Equity Method Investments and Joint Ventures [Abstract]
Investments
Investments and Other Noncurrent Assets [Text Block]
Investments
Equity Method Investments [Table Text Block]
Disclosure of Compensation Related Costs, Share-based Payments [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]
Award Type [Axis]
Award Type [Axis]
Award Type [Domain]
Equity Award [Domain]
Employee stock option [Member]
Employee Stock Option [Member]
Restricted shares [Member]
Restricted Stock [Member]
Plan Name [Axis]
Plan Name [Axis]
Plan Name [Domain]
Plan Name [Domain]
2007 Plan [Member]
Two Thousand Seven Equity Incentive Plan [Member]
Range [Axis]
Range [Axis]
Range [Domain]
Range [Domain]
Minimum [Member]
Minimum [Member]
Maximum [Member]
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense
Allocated Share-based Compensation Expense
Number of shares authorized (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized
Award vesting period
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period
Number of shares available for grant (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant
Weighted Average Exercise Price Per Share average contractual term (years)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term
Contractual term
Share Based Compensation Arrangement by Share Based Payment Award, Contractual Term
Share Based Compensation Arrangement by Share Based Payment Award, Contractual Term
Unrecognized compensation expense from Restricted Stock
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized
Weighted-average period of recognition of unrecognized compensation expense
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition
Restricted shares vesting percentage
Restricted Shares Vesting Percentage
The annual rate at which restricted share awards vest to employees.
Vested in period (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period
Restructuring and Related Activities [Abstract]
Reduction in Force
Restructuring and Related Activities Disclosure [Text Block]
Fair Value Disclosures [Abstract]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table]
Fair Value Measurements, Recurring and Nonrecurring [Table]
Fair Value by Measurement Frequency [Axis]
Measurement Frequency [Axis]
Fair Value, Measurement Frequency [Domain]
Fair Value, Measurement Frequency [Domain]
Fair Value, Measurements, Recurring [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value, Hierarchy [Axis]
Fair Value, Hierarchy [Axis]
Fair Value, Measurements, Fair Value Hierarchy [Domain]
Fair Value Hierarchy [Domain]
Fair Value, Inputs, Level 1 [Member]
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value assets measured on recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Cash equivalent money market funds
Cash and Cash Equivalents, Fair Value Disclosure
Restricted cash money market funds
Restricted Cash Fair Value Disclosure
Restricted Cash Fair Value Disclosure
Accounts Receivable, Trade [Abstract]
Accounts Receivable, Trade [Abstract]
Accounts Receivable, Trade
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]
Segment Reporting [Abstract]
Business Segments, Customer Concentrations and Geographic Information
Segment Reporting Disclosure [Text Block]
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Number of Shares Nonvested beginning balance
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Number of Shares Awards granted
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period
Number of Shares Awards vested
Number of Shares Awards forfeited
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Number of Shares Nonvested ending balance
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Weighted Average Grant-Date Fair Value Nonvested beginning balance (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Weighted Average Grant-Date Fair Value Awards granted (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value
Weighted Average Grant-Date Fair Value Awards vested (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value
Weighted Average Grant-Date Fair Value Awards forfeited (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value
Weighted Average Grant-Date Fair Value Nonvested ending balance (in dollars per share)
Revenue from External Customers by Products and Services [Table Text Block]
Revenue from External Customers by Products and Services [Table Text Block]
Net sales by country, and property, plant and equipment by physical location
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
Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block]
Commitments and Contingencies Disclosure [Abstract]
Unrecorded Unconditional Purchase Obligation [Table]
Unrecorded Unconditional Purchase Obligation [Table]
Unrecorded Unconditional Purchase Obligation by Category of Item Purchased [Axis]
Unrecorded Unconditional Purchase Obligation by Category of Item Purchased [Axis]
Unconditional Purchase Obligation, Category of Goods or Services Acquired [Domain]
Unconditional Purchase Obligation, Category of Goods or Services Acquired [Domain]
Unrecorded Unconditional Purchase Obligation [Line Items]
Unrecorded Unconditional Purchase Obligation [Line Items]
2015
Operating Leases, Future Minimum Payments Due, Next Twelve Months
2016
Operating Leases, Future Minimum Payments, Due in Two Years
2017
Operating Leases, Future Minimum Payments, Due in Three Years
2018
Operating Leases, Future Minimum Payments, Due in Four Years
2019
Operating Leases, Future Minimum Payments, Due in Five Years
Thereafter
Operating Leases, Future Minimum Payments, Due Thereafter
Total
Operating Leases, Future Minimum Payments Due
Operating Leases, Rent Expense, Net
Operating Leases, Rent Expense, Net
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Other Comprehensive Income (Loss) [Table]
Equity Components [Axis]
Equity Components [Axis]
Equity Component [Domain]
Equity Component [Domain]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Description of Business and Summary of Significant Accounting Policies [Abstract]
Description of Business and Summary of Significant Accounting Policies [Abstract]
Schedule of Significant Accounting Policies [Table]
Schedule of Significant Accounting Policies [Table]
Schedule of Significant Accounting Policies [Table]
Equity Method Investee, Name [Axis]
Investment, Name [Axis]
Equity Method Investee, Name [Domain]
Investment, Name [Domain]
J Devices [Member]
J Devices [Member]
J Devices [Member]
Property, Plant and Equipment by Type [Axis]
Property, Plant and Equipment, Type [Axis]
Property, Plant and Equipment, Type [Domain]
Property, Plant and Equipment, Type [Domain]
Land use rights [Member]
Use Rights [Member]
Building and Building Improvements [Member]
Building and Building Improvements [Member]
Machinery and Equipment [Member]
Machinery and Equipment [Member]
Software and Computer Equipment [Member]
Software and Computer Equipment [Member]
Software and Computer Equipment [Member]
Furniture and Fixtures [Member]
Furniture and Fixtures [Member]
Summary of Significant Accounting Policies [Line Items]
Summary of Significant Accounting Policies [Line Items]
Summary of Significant Accounting Policies [Line Items]
Useful Life, Average
Property, Plant and Equipment, Useful Life
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]
Schedule of Defined Benefit Plans Disclosures [Table]
Schedule of Defined Benefit Plans Disclosures [Table]
Defined Benefit Plans and Other Postretirement Benefit Plans [Axis]
Defined Benefit Plans and Other Postretirement Benefit Plans [Domain]
Defined Benefit Plan and Other Postretirement Benefit Plan [Domain]
Foreign Postretirement Benefit Plan [Member]
Foreign Postretirement Benefit Plan [Member]
Philippine Subsidiaries [Member]
Philippine Subsidiaries [Member]
Philippine Subsidiaries [Member]
Defined Benefit Plan by Plan Asset Categories [Axis]
Defined Benefit Plan, Asset Categories [Axis]
Plan Asset Categories [Domain]
Plan Asset Categories [Domain]
Debt Securities [Member]
Debt Securities [Member]
Equity Securities [Member]
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations
Defined Benefit Plan, Target Plan Asset Allocations
Amount of employer and related party securities included in plan assets
Defined Benefit Plan, Amount of Employer and Related Party Securities Included in Plan Assets
Defined Benefit Plan, Expected Return on Plan Assets
Defined Benefit Plan, Expected Return on Plan Assets
Defined Benefit Plan, Net Periodic Benefit Cost
Defined Benefit Plan, Net Periodic Benefit Cost
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Curtailments
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Curtailments
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements
Pension Expense
Pension Expense
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation at beginning of year
Defined Benefit Plan, Benefit Obligation
Service cost
Defined Benefit Plan, Service Cost
Interest cost
Defined Benefit Plan, Interest Cost
Benefits paid
Defined Benefit Plan, Benefits Paid
Actuarial losses (gains)
Defined Benefit Plan, Actuarial Gain (Loss)
Defined Benefit Plan, Business Combinations and Acquisitions, Benefit Obligation
Defined Benefit Plan, Business Combinations and Acquisitions, Benefit Obligation
Defined Benefit Plan, Divestitures, Benefit Obligation
Defined Benefit Plan, Divestitures, Benefit Obligation
Effects of curtailment
Defined Benefit Plan, Curtailments
Settlement
Defined Benefit Plan, Settlements, Benefit Obligation
Foreign exchange gain
Defined Benefit Plan, Foreign Currency Exchange Rate Gain (Loss)
Projected benefit obligation at end of year
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year
Defined Benefit Plan, Fair Value of Plan Assets
Actual gain on plan assets
Defined Benefit Plan, Actual Return on Plan Assets
Employer contributions
Defined Benefit Plan, Contributions by Employer
Settlement
Defined Benefit Plan, Settlements, Plan Assets
Foreign exchange loss
Defined Benefit Plan, Foreign Currency Exchange Rate Changes, Plan Assets
Fair value of plan assets at end of year
Funded status of the Plans at end of year
Defined Benefit Plan, Funded Status of Plan
Defined Benefit Plan, Assets for Plan Benefits [Abstract]
Defined Benefit Plan, Assets for Plan Benefits [Abstract]
Accrued benefit liability (included in pension and severance obligations)
Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent
Accumulated benefit obligation
Defined Benefit Plan, Accumulated Benefit Obligation
Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets [Abstract]
Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets [Abstract]
Aggregate projected benefit obligation
Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets, Aggregate Benefit Obligation
Aggregate fair value of plan assets
Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets, Aggregate Fair Value of Plan Assets
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract]
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract]
Aggregate accumulated benefit obligation
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Accumulated Benefit Obligation
Aggregate 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
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate for determining net periodic pension cost
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate
Discount rate for determining benefit obligations at year end
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate
Rate of compensation increase for determining net periodic pension cost
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase
Rate of compensation increase for determining benefit obligations at year end
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase
Expected rate of return on plan assets for determining net periodic pension cost
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets
Inventory Disclosure [Abstract]
Inventories
Inventory Disclosure [Text Block]
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract]
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract]
Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year
Defined Benefit Plans, Estimated Future Employer Contributions in Next Fiscal Year
2013
Defined Benefit Plan, Expected Future Benefit Payments, Next Twelve Months
2014
Defined Benefit Plan, Expected Future Benefit Payments, Year Two
2015
Defined Benefit Plan, Expected Future Benefit Payments, Year Three
2016
Defined Benefit Plan, Expected Future Benefit Payments, Year Four
2017
Defined Benefit Plan, Expected Future Benefit Payments, Year Five
2018 to 2022
Defined Benefit Plan, Expected Future Benefit Payments, Five Fiscal Years Thereafter
Income Tax Disclosure [Abstract]
Operating Loss Carryforwards [Table]
Operating Loss Carryforwards [Table]
Income Tax Authority [Axis]
Income Tax Authority [Axis]
Income Tax Authority [Domain]
Income Tax Authority [Domain]
United States [Member]
Internal Revenue Service (IRS) [Member]
State Income Taxes [Member]
State and Local Jurisdiction [Member]
Non-U.S. [Member]
Foreign Tax Authority [Member]
U.S. [Member]
Domestic Tax Authority [Member]
KOREA, REPUBLIC OF
KOREA, REPUBLIC OF
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards [Line Items]
Loss Carryforwards and other details [Abstract]
Income Taxes Textuals [Abstract]
Income Taxes Textuals [Abstract]
Operating loss carryforwards
Operating Loss Carryforwards
Operating loss carryforwards, expiration dates
Operating Loss Carryforwards, Expiration Date
Tax Credit Carryforward, Amount
Tax Credit Carryforward, Amount
Undistributed Earnings of Foreign Subsidiaries
Repatriation Of Earnings Estimated Tax Impact
The estimated tax impact (foreign withholding and federal income tax) that would be generated if undistributed earnings as of the balance sheet date were to be repatriated to the domestic country.
Loss Contingencies [Table]
Loss Contingencies [Table]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Domain]
Long-term Debt, Type [Domain]
Line of Credit [Member]
Line of Credit [Member]
Debt Instrument [Axis]
Debt Instrument [Axis]
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
$200 million revolving credit facility, LIBOR plus 1.25%-1.75%, due December 2019 (1)
Senior Secured Revolving Credit Facility due December 2019 [Member]
Senior Secured Revolving Credit Facility due December 2019 [Member]
Credit Facility [Axis]
Credit Facility [Axis]
Credit Facility [Domain]
Credit Facility [Domain]
Revolving Credit Facility [Member]
Revolving Credit Facility [Member]
Letter of Credit [Member]
Letter of Credit [Member]
Income Statement Location [Axis]
Income Statement Location [Axis]
Income Statement Location [Domain]
Income Statement Location [Domain]
Cost of Sales [Member]
Cost of Sales [Member]
Interest Expense [Member]
Interest Expense [Member]
Litigation Case [Axis]
Litigation Case [Axis]
Litigation Case Type [Domain]
Litigation Case [Domain]
Tessera Inc Legal Proceedings [Member]
Tessera Inc Legal Proceedings [Member]
Tessera inc legal proceedings.
Subsequent Event Type [Axis]
Subsequent Event Type [Axis]
Subsequent Event Type [Domain]
Subsequent Event Type [Domain]
Subsequent Event [Member]
Subsequent Event [Member]
Loss Contingencies [Line Items]
Loss Contingencies [Line Items]
Other Commitment
Other Commitment
Credit facility, borrowing capacity
Line of Credit Facility, Maximum Borrowing Capacity
Available letter of credit subfacility utilized
Letters of Credit Outstanding, Amount
Letter of credit sublimit facility remaining
Line of Credit Facility, Remaining Borrowing Capacity
Loss Contingency, Damages Awarded, Value
Loss Contingency, Damages Awarded, Value
Loss Contingency, Interest Rate Post-Judgment
Loss Contingency, Interest Rate Post-Judgment
Loss Contingency, Interest Rate After Date of Award
Litigation Settlement, Amount
Litigation Settlement, Amount
Number of Quarterly Settlement Payments
Number of Quarterly Settlement Payments
Number of Quarterly Settlement Payments
Litigation Settlement, Expense
Litigation Settlement, Expense
Liabilities
Estimated Litigation Liability
Litigation Settlement Interest
Litigation Settlement Interest
Statement of Cash Flows [Abstract]
Statement [Table]
Statement [Table]
Statement, Scenario [Axis]
Scenario [Axis]
Scenario, Unspecified [Domain]
Scenario, Unspecified [Domain]
Statement [Line Items]
Statement [Line Items]
Cash flows from operating activities:
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net income
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Adjustments to reconcile net income to net cash provided by operating activities:
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Depreciation and amortization
Depreciation, Depletion and Amortization
Amortization of deferred debt issuance costs and premiums
Amortization of Financing Costs and Discounts
Deferred income taxes
Deferred Income Tax Expense (Benefit)
Equity in earnings of unconsolidated affiliate
Income (Loss) from Equity Method Investments
Loss on debt retirement
Gains (Losses) on Extinguishment of Debt
(Gain) loss on disposal of fixed assets, net
Gain (Loss) on Disposition of Property Plant Equipment
Share-based compensation
Share-based Compensation
Gain on sale of subsidiary to J-Devices
Gain (Loss) on Disposition of Business
Other, net
Other Noncash Income (Expense)
Changes in assets and liabilities:
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 assets
Increase (Decrease) in Other Noncurrent Assets
Trade accounts payable
Increase (Decrease) in Accounts Payable
Accrued expenses
Increase (Decrease) in Accrued Liabilities
Other non-current liabilities
Increase (Decrease) in Other Operating Liabilities
Net cash provided by operating activities
Net Cash Provided by (Used in) Operating Activities
Cash flows from investing activities:
Net Cash Provided by (Used in) Investing Activities [Abstract]
Payments for property, plant and equipment
Payments to Acquire Property, Plant, and Equipment
Proceeds from sale of property, plant and equipment
Proceeds from Sale of Other Property, Plant, and Equipment
Acquisition of business, net of cash acquired
Payments to Acquire Businesses, Net of Cash Acquired
Cash transferred on sale of subsidiary to J-Devices, net of proceeds
Proceeds from Divestiture of Businesses, Net of Cash Divested
Payments from J-Devices
Financing lease payment from equity method investee
Cash proceeds received during the period for direct financing lease to equity method investment.
Investment in J-Devices
Payments to Acquire Businesses and Interest in Affiliates
Purchase of short-term investment
Payments to Acquire Short-term Investments
Proceeds from short-term investment
Proceeds from Sale of Short-term Investments
Other investing activities
Payments for (Proceeds from) Other Investing Activities
Net cash used in investing activities
Net Cash Provided by (Used in) Investing Activities
Cash flows from financing activities:
Net Cash Provided by (Used in) Financing Activities [Abstract]
Borrowings under revolving credit facilities
Proceeds from Lines of Credit
Payments under revolving credit facilities
Repayments of Lines of Credit
Borrowings under short-term debt
Proceeds from Short-term Debt
Payments of short-term debt
Repayments of Short-term Debt
Proceeds from issuance of long-term debt
Proceeds from Issuance of Long-term Debt
Payments of long-term debt
Repayments of Long-term Debt
Payments for debt issuance costs
Payments of Debt Issuance Costs
Payments for retirement of debt
Payments of Debt Exchange Costs
Payments of Debt Exchange Costs
Payment of deferred consideration for an acquisition
Final Installment Payment for Previous Acquisition
The cash outflow attributable to a prior period acquisition whereby a portion of the fixed consideration was deferred to the current period.
Payments for repurchase of common stock
Payments for Repurchase of Common Stock
Proceeds from issuance of stock through share-based compensation plans
Proceeds from Stock Options Exercised
Payments of tax withholding for restricted shares
Payments Related to Tax Withholding for Share-based Compensation
Net cash (used in) provided by financing activities
Net Cash Provided by (Used in) Financing Activities
Effect of exchange rate fluctuations on cash and cash equivalents
Effect of Exchange Rate on Cash and Cash Equivalents
Net (decrease) increase in cash and cash equivalents
Cash and Cash Equivalents, Period Increase (Decrease)
Cash and cash equivalents, beginning of period
Cash and Cash Equivalents, at Carrying Value
Cash and cash equivalents, end of period
Supplemental disclosures of cash flow information:
Supplemental Cash Flow Information [Abstract]
Cash paid during the period for:
Cash Paid During Period For Abstract
Cash Paid During Period For
Interest
Interest Paid
Income taxes
Income Taxes Paid
Non-cash investing and financing activities:
Noncash Investing and Financing Items [Abstract]
Additions to property, plant and equipment included in capital expenditures payable
Increase (Decrease) in Construction Payables
Common stock issuance for conversion and exchange in 2014 and 2013, respectively, of 6.0% convertible senior subordinated notes due April 2014, $150 million related party in 2013
Debt Conversion, Converted Instrument, Amount
Schedule Of Accrued Severance Obligation
Schedule Of Accrued Severance Obligation [Table Text Block]
Schedule Of Accrued Severance Obligation [Table Text Block]
Schedule of Changes in Projected Benefit Obligations and Fair Value of Plan Assets
Schedule of Changes in Projected Benefit Obligations and Fair Value of Plan Assets [Table Text Block]
Schedule of Changes in Projected Benefit Obligations and Fair Value of Plan Assets [Table Text Block]
Schedule of Amounts Recognized in Balance Sheet
Schedule of Amounts Recognized in Balance Sheet [Table Text Block]
Schedule of Amounts Recognized in Other Comprehensive Income (Loss)
Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]
Schedule of Benefit Obligations in Excess of Fair Value of Plan Assets
Schedule of Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]
Components of net periodic pension cost
Schedule of Net Benefit Costs [Table Text Block]
Schedule of Assumptions Used
Schedule of Assumptions Used [Table Text Block]
Schedule of Allocation of Plan Assets
Schedule of Allocation of Plan Assets [Table Text Block]
Schedule of Expected Benefit Payments
Schedule of Expected Benefit Payments [Table Text Block]
Commitments and Contingencies
Commitments and Contingencies Disclosure [Text Block]
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 Disclosures [Axis]
Prior Service Cost [Member]
Prior Service Cost [Member]
Actuarial Net Gain Loss [Member]
Actuarial Net Gain Loss [Member]
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]
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax [Abstract]
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Unrecognized pension costs, beginning of year
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax
Amortization included in net periodic pension cost, net of tax
Other Comprehensive (Income) Loss, Amortization Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Prior Service Cost (Credit), Net of Tax
Net gain arising during period, net of tax
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Gain (Loss), Net of Tax
Unrecognized pension costs, end of year
Estimated amortization of cost to be included in 2012 net periodic pension cost
Defined Benefit Plan, Future Amortization of Prior Service Cost (Credit)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax
Pension and Severance Plans
Pension And Severance Plans [Text Block]
The entire disclosure for pension and severance defined benefit plans.
Valuation of money market funds and restricted cash using quoted market prices in active markets for identical assets
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Table Text Block]
Financial instruments that are not recorded at fair value
Schedule of Fair Value, Debt [Table Text Block]
Schedule of Fair Value, Debt [Table Text Block]
Earnings Per Share [Abstract]
Earnings Per Share
Earnings Per Share [Text Block]
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table]
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table]
Stock Options [Member]
Selling, General and Administrative Expenses [Member]
Selling, General and Administrative Expenses [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation expense
Disposal Group, Not Discontinued Operation, Disposal Disclosures [Abstract]
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]
Schedule of Future Minimum Rental Payments for Operating Leases
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]
Payables and Accruals [Abstract]
Summarized Accrued expenses
Schedule of Accrued Liabilities [Table Text Block]
Other Income and Expenses [Abstract]
Other Income and Other Expense Disclosure [Text Block]
Other Income and Other Expense Disclosure [Text Block]
Document Information [Table]
Document Information, Document [Axis]
Document Information, Document [Axis]
Document [Domain]
Document [Domain]
Document Information [Line Items]
Document Information [Line Items]
Document and Entity Information [Abstract]
Document and Entity Information [Abstract]
Document And Entity Information.
Entity Registrant Name
Entity Registrant Name
Entity Central Index Key
Entity Central Index Key
Current Fiscal Year End Date
Current Fiscal Year End Date
Entity Filer Category
Entity Filer Category
Document Type
Document Type
Document Period End Date
Document Period End Date
Document Fiscal Year Focus
Document Fiscal Year Focus
Document Fiscal Period Focus
Document Fiscal Period Focus
Amendment Flag
Amendment Flag
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
Entity Public Float
Entity Public Float
Share-Based Compensation Plans
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]
Debt Disclosure [Abstract]
Summary of Short term Borrowings And Long term Debt
Schedule of Debt [Table Text Block]
Schedule of Interest Rates
Schedule of Long-Term Interest Rates [Table Text Block]
Schedule of Long-Term Interest Rates [Table Text Block]
Schedule of Maturities of Long-term Debt
Schedule of Maturities of Long-term Debt [Table Text Block]
Dilutive Securities Adjustments [Table]
Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Table]
Convertible Notes Due 2014 [Member]
Convertible Notes Due 2014 [Member]
convertible notes due 2014.
Stock Options and Restricted Share Awards [Member]
Stock Options and Restricted Share Awards [Member]
Stock Options and Restricted Share Awards [Member]
Dilutive Securities Adjustments [Line Items]
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net Income (Loss) Attributable to Parent
Net Income (Loss) Attributable to Parent
Undistributed Earnings (Loss) Allocated to Participating Securities, Basic
Undistributed Earnings (Loss) Allocated to Participating Securities, Basic
Net Income (Loss) Available to Common Stockholders, Basic
Net Income (Loss) Available to Common Stockholders, Basic
Net Income (Loss) Available to Common Stockholders, Basic [Abstract]
Net Income (Loss) Available to Common Stockholders, Basic [Abstract]
Reallocation of Net Income to Participating Securities
Reallocation of Net Income to Participating Securities
Adjustment for dilutive securities on net income, net income reallocated to participating securities
Interest on Convertible Debt, Net of Tax
Interest on Convertible Debt, Net of Tax
Net Income (Loss) Available to Common Stockholders, Diluted
Net Income (Loss) Available to Common Stockholders, Diluted
Weighted Average Number of Shares Outstanding, Basic
Weighted Average Number of Shares Outstanding, Basic
Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]
Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements
Weighted Average Number of Shares Outstanding, Diluted
Weighted Average Number of Shares Outstanding, Diluted
Earnings Per Share, Basic and Diluted [Abstract]
Earnings Per Share, Basic and Diluted [Abstract]
Earnings Per Share, Basic
Earnings Per Share, Basic
Earnings Per Share, Diluted
Earnings Per Share, Diluted
Interest rate of convertible subordinated notes
Debt Instrument, Interest Rate, Stated Percentage
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of Shares Outstanding beginning balance
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number
Number of Shares Granted
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures
Number of Shares Exercised
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period
Number of Shares Forfeited or expired
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period
Number of Shares Outstanding ending balance
Number of Shares Fully vested and expected to vest
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number
Number of Shares Exercisable
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Weighted Average Exercise Price Per Share Outstanding beginning balance (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Weighted Average Exercise Price Per Share Granted (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price
Weighted Average Exercise Price Per Share Exercised (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price
Weighted Average Exercise Price Per Share Forfeited or expired (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price
Weighted Average Exercise Price Per Share Outstanding ending balance (in dollars per share)
Weighted Average Exercise Price Per Share Fully vested and expected to vest (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price
Weighted Average Exercise Price Per Share Exercisable (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Average Remaining Contractual Term Fully vested and expected to vest (years)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term
Average Remaining Contractual Term Exercisable (years)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term
Aggregate intrinsic value Outstanding ending balance (in dollars)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value
Aggregate intrinsic value Fully vested and expected to vest (in dollars)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value
Aggregate intrinsic value Exercisable (in dollars)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value
Business Combinations [Abstract]
Schedule of Business Acquisitions, by Acquisition [Table]
Schedule of Business Acquisitions, by Acquisition [Table]
Business Acquisition [Axis]
Business Acquisition [Axis]
Business Acquisition, Acquiree [Domain]
Business Acquisition, Acquiree [Domain]
Toshiba Electronics Malaysia [Member]
Toshiba Electronics Malaysia [Member]
Toshiba Electronics Malaysia [Member]
Business Acquisition [Line Items]
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired
Business Acquisition, Percentage of Voting Interests Acquired
Business Combination, Consideration Transferred
Business Combination, Consideration Transferred
Business Acquisition, Cost of Acquired Entity, Cash Paid
Payments to Acquire Businesses, Gross
Final Installment Payment for Previous Acquisition
Cap on Future Royalty Payments
Cap on Future Royalty Payments
Cap on Future Royalty Payments
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]
Movement in Valuation Allowances and Reserves [Roll Forward]
Valuation Allowances and Reserves, Balance
Valuation Allowances and Reserves, Balance
Valuation Allowances and Reserves, Charged to Cost and Expense
Valuation Allowances and Reserves, Charged to Cost and Expense
Valuation Allowances and Reserves, Write-offs
Valuation Allowances and Reserves, Deductions
Valuation Allowances and Reserves, Charged to Other Accounts
Valuation Allowances and Reserves, Charged to Other Accounts
Valuation Allowances and Reserves, Balance
Income Statement [Abstract]
Net sales
Revenue, Net
Cost of sales
Cost of Goods and Services Sold
Gross profit
Gross Profit
Selling, general and administrative
Selling, General and Administrative Expense
Research and development
Research and Development Expense
Total operating expenses
Operating Expenses
Operating income
Operating Income (Loss)
Interest expense
Interest Expense
Interest expense, related party
Interest Expense, Related Party
Other (income) expense, net
Other Nonoperating Income (Expense)
Total other expense, net
Nonoperating Income (Expense)
Income tax expense
Income Tax Expense (Benefit)
Income before equity in earnings of unconsolidated affiliate
Income Before Equity In Earnings Of Unconsolidated Affiliate
Net income before the entity's share of its equity method investee's earnings.
Equity in earnings of J-Devices
Net income
Net income attributable to noncontrolling interests
Net Income (Loss) Attributable to Noncontrolling Interest
Net income attributable to Amkor
Net income attributable to Amkor per common share:
Basic (in dollars per share)
Diluted (in dollars per share)
Shares used in computing per common share amounts:
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Basic (in shares)
Diluted (in shares)
Interest income
Interest Income, Deposits with Financial Institutions
Foreign currency (gain) loss, net
Foreign Currency Transaction Gain (Loss), before Tax
Gains (Losses) on Extinguishment of Debt Including Prepayment Penalties
Gains (Losses) on Extinguishment of Debt Including Prepayment Penalties
Gains (Losses) on Extinguishment of Debt Including Prepayment Penalties
Gain on sale of subsidiary to J-Devices (Note 4)
Other income, net
Other Nonoperating Income (Expense), Net
The net of miscellaneous income and expense items that are combined together as a component of Other Nonoperating Income (Expense).
Total other (income) expense, net
Payroll and benefits
Employee-related Liabilities, Current
Deferred revenue and customer advances
Deferred Revenue and Credits, Current
Accrued settlement costs
Accrued settlement costs
Accrued settlement costs
Income taxes payable
Accrued Income Taxes, Current
Accrued interest
Interest Payable, Current
Accrued severance plan obligations (Note 15)
Supplemental Unemployment Benefits, Severance Benefits
Acquisition payable (Note 3)
Business Acquisition, Cost of Acquired Entity, Estimate of Remaining Cash to Be Paid
Business Combination, Cost of Acquired Entity, Estimate of Remaining Cash to Be Paid
Other accrued expenses
Other Accrued Liabilities, Current
Total accrued expenses
Accrued Liabilities, Current
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Operations [Text Block]
Nature of Operations [Text Block]
Basis of Presentation
Basis Of Presentation [Policy Text Block]
Basis Of Presentation [Policy Text Block]
Use of Estimates
Use of Estimates, Policy [Policy Text Block]
Consolidation of Variable Interest Entities
Consolidation, Variable Interest Entity, Policy [Policy Text Block]
Foreign Currency Translation
Foreign Currency Transactions and Translations Policy [Policy Text Block]
Concentration Risk Disclosure [Text Block]
Concentration Risk Disclosure [Text Block]
Risks and Uncertainties
Commitments and Contingencies, Policy [Policy Text Block]
Cash and Cash Equivalents
Cash and Cash Equivalents, Policy [Policy Text Block]
Restricted Cash
Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block]
Inventories
Inventory, Policy [Policy Text Block]
Other Current Assets [Text Block]
Other Current Assets [Text Block]
Property, Plant and Equipment
Property, Plant and Equipment, Policy [Policy Text Block]
Investments
Equity Method Investments, Policy [Policy Text Block]
Schedule of Other Assets, Noncurrent [Table Text Block]
Schedule of Other Assets, Noncurrent [Table Text Block]
Other Noncurrent Liabilities [Table Text Block]
Other Noncurrent Liabilities [Table Text Block]
Treasury Stock
Treasury Stock, Policy [Policy Text Block]
Treasury Stock, Policy [Policy Text Block]
Fair Value Measurements
Fair Value of Financial Instruments, Policy [Policy Text Block]
Revenue Recognition
Revenue Recognition, Policy [Policy Text Block]
Shipping and Handling Fees and Costs
Shipping and Handling Cost, Policy [Policy Text Block]
Research and Development Costs
Research and Development Expense, Policy [Policy Text Block]
Income Taxes
Income Tax, Policy [Policy Text Block]
2015
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months
2016
Long-term Debt, Maturities, Repayments of Principal in Year Two
2017
Long-term Debt, Maturities, Repayments of Principal in Year Three
2018
Long-term Debt, Maturities, Repayments of Principal in Year Four
2019
Long-term Debt, Maturities, Repayments of Principal in Year Five
Thereafter
Long-term Debt, Maturities, Repayments of Principal after Year Five
Total debt
Long-term Debt Including Related Party, Gross
Amount of long-term debt, including related party debt, before deduction of unamortized discount or premium.
Income Tax Holiday, Termination Date
Income Tax Holiday, Termination Date
Income Tax Holiday, Aggregate Dollar Amount
Income Tax Holiday, Aggregate Dollar Amount
Income Tax Holiday, Tax Benefit, Diluted Earnings Per Share
Income Tax Holiday, Tax Benefit, Diluted Earnings Per Share
Income Tax Holiday, Tax Benefit, Diluted Earnings Per Share
Schedule of Segment Reporting Information, by Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Products and Services [Axis]
Products and Services [Axis]
Products and Services [Domain]
Products and Services [Domain]
Advanced Products [Member]
Advanced Products [Member]
Advanced Products [Member]
Mainstream Products [Member]
Mainstream Products [Member]
Mainstream Products [Member]
Customer [Axis]
Customer [Axis]
Customer [Domain]
Customer [Domain]
Customer One [Member]
Customer One [Member]
Customer One [Member]
Customer Two [Member]
Customer Two [Member]
Customer Two [Member]
Concentration Risk Benchmark [Axis]
Concentration Risk Benchmark [Axis]
Concentration Risk Benchmark [Domain]
Concentration Risk Benchmark [Domain]
Sales [Member]
Sales [Member]
Concentration Risk Type [Axis]
Concentration Risk Type [Axis]
Concentration Risk Type [Domain]
Concentration Risk Type [Domain]
Customer Concentration Risk [Member]
Customer Concentration Risk [Member]
Geographical [Axis]
Geographical [Axis]
Geographical [Domain]
Geographical [Domain]
CHINA
CHINA
IRELAND
IRELAND
JAPAN
JAPAN
MALAYSIA
MALAYSIA
PHILIPPINES
PHILIPPINES
SINGAPORE
SINGAPORE
TAIWAN, PROVINCE OF CHINA
TAIWAN, PROVINCE OF CHINA
THAILAND
THAILAND
Other Foreign Countries [Member]
Other Foreign Countries [Member]
Other Foreign Countries [Member]
Total Foreign Countries [Member]
Total Foreign Countries [Member]
Total Foreign Countries [Member]
UNITED STATES
UNITED STATES
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Property, Plant and Equipment, Net
Property, Plant and Equipment, Net
Concentration Risk, Percentage
Concentration Risk, Percentage
Accounting Changes and Error Corrections [Abstract]
New Accounting Standards
New Accounting Pronouncements and Changes in Accounting Principles [Text Block]
Schedule of Valuation and Qualifying Accounts Disclosure
Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]
Factoring of Accounts Receivable [Table]
Factoring of Accounts Receivable [Table]
Factoring of Accounts Receivable [Table]
Factoring of Accounts Receivable [Axis]
Factoring of Accounts Receivable [Axis]
Factoring of Accounts Receivable [Axis]
Factoring of Accounts Receivable [Domain]
Factoring of Accounts Receivable [Domain]
[Domain] for Factoring of Accounts Receivable [Axis]
Total Factored [Member]
Total Factored [Member]
Total Accounts Receivable Factored [Member]
Factoring Fees [Member]
Factoring Fees [Member]
Factoring Fees [Member]
Factoring of Accounts Receivable [Line Items]
Factoring of Accounts Receivable [Line Items]
[Line Items] for Factoring of Accounts Receivable [Table]
Accounts Receivable Sold without Recourse
Accounts Receivable Sold without Recourse
Accounts Receivable Sold without Recourse
Statement of Stockholders' Equity [Abstract]
Statement, Equity Components [Axis]
Total Amkor Stockholders' Equity [Member]
Parent [Member]
Common Stock [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Additional Paid-in Capital [Member]
Accumulated Deficit [Member]
Retained Earnings [Member]
Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Treasury Stock [Member]
Treasury Stock [Member]
Noncontrolling Interest in Subsidiaries [Member]
Noncontrolling Interest [Member]
Treasury Stock, Shares
Treasury Stock, Shares
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest
Balance at beginning of period, shares
Common Stock, Shares, Issued
Net income
Net Income (Loss) Attributable to Noncontrolling Interest
Other comprehensive income
Other Comprehensive Income (Loss), Net of Tax
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest
Conversion of debt to common stock
Stock Issued During Period, Value, Conversion of Convertible Securities
Conversion of debt to common stock, shares
Stock Issued During Period, Shares, Conversion of Convertible Securities
Repurchase of common stock
Treasury Stock, Value, Acquired, Cost Method
Repurchase of common stock, number of shares
Treasury Stock, Shares, Acquired
Treasury stock acquired through surrender of shares for tax withholding
Adjustments Related to Tax Withholding for Share-based Compensation
Treasury stock acquired through surrender of shares for tax withholding, shares
Shares Paid for Tax Withholding for Share Based Compensation
Issuance of stock through share-based compensation plans
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures
Issuance of stock through share-based compensation plans, shares
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures
Share-based compensation expense
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition
Balance at end of period, shares
Balance at end of period
Schedule of Restructuring and Related Costs [Table]
Schedule of Restructuring and Related Costs [Table]
Restructuring Cost and Reserve [Axis]
Restructuring Type [Axis]
Type of Restructuring [Domain]
Type of Restructuring [Domain]
Employee Separation Costs [Member]
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve [Roll Forward]
Restructuring Reserve [Roll Forward]
Accrual, Beginning of year
Restructuring Reserve
Charges
Restructuring Charges
Cash Payments
Payments for Restructuring
Non-cash Amounts
Restructuring Reserve, Translation and Other Adjustment
Accrual, End of year
Schedule of Income before Income Tax, Domestic and Foreign
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]
Schedule of Components of Income Tax Expense (Benefit)
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
Schedule of Effective Income Tax Rate Reconciliation
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Schedule of Deferred Tax Assets and Liabilities
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
Summary of Operating Loss Carryforwards
Summary of Operating Loss Carryforwards [Table Text Block]
Schedule of Unrecognized Tax Benefits Rollforward
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]
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 [Axis]
Antidilutive Securities [Axis]
Antidilutive Securities, Name [Domain]
Antidilutive Securities, Name [Domain]
Stock Options And Restricted Shares [Member]
Stock Options And Restricted Shares [Member]
Stock options and restricted shares.
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive shares
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
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]
Defined Benefit Plan and Other Postretirement Benefit Plans [Domain]
Korean Severance Plan [Member]
Korean Severance Plan [Member]
Severance plan in the form of a lump-sum payment upon termination of employment (employees and directors), based on length of service, seniority and average monthly wages at the time of termination, which is not related to restructurings, pension plans or other post retirement benefit plans.
Other Deferred Cash Compensation [Axis]
Other Deferred Cash Compensation [Axis]
Other Deferred Cash Compensation [Axis]
Other Deferred Cash Compensation [Domain]
Other Deferred Cash Compensation [Domain]
Other Deferred Cash Compensation [Domain]
Accrued Severance Plan Minimum Service Period
Deferred Compensation Arrangement with Individual, Requisite Service Period
Deferred Compensation Liability, Current and Noncurrent [Roll Forward]
Deferred Compensation Liability, Current and Noncurrent [Roll Forward]
Deferred Compensation Liability, Current and Noncurrent [Roll Forward]
Balance
Deferred Compensation Cash-based Arrangements, Liability, Current and Noncurrent
Provision of severance benefits
Provision of Severance Benefits
Provision related to lump-sum payment upon termination of employment (employees and directors), based on length of service, seniority and average monthly wages at the time of termination, which is not related to restructurings, pension plans or other post retirement benefit plans. Severance benefits are estimated assuming all eligible employees were to terminate their employment at the balance sheet date.
Severance payments
Payments for Employee Severance
Lump-sum payments related to termination of employment (employees and directors), based on length of service, seniority and average monthly wages at the time of termination, which is not related to restructurings, pension plans or other post retirement benefit plans. Severance benefits are estimated assuming all eligible employees were to terminate their employment at the balance sheet date.
(Gain) loss on foreign currency
Severance Benefits, Translation Adjustments
Foreign currency translation adjustments related to the transactions for lump-sum payment upon termination of employment (employees and directors), based on length of service, seniority and average monthly wages at the time of termination, which is not related to restructurings, pension plans or other post retirement benefit plans. Severance benefits are estimated assuming all eligible employees were to terminate their employment at the balance sheet date.
Balance
Payments remaining with the National Pension Fund
Payments Remaining With Local Pension Fund
Payments remaining with the Korean National Pension Fund.
Pension and Other Postretirement and Postemployment Benefit Plans, Liabilities
Pension and Other Postretirement and Postemployment Benefit Plans, Liabilities
Less current portion of accrued severance obligation (Note 13)
Pension and Other Postretirement and Postemployment Benefit Plans, Liabilities, Current
Non-current portion of severance obligation
Pension and Other Postretirement and Postemployment Benefit Plans, Liabilities, Noncurrent
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Translation Adjustment [Member]
Accumulated Translation Adjustment [Member]
Equity Interest in J-Devices' Other Comprehensive Income (Loss) [Member]
Equity Interest in Investee Other Comprehensive Income (Loss) [Member]
Equity Interest in Investee Other Comprehensive Income (Loss) [Member]
Accumulated other comprehensive (loss) income
Accumulated Other Comprehensive Income (Loss), Net of Tax
Other comprehensive income (loss) before reclassifications
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax
Amounts reclassified from accumulated other comprehensive (loss) income
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax
Total other comprehensive (loss) income
Summary Balance Sheet Information of Equity Method Investee [Table]
Summary Balance Sheet Information of Equity Method Investee [Table]
Summary Balance Sheet Information of Equity Method Investee [Table]
Summary Balance Sheet Information of Equity Method Investee [Line Items]
Summary Balance Sheet Information of Equity Method Investee [Line Items]
[Line Items] for Summary Balance Sheet Information of Equity Method Investee [Table]
Statement of Comprehensive Income [Abstract]
Other comprehensive (loss) income, net of tax:
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Adjustments to unrealized components of defined benefit pension plans, net of tax
Foreign currency translation adjustment
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax
Equity interest in J-Devices' other comprehensive loss, net of tax
Other Comprehensive Income (Loss), Portion Attributable to Equity Method Investment, Net of Tax
Other Comprehensive Income (Loss), Portion Attributable to Equity Method Investment, Net of Tax
Comprehensive income
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Comprehensive income attributable to noncontrolling interests
Comprehensive income attributable to Amkor
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Summary of reduction in force initiatives
Restructuring and Related Costs [Table Text Block]
Accrued Expenses
Accounts Payable and Accrued Liabilities Disclosure [Text Block]
Property, Plant and Equipment [Abstract]
Schedule of Significant Acquisitions and Disposals [Table]
Schedule of Significant Acquisitions and Disposals [Table]
Significant Acquisitions and Disposals [Line Items]
Significant Acquisitions and Disposals [Line Items]
Depreciation
Depreciation
Accumulated Capitalized Interest Costs
Accumulated Capitalized Interest Costs
Foreign Postretirement Benefit Plan, Defined Benefit [Member]
Defined Benefit Plan, Asset Categories [Axis]
Equity Securities by Industry [Axis]
Equity Securities by Industry [Axis]
Equity Securities, Industry [Domain]
Equity Securities, Industry [Domain]
Equity Securities by Entity Size [Axis]
Equity Securities by Entity Size [Axis]
Equity Securities, Entity Size [Domain]
Equity Securities, Entity Size [Domain]
Equity Securities by Investment Objective [Axis]
Equity Securities by Investment Objective [Axis]
Equity Securities, Investment Objective [Domain]
Equity Securities, Investment Objective [Domain]
Service cost
Interest cost
Expected return on plan assets
Amortization of prior service cost
Recognized actuarial loss
Net periodic pension cost
Curtailment (gain) loss
Defined Benefit Plan, Recognized Net (Gain) Loss Due to Settlements
Total pension expense
Description of Business and Summary of Significant Accounting Policies
Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]
Fair Value, by Balance Sheet Grouping [Table]
Fair Value, by Balance Sheet Grouping [Table]
Measurement Basis [Axis]
Measurement Basis [Axis]
Fair Value Measurement [Domain]
Fair Value Measurement [Domain]
Portion at Fair Value Measurement [Member]
Portion at Fair Value Measurement [Member]
Carrying Value [Member]
Reported Value Measurement [Member]
Senior Notes [Member]
Senior Notes [Member]
Convertible Subordinated Debt [Member]
Convertible Subordinated Debt [Member]
Subsidiary Term Loans [Member]
Subsidiary Term Loans [Member]
Subsidiary Term Loans [Member]
Fair Value, Inputs, Level 2 [Member]
Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value
Debt Instrument, Fair Value Disclosure
Property Plant and Equipment Policy
Property Plant and Equipment Policy [Table Text Block]
Property Plant and Equipment [Table Text Block]
Inventories
Inventory, Net, Combining Work in Process and Raw Materials Alternative [Abstract]
Raw materials and purchased components
Inventory, Raw Materials, Net of Reserves
Work-in-process
Inventory, Work in Process, Net of Reserves
Total inventories
Inventory, Net
Income Taxes
Income Tax Disclosure [Text Block]
Schedule of Long-term Debt Instruments [Table]
Schedule of Long-term Debt Instruments [Table]
Term loan, LIBOR plus 3.70%, due December 2019
Term Loan Due December 2019 [Member]
Term Loan Due December 2019 [Member]
Term loan, foreign currency funding-linked base rate plus 1.75%, due September 2017 (7)
Term Loan Due September 2017 [Member]
Term Loan Due September 2017 [Member]
Term loan, LIBOR plus 3.70%, due July 2017 (6)
Term Loan Due July 2017 [Member]
Term Loan Due July 2017 [Member]
Term loan, LIBOR plus 3.70%, due June 2016 (4)
Term Loan Due June 2016 [Member]
Term Loan Due June 2016 [Member]
Term loan, foreign currency funding-linked base rate plus 2.30%, due March 2015
Term Loan Due March 2015 [Member]
Term Loan Due March 2015 [Member]
Term loan, foreign currency funding-linked base rate plus 2.00%, due March 2017 (5)
Term Loan Due March 2017 [Member]
Term Loan Due March 2017 [Member]
$41 million revolving credit facility, foreign currency funding-linked base rate plus 2.00%, due June 2016 (3)
Revolving credit facility due June 2016 [Member]
Revolving credit facility due June 2016 [Member]
6.0% Convertible senior subordinated notes, due April 2014 (2)
Convertible Senior Subordinated Notes Due April 2014 [Member]
Convertible senior subordinated notes due April 2014.
6.375% Senior notes, due October 2022
Senior Notes Due October 2022 [Member]
Senior Notes Due October 2022 [Member]
6.625% Senior notes, due June 2021, $75 million related party
Senior Notes Due 2021 [Member]
Senior notes due 2021.
7.375% Senior notes, due May 2018
Senior Notes Due May 2018 [Member]
Senior notes.
Revolving credit facility, TAIFX plus a bank-determined spread, due April 2015 (Taiwan) (8)
Revolving Credit Facility Due April 2015 [Member]
Revolving Credit Facility Due April 2015 [Member]
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Description of variable rate basis
Debt Instrument, Description of Variable Rate Basis
Debt Instrument, Basis Spread on Variable Rate
Debt Instrument, Basis Spread on Variable Rate
Line of Credit Facility, Current Borrowing Capacity
Debt Covenant Borrowing Base Required Accounts Receivable Minimum
Debt Covenant Borrowing Base Required Accounts Receivable Minimum
Interest rate
Face amount, related party
Debt Instrument Face Amount Related Party
Debt Instrument Face Amount Related Party
Reconciliation between statutory rate and income tax provision
Effective Income Tax Rate Reconciliation, Amount [Abstract]
U.S. federal tax at 35%
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount
State taxes, net of federal benefit
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount
Foreign income taxed at different rates
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount
Foreign exchange (loss) gain
Income Tax Reconciliation Foreign Exchange Gain Loss
The portion of the difference between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations that is attributable to gains or losses on foreign exchange.
Change in valuation allowance
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount
Adjustments related to prior years
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount
Income tax credits generated
Effective Income Tax Rate Reconciliation, Tax Credit, Amount
Repatriation of foreign earnings and profits
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount
Expiration of capital loss carryforward
Income Tax Reconciliation Expiration Of Capital Loss Carryforwards
The portion of the difference between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations that is attributable to the expiration of capital loss carryforwards.
Effective Income Tax Rate Reconciliation, Expiration of Net Operating Losses
Effective Income Tax Rate Reconciliation, Expiration of Net Operating Losses
Effective Income Tax Rate Reconciliation, Expiration of Net Operating Losses
Equity in earnings of J-Devices
Effective Income Tax Rate Reconciliation, Equity in Earnings (Losses) of Unconsolidated Subsidiary, Amount
Debt conversion costs
Effective income tax rate reconciliation, debt conversion cost
Effective income tax rate reconciliation, debt conversion cost
Other
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount
Income tax expense
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
Comprehensive Income (Loss) Note [Text Block]
Comprehensive Income (Loss) Note [Text Block]
Statement of Financial Position [Abstract]
ASSETS
Assets [Abstract]
Current assets:
Assets, Current [Abstract]
Cash and cash equivalents
Restricted cash
Restricted Cash and Cash Equivalents, Current
Accounts Receivable, Net of Allowances of $1,377 and $7,120
Accounts Receivable, Net, Current
Inventories
Other current assets
Other Assets, Current
Total current assets
Assets, Current
Property, plant and equipment, net
Investments
Equity Method Investments
Restricted cash
Restricted Cash and Cash Equivalents, Noncurrent
Other assets
Other Assets, Noncurrent
Total assets
Assets
LIABILITIES AND EQUITY
Liabilities and Equity [Abstract]
Current liabilities:
Liabilities, Current [Abstract]
Short-term borrowings and current portion of long-term debt
Debt, Current
Trade accounts payable
Accounts Payable, Current
Capital expenditures payable
Capital expenditures payable
Amount owed for capital expenditures.
Accrued expenses
Total current liabilities
Liabilities, Current
Long-term debt
Long-term Debt, Excluding Current Maturities
Long-term debt, related party
Due to Related Parties, Noncurrent
Pension and severance obligations
Other non-current liabilities
Other Liabilities, Noncurrent
Total liabilities
Liabilities
Commitments and contingencies (Note 18)
Commitments and Contingencies
Equity:
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Amkor stockholders' equity:
Stockholders' Equity Attributable to Parent [Abstract]
Preferred stock, $0.001 par value, 10,000 shares authorized, designated Series A, none issued
Preferred Stock, Value, Issued
Common stock, $0.001 par value, 500,000 shares authorized, 282,231 and 262,109 shares issued, and 236,627 and 216,702 shares outstanding, in 2014 and 2013, respectively
Common Stock, Value, Issued
Additional paid-in capital
Additional Paid in Capital
Accumulated deficit
Retained Earnings (Accumulated Deficit)
Accumulated other comprehensive loss
Treasury stock, at cost, 45,604 and 45,407 shares in 2014 and 2013, respectively
Treasury Stock, Value
Total Amkor stockholders’ equity
Stockholders' Equity Attributable to Parent
Noncontrolling interests in subsidiaries
Stockholders' Equity Attributable to Noncontrolling Interest
Total equity
Total liabilities and equity
Liabilities and Equity
Long-term Debt Including Related Party, Gross
Debt Instrument, Unamortized Premium
Debt Instrument, Unamortized Premium
Less: Short-term borrowings and current portion of long-term debt
Long-term debt (including related party)
Non Current Long term Debt Including Related Party
Non current long-term debt including related party.
Summary of all common stock option activity
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
Assumptions used in valuing the weighted average fair values of the options granted
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
Restricted share activity
Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]
Valuation Allowance [Table]
Valuation Allowance by Deferred Tax Asset [Axis]
Deferred Tax Asset [Domain]
Valuation Allowance Share Based Compensation [Member]
The valuation allowance related to the tax benefits of tax deductions associated with employee stock options.
Valuation Allowance [Line Items]
Components of Deferred Tax Assets and Liabilities [Abstract]
Net operating loss carryforwards
Deferred Tax Assets, Operating Loss Carryforwards
Income tax credits
Deferred Tax Assets, Tax Credit Carryforwards
Property, plant and equipment
Deferred Tax Assets, Property, Plant and Equipment
Accrued liabilities
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities
Unrealized foreign exchange loss
Deferred Tax Assets, Unrealized Currency Losses
Other
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 of Valuation Allowance
Property, plant and equipment
Deferred Tax Liabilities, Property, Plant and Equipment
Deferred gain
Deferred Tax Liabilities, Tax Deferred Income
Other
Deferred Tax Liabilities, Other
Total deferred tax liabilities
Deferred Tax Liabilities, Gross
Net deferred tax assets
Deferred Tax Assets, Net
Other current assets
Deferred Tax Assets, Net, Current
Other assets
Deferred Tax Assets, Net, Noncurrent
Accrued expenses
Deferred Tax Liabilities, Net, Current
Other non-current liabilities
Deferred Tax Liabilities, Net, Noncurrent
Valuation Allowance, Deferred Tax Asset, Change in Amount
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount
Schedule of Property, Plant and Equipment [Table]
Property, Plant and Equipment [Table]
Land
Land [Member]
Land use rights
Buildings and improvements
Machinery and equipment
Software and computer equipment
Furniture, fixtures and other equipment
Construction in progress
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross
Property, Plant and Equipment, Gross
Less accumulated depreciation and amortization
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Total property, plant and equipment, net
Debt
Debt Disclosure [Text Block]
Computation of basic and diluted earnings per share
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Antidilutive effect of potential shares of common stock that were excluded from diluted earnings per share
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]
Related Party [Axis]
Related Party [Axis]
Related Party [Domain]
Related Party [Domain]
Related Party [Member]
Long Term Debt, Due to Related Party [Member]
Long term debt due to related party.
Non cash investing and financing activities:
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Variable Rate [Axis]
Variable Rate [Axis]
Variable Rate [Domain]
Variable Rate [Domain]
London Interbank Offered Rate (LIBOR) [Member]
London Interbank Offered Rate (LIBOR) [Member]
Foreign Currency Funding-Linked Rate [Member]
Foreign Currency Funding-Linked Rate [Member]
Foreign Currency Funding-Linked Rate [Member]
Term loan, LIBOR plus 3.70%, due June 2016
Term loan, foreign currency funding-linked base rate plus 2.00%, due March 2017
Term loan, LIBOR plus 3.70%, due July 2017
Term loan, foreign currency funding-linked base rate plus 1.75%, due September 2017
Debt Instrument, Interest Rate at Period End
Debt Instrument, Interest Rate, Effective Percentage
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table]
Disposal Group Name [Axis]
Disposal Group Name [Axis]
Disposal Groups, Including Discontinued Operations, Name [Domain]
Disposal Groups, Including Discontinued Operations, Name [Domain]
Amkor Iwate Company Ltd [Member]
Japanese Subsidiary [Member]
Japanese Subsidiary
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sale of Stock, Percentage of Ownership before Transaction
Sale of Stock, Percentage of Ownership before Transaction
Significant Acquisitions and Disposals, Acquisition Costs or Sale Proceeds
Significant Acquisitions and Disposals, Acquisition Costs or Sale Proceeds
Proceeds from Divestiture of Interest in Consolidated Subsidiaries
Proceeds from Divestiture of Interest in Consolidated Subsidiaries
Proceeds to Be Received from Divestiture of Interest in Consolidated Subsidiaries
Proceeds to Be Received from Divestiture of Interest in Consolidated Subsidiaries
Proceeds to Be Received from Divestiture of Interest in Consolidated Subsidiaries
Gain (Loss) on Disposition of Business
Disposal Group, Including Discontinued Operation, Foreign Currency Translation Gains (Losses)
Disposal Group, Including Discontinued Operation, Foreign Currency Translation Gains (Losses)
Business Combination, Bargain Purchase, Gain Recognized, Amount
Business Combination, Bargain Purchase, Gain Recognized, Amount
Proportionate Share Of Investee Bargain Purchase Gain
Proportionate Share Of Investee Bargain Purchase Gain
Of the bargain purchase gain realized by the equity method investee upon its purchase of a subsidiary from the entity, the portion of the gain that is attributable to and realized by the reporting entity.
Combined Net Gain from Sale of Subsidiary
Combined Net Gain from Sale of Subsidiary
The combined net gain (loss) realized by the entity includes the gain on the sale of the subsidiary as well as the entity's share of the increase in equity that the equity method investee related party realized upon the purchase of the former subsidiary.
Property, Plant And Equipment
Property, Plant and Equipment Disclosure [Text Block]
Summary Income Statement Information of Equity Method Investee [Table]
Summary Income Statement Information of Equity Method Investee [Table]
Summary Income Statement Information of Equity Method Investee [Table]
Summary Income Statement Information of Equity Method Investee [Line Items]
Summary Income Statement Information of Equity Method Investee [Line Items]
[Line Items] for Summary Income Statement Information of Equity Method Investee [Table]
Schedule of Other Nonoperating Income (Expense) [Table Text Block]
Schedule of Other Nonoperating Income (Expense) [Table Text Block]
Schedule of Investments [Table]
Schedule of Investments [Table]
Ownership Thresholds 2015 [Axis]
Option Ownership Thresholds [Axis]
Option Ownership Thresholds [Axis]
Option Ownership Thresholds [Domain]
Ownership Threshold 2015 [Domain]
[Domain] for Option Ownership Thresholds [Axis]
Japanese Subsidiary [Member]
Minority Shareholder in Equity Method Investment [Axis]
Minority Shareholder in Equity Method Investment [Axis]
Minority Shareholders in Equity Method Investment
Minority Shareholder in Equity Method Investment [Domain]
Minority Shareholder in Equity Method Investment [Domain]
Minority Shareholder in Equity Method Investment
Former NMD Shareholders [Member]
Former NMD Shareholders [Member]
Former NMD Shareholders [Member]
Schedule of Investments [Line Items]
Schedule of Investments [Line Items]
Minimum ownership threshold, put option
Minimum ownership threshold, put option
Minimum ownership threshold, put option
Ownership Interest
Equity Method Investment, Ownership Percentage
Payments to Acquire Businesses and Interest in Affiliates
Maximum ownership ratio of call options
Maximum Ownership Ratio Of Call Options
Maximum Ownership Ratio Of Call Options
Retained Earnings, Undistributed Earnings from Equity Method Investees
Retained Earnings, Undistributed Earnings from Equity Method Investees
Summary of Property, plant and equipment
Property, Plant and Equipment [Table Text Block]
Business Combination Disclosure [Text Block]
Business Combination Disclosure [Text Block]
Debt Instruments [Abstract]
Debt Instruments [Abstract]
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum
Line of Credit Facility, Borrowing Capacity, Description
Line of Credit Facility, Borrowing Capacity, Description
Debt Instrument, Face Amount
Debt Instrument, Face Amount
Debt Instrument, Periodic Payment, Principal
Debt Instrument, Periodic Payment, Principal
Line of Credit Facility, Current Borrowing Capacity
Line of Credit Facility, Current Borrowing Capacity
Debt Instrument, Unused Borrowing Capacity, Amount
Debt Instrument, Unused Borrowing Capacity, Amount
Debt Instrument Term
Debt Instrument, Term
Repayments of Debt
Repayments of Debt
Step down provision
Line of Credit Facility, Step Down Provision
Line of Credit Facility, Step Down Provision
Line of Credit Facility, Step Down Provision, Step Down Period
Line of Credit Facility, Step Down Provision, Step Down Period
Represents the time period between step downs under the step down provision for a line of credit.
Debt Instrument, Convertible, Conversion Price
Debt Instrument, Convertible, Conversion Price
Debt Conversion, Converted Instrument, Shares Issued
Debt Conversion, Converted Instrument, Shares Issued
Payments of Debt Exchange Costs
Common stock issuance for conversion of related party 6.25% convertible subordinated notes
Debt Conversion, Original Debt, Amount
Fair Value Measurements
Fair Value Disclosures [Text Block]
Cash and Cash Equivalents [Member]
Foreign Securities [Member]
Foreign Equity Securities [Member]
Foreign Equity Securities [Member]
US Securities [Member]
US Equity Securities [Member]
US Equity Securities [Member]
US Fixed Income Funds [Member]
Fixed Income Funds [Member]
US Government Debt Securities [Member]
US Government Debt Securities [Member]
Bonds [Member]
Foreign Treasury Notes [Member]
Foreign Government Short-term Debt Securities [Member]
Taiwan Retirement Fund [Member]
Taiwan Retirement Fund [Member]
Other [Member]
Other Investment Type [Member]
Other Investment Type [Member]
Fair value of plan assets
Cost Recognized
Defined Contribution Plan, Cost Recognized
United States
Income (Loss) from Continuing Operations before Income Taxes, Domestic
Foreign
Income (Loss) from Continuing Operations before Income Taxes, Foreign
Total income before income taxes
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest
Components of the provision (benefit) for income taxes
Components of Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current federal tax expense
Current Federal Tax Expense (Benefit)
Current state tax (benefit) expense
Current State and Local Tax Expense (Benefit)
Current foreign tax expense
Current Foreign Tax Expense (Benefit)
Current income tax expense
Current Income Tax Expense (Benefit)
Deferred federal tax expense
Deferred Federal Income Tax Expense (Benefit)
Deferred state tax expense
Deferred State and Local Income Tax Expense (Benefit)
Deferred foreign tax expense (benefit)
Deferred Foreign Income Tax Expense (Benefit)
Deferred income tax expense (benefit)
Effective Income Tax Rate Reconciliation, Percent
Effective Income Tax Rate Reconciliation, Percent
Inventories
Schedule of Inventory, Current [Table Text Block]
Preferred stock designated Series A, par value (in dollars per share)
Preferred Stock, Par or Stated Value Per Share
Preferred stock designated Series A, shares authorized (in shares)
Preferred Stock, Shares Authorized
Preferred stock designated Series A, shares issued (in shares)
Preferred Stock, Shares Issued
Common stock, par value (in dollars per share)
Common Stock, Par or Stated Value Per Share
Common stock, shares authorized (in shares)
Common Stock, Shares Authorized
Common stock, shares issued (in shares)
Common stock, shares outstanding (in shares)
Common Stock, Shares, Outstanding
Treasury stock, shares
Schedule of Equity Method Investments [Table]
Schedule of Equity Method Investments [Table]
Schedule of Equity Method Investments [Line Items]
Schedule of Equity Method Investments [Line Items]
Equity Method Investments
Equity Method Investment, Ownership Percentage
Schedule of Variable Interest Entities [Table]
Schedule of Variable Interest Entities [Table]
Variable Interest Entities by Classification of Entity [Axis]
Variable Interest Entities [Axis]
Variable Interest Entity, Classification [Domain]
Variable Interest Entity, Classification [Domain]
Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity [Line Items]
Ownership Percentage
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage
Carrying Amount, Assets and Liabilities
Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net
Expected life (in years)
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term
Risk-free interest rate
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate
Volatility
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate
Dividend yield
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate
Weighted average grant date fair value per option granted (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value
Income Tax Contingency [Table]
Income Tax Contingency [Table]
Scenario [Axis]
Scenario, Forecast [Member]
Scenario, Forecast [Member]
Unrecognized Tax Benefit By Type Of Change Axis [Axis]
Unrecognized Tax Benefit By Type Of Change Axis [Axis]
Unrecognized Tax Benefit By Type of Change [Domain]
Unrecognized Tax Benefit By Type of Change [Domain]
Tax Deductions [Member]
Tax Deductions [Member]
Tax Deductions [Member]
Settlement with Taxing Authority [Member]
Settlement with Taxing Authority [Member]
Contested Prior Year Deductions In Foreign Jurisdictions [Member]
Contested Prior Year Deductions In Foreign Jurisdictions [Member]
Income Tax Contingency [Line Items]
Income Tax Contingency [Line Items]
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance, beginning of period
Unrecognized Tax Benefits
Additions based on tax positions related to the current year
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions
Additions for tax positions of prior years
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions
Reductions for tax positions of prior years
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions
Reductions related to settlements with tax authorities
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities
Reductions from lapse of statutes of limitations
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations
Balance, end of period
Income tax contingency [Abstract]
Income tax contingency [Abstract]
Unrecognized tax benefits, period increase (decrease)
Unrecognized Tax Benefits, Period Increase (Decrease)
Liability for uncertain tax positions
Liability for Uncertain Tax Positions, Noncurrent
Income Tax Examination [Table]
Income Tax Examination [Table]
Income Tax Examination [Line Items]
Income Tax Examination [Line Items]
Income Tax Examination, Year(s) under Examination
Income Tax Examination, Year under Examination