings (Accumulated Deficit) Total shareholders' equity Stockholders' Equity Attributable to Parent Total liabilities and shareholders' equity Liabilities and Equity Summary of the Allowance for Doubtful Accounts Activity [Abstract] Summary of the Allowance for Doubtful Accounts Activity [Abstract] Summary of the Allowance for Doubtful Accounts Activity [Table] Summary of the Allownace for Doubtful Accounts Activity [Axis] Summary of Allowance for Doubtful Accounts Activity [Domain] Allowance for Doubtful Accounts [Member] Summary of Allowance for Doubtful Accounts Activity [Line Items] Beginning balance Allowance for Doubtful Accounts Receivable, Current Provision (release) of doubtful accounts, net Accounts written-off Valuation Allowances and Reserves, Deductions Effects of change In exchange rates EffectsOfChangeInExchangeRates The effect of exchange rate changes on balances held in foreign currencies. Ending balance Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] Computation of Basic and Diluted Earnings Per Share [Table Text Block] Schedule of Earnings Per Share Reconciliation [Table Text Block] Future Minimum Lease Payments [Abstract] Future Minimum Lease Payments [Abstract] 2012 Operating Leases, Future Minimum Payments Due, Current 2013 Operating Leases, Future Minimum Payments, Due in Two Years 2014 Operating Leases, Future Minimum Payments, Due in Three Years 2015 Operating Leases, Future Minimum Payments, Due in Four Years 2016 Operating Leases, Future Minimum Payments, Due in Five Years Beyond 2016 Operating Leases, Future Minimum Payments, Due Thereafter Future minimum lease payments Operating Leases, Future Minimum Payments Due Restructuring Related Balance Sheet Activity [Abstract] Restructuring Related Balance Sheet Activity [Abstract] Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Restructuring Cost and Reserve [Axis] Restructuring Cost and Reserve [Axis] Type of Restructuring [Domain] Type of Restructuring [Domain] Employee Severance [Member] Employee Severance [Member] Asset Impairment and Net Gain (Loss) on Sale or Disposal [Member] Asset Impairment and Net Gain (Loss) on Sale or Disposal [Member] Asset Impairment and Net Gain (Loss) on Sale or Disposal [Member] Other Restructuring Costs [Member] Other restructuring costs [Member] Other restructuring costs [Member] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Beginning balance Restructuring Reserve Cost incurred and charged to expense Cash payments Payments for Restructuring Non-cash items Restructuring Costs and Asset Impairment Charges Effect of change in exchange rates Effect of change in exchange rates on restructuring activity Effect of change in exchange rates on restructuring activity Ending balance Other Comprehensive Income (Loss) [Abstract] Other Comprehensive Income (Loss) [Abstract] Accumulated Other Comprehensive Income (loss) [Axis] Accumulated Other Comprehensive Income (loss) [Axis] [Axis] Accumulated Other Comprehensive Income (loss) [Axis] [Axis] Components of Accumulated Other Comprehensive Income (Loss) [Domain] Components of Accumulated Other Comprehensive Income (Loss) [Domain] Components of Accumulated Other Comprehensive Income (Loss) [Domain] Before-tax amount [Abstract] Before-tax amount [Abstract] Before-tax amount [Abstract] Foreign currency translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax Net unrealized gain (loss) on derivative instruments designated as cash flow hedges Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax Net unrealized gain (loss) on a nonderivative net investment hedging instrument Net Unrealized Gain (Loss) On Nonderivative Net Investment Hedging Instrument Before Tax Net Unrealized Gain (Loss) On Nonderivative Net Investment Hedging Instrument Before Tax Net hedging (gain) loss reclassified into net income (loss) Pension plan benefits liability adjustment Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, before Tax Total other comprehensive income (loss), before tax Other Comprehensive Income (Loss), before Tax Tax (provision) benefit [Abstract] Tax (provision) benefit [Abstract] Tax (provision) benefit [Abstract] Foreign currency translation adjustment Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax Net unrealized gain (loss) on derivative instruments designated as cash flow hedges Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax Effect Net unrealized gain (loss) on a nonderivative net investment hedging instrument Net Unrealized Gain (Loss) On Nonderivative Net Investment Hedging Instrument Tax Tax effect on net unrealized gain (loss) on foreign currency denominated loan designated as a hedge of a net investment in international operations. Net hedging (gain) loss reclassified into net income (loss) Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Tax Pension plan benefits liability adjustment Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax Total other comprehensive income (loss) tax (provision) benefit Other Comprehensive Income (Loss), Tax Net-of-tax amount Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Foreign currency translation adjustments, net Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Net unrealized gain (loss) on derivative instruments designated as cash flow hedges Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax Net unrealized gain (loss) on nonderivative hedging instruments Net Unrealized Gain (Loss) On Nonderivative Net Investment Hedging Instrument Net Net Unrealized Gain (Loss) On Nonderivative Net Investment Hedging Instrument Net Of Tax Net hedging (gain) loss reclassified into net income (loss) Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Net of Tax Pension plan benefits liability adjustment, net Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax Total other comprehensive income (loss), net of tax Other Comprehensive Income (Loss), Net of Tax Shareholders' Equity [Abstract] Shareholders' Equity [Abstract] Stockholders' Equity Note Disclosure [Text Block] Stockholders' Equity Note Disclosure [Text Block] Stock Based Compensation [Abstract] [Abstract] Stock-Based Compensation [Abstract] Stock-based Compensation Exepnse by Plan Type [Table] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Stock options Stock or Unit Option Plan Expense Restricted stock units Restricted Stock or Unit Expense Unrestricted stock awards Unrestricted Stock Awards Compensation Expense The noncash expense that represents the cost of unrestricted stock distributed to board of directors as a portion of their compensation. ESPP Employee Stock Purchase Plan Compensation Expense The noncash expense that represents the cost of awards granted to employees as compensation under the employee stock purchase plan. Total stock-based compensation Related tax benefit Employee Service Share-based Compensation, Tax Benefit from Compensation Expense Property, Plant, and Equipment Policy Additional Information [Abstract] Property, Plant, and Equipment Policy Additional Information [Abstract] Schedule of Property, Plant and Equipment [Table] Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment by Type [Axis] Property, Plant and Equipment by Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Building and Building Improvements [Member] Building and Building Improvements [Member] Machinery and equipment, computers and purchased software, and furniture [Member] Machinery and equipment, computers and purchased software, and furniture [Member] Machinery and equipment, computers and purchased software, and furniture [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Property, Plant and Equipment, Useful Life, Average Property, Plant and Equipment, Useful Life, Average Property, Plant and Equipment, Useful Life, Minimum Property, Plant and Equipment, Useful Life, Minimum Property, Plant and Equipment, Useful Life, Maximum Property, Plant and Equipment, Useful Life, Maximum Restructuring [Abstract] Restructuring [Abstract] Schedule of Restructuring and Related Costs [Table Text Block] Schedule of Restructuring and Related Costs [Table Text Block] Tabular Disclosure Summarizing the Activity within the Restructuring Related Balance Sheet Accounts [Table Text Block] Tabular Disclosure Summarizing the Activity within the Restructuring Related Balance Sheet Accounts [Table Text Block] Tabular disclosure of an entity's restructuring reserve that occurred during the period associated with the exit from or disposal of business activities or restructurings for each major type of cost. This element may also include asset impairments and net gain (loss) on sale or disposal of assets that occurred during the period. [Table Text Block] Quarterly Results (Unaudited) [Table] Quarterly Results (Unaudited) [Table] Quarterly Results (Unaudited) [Table] Quarterly Results [Axis] Quarterly Results [Axis] Quarterly Results [Domain] Quarterly Results [Domain] First Quarter [Member] First Quarter [Member] Second Quarter [Member] Second Quarter [Member] Third Quarter [Member] Third Quarter [Member] Fourth Quarter [Member] Fourth Quarter [Member] Quarterly Results [Line Items] Quarterly Results [Line Items] Stock Price Common Stock, Market Price The maximum or minimum stock price of Itron's common stock, based on daily closing prices during a stated period. Restricted Stock Units (RSUs) [Member] Restricted Stock Units (RSUs) [Member] Outstanding, beginning balance, Number Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Granted, Number Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Granted, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Released, Number Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures Released, Aggregate Intrinsic Value Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Released In Period Aggregate Intrinsic Value The aggregate instrinsic value for RSU's released is the market value of stock, before applicable income taxes, based on the closing price on the stock release date. Forfeited, Number Stock Issued During Period, Shares, Restricted Stock Award, Forfeited Outstanding, ending balance, Number Expected to vest, Number Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Expected To Vest In Period Total number of restricted awards expected to vest as of the end of the reporting period. Expected to vest, Aggregate Intrinsic Value Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Expected To Vest Aggregate Intrinsic Value The aggregate intrinsic value of RSUs, as at the end of the period, expected to vest, is the market value of stock, before applicable income taxes, based on the closing price at the end of the period. Fair Values of Financial Instruments [Abstract] Fair Values of Financial Instruments [Abstract] Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Fair Value by Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurements, Recurring [Member] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value, Inputs, Level 2 [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Assets Cash and cash equivalents, at fair value Cash and Cash Equivalents, Fair Value Disclosure Foreign exchange forwards, asset Foreign Exchange Forwards Carrying amount as of the balance sheet date of all foreign currency derivative assets not designated as hedging instruments. Foreign exchange forwards, asset, at fair value Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value Liabilities Liabilities [Abstract] Term loans Term loans, at fair value Long-term Debt, Fair Value Multicurrency revolving line of credit, Fair Value of Amount Outstanding Line of Credit Facility, Fair Value of Amount Outstanding Convertible senior subordinated notes Convertible senior subordinated notes at fair value Convertible Debt, Fair Value Disclosures Interest rate swaps Interest Rate Swaps Carrying value, which represents the fair value, as of the balance sheet date of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as liabilities. Interest rate swaps, at fair value Interest Rate Derivative Liabilities, at Fair Value Foreign exchange forwards, liability Foreign Exchange Forwards Liability Carrying amount as of the balance sheet date of all foreign currency derivative liabilities not designated as hedging instruments. Foreign exchange forwards, liability, at fair value Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value Consolidated Statements of Shareholders Equity [Abstract] Consolidated Statements of Shareholders Equity [Abstract] Report Date [Axis] Report Date [Axis] Financial Statements Date [Domain] Financial Statements Date [Domain] Statement, Equity Components [Axis] Statement, Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Accumulated Other Comprehensive Income (Loss) [Member] Retained Earnings [Member] Stockholders' Equity at Period Start (shares) Common Stock, Shares, Outstanding Stockholders' Equity at Period Start (value) Options exercised (shares) Options Exercised (value) Stock Issued During Period, Value, Stock Options Exercised, Net of Tax Benefit (Expense) Restricted Stock Awards Released (shares) Stock Issued During Period, Shares, Restricted Stock Award, Gross Restricted Stock Awards Released (value) Stock Issued During Period, Value, Restricted Stock Award, Gross Issuance of Stock-Based Compensations Awards (shares) Stock Issued During Period, Shares, Share-based Compensation, Gross Issuance of Stock-Based Compensation Awards (value) Stock Issued During Period, Value, Share-based Compensation, Gross Employee Stock Purchase Plan (shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Employee Stock Purchase Plan (value) Stock Issued During Period, Value, Employee Stock Purchase Plan Stock-Based Compensation Expense Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation Repurchase of common stock (shares) Stock Repurchased During Period, Shares Repurchase of common stock (value) Stock Repurchased During Period, Value Exchange of Debt for Common Stock (shares) Debt Conversion, Converted Instrument, Shares Issued Exchange Of Debt For Common Stock (value) Exchange Of Debt For Common Stock Value The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction, net of the fair value measurement of the equity component, tax, and advisory fees paid. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Issuance of Common Stock (shares) Stock Issued During Period, Shares, New Issues Issuance of Common Stock (value) Stock Issued During Period, Value, New Issues Stockholders' Equity at Period End (shares) Stockholders' Equity at Period End (value) 2012 Defined Benefit Plan, Expected Future Benefit Payments in Year One 2013 Defined Benefit Plan, Expected Future Benefit Payments in Year Two 2014 Defined Benefit Plan, Expected Future Benefit Payments in Year Three 2015 Defined Benefit Plan, Expected Future Benefit Payments in Year Four 2016 Defined Benefit Plan, Expected Future Benefit Payments in Year Five 2017 - 2021 Defined Benefit Plan, Expected Future Benefit Payments in Five Fiscal Years Thereafter Employee Stock [Member] Shares of stock sold to employees Weighted average fair value per ESPP award Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Finite-Lived Intangible Assets, Future Amortization Expense [Abstract] Estimated Future Annual Amortization Expense [Table] Estimated Future Annual Amortization Expense [Table] Estimated Future Annual Amortization Expense [Table] 2012 Future Amortization Expense, Year One 2013 Future Amortization Expense, Year Two 2014 Future Amortization Expense, Year Three 2015 Future Amortization Expense, Year Four 2016 Future Amortization Expense, Year Five Beyond 2016 Future Amortization Expense, after Year Five Total intangible assets net Finite-Lived Intangible Assets, Future Amortization Expense Schedule of Changes in the Components of Accumulated Other Comprehensive Income (Loss) [Abstract] Schedule of Changes in the Components of Accumulated Other Comprehensive Income (Loss) [Abstract] Schedule of Changes in the Components of Accumulated Other Comprehensive Income (Loss) [Table] Schedule of Changes in the Components of Accumulated Other Comprehensive Income (Loss) [Table] Schedule of Changes in the Components of Accumulated Other Comprehensive Income (Loss) [Table] Components of Accumulated Other Comprehensive Income (loss) [Axis] Components of Accumulated Other Comprehensive Income (loss) [Axis] Components of Accumulated Other Comprehensive Income (loss) [Axis] Accumulated Other Comprehensive Income (Loss) [Domain] Schedule of Changes in Components of Accumulated Other Comprehensive Income (Loss) [Domain] Schedule of Changes in Components of Accumulated Other Comprehensive Income (Loss) [Domain] Foreign Currency Translation Adjustments [Member] Accumulated Translation Adjustment [Member] Net Unrealized Gain (Loss) on Derivative Instruments [Member] Accumulated Other Comprehensive Income, Net Unrealized Gain (Loss) on Derivative Instruments [Member] Accumulated Other Comprehensive Income, Net Unrealized Gain (Loss) on Derivative Instruments [Member] Net Unrealized Gain (Loss) on Nonderivative Instruments [Member] Accumulated Other Comprehensive Income, Net Unrealized Gain (Loss) on Nonderivative Instruments [Member] Accumulated Other Comprehensive Income, Net Unrealized Gain (Loss) on Nonderivative Instruments [Member] Pension Plan Benefit Liability Adjustments [Member] Accumulated Defined Benefit Plans Adjustment [Member] Schedule of Changes in Components of Accumulated Other Comprehensive Income (Loss) [Line Items] Schedule of Changes in Components of Accumulated Other Comprehensive Income (Loss) [Line Items] Schedule of Changes in Components of Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated other comprehensive income (loss), net Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive income (loss), net Effect of Foreign Exchange Option and Forward Derivatives in the Income Statement (Table) Derivative Instruments, Gain (Loss) by Income Statement Location [Axis] Income Statement and Other Comprehensive Income (Loss) Location [Domain] Other Income (Expense) [Member] Other Income (Expense) [Member] Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments Not Designated as Hedging Instruments [Abstract] Foreign exchange forward contracts Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments Summary of Significant Accounting Policies [Abstract] Summary of Significant Accounting Policies [Abstract] Significant Accounting Policies [Text Block] Significant Accounting Policies [Text Block] Schedule of Net Periodic Pension Benefit Costs [Abstract] Schedule of Net Periodic Pension Benefit Costs [Abstract] Schedule of Net Periodic Pension Benefit Costs [Table] Schedule of Net Periodic Pension Benefit Costs [Axis] Schedule of Net Periodic Pension Benefit Costs [Member] Pension Plans, Defined Benefit [Member] Service cost Defined Benefit Plan, Service Cost Interest cost Defined Benefit Plan, Interest Cost Expected Return on Plan Assets Defined Benefit Plan, Expected Return on Plan Assets Settlements and curtailments Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments Amortization of actuarial net (gains) loss Defined Benefit Plan, Amortization of Net Gains (Losses) Amortization of Unrecognized Prior Service Costs Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Net Periodic Benefit Cost Defined Benefit Plan, Net Periodic Benefit Cost Summary Of The Intangible Asset Account Activity [Table] Summary Of The Intangible Asset Account Activity [Table] Summary Of The Intangible Asset Account Activity [Table] Parent [Member] Beginning balance, intangible assets, gross Intangible assets acquired Intangible Assets Acquired During Period Intangible Assets Acquired During Period Assets transferred to held for sale Intangible Asset, Gross Amount, Transferred to Held for Sale Intangible Asset, Gross Amount, Transferred to Held for Sale Assets no longer in use written off Intangible Asset No Longer In Use Written Off Intangible Asset No Longer In Use Written Off During the Period Effect of change In exchange rates Effect Of Change In Exchange Rates Intangible Asset Effect Of Change In Exchange Rates - Intangible Asset Activity Table Only Ending balance, intangible assets, gross Intangible asset, net amount, transferred to held for sale Intangible Asset, Net Amount, Transferred to Held for Sale Intangible Asset, Net Amount, Transferred to Held for Sale Expected annual rate of compensation Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase Discount rate Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate Expected rate of return on plan assets Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets Expected annual rate of compensation Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase Long Term Retainage Contract Receivables [Abstract] Long Term Retainage Contract Receivables [Abstract] Long Term Retainage Contract Receivables [Table] Long Term Retainage Receivables Billed But Not Yet Paid [Table] Long Term Retainage Receivables Billed But Not Yet Paid [Table] Reclassified from current accounts receivables to other long-term assets [Axis] Reclassified from current accounts receivables to other long-term assets [Axis] Reclassified from current accounts receivables to long-term current assets [Domain] Reclassified from current accounts receivables to long-term current assets [Domain] Reclassified from current accounts receivables to other long-term assets [Member] Reclassified from current accounts receivables to other long-term assets [Member] Long Term Retainage Contract Receivables [Axis] Long Term Retainage Contract Receivables [Axis] Long Term Retainage Contract Receivables [Axis] Long-term retainage contract [Domain] Long-term retainage contract [Domain] Long Term Retainage Contract Receivables [Member] Long Term Retainage Contract Receivables [Member] Long term Retainage Contract Receivables [Line Items] Long term Retainage Receivables [Line Items] Long term Retainage Receivables [Line Items] Contract Receivable Retainage, Due One Year or Less Contract Receivable Retainage, Due One Year or Less Unbilled Contracts Receivable Unbilled Contracts Receivable Long-term unbilled receivables and long-term retainage contract receivables Long-term unbilled receivables and Long-Term billed retainage Long-term unbilled receivables and Long-Term billed retainage, which has not been paid by the customer in accordance with long-term contract provisions. Contract Receivable Retainage, Due after One Year Contract Receivable Retainage, Due after One Year Number of months current retainage amounts and unbilled receivables are expected to be collected Number of months current retainage amounts and unbilled receivables are expected to be collected The number of months current retainage amounts and unbilled receivables are expected to be collected as of the balance sheet date. Number of months collection is not anticipated for long-term unbilled and retainage contract receivables Number of months collection is not anticipated for long-term unbilled and retainage contract receivables The number of months collection is not anticipated for unbilled and retainage contract receivables as of the balance sheet date, which classifies the receivabels as long-term (greater than 12 months). Number of Months Long-Term Unbilled and Retainage Contract Receivables are Expected to be Collected Number of Months Long-Term Unbilled and Retainage Contract Receivables are Expected to be Collected The number of months that long-term unbilled and retainage contract receivables are expected to be collected as of the balance sheet date. Convertible Senior Subordinated Notes [Abstract] Convertible Senior Subordinated Notes [Abstract] Debt Instrument, Name [Domain] Option of the Holders [Member] Option of the Holders [Member] Option of the Company [Member] Option of the Company [Member] Investment [Axis] Investment [Domain] Senior Subordinated Notes [Member] Convertible Senior Subordinated Notes [Line Items] Repurchase of convertible senior subordinated debt Repurchase of convertible senior subordinated debt Repurchase of convertible senior subordinated debt Line of credit borrowed Line of credit borrowed Amount of line of credit borrowed to pay down debt. Repayments of Long-term Debt Estimated nonconvertible debt borrowing rate Estimated Nonconvertible Debt Borrowing Rate Rate prepresents the entities non-convertible debt borrowing rate at the time their convertible notes were issued, which also relfects the effective interest rate on the liability component. Debt Conversion, Converted Instrument, Shares Issued Conversion of Stock, Amount Converted Conversion of Stock, Amount Converted Debt Conversion, Original Debt, Amount Percentage of the Aggregate Principal of Debt Outstanding at the date of Exchange Percentage of the Aggregate Principal of Debt Outstanding at the date of Exchange Percentage of the aggregate principal of debt outstanding at the date the debt was exchanged for common stock. Inducement Loss on Extinguishment of Debt Inducement Loss on Extinguishment of Debt The difference in the value of the shares of common stock issued under the exchange agreement and the value of the shares of common stock used to derive the amount payable under the original conversion agreement, resulting in a loss on extinguishment of debt (the inducement loss). Revaluation Gain on Remeasurement of Convertible Notes on Extinguishment of Debt Revaluation Gain on Remeasurement of Convertible Notes on Extinguishment of Debt The gain recognized upon extinguishment of debt as a result of the remeasurement of the components of the convertible notes due to an increase in the borrowing rate. Net Loss On Extinguishement of Debt Net Loss On Extinguishement of Debt Net loss on extinguishement of debt is the net of the inducement loss, which is the difference in value of the shares of commom stock issued under the exchange agreement and the value of the shares of common stock used to derive the amount payable under the conversion agreement, and the revaluation gain, which is due to the remeasuremnt of the components of the convertible notes using higher borrowing rates, plus an allocation of advisory fees. Convertible debt settlement consideration Convertible debt settlement consideration The remaining settlement consideration paid on conversion of debt, plus an allocation of advisory fees. Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event [Line Items] Subsequent Event [Line Items] Shares of Common Stock Repurchased Between Period End Date and Filing Date Shares of Common Stock Repurchased Between Period End Date and Filing Date Shares of Common Stock Repurchased Between Period End Date and Filing Date Shares of Common Stock Repurchase Executed Before the Balance Sheet Date but Settled After the Balance Sheet Date Shares of Common Stock Repurchase Executed Before the Balance Sheet Date but Settled After the Balance Sheet Date Shares of Common Stock Repurchase Executed Before the Balance Sheet Date but Settled After the Balance Sheet Date Average Price Per Share of Common Stock Repurchased Between Period End Date and Filing Date Average Price Per Share of Common Stock Repurchased Between Period End Date and Filing Date Average Price Per Share of Common Stock Repurchased Between Period End Date and Filing Date Business Acquisition, Cost of Acquired Entity, Cash Paid Business Acquisition, Cost of Acquired Entity, Cash Paid Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table] Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table] Stock Incentive Plan [Member] 2010 Stock Incentive Plan, which consist of stock options, restricted stock units, and unrestricted stock awards. (Member) Long Term Performance Restricted Stock Award [Member] Restricted stock awards granted during the year related to the Long Term Performance Plan (LTPP), which may only become eligible for vesting as of December 31 of year, upon satisfaction of the attached performance condition. [Line Items] Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] Number of shares authorized for issuance under the Stock Incentive Plan Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Number of shares available for future grant under the Stock Incentive Plan Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Award vesting rights Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights Unrecognized compensation expense Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized Unrecognized compensation expense, Expected weighted average period for recognition Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition Maximum number of RSUs that may become eligible for vesting related to performance awards granted in the year Restricted Awards Eligible For Vesting The maximum number of the annual restricted awards that may become eligible for vesting pending the satisfaction of performance conditions. ESPP, percentage discount from market price on purchase date Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Purchase Date ESPP, maximum percentage of employee salary eligible for participation Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Rate Shares available for future issuance under the ESPP Shares available for issuance employee stock purchase plan The number of shares of common stock available for future issuance under the employee stock purchase plan as of the balance sheet date. Stock Options Expiration Period Stock Options Expiration Period Stock Options Expiration Period in Years from Grant Date Deferred Tax Assets and Liabilities [Table] Deferred Tax Assets and Liabilities [Table] Deferred Tax Assets and Liabilities [Table] U.S. federal [Member] Deferred tax assets Deferred Tax Assets, Gross [Abstract] Loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards Accrued expenses Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities Warranty reserves Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Warranty Reserves Tax credits Tax Credit Carryforward, Deferred Tax Asset Equity compensation Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost Depreciation and amortization Deferred Tax Assets, Depreciation and Amortization The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from the excess of the tax basis over GAAP book basis of tangible and intangible assets. Pension plan benefits expense Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Pensions Inventory valuation Deferred Tax Assets, Inventory Other deferred tax assets, net Deferred Tax Assets, Other Total deferred tax assets Deferred Tax Assets, Gross Valuation allowance Deferred Tax Assets, Valuation Allowance Total deferred tax assets, net of valuation allowance Deferred Tax Assets, Net Deferred tax liabilities Deferred Tax Liabilities [Abstract] Depreciation and amortization Deferred Tax Liabilities, Depreciation and Amortization The amount as of the balance sheet date of the estimated future tax effects arising from the excess of the GAAP book basis over tax basis of tangible and intangible assets which will increase future taxable income when such temporary difference is reversed. Convertible debt Deferred Tax Liabilities, Financing Arrangements Tax effect of accumulated translation Deferred Tax Liabilities, Other Comprehensive Income Other deferred tax liabilities, net Deferred Tax Liabilities, Other Total deferred tax liabilities Deferred Tax Liabilities Net deferred tax assets Deferred Tax Assets (Liabilities), Net Deferred Tax Assets, Tax Credit Carryforwards, Research and Development Deferred Tax Assets, Tax Credit Carryforwards, Research Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax Deferred Tax Assets, Tax Credit Carryforwards, Foreign Deferred Tax Assets, Tax Credit Carryforwards, Foreign Major Customers, by Reporting Segments [Table] Schedule of Revenue by Major Customers, by Reporting Segments [Table] Operating Segments [Member] Operating Segments [Member] Revenue, Major Customer [Line Items] Revenue, Major Customer [Line Items] Major Customers Percentage Revenue Threshold Percentage Of Revenues By Major Customers Percentage represents the concentration risk threshold for customer revenues as a percent of total company revenues and/or total segment revenues. Customer with revenues greater than this percentage threshold of total company revenues and/or segment revenues must be stated. Number Of Major Customers Number Of Major Customers Represents number of customers with revenues greater than 10% of total company and/or segment revenues for the periods presented. Percentage of total company revenue represented by one customer Entity-Wide Revenue, Major Customer, Percentage Amount of revenue, expressed as a percentage, generated from a single external customer that accounts for 10 percent or more of an entity's revenues. Depreciation Expense [Abstract] Depreciation Expense [Abstract] Depreciation expense [Table] Depreciation expense [Table] Depreciation Expense [Table] Depreciation expense [Axis] Depreciation expense [Axis] Depreciation expense [Domain] Depreciation expense [Domain] Depreciation expense [Member] Depreciation expense [Member] Depreciation expense [Line Items] Depreciation Expense [Line Items] Depreciation Expense [Line Items] Depreciation expense Depreciation Interest Costs, Capitalized During Period Interest Costs, Capitalized During Period Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Accumulated OCI for Derivative and Nonderivative Instruments Designated as Hedging Instruments, Net of Tax [Table Text Block] Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block] Effect of Cash Flow Derivatives on the Balance Sheet and Income Statement, Before Tax [Table Text Block] Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Table Text Block] Schedule of Net Investment Hedges in Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of Net Investment Hedges in Accumulated Other Comprehensive Income (Loss) [Table Text Block] Foreign Exchange Derivatives Not Designated As Hedging Instruments [Table Text Block] Schedule of Other Derivatives Not Designated as Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block] Goodwill [Abstract] Goodwill [Abstract] Goodwill Impairment [Axis] Timing of goodwill impairment charge recorded: interim, adjustment, final. Goodwill Impairment [Domain] Goodwill Impairment Timing Domain Interim Goodwill Impairment Charge [Member] Interim Goodwill Impairment Charge [Member] Goodwill Impairment True-Up [Member] Goodwill Impairment True-Up [Member] Goodwill Impairment Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 3 [Member] Defined Benefit Plan by Plan Asset Categories [Axis] Defined Benefit Plan by Plan Asset Categories [Axis] Plan Asset Categories [Domain] Plan Asset Categories [Domain] Cash and Cash Equivalents [Member] Cash and Cash Equivalents [Member] Guaranteed Insurance Benefit Type [Member] Guaranteed Insurance Benefit Type [Domain] Defined Benefit Plan, Fair Value of Plan Assets Defined Benefit Plan, Fair Value of Plan Assets Statements of Consolidated Comprehensive Income [Abstract] Statements of Consolidated Comprehensive Income [Abstract] Other comprehensive income (loss), net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Net unrealized gain (loss) on derivative instruments, designated as cash flow hedges Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax Net hedging loss (gain) reclassified into net income (loss) Pension plan benefit liability adjustment Total comprehensive income (loss), net of tax Comprehensive Income (Loss), Net of Tax, Attributable to Parent Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract] Schedule of Amounts Recognized in the Consolidated Balance Sheets [Domain] Schedule of Amounts Recognized in the Consolidated Balance Sheets [Line Items] Plan Assets in Other Long Term Assets Defined Benefit Plan, Assets for Plan Benefits, Noncurrent Current Portion of Pension Plan Liability in Wages and Benefits Payable Defined Benefit Pension Plan Liabilities, Current Long-term portion of pension plan liability Net Penison Plan Benefit Liability Defined Benefit Plan, Amounts Recognized in Balance Sheet Balance Sheet Related Disclosures [Abstract] Accounts Receivable, Net [Table Text Block] Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Summary of Allowance for Doubtful Accounts [Table Text Block] Tabular disclosure of the allowance for doubtful accounts from the beginning of the respective period shown to the ending period presented. The rollforward itemizes the changes during the period, for example, increases in the provision for doubtful accounts, accounts written off, and effects of changes in foreign exchange rates. [Table Text Block] Inventories [Table Text Block] Schedule of Inventory, Current [Table Text Block] Property, Plant, and Equipment [Table Text Block] Property, Plant and Equipment [Table Text Block] Depreciation Expense [Table Text Block] Depreciation Expense [Table Text Block] Summary of Depreciation Expense [Table Text Block] Beginning balanace Extended Warranties Unearned Revenue Amount as of the balance sheet date of unearned revenue for extended warranty contracts. Unearned revenue for new extended warranties Extended Warranties Unearned Revenue New Represents the aggregate increase in the deferred revenue liability for accruals related to new extended product warranties issued during the reporting period. Unearned revenue recognized Recognition of Deferred Revenue Effect of change in exchange rates Extended Product Warranty Accrual, Currency Translation Increase (Decrease) Ending balance Less: current portion of unearned revenue for extended warranty Extended Warranties Unearned Revenue Current The current portion of the amount as of the balance sheet date of unearned revenue for extended warranty contracts. Long-term unearned revenue for extended warranty within Other long-term obligations Extended Warranties Unearned Revenue Noncurrent The long-term portion of the amount as of the balance sheet date of unearned revenue for extended warranty contracts. Commitments and Contingencies [Text Block] Commitments and Contingencies Disclosure [Text Block] Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Class of Stock [Line Items] Class of Stock [Line Items] Preferred Stock, Shares Authorized Preferred Stock, Shares Authorized Preferred Stock, Shares Issued Preferred Stock, Shares Outstanding Preferred Stock, No Par Value Income Tax Examination [Table] Income Tax Examination [Table] France [Member] France - Tax Jurisdiction Germany [Member] Germany - Tax Jurisdiction Spain [Member] Spain - Tax Jurisdiction United Kingdom [Member] United Kingdom - Tax Jurisdiction [Member] Income Tax Examination [Line Items] Income Tax Examination [Line Items] Years subject to examination by major tax jurisdiction Open Tax Years by Major Tax Jurisdiction Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Table] Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Table] Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] Pension and Other Postretirement Benefit Plans, Amounts that Will be Amortized from Accumulated Other Comprehensive Income (Loss) in Next Fiscal Year Pension and Other Postretirement Benefit Plans, Amounts that Will be Amortized from Accumulated Other Comprehensive Income (Loss) in Next Fiscal Year Defined Benefit Plan, Accumulated Benefit Obligation Defined Benefit Plan, Accumulated Benefit Obligation Share Repurchase Plan [Abstract] Share Repurchase Plan [Abstract] Stock Repurchase Plan [Table] Stock Repurchase Plan [Table] Table describing the Company's stock repurchase plan. [Table] Share Repurchase [Axis] Share Repurchase [Axis] Share Repurchase [Axis] Stock Repurchase [Domain] Stock Repurchase [Domain] Stock Repurchase [Domain] Stock Repurchase Program, Authorized Amount Stock Repurchase Program, Authorized Amount Segment Information [Text Block] Segment Reporting Disclosure [Text Block] Effect of Net Investment Hedge Nonderivative on the Balance Sheet and Income Statement (Table) Derivative Instruments, Gain (Loss) by Hedging Relationship [Axis] Derivative Instruments, Gain (Loss) by Hedging Relationship [Axis] Hedging Relationship [Domain] Hedging Relationship [Domain] Net Investment Hedging [Member] Net Investment Hedging [Member] Gain (loss) recognized in OCI on derivative, (Effective Portion) [Abstract] Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net [Abstract] Before tax After tax Restructuring, Impairment, and Other Activities Disclosure [Text Block] Restructuring, Impairment, and Other Activities Disclosure [Text Block] Unamortized prepaid debt fees [Abstract] Unamortized prepaid debt fees [Abstract] Unamortized prepaid debt fees Prepaid Debt Fees Noncurrent Prepaid debt fees represent the capitalized direct costs incurred related to the issuance of debt. These costs are amortized to interest expense over the lives of the respective borrowings using the effective interest method. When debt is repaid early, or first becomes convertible the related portion of unamortized prepaid debt fees is written-off and included in interest expense. Property, Plant and Equipment, Net [Abstract] Property, plant and equipment, net [Member] Property, plant and equipment, net [Member] Machinery and equipment Machinery and Equipment, Gross Computers and purchased software Computers and purchased software Carrying amount as of the balance sheet date of computers and purchased software. Buildings, furniture, and improvements Buildings, furniture, and improvements Carrying amount as of the balance sheet date of building, furniture, an improvements. Land Land Construction in progress, including purchased equipment Construction in Progress, Gross Total cost Property, Plant and Equipment, Gross Accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Property, plant, and equipment, net Consigned Inventory [Abstract] Consigned Inventory [Abstract] Consigned Inventory [Table] Consigned Inventory [Table] Consigned Inventory is inventory held at third-party locations, however, title is maintained by the company. [Table] Consigned Inventory [Axis] Consigned Inventory [Axis] Consigned Inventory [Domain] Consigned Inventory [Member] Consigned Inventory [Domain] Consigned inventory [Line Items] Consigned inventory [Line Items] Consigned Inventory Other Inventory, Materials, Supplies and Merchandise under Consignment Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Table] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Table] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items] Dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Expected volatility Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Risk free interest rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Expected life (years) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Debt Disclosure [Abstract] Schedule of Debt [Table Text Block] Schedule of Debt [Table Text Block] Schedule of Long-Term Debt Repayments [Table Text Block] Schedule of Long-Term Debt Repayments [Table Text Block] Schedule of long-term debt repayments made during the reporting periods presented. Prepaid Debt Fees and Accrued Interest Expense [Table Text Block] Prepaid Debt Fees and Accrued Interest Expense [Table Text Block] Prepaid Debt Fees and Accrued Interest Expense associated with long-term debt. [Table Text Block] Carrying Amounts of Debt and Equity Component [Table Text Block] Carrying Amounts of Debt and Equity Component [Table Text Block] Table disclosing the face value, unamortized discount, net carrying amount of debt and equity components of the company's convertible senior subordinated notes. [Table Text Block] Schedule of Interest Expense On Liability Components [Table Text Block] ScheduleOfInterestExpenseOnLiabilityComponents [Table Text Block] Table disclosing the contractual interest coupon, amortization of the discount on the liability component and total interest expense relating to the company's convertible subordinated notes. [Table Text Block] Schedule of Maturities of Long-term Debt [Table Text Block] Schedule of Maturities of Long-term Debt [Table Text Block] Schedule of Goodwill Impairment (Table) Schedule of Goodwill Impairment [Table] Schedule of Goodwill Impairment [Table] Reporting Unit [Axis] Reporting Unit [Axis] Reporting Unit [Domain] Reporting Unit [Domain] Itron International Electricity [Member] Itron International Electricity [Member] Itron International Water [Member] Itron International Water [Member] Goodwill, Before Impairment Goodwill, Gross Goodwill, After Impairment Projected benefit obligation Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Projected Benefit Obligation Accumulated benefit obligation Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Accumulated Benefit Obligation Fair value of plan assets Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Fair Value of Plan Assets Total Company [Member] Total Company [Member] Goodwill beginning balance Goodwill acquired Goodwill, Acquired During Period Other Goodwill written off related to restructuring Goodwill written off related to the planned sale of portions of a reporting unit, whose fair value is less than its carrying value inclusive of goodwill. Effect of change in exchange rates Goodwill, Translation Adjustments Goodwill ending balance Intangible Assets, Net (Excluding Goodwill) [Abstract] Intangible Assets [Text Block] Intangible Assets Disclosure [Text Block] Long-Lived Assets Held for Sale and Long-Lived Assets Held and Used [Abstract] Long-Lived Assets Held for Sale and Long-Lived Assets Held and Used [Abstract] Schedule of Impaired Long-Lived Assets Held and Used [Table] Schedule of Impaired Long-Lived Assets Held and Used [Table] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Carrying (Reported) Amount, Fair Value Disclosure [Member] Carrying (Reported) Amount, Fair Value Disclosure [Member] Fair Value, Inputs, Level 3 [Member] Long-lived assets held for sale and long-lived assets held and used net carrying value [Axis] Long-lived assets held for sale and long-lived assets held and used net carrying value [Axis] Long-lived assets held for sale and long-lived assets held and used [Axis] Long Lived Assets Held-for-sale, Name [Domain] Long Lived Assets Held-for-sale, Name [Domain] Long-lived assets carrying value [Member] Long-lived assets carrying value [Member] Long-lived assets carrying value [Member] Impaired Long-Lived Assets Held and Used by Type [Axis] Impaired Long-Lived Assets Held and Used by Type [Axis] Impaired Long-Lived Assets Held and Used, Asset Name [Domain] Impaired Long-Lived Assets Held and Used, Asset Name [Domain] Impaired Long-Lived Assets Held and Used [Line Items] Impaired Long-Lived Assets Held and Used [Line Items] Long-lived assets held for sale (net carrying value) Assets Held-for-sale, Long Lived Long-lived assets held for sale (fair value) Assets Held-for-sale, Long Lived, Fair Value Disclosure Long-lived assets held for sale (total loss recognized) Impairment of Long-Lived Assets to be Disposed of Long-Lived Assets Held and Used Long-Lived Assets Held and Used The net carrying value and/or fair value of long-lived assets held and used, which have been impaired. Long-lived assets held and used (total loss recognized) Impairment of Long-Lived Assets Held-for-use Total Loss Recognized Asset Impairment Charges Schedule of Costs of Retirement Plans [Table Text Block] Schedule of Costs of Retirement Plans [Table Text Block] Schedule of Bonus and Profit Sharing Expenses [Table Text Block] Schedule of Bonus and Profit Sharing Expenses [Table Text Block] Schedule of Bonus and Profit Sharing Expenses [Table Text Block] Line of Credit Facility [Table] Line of Credit Facility [Table] Loss Contingencies by Nature of Contingency [Axis] Loss Contingency, Nature [Domain] Credit Facility [Member] Credit Facility dated April 18, 2007 and amended in 2009 and 2010. It includes various currency denominated terms loans and a multicurrency revolving line of credit. The Credit Facility is secured by the assets of Itron, Inc. and our domestic operating subsidiaries. Unsecured Multicurrency Revolving Lines of Credit [Member] Unsecured multicurrency revolving lines of credit with various financial institutions.[Member] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Multicurrency revolving line of credit Long-term borrowings Standby letters of credit issued and outstanding Short-term borrowings Short-term Debt Net available for additional borrowings and lines of credit Unsecured surety bonds in force Unsecured Surety Bonds In Force Unsecured surety bond in force as of the periods presented. The surety bonds represent an agreement between several parties to insure that the contracted work will be completed on time and on budget and will cover any losses incurred by poor contract performance. Stock-Based Compensation Expense and Related Tax Benefit [Table Text Block] Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block] Stock Options, Valuation Assumptions [Table Text Block] Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Employee Stock Options Activity [Table Text Block] Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] Restricted Stock Units Award Activity [Table Text Block] Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block] Nonrestricted Stock Awards Activity [Table Text Block] Schedule of Share-based Compensation, Nonemployee Director Stock Award Plan, Activity [Table Text Block] Employee Stock Purchase Plan (ESPP) Activity [Table Text Block] Schedule of Share-based Compensation, Employee Stock Purchase Plan, Activity [Table Text Block] Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Total Comprehensive Income (Loss) Net Of Tax [Table Text Block] Schedule of Comprehensive Income (Loss) [Table Text Block] Income Tax (Provision) Benefit Related To OCI [Table Text Block] Schedule Of Income Tax (Provision) Benefit Related To OCI [Table Text Block] Schedule Of Income Tax (Provision) Benefit Related To OCI [Table Text Block] Summary of the Warranty Accrual Account Activity [Table] Summary of the Warranty Accrual Account Activity [Table] Summary of the Warranty Accrual Account Activity [Table] WarrantiesActivity [Line Items] WarrantiesActivity [Line Items] Beginning balance Warranty Accrual Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated warranty claims based on historical and projected product performance trends and costs. New product warranties Standard Product Warranty Accrual, Warranties Issued Other changes/adjustments to warranties Warranty Changes and Adjustments Represents the aggregate Increase or Decrease in the liability during the reporting period for accruals related to preexisting product warranties (including adjustments for changes in estimates). Reclassificaiton from other current liabilities Reclassificaiton from other current liabilities Reclassificaiton from other current liabilities to warranty Claims activity Claims activity Represents the aggregate decrease in the liability related to payments to satisfy claims for product warranties. Effect of change in exchange rates Effect of change in exchange rates Warranty Total Increase or Decrease in the warranty liability due to currency translation. Ending balance Less: current portion of warranty Long-term warranty Warranty Noncurrent Carrying value as of the balance sheet date of obligations incurred through that date and due after one year for estimated warranty claims based on historical and projected product performance trends and costs. Income Tax Disclosure [Abstract] Income Taxes [Text Block] Income Tax Disclosure [Text Block] Schedule of Interest Expense On Liability Components [Abstract] Schedule of Interest Expense On Liability Components [Abstract] Debt Instrument, Name [Domain] Contractual interest coupon Interest Expense Related To Contractual Interest Coupon [Abstract] The amount of contractual interest expense on convertible senior subordinated notes recorded in the Statement of Operations during the period. [Abstract] Amortization of the discount on the liability component Total interest expense on convertible notes Interest Expense, Debt Restructuring Additional Information [Abstract] Restructuring Additional Information [Abstract] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Expected number of manufacturing facilities that will be closed or sold due to restructuring. [Member] Expected number of manufacturing facilities that will be closed or sold due to restructuring. [Member] Expected number of manufacturing facilities that will be closed or sold due to restructuring. [Member] Global manufacturing locations [Member] Global manufacturing locations [Member] Global manufacturing locations to be impacted by restructuring. [Member] Asset impairment [Axis] Asset impairment [Axis] Asset impairment [Axis] Expected Cost Savings by the End of 2013 [Member] Expected Annulized Cost Savings by the End of 2013 [Member] Expected Annulized Cost Savings by the End of 2013 [Member] Expected Cost Savings in 2012 [Member] Expected Cost Savings in 2012 [Member] Expected Cost Savings in 2012 [Member] Impairment of Property, Plant, and Equipment [Axis] Impaired Property, Plant, and Equipment [Axis] Impaired Property, Plant, and Equipment [Axis] Impairment of Property, Plant, and Equipment [Domain] Impairment of Property, Plant, and Equipment [Domain] Impairment of Property, Plant, and Equipment [Domain] Land and Building [Member] Land and Building [Member] Machinery and Equipment, Computers and Software [Member] Machinery and Equipment, Computers and Software [Member] Machinery and Equipment, Computers and Software [Member] Impairment of Goodwill [Member] Impairment of Goodwill [Member] Percentage Of Manufacturing Facilities Impacted By Restructuring Percentage Of Manufacturing Facilities Impacted By Restructuring Percentage Of Manufacturing Facilities Impacted By Restructuring Total number of manufacturing locations Total number of manufacturing locations Number of manufacturing locations impacted by either restructuirng and/or impairments. Number Of Manufacturing Locations Impacted By Restructuring Number Of Manufacturing Locations Impacted By Restructuring Number Of Manufacturing Locations Impacted By Restructuring Restructuring and related costs, expected percentage of positions eliminated Restructuring and related costs, expected percentage of positions eliminated Restructuring and related costs, expected percentage of positions to be eliminated. Assets Held-for-sale, Property, Plant and Equipment Assets Held-for-sale, Property, Plant and Equipment Goodwill transferred to other current assets Goodwill transferred to other current assets Goodwill transferred to other current assets related to restructuring. Impairment of Long-Lived Assets Held-for-use Impairment of Long-Lived Assets to be Disposed of Restructuring Reserve, Current Restructuring Reserve, Current Restructuring Reserve, Noncurrent Restructuring Reserve, Noncurrent Restructuring Expected Cost Savings Restructuring Expected Cost Savings Restructuring Expected Cost Savings. Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract] Fair Values of Financial Instruments [Text Block] Fair Value Disclosures [Text Block] Schedule of Debt [Abstract] Schedule of Debt [Abstract] Schedule of Debt [Table] Convertible Subordinated Debt [Member] Debt Current portion of long term debt Summary of Valuation Allowance [Table Text Block] Summary of Valuation Allowance [Table Text Block] Net actuarial (gain) loss Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, before Tax Settlement gain (loss) Other Comprehensive Income (Loss), Finalization of Pension and Non-Pension Postretirement Plan Valuation, before Tax Plan asset (gain) loss Other Comprehensive income (loss), plan asset (gain) loss, before tax Pretax change in the value of the plan assets resulting from experience different from that assumed that has not been recognized in net periodic benefit cost. Amortization of net actuarial gain (loss) Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, before Tax Amortization of prior service cost Other Comprehensive Income (Loss), Amortization, Pension and Other Postretirement Benefit Plans, Net Prior Service Cost (Credit) Recognized in Net Periodic Benefit Cost, before Tax Other Other Amounts Recognized in Other Comprehensive Income, before tax Amounts recognized in other comprehensive income (but not yet recognized in net periodic benefit cost) arising during the period. Other comprehensive (income) loss Warranty Expense Warranty Expense The expense charged against earnings for the period pertaining to warranties on the entity's goods and services granted to customers. Note 11: Income Taxes [Abstract] Note 11: Income Taxes [Abstract] Excess tax benefits from employee stock plan exercises Excess tax benefits from employee stock plan exercises The amount of gross income tax return deduction for employee stock plan exercises in excess of the compensation cost recorded for those instruments recognized for financial reporting purposes, which is available as of the balance sheet date to reduce future cash taxes payable and increase our common stock by amount of the tax effect of this gross deduction amount. Tax effect of excess benefits from employee stock plan exercises, which will increase our common stock when it reduces our cash taxes payable, and which is not recognized in our deferred tax assets Tax effect of excess benefits from employee stock plan exercises, which will increase our common stock when it reduces our cash taxes payable, and which is not recognized in our deferred tax assets Tax benefit associated with employee stock plan exercises, which is not recognized as a part of deferred tax assets as of the balance sheet date, and which will increase the common stock balance when such tax benefit reduces cash taxes payable. The tax benefit results from the deduction by the entity on its tax return for an award of stock that exceeds the cumulative compensation cost for common stock or preferred stock recognized for financial reporting. Undistributed foreign earnings for which we do not provide US deferred taxes because the foreign investments are considered permanent in duration Deferred Tax Liability Not Recognized, Cumulative Amount of Temporary Difference Expected payment in next twelve months for unrecognized tax benefit Expected payment in next twelve months for unrecognized tax benefit The amount Itron expects to pay over the next twelve months in income taxes, interest, and penalties related to unrecognized tax benefit. Amount of unrecognized tax benefits that may reasonably possibly decrease within 12 months Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities Excluded from Computation of Earnings Per Share, by Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Stock-based awards excluded from diluted EPS calculation (antidilutive) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Schedule of Revenues from External Customers and Long-Lived Assets [Table] Segment, Geographical [Domain] United States [Member] United States [Member] United States [Member] Outside United States [Member] Outside United States [Member] Outside United States [Member] Revenues from External Customers and Long-Lived Assets [Line Items] Loss Contingencies by Nature of Contingency [Axis] Loss Contingency, Nature [Domain] Vendor Supplied Component Warranty Expense Type [Member] Vendor Supplied Component Warranty Expense Type [Member] Vendor Supplied Component Warranty Expense Type [Member] Arbitration claims in Sweden [Member] Arbitration claims in Sweden [Member] Warranty charge due to arbitration claims in Sweden [Member] Credit Facility [Member] Corrective actions for specific customers warranty charge type [Member] Corrective actions for specific customers warranty charge type [Member] Warranty charge due to corrective actions for specific customers [Member] A specific batch of C&I meters that were manufactured with a misaligned automated solder-feeder [Member] A specific batch of C&I meters that were manufactured with a misaligned automated solder-feeder [Member] Warranty charge due to a specific batch of C&I meters that were manufactured with a misaligned automated solder-feeder [Member] Reduction in YTD Q3 2010 revenue due to restatement Restatement of Prior Year Income, Gross Impact of Restatement on Earnings Per Share, Diluted Impact of Restatement on Earnings Per Share, Diluted Recovery Associated With Settlement Of Product Claims Recovery Associated With Settlement Of Product Claims Recovery from a third party associated with settlement of product claims. Warranty charge Warranty charge This tag is used to for specific cases of warranty charges disclosed. This is a subset of the tag itri_WarrantyChangesAndAdjustments, which is defined as "Represents the aggregate Increase or Decrease in the liability during the reporting period for accruals related to preexisting product warranties (including adjustments for changes in estimates)." Schedule of Changes in Benefit Obligation and Fair Value of Plan Assets [Table Text Block] Schedule of Changes in Benefit Obligation and Fair Value of Plan Assets [Table Text Block] Tabular disclosure of the change in the benefit obligation of pension plans from the beginning to the end of the period, showing separately, if applicable, the effects of the following: service cost, interest cost, contributions by plan participants, actuarial gains and losses, foreign currency exchange rate changes, benefits paid, plan amendments, business combinations, divestitures, curtailments, settlements, and special and contractual termination benefits. Tabular disclosure of the reconciliation of beginning and ending balances of the fair value of plan assets of pension plans showing separately, if applicable, the effects during the period attributable to each of the following: actual return on plan assets, foreign currency exchange rate changes, contributions by the employer, contributions by plan participants, benefits paid, business combinations, divestitures, and settlements. [Table Text Block] Schedule of Amounts Recognized in the Consolidated Balance Sheets [Table Text Block] Schedule of Amounts Recognized in Balance Sheet [Table Text Block] Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized over Next Fiscal Year [Table Text Block] Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized over Next Fiscal Year [Table Text Block] Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block] Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block] Schedule of Net Periodic Pension Benefit Costs [Table Text Block] Schedule of Net Benefit Costs [Table Text Block] Schedule of Assumptions Used [Table Text Block] Schedule of Assumptions Used [Table Text Block] Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block] Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block] Fair values of the assets held by the postretirement benefits plans by asset category [Table Text Block] Fair values of the assets held by the postretirement benefits plans by asset category [Table Text Block] Fair values of the assets held by the postretirement benefits plans by asset category [Table Text Block] Schedule of Expected Benefit Payments [Table Text Block] Schedule of Expected Benefit Payments [Table Text Block] Deferred Revenue [Abstract] Deferred Revenue Arrangement, by Type [Table] Deferred Revenue Arrangement, by Type [Table] Deferred Revenue Arrangement Type [Axis] Deferred Revenue Arrangement Type [Axis] Deferred Revenue Arrangement Type [Domain] Deferred Revenue Arrangement Type [Domain] Deferred Revenue Arrangement [Line Items] Deferred Revenue Arrangement [Line Items] Unearned revenue Deferred Revenue Deferred costs Deferred Costs Impairment in Value of Asset [Member] Impairment in Value of Asset [Member] Unallocated Amount to Segment [Member] Total Expected Cost Restructuring and Related Cost, Expected Cost Cost Recognized Restructuring Costs to be Recognized Restructuring costs to be recognized Amount represents the remaining restructuring costs to be recognized as of the end of the reporting period. Income Tax Provision [Table Text Block] Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Income Tax Rate Reconciliation [Table Text Block] Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Deferred Tax Assets and Liabilities [Table Text Block] Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Unrecognized Tax Benefits Related To Uncertain Tax Positions [Table Text Block] Summary of Income Tax Contingencies [Table Text Block] Net unrealized gain (loss) on hedging instruments at beginning Net unrealized loss on hedging instruments Net accumulated unrealized gain (loss) of hedging instruments, net of tax, included in Accumulated Other Comprehensive Income on the balance sheet. Unrealized gain (loss) on derivative instruments Unrealized gain (loss) on a nonderivative net investment hedging instrument Realized (gains) losses reclassified into net income (loss) Net unrealized gain (loss) on hedging instruments at end Pension and Other Postretirement Benefit Contributions [Abstract] Schedule of Defined Benefit Plans Disclosures [Table] Employer Contributions [Domain] Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan, Contributions by Employer Defined Benefit Plan, Contributions by Employer Estimated Future Employer Contributions in Current Fiscal Year Defined Benefit Plan, Estimated Future Employer Contributions in Current Fiscal Year Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Designated as Hedging Instrument [Member] Designated as Hedging Instrument [Member] Not Designated as Hedging Instrument [Member] Not Designated as Hedging Instrument [Member] Derivatives, Fair Value, by Balance Sheet Location [Axis] Derivatives, Fair Value, by Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Other Current Assets [Member] Other Current Assets [Member] Other Current Liabilities [Member] Other Current Liabilities [Member] Other Long Term Obligations [Member] Other Long Term Obligations [Member] Current Portion of Debt [Member] Current Portion of Debt [Member] Long-term Debt [Member] Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Asset Derivatives [Abstract] Derivative Assets [Abstract] Foreign exchange forward contracts asset Liability Derivatives [Abstract] Derivative Liabilities [Abstract] Interest rate swap contracts Foreign exchange forward contracts liability Total liability derivatives Derivative Liability, Fair Value, Gross Liability Unrestricted Stock Award [Member] Unrestricted stock awards issued to the Board of Directors as part of their compensation. Shares of unrestricted stock issued Weighted average grant date fair value Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Table] Class of Stock [Axis] Class of Stock [Domain] Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] Incremental Common Shares Attributable to Conversion of Debt Securities Debt instrument, convertible, conversion price Debt Instrument, Convertible, Conversion Price Number of Fiscal Quarters During Which the Average Closing Prices of Our Common Stock Exceeded the Conversion Price [Abstract] Number of Fiscal Quarters During Which the Average Closing Prices of Our Common Stock Exceeded the Conversion Price [Abstract] Income Tax Rate Reconciliation [Table] Income Tax Rate Reconciliation [Table] Reconciliation of Consolidated Actual Tax Rate to U.S. Federal Statutory Rate [Table] US Federal Effective Tax Rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate Income (loss) before income taxes Income (loss) before income taxes [Abstract] Income (loss) before income taxes [Abstract] Domestic Income (Loss) from Continuing Operations before Income Taxes, Domestic Foreign Income (Loss) from Continuing Operations before Income Taxes, Foreign Total income (loss) before income taxes Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Expected federal income tax provision (benefit) Income Tax Reconciliation, Income Tax Expense (Benefit), at Federal Statutory Income Tax Rate Asset impairments Income Tax Reconciliation, Nondeductible Expense, Impairment Losses Change in valuation allowance Income Tax Reconciliation, Change in Deferred Tax Assets Valuation Allowance Stock-based compensation Income Tax Reconciliation, Nondeductible Expense, Share-based Compensation Cost Foreign earnings Income Tax Reconciliation, Foreign Income Tax Rate Differential Tax credits Income Tax Reconciliation, Tax Credits Uncertain tax positions, including interest and penalties Income Tax Reconciliation, Tax Contingencies Change in tax rates Income Tax Reconciliation, Change in Enacted Tax Rate U.S. tax provision (benefit) of foreign branch income (loss) Effective Income Tax Rate Reconciliation, Foreign Branch Income The difference between the actual income tax provision and the expected income tax provision based on domestic federal income tax rate attributable to U.S. federal income tax levied on the income of the company's foreign branches. State income tax provision (benefit), net of federal effect Income Tax Reconciliation, State and Local Income Taxes U.S. tax provision on foreign earnings Income Tax Reconciliation, Repatriation of Foreign Earnings Other, net Income Tax Reconciliation, Other Adjustments Accounts Receivable, Net [Abstract] Accounts Receivable, Net [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Accounts Receivable, Net [Axis] Accounts, Notes, Loans and Financing Receivable by Receivable Type [Axis] Accounts Receivable, Net [Domain] Receivable Type [Domain] Accounts Receivable [Member] Accounts Receivable, Net (Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Trade receivables, net of allowance Trade Receivables, Net of Allowances Trade receivables for amounts due from customers or clients, within one year of the balance sheet date for goods or services that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. Unbilled receivables Unbilled receivables The amount due for services rendered or products shipped and recognized as revenue in conformity with revenue recognition criteria, but not yet billed. Total accounts receivable, net Allowance for doubtful accounts Certain Balance Sheet Components [Text Block] Supplemental Balance Sheet Disclosures [Text Block] IBNR accrual Liability for Unpaid Claims and Claims Adjustment Expense, Reported and Incurred but Not Reported (IBNR) Claims Schedule of Long-Term Debt Repayments [Abstract] Schedule of Long-Term Debt Repayments [Abstract] Secured Debt [Member] Secured Debt [Member] Senior Subordinated Notes [Member] Finite-Lived Intangible Assets [Abstract] Schedule of Intangible Assets by Major Class [Table Text Block] Schedule of Finite-Lived Intangible Assets by Major Class [Table Text Block] Summary of Intangible Asset Account Activity [Table Text Block] SummaryOfIntangibleAssetAccountActivity [Table Text Block] Summary schedule of intangible asset activity for the period (Table Text Block). Schedule of Intangible Assets, Future Amortization Expense [Table Text Block] Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Long-Lived Assets Held-for-Sale and Held and Use [Abstract] Long-Lived Assets Held-for-Sale and Held and Use [Abstract] Details of Impairment of Long-Lived Assets Held and Used by Asset [Table Text Block] Long-Lived Assets Held and Used and Long-Lived Assets Held-For-Sale [Table Text Block] Tabular disclosure for impairment of long-lived assets held and used and long-lived assets held for sale. [Table Text Block] Share-based Compensation, Allocation and Classification in Financial Statements [Abstract] Stock-Based Compensation [Text Block] Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Senior Subordinated Notes [Abstract] Senior Subordinated Notes [Abstract] Subordinated Borrowing, Interest Rate Subordinated Borrowing, Interest Rate Gains (Losses) on Extinguishment of Debt Gains (Losses) on Extinguishment of Debt Unamortized debt discount included in loss on extinguishment Unamortized debt discount included in loss on extinguishment The remaining unamortized debt discount associated with debt repaid and included in the loss on extinguishment. Debt [Text Block] Debt Disclosure [Text Block] Change in Benefit Obligation and Plan Assets [Abstract] Change in Benefit Obligation and Plan Assets [Abstract] Defined Benefit Obligation, Benefits Paid [Member] Defined Benefit Obligation, Benefits Paid [Member] Defined Benefit Obligation, Benefits Paid [Member] Fair Value of Plan Assets, Benefits Paid [Member] Fair Value of Plan Assets, Benefits Paid [Member] Fair Value of Plan Assets, Benefits Paid [Member] Benefit obligation at January 1, Defined Benefit Plan, Benefit Obligation Actuarial loss Defined Benefit Plan, Actuarial Net (Gains) Losses Benefits paid Defined Benefit Plan, Benefits Paid Foreign currency exchange rate changes Defined Benefit Plan, Foreign Currency Exchange Rate Changes, Benefit Obligation Other Defined Benefit Plan, Other Costs Benefit obligation at December 31, Fair Value of Plan Assets at January 1, Actual return on plan assets Defined Benefit Plan, Actual Return on Plan Assets Company contributions Benefits paid Foreign currency exchange rate changes Defined Benefit Plan, Foreign Currency Exchange Rate Changes, Plan Assets Fair Value of Plan Assets at December 31, Defined Benefit Plan, Amounts Recognized in Balance Sheet Document And Entity Information Document And Entity Information [Abstract] Entities [Table] Entities [Table] Legal Entity [Axis] Entity [Domain] Document and Entity Information [Line Items] Entity Information [Line Items] Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Voluntary Filers Entity Current Reporting Status Entity Current Reporting Status Trading Symbol Trading Symbol Entity Public Float Entity Public Float Balance Sheet Parenthetical [Abstract] Balance Sheet Parenthetical [Abstract] Common stock, par value Common Stock, No Par Value Common stock, shares authorized Common Stock, Shares Authorized Common stock, shares issued Common Stock, Shares, Issued Common stock, shares outstanding Preferred stock, par value Preferred stock, shares authorized Preferred stock, shares issued Preferred stock, shares outstanding