$DIOD
DIODES INC /DEL/ Stock $diod

$diod Overview Financials Valuation SEC Filings Company Website

2010 Q4 Form 10-K Financial Statement

#000119312512084918 Filed on February 28, 2012

Income Statement

Concept	2010 Q4	2010 Q3	2010 Q2
Revenue	$163.8M	$163.1M	$149.2M
YoY Change	25.68%	33.57%	43.56%
Cost Of Revenue	$101.1M	$102.1M	$95.69M
YoY Change	14.24%	20.81%	25.03%
Gross Profit	$62.64M	$60.98M	$53.47M
YoY Change	49.86%	62.28%	95.35%
Gross Profit Margin	38.25%	37.38%	35.85%
Selling, General & Admin	$23.10M	$22.84M	$21.42M
YoY Change	15.5%	19.7%	40.56%
% of Gross Profit	36.88%	37.45%	40.07%
Research & Development	$6.200M	$7.212M	$6.815M
YoY Change	-8.82%	14.77%	26.56%
% of Gross Profit	9.9%	11.83%	12.75%
Depreciation & Amortization	$14.00M	$13.10M	$12.70M
YoY Change	15.7%	9.17%	8.55%
% of Gross Profit	22.35%	21.48%	23.75%
Operating Expenses	$30.40M	$31.15M	$29.46M
YoY Change	8.57%	18.24%	37.05%
Operating Profit	$32.24M	$29.83M	$24.01M
YoY Change	133.64%	165.58%	308.65%
Interest Expense	-$2.600M	$939.0K	$1.396M
YoY Change	36.84%	-47.37%	-25.63%
% of Operating Profit	-8.06%	3.15%	5.81%
Other Income/Expense, Net	$1.500M	-$2.415M	-$3.423M
YoY Change	-42.31%	-39.96%	10.85%
Pretax Income	$31.10M	$27.42M	$20.59M
YoY Change	172.81%	280.24%	638.61%
Income Tax	$6.100M	$5.346M	$3.035M
% Of Pretax Income	19.61%	19.5%	14.74%
Net Earnings	$23.97M	$21.16M	$16.65M
YoY Change	68.78%	201.45%	-663.73%
Net Earnings / Revenue	14.63%	12.97%	11.16%
Basic Earnings Per Share	$0.54	$0.48	$0.38
Diluted Earnings Per Share	$0.52	$0.46	$0.37
COMMON SHARES
Basic Shares Outstanding	44.37M shares	44.35M shares	43.98M shares
Diluted Shares Outstanding		45.67M shares	45.51M shares

Balance Sheet

Concept	2010 Q4	2010 Q3	2010 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$270.9M	$263.8M	$245.6M
YoY Change	-49.7%	-39.77%	-42.79%
Cash & Equivalents	$270.9M	$263.8M	$245.6M
Short-Term Investments		$0.00	$0.00
Other Short-Term Assets	$20.00M	$19.50M	$22.40M
YoY Change	3.09%	-3.94%	20.43%
Inventory	$120.7M	$113.1M	$101.8M
Prepaid Expenses	$11.68M
Receivables	$129.2M	$123.5M	$117.3M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$540.8M	$519.8M	$487.2M
YoY Change	-27.96%	-19.14%	-20.58%
LONG-TERM ASSETS
Property, Plant & Equipment	$200.7M	$199.1M	$184.2M
YoY Change	23.17%	21.77%	9.02%
Goodwill	$68.95M	$67.67M	$65.19M
YoY Change	1.28%
Intangibles	$28.77M	$29.95M	$30.73M
YoY Change	-17.55%
Long-Term Investments
YoY Change
Other Assets	$5.760M	$5.836M	$5.375M
YoY Change	8.19%	19.1%	9.69%
Total Long-Term Assets	$305.8M	$302.6M	$285.5M
YoY Change	12.72%	11.36%	1.94%
TOTAL ASSETS
Total Short-Term Assets	$540.8M	$519.8M	$487.2M
Total Long-Term Assets	$305.8M	$302.6M	$285.5M
Total Assets	$846.6M	$822.4M	$772.7M
YoY Change	-17.16%	-10.08%	-13.52%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$70.06M	$74.77M	$67.72M
YoY Change	12.18%	30.48%	53.91%
Accrued Expenses	$37.64M	$46.34M	$41.05M
YoY Change	20.81%	43.9%	56.1%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$1.600M
YoY Change	-100.0%	-100.0%	-99.26%
Long-Term Debt Due	$128.3M	$700.0K	$700.0K
YoY Change	18228.57%	0.0%	0.0%
Total Short-Term Liabilities	$251.4M	$125.7M	$114.0M
YoY Change	-36.57%	-58.23%	-60.77%
LONG-TERM LIABILITIES
Long-Term Debt	$4.800M	$131.0M	$129.1M
YoY Change	-96.21%	2.02%	-10.41%
Other Long-Term Liabilities	$37.52M	$44.93M	$44.61M
YoY Change	-7.25%	22.09%	-7.45%
Total Long-Term Liabilities	$37.52M	$44.93M	$44.61M
YoY Change	-7.25%	-72.8%	-76.8%
TOTAL LIABILITIES
Total Short-Term Liabilities	$251.4M	$125.7M	$114.0M
Total Long-Term Liabilities	$37.52M	$44.93M	$44.61M
Total Liabilities	$293.7M	$312.0M	$296.3M
YoY Change	-48.57%	-36.8%	-41.91%
SHAREHOLDERS EQUITY
Retained Earnings
YoY Change
Common Stock	$261.6M	$253.3M	$249.9M
YoY Change	8.66%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$541.4M	$498.3M	$464.5M
YoY Change
Total Liabilities & Shareholders Equity	$846.6M	$822.4M	$772.7M
YoY Change	-17.16%	-10.08%	-13.52%

Cashflow Statement

Concept	2010 Q4	2010 Q3	2010 Q2
OPERATING ACTIVITIES
Net Income	$23.97M	$21.16M	$16.65M
YoY Change	68.78%	201.45%	-663.73%
Depreciation, Depletion And Amortization	$14.00M	$13.10M	$12.70M
YoY Change	15.7%	9.17%	8.55%
Cash From Operating Activities	$28.00M	$43.10M	$23.00M
YoY Change	30.23%	122.16%	29.21%
INVESTING ACTIVITIES
Capital Expenditures	-$22.50M	-$25.20M	-$24.60M
YoY Change	134.38%	620.0%	382.35%
Acquisitions
YoY Change
Other Investing Activities	$0.00	-$200.0K	$238.0M
YoY Change	-100.0%	-102.6%	10247.83%
Cash From Investing Activities	-$22.40M	-$25.50M	$213.4M
YoY Change	-500.0%	-721.95%	-7721.43%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	3.300M	-2.300M	-237.4M
YoY Change	-96.29%	-69.74%	13088.89%
NET CHANGE
Cash From Operating Activities	28.00M	43.10M	23.00M
Cash From Investing Activities	-22.40M	-25.50M	213.4M
Cash From Financing Activities	3.300M	-2.300M	-237.4M
Net Change In Cash	8.900M	15.30M	-1.000M
YoY Change	-92.33%	-3.77%	-107.58%
FREE CASH FLOW
Cash From Operating Activities	$28.00M	$43.10M	$23.00M
Capital Expenditures	-$22.50M	-$25.20M	-$24.60M
Free Cash Flow	$50.50M	$68.30M	$47.60M
YoY Change	62.38%	198.25%	107.86%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2011	dei	Document Type DocumentType	10-K
CY2011	dei	Document Period End Date DocumentPeriodEndDate	2011-12-31
CY2011	dei	Amendment Flag AmendmentFlag	false
CY2011	dei	Entity Registrant Name EntityRegistrantName	DIODES INC /DEL/
CY2011	dei	Entity Central Index Key EntityCentralIndexKey	0000029002
CY2011	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2011	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2011	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2011Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1.00
CY2010Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1.00
CY2011Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000	shares
CY2010Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000	shares
CY2011Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2010Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2011Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2011	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2011	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2012Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	45458469000	shares
CY2011Q2	dei	Entity Public Float EntityPublicFloat	967434893	USD
CY2011	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2011
CY2011	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2011Q4	us-gaap	Foreign Currency Exchange Rate Translation ForeignCurrencyExchangeRateTranslation	0.625
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	270901000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	129510000	USD
CY2011Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	132408000	USD
CY2011Q4	us-gaap	Inventory Net InventoryNet	140337000	USD
CY2011Q4	us-gaap	Assets Current AssetsCurrent	426798000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	225393000	USD
CY2011Q4	us-gaap	Goodwill Goodwill	67818000	USD
CY2011Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	24197000	USD
CY2011Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	21995000	USD
CY2011Q4	us-gaap	Assets Net AssetsNet	793064000	USD
CY2010Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	129207000	USD
CY2010Q4	us-gaap	Inventory Net InventoryNet	120689000	USD
CY2010Q4	us-gaap	Assets Current AssetsCurrent	540752000	USD
CY2010Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	200745000	USD
CY2010Q4	us-gaap	Goodwill Goodwill	68949000	USD
CY2010Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	28770000	USD
CY2010Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	5760000	USD
CY2010Q4	us-gaap	Assets Net AssetsNet	846550000	USD
CY2011Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	19093000	USD
CY2010Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	11679000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	5450000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	8276000	USD
CY2010Q4	diod	Deferred Tax Assets Noncurrent Net DeferredTaxAssetsNoncurrentNet	1574000	USD
CY2011Q4	diod	Deferred Tax Assets Noncurrent Net DeferredTaxAssetsNoncurrentNet	26863000	USD
CY2010Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2011Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.666
CY2010Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.666
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CY2010Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	846550000	USD
CY2011Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	793064000	USD
CY2010Q4	us-gaap	Convertible Debt Current ConvertibleDebtCurrent	128261000	USD
CY2011Q4	us-gaap	Convertible Debt Current ConvertibleDebtCurrent	0	USD
CY2011	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	441554000	USD
CY2011	us-gaap	Gross Profit GrossProfit	193697000	USD
CY2011	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	89974000	USD
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CY2010Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	70000000	shares
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CY2010Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	44662796	shares
CY2011Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	45432252	shares
CY2010Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	44662796	shares
CY2011Q4	us-gaap	Short Term Bank Loans And Notes Payable ShortTermBankLoansAndNotesPayable	8000000	USD
CY2010Q4	us-gaap	Short Term Bank Loans And Notes Payable ShortTermBankLoansAndNotesPayable	0	USD
CY2011Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	66063000	USD
CY2010Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	70057000	USD
CY2011Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	30793000	USD
CY2010Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	37635000	USD
CY2011Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	4855000	USD
CY2010Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	15412000	USD
CY2011Q4	us-gaap	Liabilities Current LiabilitiesCurrent	109711000	USD
CY2010Q4	us-gaap	Long Term Loans From Bank LongTermLoansFromBank	3393000	USD
CY2011Q4	us-gaap	Long Term Loans From Bank LongTermLoansFromBank	2857000	USD
CY2010Q4	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	1380000	USD
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CY2011Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	30699000	USD
CY2010Q4	us-gaap	Liabilities Liabilities	293658000	USD
CY2011Q4	us-gaap	Liabilities Liabilities	144349000	USD
CY2010Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2011Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
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CY2011Q4	us-gaap	Common Stock Value CommonStockValue	30423000	USD
CY2010Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	231842000	USD
CY2011Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	263455000	USD
CY2010Q4	us-gaap	Retained Earnings Appropriated RetainedEarningsAppropriated	324907000	USD
CY2011Q4	us-gaap	Retained Earnings Appropriated RetainedEarningsAppropriated	375644000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-45080000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-35762000	USD
CY2010Q4	us-gaap	Stockholders Equity StockholdersEquity	541444000	USD
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	633760000	USD
CY2010Q4	us-gaap	Minority Interest MinorityInterest	11448000	USD
CY2011Q4	us-gaap	Minority Interest MinorityInterest	14955000	USD
CY2010Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	552892000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	648715000	USD
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CY2011	us-gaap	Net Income Loss NetIncomeLoss	50737000	USD
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CY2009	us-gaap	Profit Loss ProfitLoss	9848000	USD
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CY2010	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-6829000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	98103000	USD
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CY2010	us-gaap	Net Income Loss NetIncomeLoss	76733000	USD
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CY2011	us-gaap	Sales Revenue Net SalesRevenueNet	635251000	USD
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CY2009	us-gaap	Sales Revenue Net SalesRevenueNet	434357000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	10157000	USD
CY2010	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	17839000	USD
CY2009	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1302000	USD
CY2009	us-gaap	Amortization Of Acquisition Costs AmortizationOfAcquisitionCosts	4225000	USD
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CY2010	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	-2373000	USD
CY2010	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	4779000	USD
CY2010	us-gaap	Adjustments To Additional Paid In Capital Equity Component Of Convertible Debt AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt	-57000	USD
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CY2009	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	9976000	USD
CY2009	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1538000	USD
CY2009	us-gaap	Adjustments To Additional Paid In Capital Equity Component Of Convertible Debt AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt	-1077000	USD
CY2009	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	10936000	USD
CY2009Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	450924000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	15024000	USD
CY2009	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	-1498000	USD
CY2010	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	3073000	USD
CY2011	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	737000	USD
CY2009	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	31437000	USD
CY2009	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPeriodIncreaseDecrease	7963000	USD
CY2009	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease	-12346000	USD
CY2010	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPeriodIncreaseDecrease	-1519000	USD
CY2010	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease	4750000	USD
CY2011	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPeriodIncreaseDecrease	-690000	USD
CY2011	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease	10008000	USD
CY2011	us-gaap	Depreciation Depreciation	56927000	USD
CY2010	us-gaap	Depreciation Depreciation	47365000	USD
CY2009	us-gaap	Depreciation Depreciation	42507000	USD
CY2011	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	4511000	USD
CY2010	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	4431000	USD
CY2009	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	4665000	USD
CY2011	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	412000	USD
CY2010	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	549000	USD
CY2009	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	648000	USD
CY2011	us-gaap	Share Based Compensation ShareBasedCompensation	13703000	USD
CY2010	us-gaap	Share Based Compensation ShareBasedCompensation	13051000	USD
CY2009	us-gaap	Share Based Compensation ShareBasedCompensation	10936000	USD
CY2011	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-31000	USD
CY2010	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	1665000	USD
CY2011	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	20187000	USD
CY2010	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	30388000	USD
CY2009	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-12340000	USD
CY2011	diod	Prepaid Expenses And Other Current Assets PrepaidExpensesAndOtherCurrentAssets	7483000	USD
CY2010	diod	Prepaid Expenses And Other Current Assets PrepaidExpensesAndOtherCurrentAssets	2290000	USD
CY2009	diod	Prepaid Expenses And Other Current Assets PrepaidExpensesAndOtherCurrentAssets	-3298000	USD
CY2011	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-3584000	USD
CY2010	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	7032000	USD
CY2009	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-67000	USD
CY2011	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2010	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2009	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	1164000	USD
CY2011	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	21916000	USD
CY2010	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	4040000	USD
CY2009	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	9230000	USD
CY2011	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	4406000	USD
CY2010	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	23604000	USD
CY2009	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	26758000	USD
CY2009	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	14414000	USD
CY2011	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-8513000	USD
CY2010	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	8022000	USD
CY2009	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-4955000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	3069000	USD
CY2010	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	2445000	USD
CY2009	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-210000	USD
CY2011	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	3829000	USD
CY2010	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	12714000	USD
CY2009	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	819000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	61650000	USD
CY2010	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	118005000	USD
CY2009	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	65527000	USD
CY2011	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	14117000	USD
CY2010	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	0	USD
CY2009	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	0	USD
CY2011	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	0	USD
CY2010	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	296600000	USD
CY2009	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	24025000	USD
CY2011	us-gaap	Payments To Acquire Machinery And Equipment PaymentsToAcquireMachineryAndEquipment	80941000	USD
CY2010	us-gaap	Payments To Acquire Machinery And Equipment PaymentsToAcquireMachineryAndEquipment	88809000	USD
CY2009	us-gaap	Payments To Acquire Machinery And Equipment PaymentsToAcquireMachineryAndEquipment	22477000	USD
CY2011	us-gaap	Proceeds From Sale Of Machinery And Equipment ProceedsFromSaleOfMachineryAndEquipment	40000	USD
CY2010	us-gaap	Proceeds From Sale Of Machinery And Equipment ProceedsFromSaleOfMachineryAndEquipment	2163000	USD
CY2009	us-gaap	Proceeds From Sale Of Machinery And Equipment ProceedsFromSaleOfMachineryAndEquipment	342000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-98312000	USD
CY2010	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	209569000	USD
CY2009	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	1860000	USD
CY2011	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	8000000	USD
CY2010	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	3762000	USD
CY2009	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	126563000	USD
CY2011	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	0	USD
CY2010	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	303192000	USD
CY2009	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	45084000	USD
CY2011	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	3526000	USD
CY2010	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	4818000	USD
CY2009	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1702000	USD
CY2011	us-gaap	Payments Of Capital Distribution PaymentsOfCapitalDistribution	0	USD
CY2010	us-gaap	Payments Of Capital Distribution PaymentsOfCapitalDistribution	2373000	USD
CY2009	us-gaap	Payments Of Capital Distribution PaymentsOfCapitalDistribution	1498000	USD
CY2011	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	134706000	USD
CY2010	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	1165000	USD
CY2009	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	13387000	USD
CY2011	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	285000	USD
CY2010	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	268000	USD
CY2009	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	381000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-107713000	USD
CY2010	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-295349000	USD
CY2009	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	67915000	USD
CY2011	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	2984000	USD
CY2010	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-3277000	USD
CY2009	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	3155000	USD
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-141391000	USD
CY2010	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	28948000	USD
CY2009	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	138457000	USD
CY2008Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	103496000	USD
CY2009Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	241953000	USD
CY2011	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	15024000	USD
CY2010	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	3073000	USD
CY2009	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	0	USD
CY2011	us-gaap	Payments For Other Operating Activities PaymentsForOtherOperatingActivities	-742000	USD
CY2010	us-gaap	Payments For Other Operating Activities PaymentsForOtherOperatingActivities	464000	USD
CY2009	us-gaap	Payments For Other Operating Activities PaymentsForOtherOperatingActivities	0	USD
CY2011	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	3294000	USD
CY2010	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	385000	USD
CY2009	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	30000	USD
CY2011	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	15024000	USD
CY2010	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	3073000	USD
CY2009	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	0	USD
CY2011	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	728000	USD
CY2010	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-4000	USD
CY2009	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	USD
CY2011	us-gaap	Interest Paid InterestPaid	3322000	USD
CY2011	us-gaap	Income Taxes Paid IncomeTaxesPaid	12118000	USD
CY2011	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	-1934000	USD
CY2011	diod	Fair Value Of Common Stock Issued For Repayment Of Long Term Debt FairValueOfCommonStockIssuedForRepaymentOfLongTermDebt	0	USD
CY2010	us-gaap	Interest Paid InterestPaid	4638000	USD
CY2010	us-gaap	Income Taxes Paid IncomeTaxesPaid	9617000	USD
CY2010	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	2229000	USD
CY2010	diod	Fair Value Of Common Stock Issued For Repayment Of Long Term Debt FairValueOfCommonStockIssuedForRepaymentOfLongTermDebt	0	USD
CY2009	us-gaap	Interest Paid InterestPaid	10518000	USD
CY2009	us-gaap	Income Taxes Paid IncomeTaxesPaid	4866000	USD
CY2009	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	-3291000	USD
CY2009	diod	Fair Value Of Common Stock Issued For Repayment Of Long Term Debt FairValueOfCommonStockIssuedForRepaymentOfLongTermDebt	-31437000	USD
CY2009	us-gaap	Sales Returns And Allowances Goods SalesReturnsAndAllowancesGoods	18000000	USD
CY2011Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	2000000	USD
CY2010Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1000000	USD
CY2009Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1000000	USD
CY2011	us-gaap	Nature Of Operations NatureOfOperations	<p style='margin-top:11.25pt; margin-bottom:11.25pt'><font style="font-family:Times New Roman;font-size:10pt;font-weight:bold;margin-left:0px;">Nature of operations </font><font style="font-family:Times New Roman;font-size:10pt;font-weight:bold;">–</font><font style="font-family:Times New Roman;font-size:10pt;"> </font><font style="font-family:Times New Roman;font-size:10pt;">Diodes Incorporated and its subsidiaries </font><font style="font-family:Times New Roman;font-size:10pt;">(collectively, the “Company”) is a </font><font style="font-family:Times New Roman;font-size:10pt;">leading global manufacturer and supplier of high-quality, application specific standard products within the broad discrete, logic and analog semiconductor markets, serving the consumer electronics, computing, communications, industrial and automotive markets. These products include diodes, rectifiers, transistors, MOSFETs, protection devices, functional specific arrays, single gate logic, amplifiers and comparators, Hall-effect and temperature sensors, power management devices including LED drivers, DC-DC switching and linear voltage regulators and voltage references along with special function devices including USB power switches, load switches, voltage supervisors and motor controllers. The products are sold primarily throughout Asia, North America and Europe.</font></p>
CY2011	us-gaap	Sales Returns And Allowances Goods SalesReturnsAndAllowancesGoods	34000000	USD
CY2010	us-gaap	Sales Returns And Allowances Goods SalesReturnsAndAllowancesGoods	32000000	USD
CY2009	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	7641000	USD
CY2011	us-gaap	Finite Lived Intangible Assets Weighted Average Useful Life FiniteLivedIntangibleAssetsWeightedAverageUsefulLife	7
CY2011	us-gaap	Shipping Handling And Transportation Costs ShippingHandlingAndTransportationCosts	6000000	USD
CY2010	us-gaap	Shipping Handling And Transportation Costs ShippingHandlingAndTransportationCosts	5000000	USD
CY2009	us-gaap	Shipping Handling And Transportation Costs ShippingHandlingAndTransportationCosts	3000000	USD
CY2011	us-gaap	Use Of Estimates UseOfEstimates	<p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;font-weight:bold;margin-left:0px;">Use of estimates</font><font style="font-family:Times New Roman;font-size:10pt;"> </font><font style="font-family:Times New Roman;font-size:10pt;font-weight:bold;">–</font><font style="font-family:Times New Roman;font-size:10pt;"> The preparation of financial statements in conformity with GAAP requires that management make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. The level of uncertainty in estimates and assumptions increases with the length of time until the underlying transactions are completed. Actual results may differ from these estimates in amounts that may be material to the consolidated financial statements and accompanying notes.</font></p>
CY2010	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	2000000	shares
CY2009	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	3000000	shares
CY2011	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	2000000	shares
CY2009	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1212000	shares
CY2011	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1511000	shares
CY2010	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1400000	shares
CY2011	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	1000000	USD
CY2010	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	0	USD
CY2009	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	5000000	USD
CY2010Q4	us-gaap	Minority Interest In Joint Ventures MinorityInterestInJointVentures	1000000	USD
CY2011Q4	us-gaap	Minority Interest In Joint Ventures MinorityInterestInJointVentures	1000000	USD
CY2009Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-48000000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	60055000	USD
CY2010	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	79964000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-29919000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	-5843000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-29230000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	-15850000	USD
CY2011	us-gaap	Reclassifications Reclassifications	<p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;font-weight:bold;margin-left:36px;">Reclassifications</font><font style="font-family:Times New Roman;font-size:10pt;"> – Certain amounts from prior periods have been reclassified to conform to the current years' presentation</font><font style="font-family:Times New Roman;font-size:10pt;">.</font></p>
CY2011	us-gaap	Description Of New Accounting Pronouncements Not Yet Adopted DescriptionOfNewAccountingPronouncementsNotYetAdopted	<p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;font-weight:bold;margin-left:36px;">Recently issued accounting pronouncements</font><font style="font-family:Times New Roman;font-size:10pt;"> – </font><font style="font-family:Times New Roman;font-size:10pt;">In June 2011, the FASB issued ASU No. 2011-05, </font><font style="font-family:Times New Roman;font-size:10pt;font-style:italic;">Comprehensive Income (Topic 220): Presentation of Comprehensive Income. </font><font style="font-family:Times New Roman;font-size:10pt;">ASU No. 2011-05 provides two options for presenting other comprehensive income (OCI), which previously has typically been placed near the statement of equity. The amendments require an OCI statement to be included with the income statement, which together will make a statement of total comprehensive income or separate from the income statement, but the two statements will have to appear consecutively within a financial report. </font><font style="font-family:Times New Roman;font-size:10pt;">The amendments also required that reclassification adjustments for items that are reclassified from other comprehensive income to net income in the statement(s) be presented on the face of the financial statements.  However, in December 2011 the FASB issued ASU No. 2011-12, </font><font style="font-family:Times New Roman;font-size:10pt;font-style:italic;">Comprehensive Income (Topic 220): Deferral of the Effective Date for Amendments to the Presentation of Reclassifications of Items Out of Accumulated Other Comprehensive Income in Accounting Standards Update No. 2011-05</font><font style="font-family:Times New Roman;font-size:10pt;"> that deferred the effective date for amendments to the presentation of reclassifications of items out of other comprehensive income.  ASU No. 2011-12</font><font style="font-family:Times New Roman;font-size:10pt;"> was issued to allow the FASB time to redeliberate whether it is necessary to require entities to present reclassification adjustments, by component, in both the statement where net income is presented and the statement where comprehensive income is presented for both interim and annual financial statements, as originally required under ASU No. 2011-05.  During the FASB's redeliberation period, entities will continue to report reclassifications out of accumulated other comprehensive income using guidance in effect before ASU No. 2011-05 was issued.  ASU No. 2011-05 is to be applied retrospectively and is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2011.  The adoption of this ASU will have no effect on the Company's reported financial condition, financial performance or cash flows and the </font><font style="font-family:Times New Roman;font-size:10pt;">Company will select one of the two presentation options in its Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2012.</font></p>
CY2011Q3	us-gaap	Sale Of Stock Number Of Shares Issued In Transaction SaleOfStockNumberOfSharesIssuedInTransaction	10000000	shares
CY2011Q4	diod	Number Of Common Stock Shares Purchased NumberOfCommonStockSharesPurchased	12413604	shares
CY2011Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	52027000	USD
CY2011Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	22937000	USD
CY2011Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	65373000	USD
CY2010Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	34551000	USD
CY2010Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	35189000	USD
CY2010Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	50949000	USD
CY2010Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	48664000	USD
CY2011Q4	diod	Finite Lived Intangible Assets Currency Translation FiniteLivedIntangibleAssetsCurrencyTranslation	7760000	USD
CY2010Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	42353000	USD
CY2010Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	4607000	USD
CY2010Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	354008000	USD
CY2010Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	400968000	USD
CY2010Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	215213000	USD
CY2010Q4	diod	Property Plant And Equipment Net Excluding Land PropertyPlantAndEquipmentNetExcludingLand	185755000	USD
CY2010Q4	us-gaap	Land Land	14990000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	476681000	USD
CY2011Q4	us-gaap	Land Land	14940000	USD
CY2011Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	410559000	USD
CY2011Q4	diod	Property Plant And Equipment Net Excluding Land PropertyPlantAndEquipmentNetExcludingLand	210453000	USD
CY2011Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	266228000	USD
CY2011Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	46654000	USD
CY2011Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	19468000	USD
CY2010Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	26265000	USD
CY2010Q4	diod	Finite Lived Intangible Assets Currency Translation FiniteLivedIntangibleAssetsCurrencyTranslation	7718000	USD
CY2010Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	14681000	USD
CY2011Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	19193000	USD
CY2011Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	21711000	USD
CY2011	us-gaap	Line Of Credit Facility Expiration Date LineOfCreditFacilityExpirationDate	January 22, 2012
CY2011Q4	diod	Intangible Assets Accumulated Amortization IntangibleAssetsAccumulatedAmortization	19193000	USD
CY2011Q4	diod	Intangible Assets Currency Translation IntangibleAssetsCurrencyTranslation	8436000	USD
CY2011	us-gaap	Future Amortization Expense Year Four FutureAmortizationExpenseYearFour	2532000	USD
CY2011	us-gaap	Future Amortization Expense Year Three FutureAmortizationExpenseYearThree	2896000	USD
CY2011Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	48664000	USD
CY2011Q4	diod	Indefinite Lived Intangible Assets Gross IndefiniteLivedIntangibleAssetsGross	3162000	USD
CY2011Q4	diod	Indefinite Lived Intangible Assets Net IndefiniteLivedIntangibleAssetsNet	2486000	USD
CY2011Q4	diod	Indefinite Lived Intangible Assets Currency Translation IndefiniteLivedIntangibleAssetsCurrencyTranslation	676000	USD
CY2011Q4	diod	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	51826000	USD
CY2010Q4	diod	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	51826000	USD
CY2010Q4	diod	Intangible Assets Accumulated Amortization IntangibleAssetsAccumulatedAmortization	14681000	USD
CY2010Q4	diod	Intangible Assets Currency Translation IntangibleAssetsCurrencyTranslation	8375000	USD
CY2010Q4	diod	Indefinite Lived Intangible Assets Gross IndefiniteLivedIntangibleAssetsGross	3162000	USD
CY2010Q4	diod	Indefinite Lived Intangible Assets Currency Translation IndefiniteLivedIntangibleAssetsCurrencyTranslation	657000	USD
CY2010Q4	diod	Indefinite Lived Intangible Assets Net IndefiniteLivedIntangibleAssetsNet	2505000	USD
CY2011	us-gaap	Finite Lived Intangible Assets Amortization Expense FiniteLivedIntangibleAssetsAmortizationExpense	5000000	USD
CY2010	us-gaap	Finite Lived Intangible Assets Amortization Expense FiniteLivedIntangibleAssetsAmortizationExpense	4000000	USD
CY2009	us-gaap	Finite Lived Intangible Assets Amortization Expense FiniteLivedIntangibleAssetsAmortizationExpense	5000000	USD
CY2011	us-gaap	Future Amortization Expense Year One FutureAmortizationExpenseYearOne	4337000	USD
CY2011	us-gaap	Future Amortization Expense Year Two FutureAmortizationExpenseYearTwo	3576000	USD
CY2011	us-gaap	Future Amortization Expense Year Five FutureAmortizationExpenseYearFive	2292000	USD
CY2009Q4	us-gaap	Goodwill Goodwill	68075000	USD
CY2010	us-gaap	Goodwill Other Changes GoodwillOtherChanges	874000	USD
CY2011	us-gaap	Goodwill Other Changes GoodwillOtherChanges	-1131000	USD
CY2011	us-gaap	Line Of Credit Facility Initiation Date LineOfCreditFacilityInitiationDate	November 25, 2009
CY2011	us-gaap	Line Of Credit Facility Covenant Terms LineOfCreditFacilityCovenantTerms	In addition, the Credit Agreement contains certain restrictive and financial covenants, including, but not limited to, the following: (a) the Company shall maintain on a consolidated basis a Fixed Charge Coverage Ratio of not less than 2.00 to 1.0 and a Quick Ratio of not less than 1.50 to 1.0 (excluding the Company’s Notes for both ratios); (b) the Company and its subsidiaries shall not create, incur, assume or suffer to exist any lien upon any of its property, assets or revenues except as specified in the Credit Agreement; (c) the Company and its subsidiaries shall not make any investments except as specified in the Credit Agreement; (d) the Company and its subsidiaries shall not create, incur, assume or suffer to exist any indebtedness except as specified in the Credit Agreement; (e) the Company and its subsidiaries shall not dissolve or merge or consolidate with or into another entity except as specified in the Credit Agreement; (f) the Company and its subsidiaries shall not make any disposition except as specified in the Credit Agreement; (g) the Company and its subsidiaries shall not make any restricted payment, or issue or sell any equity interests, except as specified in the Credit Agreement; (h) the Company and its subsidiaries shall not engage in any material line of business substantially different from those lines of business that are currently conducted by the Company and its subsidiaries; (i) the Company and its subsidiaries shall not enter into any transaction of any kind with any affiliate of the Company except as specified in the Credit Agreement; (j) the Company and its subsidiaries shall not enter into certain burdensome contractual obligations except as specified in the Credit Agreement; and (k) the Company and its subsidiaries shall not use the proceeds of any credit extension to purchase or carry margin stock or to extend credit to others for the purpose of purchasing or carrying margin stock or to refund indebtedness originally incurred for such purpose.
CY2011	us-gaap	Line Of Credit Facility Covenant Compliance LineOfCreditFacilityCovenantCompliance	As of December 31, 2011, the Company was in compliance with these covenants.
CY2011Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	56000000	USD
CY2011Q4	diod	Line Of Credit Facility Credit Used For Guarantee LineOfCreditFacilityCreditUsedForGuarantee	3000000	USD
CY2010Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	134293000	USD
CY2011Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	0	USD
CY2010Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	6032000	USD
CY2010Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0225	pure
CY2010Q4	us-gaap	Long Term Debt LongTermDebt	3811000	USD
CY2010Q4	us-gaap	Debt Current DebtCurrent	-418000	USD
CY2011Q4	us-gaap	Debt Current DebtCurrent	-408000	USD
CY2011Q4	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	67173000	USD
CY2011Q4	us-gaap	Line Of Credit Facility Amount Outstanding LineOfCreditFacilityAmountOutstanding	8000000	USD
CY2010Q4	us-gaap	Line Of Credit Facility Amount Outstanding LineOfCreditFacilityAmountOutstanding	0	USD
CY2011Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	0	USD
CY2011Q4	us-gaap	Long Term Debt LongTermDebt	3265000	USD
CY2011Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	158000000
CY2011Q4	us-gaap	Long Term Debt Percentage Bearing Variable Interest Rate LongTermDebtPercentageBearingVariableInterestRate	0.033	pure
CY2010Q4	us-gaap	Long Term Debt Percentage Bearing Variable Interest Rate LongTermDebtPercentageBearingVariableInterestRate	0.020	pure
CY2011	us-gaap	Debt Instrument Maturity Date Description DebtInstrumentMaturityDateDescription	TWD 132 million matures on July 6, 2021, and TWD 26 million matures July 6, 2013
CY2011Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	408000	USD
CY2011Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	395000	USD
CY2011Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	292000	USD
CY2011Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	298000	USD
CY2011Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	298000	USD
CY2011Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	1574000	USD
CY2006Q4	diod	Debt Instrument Convertible Initial Principal Amount DebtInstrumentConvertibleInitialPrincipalAmount	230000000	USD
CY2006Q4	us-gaap	Debt Instrument Interest Rate Stated Percentage DebtInstrumentInterestRateStatedPercentage	0.0225	pure
CY2011Q3	diod	Debt Instrument Convertible Principal Amount Per Note DebtInstrumentConvertiblePrincipalAmountPerNote	1000	USD
CY2011Q3	diod	Debt Instrument Convertible Amount Retired DebtInstrumentConvertibleAmountRetired	134000000	USD
CY2011Q3	diod	Debt Instrument Convertible Principle And Interest Paid DebtInstrumentConvertiblePrincipleAndInterestPaid	136000000	USD
CY2006Q4	diod	Debt Instrument Convertible Maturity Date DebtInstrumentConvertibleMaturityDate	2026
CY2010Q4	us-gaap	Debt Instrument Convertible Carrying Amount Of The Equity Component DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent	35515000	USD
CY2010	us-gaap	Debt Instrument Convertible Interest Expense DebtInstrumentConvertibleInterestExpense	3077000	USD
CY2010	diod	Amortization Of Debt Issuance Cost AmortizationOfDebtIssuanceCost	549000	USD
CY2010	diod	Debt Instrument Convertible Interest Expense Net DebtInstrumentConvertibleInterestExpenseNet	11282000	USD
CY2011	diod	Debt Instrument Convertible Interest Expense Net DebtInstrumentConvertibleInterestExpenseNet	8711000	USD
CY2011Q4	diod	Equipment Purchases Current EquipmentPurchasesCurrent	5412000	USD
CY2011Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	1423000	USD
CY2009	diod	Amortization Of Debt Issuance Cost AmortizationOfDebtIssuanceCost	648000	USD
CY2009	diod	Debt Instrument Convertible Interest Expense Net DebtInstrumentConvertibleInterestExpenseNet	12526000	USD
CY2011Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	339000	USD
CY2011Q4	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	272000	USD
CY2011Q4	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	204000	USD
CY2011	us-gaap	Debt Instrument Convertible Interest Expense DebtInstrumentConvertibleInterestExpense	2267000	USD
CY2011	diod	Amortization Of Debt Issuance Cost AmortizationOfDebtIssuanceCost	412000	USD
CY2009	us-gaap	Debt Instrument Convertible Interest Expense DebtInstrumentConvertibleInterestExpense	3576000	USD
CY2011Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	381000	USD
CY2011Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	339000	USD
CY2011Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	1535000	USD
CY2011Q4	us-gaap	Capital Leases Future Minimum Payments Interest Included In Payments CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments	161000	USD
CY2011Q4	us-gaap	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments	1374000	USD
CY2011Q4	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	-292000	USD
CY2011Q4	us-gaap	Capital Leased Assets Gross CapitalLeasedAssetsGross	3000000	USD
CY2011Q4	us-gaap	Capital Leases Lessee Balance Sheet Assets By Major Class Accumulated Deprecation CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation	2000000	USD
CY2011Q4	diod	Compensation And Payroll Taxes Current CompensationAndPayrollTaxesCurrent	10120000	USD
CY2011Q4	diod	Accrued Expenses Current AccruedExpensesCurrent	6544000	USD
CY2011Q4	diod	Accrued Pricing Adjustments Current AccruedPricingAdjustmentsCurrent	1130000	USD
CY2011Q4	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	13493000	USD
CY2010Q4	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	24863000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	10177000	USD
CY2010Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	9173000	USD
CY2011Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	1932000	USD
CY2011Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	6164000	USD
CY2010Q4	diod	Compensation And Payroll Taxes Current CompensationAndPayrollTaxesCurrent	12418000	USD
CY2010Q4	diod	Equipment Purchases Current EquipmentPurchasesCurrent	3191000	USD
CY2010Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	1483000	USD
CY2010Q4	diod	Accrued Expenses Current AccruedExpensesCurrent	7701000	USD
CY2010Q4	diod	Accrued Pricing Adjustments Current AccruedPricingAdjustmentsCurrent	5252000	USD
CY2010Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	7590000	USD
CY2010Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	2734000	USD
CY2011Q4	diod	Other Liability Noncurrent OtherLiabilityNoncurrent	5097000	USD
CY2010Q4	diod	Other Liability Noncurrent OtherLiabilityNoncurrent	750000	USD
CY2011Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	30699000	USD
CY2010Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	37520000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-28238000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	91902000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-32260000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	130363000	USD
CY2009	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	59367000	USD
CY2009	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-48217000	USD
CY2011	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-20906000	USD
CY2011	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	32587000	USD
CY2011	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	214000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	107000	USD
CY2010	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	25000	USD
CY2011	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	18324000	USD
CY2011	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	14049000	USD
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-22537000	USD
CY2010	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	243000	USD
CY2010	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	330000	USD
CY2009	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-7560000	USD
CY2009	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	1390000	USD
CY2009	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	14000	USD
CY2009	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2009	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-4510000	USD
CY2009	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	7472000	USD
CY2009	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	7458000	USD
CY2011	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-1165000	USD
CY2010	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-7079000	USD
CY2009	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-3050000	USD
CY2010	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	23211000	USD
CY2010	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-6836000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	1109000	USD
CY2010	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	23566000	USD
CY2009	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2010	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2011	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-466000	USD
CY2009	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	3881000	USD
CY2009	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-196000	USD
CY2009	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-14536000	USD
CY2009	diod	Income Tax Reconciliation Subpart F Income And Foreign Dividends IncomeTaxReconciliationSubpartFIncomeAndForeignDividends	12346000	USD
CY2009	diod	Income Tax Reconciliation Foreign Tax Credit Valuation Allowance IncomeTaxReconciliationForeignTaxCreditValuationAllowance	1933000	USD
CY2009	diod	Income Tax Reconciliation Provision To Return Adjustments IncomeTaxReconciliationProvisionToReturnAdjustments	-1663000	USD
CY2009	diod	Income Tax Reconciliation Net Operating Loss Valuation Allowance IncomeTaxReconciliationNetOperatingLossValuationAllowance	-1840000	USD
CY2009	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	173000	USD
CY2010	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	293000	USD
CY2010	diod	Income Tax Reconciliation Foreign Tax Credit Valuation Allowance IncomeTaxReconciliationForeignTaxCreditValuationAllowance	6503000	USD
CY2010	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	34336000	USD
CY2010	diod	Income Tax Reconciliation Net Operating Loss Valuation Allowance IncomeTaxReconciliationNetOperatingLossValuationAllowance	5820000	USD
CY2010	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-5050000	USD
CY2010	diod	Income Tax Reconciliation Provision To Return Adjustments IncomeTaxReconciliationProvisionToReturnAdjustments	-2345000	USD
CY2010	diod	Income Tax Reconciliation Subpart F Income And Foreign Dividends IncomeTaxReconciliationSubpartFIncomeAndForeignDividends	1786000	USD
CY2010	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	33000	USD
CY2011	diod	Income Tax Reconciliation Provision To Return Adjustments IncomeTaxReconciliationProvisionToReturnAdjustments	-167000	USD
CY2011	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-6356000	USD
CY2011	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	22282000	USD
CY2011	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-366000	USD
CY2011	diod	Income Tax Reconciliation Subpart F Income And Foreign Dividends IncomeTaxReconciliationSubpartFIncomeAndForeignDividends	1115000	USD
CY2011	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-615000	USD
CY2011	diod	Income Tax Reconciliation Net Operating Loss Valuation Allowance IncomeTaxReconciliationNetOperatingLossValuationAllowance	0	USD
CY2011	diod	Income Tax Reconciliation Foreign Tax Credit Valuation Allowance IncomeTaxReconciliationForeignTaxCreditValuationAllowance	5843000	USD
CY2011	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2011	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.006	pure
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.1	pure
CY2011	diod	Effective Income Tax Rate Reconciliation Subpart F Income And Foreign Dividends EffectiveIncomeTaxRateReconciliationSubpartFIncomeAndForeignDividends	0.018	pure
CY2011	diod	Effective Income Tax Rate Reconciliation Foreign Tax Credit Valuation Allowance EffectiveIncomeTaxRateReconciliationForeignTaxCreditValuationAllowance	-0.092	pure
CY2011	diod	Effective Income Tax Rate Reconciliation Unrecognized Tax Benefits EffectiveIncomeTaxRateReconciliationUnrecognizedTaxBenefits	0.002	pure
CY2011	diod	Effective Income Tax Rate Reconciliation Provision To Return Adjustments EffectiveIncomeTaxRateReconciliationProvisionToReturnAdjustments	-0.003	pure
CY2011	diod	Effective Income Tax Rate Reconciliation Net Operating Loss Valuation Allowance EffectiveIncomeTaxRateReconciliationNetOperatingLossValuationAllowance	0	pure
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.01	pure
CY2011	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.159	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.052	pure
CY2010	diod	Effective Income Tax Rate Reconciliation Foreign Tax Credit Valuation Allowance EffectiveIncomeTaxRateReconciliationForeignTaxCreditValuationAllowance	-0.066	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.001	pure
CY2010	diod	Effective Income Tax Rate Reconciliation Subpart F Income And Foreign Dividends EffectiveIncomeTaxRateReconciliationSubpartFIncomeAndForeignDividends	0.018	pure
CY2010	diod	Effective Income Tax Rate Reconciliation Unrecognized Tax Benefits EffectiveIncomeTaxRateReconciliationUnrecognizedTaxBenefits	0.011	pure
CY2010	diod	Effective Income Tax Rate Reconciliation Net Operating Loss Valuation Allowance EffectiveIncomeTaxRateReconciliationNetOperatingLossValuationAllowance	-0.059	pure
CY2010	diod	Effective Income Tax Rate Reconciliation Provision To Return Adjustments EffectiveIncomeTaxRateReconciliationProvisionToReturnAdjustments	-0.024	pure
CY2010	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.182	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.003	pure
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-1.311	pure
CY2009	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.117	pure
CY2009	diod	Effective Income Tax Rate Reconciliation Unrecognized Tax Benefits EffectiveIncomeTaxRateReconciliationUnrecognizedTaxBenefits	0.125	pure
CY2009	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2009	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.018	pure
CY2009	diod	Effective Income Tax Rate Reconciliation Subpart F Income And Foreign Dividends EffectiveIncomeTaxRateReconciliationSubpartFIncomeAndForeignDividends	1.113	pure
CY2009	diod	Effective Income Tax Rate Reconciliation Provision To Return Adjustments EffectiveIncomeTaxRateReconciliationProvisionToReturnAdjustments	-0.15	pure
CY2009	diod	Effective Income Tax Rate Reconciliation Foreign Tax Credit Valuation Allowance EffectiveIncomeTaxRateReconciliationForeignTaxCreditValuationAllowance	-0.174	pure
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.016	pure
CY2009	diod	Effective Income Tax Rate Reconciliation Net Operating Loss Valuation Allowance EffectiveIncomeTaxRateReconciliationNetOperatingLossValuationAllowance	0.166	pure
CY2009Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	8064000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1934000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	-825000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	2233000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	-1229000	USD
CY2011	us-gaap	Significant Change In Unrecognized Tax Benefits Nature Of Uncertainty SignificantChangeInUnrecognizedTaxBenefitsNatureOfUncertainty	It is reasonably possible that the amount of the unrecognized benefit with respect to certain of the Company’s unrecognized tax positions will significantly increase or decrease within the next 12 months.
CY2011	us-gaap	Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Estimated Range Not Possible SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleEstimatedRangeNotPossible	These changes may be the result of settlements of ongoing audits or competent authority proceedings. At this time, an estimate of the range of the reasonably possible outcomes cannot be made.
CY2011	us-gaap	Income Tax Examination Description IncomeTaxExaminationDescription	The Company files income tax returns in the U.S. federal jurisdiction and in various state and foreign jurisdictions. The Company is no longer subject to U.S. federal income tax examinations by tax authorities for tax years before 2007. With respect to state and local jurisdictions and countries outside of the U.S., with limited exceptions, the Company is no longer subject to income tax audits for years before 2006. Although the outcome of tax audits is always uncertain, the Company believes that adequate amounts of tax, interest and penalties, if any, have been provided for in the Company’s reserve for any adjustments that may result from future tax audits. The Company recognizes accrued interest and penalties, if any, related to unrecognized tax benefits in income tax expense. The Company had an insignificant amount of accrued interest and penalties at December 31, 2011 and December 31, 2010.
CY2011Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	2158000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	5657000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	1754000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	1546000	USD
CY2011Q4	diod	Current Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost CurrentDeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	1538000	USD
CY2010Q4	diod	Current Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost CurrentDeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	1073000	USD
CY2011Q4	diod	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	-1818000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	19354000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Research DeferredTaxAssetsTaxCreditCarryforwardsResearch	4098000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Subject To Expiration DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration	1600000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	11750000	USD
CY2011Q4	diod	Non Current Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost NonCurrentDeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	23945000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Gross Noncurrent DeferredTaxAssetsGrossNoncurrent	58929000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Valuation Allowance Noncurrent DeferredTaxAssetsValuationAllowanceNoncurrent	28099000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	30830000	USD
CY2011Q4	us-gaap	Deferred Taxes Business Combination Valuation Allowance Available To Reduce Goodwill And Intangible Assets DeferredTaxesBusinessCombinationValuationAllowanceAvailableToReduceGoodwillAndIntangibleAssets	3967000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Financing Arrangements DeferredTaxLiabilitiesFinancingArrangements	0	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	3967000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	26863000	USD
CY2010Q4	diod	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	1325000	USD
CY2010Q4	us-gaap	Deferred Taxes Business Combination Valuation Allowance Available To Reduce Goodwill And Intangible Assets DeferredTaxesBusinessCombinationValuationAllowanceAvailableToReduceGoodwillAndIntangibleAssets	10321000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	1574000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Valuation Allowance Noncurrent DeferredTaxAssetsValuationAllowanceNoncurrent	25855000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	27206000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Gross Noncurrent DeferredTaxAssetsGrossNoncurrent	53061000	USD
CY2010Q4	us-gaap	Deferred Tax Liabilities Financing Arrangements DeferredTaxLiabilitiesFinancingArrangements	15311000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Research DeferredTaxAssetsTaxCreditCarryforwardsResearch	3884000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Subject To Expiration DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration	2156000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	15078000	USD
CY2010Q4	diod	Non Current Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost NonCurrentDeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	10625000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	19993000	USD
CY2010Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	25632000	USD
CY2009	us-gaap	Income Tax Holiday Aggregate Dollar Amount IncomeTaxHolidayAggregateDollarAmount	7000000	USD
CY2011	us-gaap	Tax Benefit From Stock Options Exercised TaxBenefitFromStockOptionsExercised	15000000	USD
CY2011Q4	us-gaap	Tax Credit Carryforward Valuation Allowance TaxCreditCarryforwardValuationAllowance	1000000	USD
CY2010Q4	us-gaap	Tax Credit Carryforward Valuation Allowance TaxCreditCarryforwardValuationAllowance	2000000	USD
CY2011	us-gaap	Income Tax Holiday Aggregate Dollar Amount IncomeTaxHolidayAggregateDollarAmount	7000000	USD
CY2010	us-gaap	Income Tax Holiday Aggregate Dollar Amount IncomeTaxHolidayAggregateDollarAmount	8000000	USD
CY2009Q4	us-gaap	Tax Credit Carryforward Valuation Allowance TaxCreditCarryforwardValuationAllowance	4000000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Undistributed Foreign Earnings DeferredTaxLiabilitiesUndistributedForeignEarnings	265000000	USD
CY2011Q4	us-gaap	Statutory Accounting Practices Retained Earnings Not Available For Dividends StatutoryAccountingPracticesRetainedEarningsNotAvailableForDividends	33000000	USD
CY2011Q4	diod	Additional Tax On Undistributed Foreign Earnings AdditionalTaxOnUndistributedForeignEarnings	45000000	USD
CY2011	diod	Income Tax Holiday Income Tax Benefits Per Share Basic IncomeTaxHolidayIncomeTaxBenefitsPerShareBasic	0.15	pure
CY2011	diod	Income Tax Holiday Income Tax Benefits Per Share Diluted IncomeTaxHolidayIncomeTaxBenefitsPerShareDiluted	0.15	pure
CY2010	diod	Income Tax Holiday Income Tax Benefits Per Share Basic IncomeTaxHolidayIncomeTaxBenefitsPerShareBasic	0.19	pure
CY2010	diod	Income Tax Holiday Income Tax Benefits Per Share Diluted IncomeTaxHolidayIncomeTaxBenefitsPerShareDiluted	0.18	pure
CY2009	diod	Income Tax Holiday Income Tax Benefits Per Share Basic IncomeTaxHolidayIncomeTaxBenefitsPerShareBasic	0.17	pure
CY2009	diod	Income Tax Holiday Income Tax Benefits Per Share Diluted IncomeTaxHolidayIncomeTaxBenefitsPerShareDiluted	0.17	pure
CY2010	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	309000	USD
CY2010	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	6326000	USD
CY2010	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-438000	USD
CY2010	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	5689000	USD
CY2010	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	1384000	USD
CY2011	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	6241000	USD
CY2011	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	0	USD
CY2011	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	6088000	USD
CY2011	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	168000	USD
CY2011	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	321000	USD
CY2009Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	117539000	USD
CY2010	us-gaap	Defined Benefit Plan Actuarial Net Gains Losses DefinedBenefitPlanActuarialNetGainsLosses	1143000	USD
CY2010	us-gaap	Defined Benefit Plan Benefits Paid DefinedBenefitPlanBenefitsPaid	-3283000	USD
CY2010	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Benefit Obligation DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation	-3529000	USD
CY2010Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	118505000	USD
CY2009Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	88234000	USD
CY2010	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	1468000	USD
CY2010	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	9810000	USD
CY2010	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Plan Assets DefinedBenefitPlanForeignCurrencyExchangeRateChangesPlanAssets	-2587000	USD
CY2010Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	93642000	USD
CY2010Q4	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-24863000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-13493000	USD
CY2011	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Plan Assets DefinedBenefitPlanForeignCurrencyExchangeRateChangesPlanAssets	-809000	USD
CY2011	us-gaap	Defined Benefit Plan Benefits Paid DefinedBenefitPlanBenefitsPaid	-3825000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	96384000	USD
CY2011	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	5852000	USD
CY2011	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	1524000	USD
CY2011	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Benefit Obligation DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation	-636000	USD
CY2011	us-gaap	Defined Benefit Plan Actuarial Net Gains Losses DefinedBenefitPlanActuarialNetGainsLosses	-10576000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	109877000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax	-10000000	USD
CY2011	diod	Defined Benefit Plan Recognized Gain Loss Increase Decrease DefinedBenefitPlanRecognizedGainLossIncreaseDecrease	-3000000	USD
CY2011	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-1000000	USD
CY2011	diod	Defined Benefit Plan Amortization Of Net Gains Losses Average Term DefinedBenefitPlanAmortizationOfNetGainsLossesAverageTerm	13 years
CY2011	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.051	pure
CY2011	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.056	pure
CY2010	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.066	pure
CY2010	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.054	pure
CY2011Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.051	pure
CY2010Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.054	pure
CY2011Q4	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1.00	pure
CY2011Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments In Year One DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearOne	3388000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments In Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearTwo	3636000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments In Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearThree	4258000	USD
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.5799	pure
CY2011Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments In Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearFour	4382000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments In Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearFive	4382000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments In Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsInFiveFiscalYearsThereafter	28205000	USD
CY2011	us-gaap	Defined Benefit Plan Target Allocation Percentage Of Assets Equity Securities DefinedBenefitPlanTargetAllocationPercentageOfAssetsEquitySecurities	0.48	pure
CY2011	diod	Defined Benefit Plan Target Allocation Percentage Of Assets Corporate Bonds And Government Securities DefinedBenefitPlanTargetAllocationPercentageOfAssetsCorporateBondsAndGovernmentSecurities	0.4	pure
CY2011	diod	Defined Benefit Plan Target Allocation Percentage Of Assets Equity Absolute Return Funds DefinedBenefitPlanTargetAllocationPercentageOfAssetsEquityAbsoluteReturnFunds	0.12	pure
CY2011	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	5000000	USD
CY2010	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	4000000	USD
CY2009	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	2000000	USD
CY2011	us-gaap	Deferred Compensation Arrangements Overall Description DeferredCompensationArrangementsOverallDescription	The Company maintains a Non-Qualified Deferred Compensation Plan (the “Deferred Compensation Plan”) for executive officers, key employees and members of the Board of Directors (the “Board”). The Deferred Compensation Plan allows eligible participants to defer the receipt of eligible compensation, including equity awards, until designated future dates. The Company offsets its obligations under the Deferred Compensation Plan by investing in the actual underlying investments. These investments are classified as trading securities and are carried at fair value.
CY2011Q4	us-gaap	Deferred Compensation Plan Assets DeferredCompensationPlanAssets	3000000	USD
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Description ShareBasedCompensationArrangementByShareBasedPaymentAwardDescription	The Company maintains share-based compensation plans for its Board, officers and key employees, which provide for stock options and stock awards under its 1993 ISO Plan, 1993 NQO Plan and 2001 Omnibus Equity Incentive Plan
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.5792	pure
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Term ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTerm	7.5
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0320	pure
CY2009	diod	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Forfeiture Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsForfeitureRate	0.0250	pure
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate		pure
CY2011	diod	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Forfeiture Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsForfeitureRate	0.0047	pure
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0237	pure
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.5253	pure
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Term ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTerm	7.5
CY2010	diod	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Forfeiture Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsForfeitureRate	0.0088	pure
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Term ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTerm	7.3
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0260	pure
CY2008Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	3895000	shares
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	492000	shares
CY2009	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	-324000	shares
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	-83000	shares
CY2010Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm1	5.2
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate		pure
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate		pure
CY2011	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	4000000	USD
CY2010	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	4000000	USD
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	16.55	USD
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	11.45	USD
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	9.34	USD
CY2009Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	3980000	shares
CY2009Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	3161000	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	-9000	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	385000	shares
CY2011	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	-496000	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	3587000	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	2622000	shares
CY2010	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	-669000	shares
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	3707000	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	-9000	shares
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	2785000	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	405000	shares
CY2008Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	11.61
CY2009Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	15.15
CY2009Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	4.91
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	15.89
CY2009Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	12.50
CY2009Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	10.59
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	18.98
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	7.16
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	27.39
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	14.14
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	12.53
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	29.07
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	7.17
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	20.80
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	16.69
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	14.51
CY2008Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm1	5.4
CY2009Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm1	5.2
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Remaining Contractual Term ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm	4.2
CY2011Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm1	5.1
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Remaining Contractual Term ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm	3.9
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Remaining Contractual Term ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm	4.1
CY2010Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	40420000	USD
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	11120000	USD
CY2008Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	2327000	USD
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	4328000	USD
CY2009Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	34989000	USD
CY2009Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	32558000	USD
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	9712000	USD
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	47891000	USD
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	22299000	USD
CY2011Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	20201000	USD
CY2011	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Lower Range Limit ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit	2.52
CY2011	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Upper Range Limit ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit	29.21
CY2011	diod	Share Based Compensation Shares Exercisable Under Stock Option Plans Exercise Price Range Lower Range Limit ShareBasedCompensationSharesExercisableUnderStockOptionPlansExercisePriceRangeLowerRangeLimit	2.53
CY2011	diod	Share Based Compensation Shares Exercisable Under Stock Option Plans Exercise Price Range Upper Range Limit ShareBasedCompensationSharesExercisableUnderStockOptionPlansExercisePriceRangeUpperRangeLimit	28.45
CY2008Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	846000	shares
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	387000	shares
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	-445000	shares
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	-74000	shares
CY2009Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	714000	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	377000	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	-365000	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	-52000	shares
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	674000	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	370000	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	623000	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	-47000	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	-374000	shares
CY2008Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	21.41
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	15.86
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	17.53
CY2009	diod	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	23.16
CY2009Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	20.64
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	17.46
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	18.56
CY2010	diod	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	20.17
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	21.26
CY2011	diod	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	19.69
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	20.03
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	22.91
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	27.46
CY2010	diod	Share Based Compensation Arrangement By Share Based Payment Award Equity Instrument Other Than Options Nonvested Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentOtherThanOptionsNonvestedIntrinsicValue	12479000	USD
CY2009	diod	Share Based Compensation Arrangement By Share Based Payment Award Equity Instrument Other Than Options Nonvested Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentOtherThanOptionsNonvestedIntrinsicValue	14579000	USD
CY2011	diod	Share Based Compensation Arrangement By Share Based Payment Award Equity Instrument Other Than Options Vested In Period Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentOtherThanOptionsVestedInPeriodIntrinsicValue	7487000	USD
CY2011	diod	Share Based Compensation Arrangement By Share Based Payment Award Equity Instrument Other Than Options Nonvested Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentOtherThanOptionsNonvestedIntrinsicValue	14279000	USD
CY2010Q4	us-gaap	Due From Related Parties Current DueFromRelatedPartiesCurrent	8769000	USD
CY2010Q4	us-gaap	Due To Related Parties Current DueToRelatedPartiesCurrent	17453000	USD
CY2011Q4	us-gaap	Due From Related Parties Current DueFromRelatedPartiesCurrent	11370000	USD
CY2011Q4	us-gaap	Due To Related Parties Current DueToRelatedPartiesCurrent	16940000	USD
CY2011	us-gaap	Segment Reporting Information Revenue SegmentReportingInformationRevenue	891353000	USD
CY2010	us-gaap	Segment Reporting Information Revenue SegmentReportingInformationRevenue	825407000	USD
CY2009	us-gaap	Segment Reporting Information Revenue SegmentReportingInformationRevenue	556761000	USD
CY2009	diod	Revenues From Transactions Within Same Entity RevenuesFromTransactionsWithinSameEntity	-122404000	USD
CY2010	diod	Revenues From Transactions Within Same Entity RevenuesFromTransactionsWithinSameEntity	-212521000	USD
CY2011	diod	Revenues From Transactions Within Same Entity RevenuesFromTransactionsWithinSameEntity	-256102000	USD
CY2009Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	162988000	USD
CY2009Q4	us-gaap	Assets Net AssetsNet	1021898000	USD
CY2011	diod	Sales Revenue Net Percentage SalesRevenueNetPercentage	1.00	pure
CY2009	diod	Sales Revenue Net Percentage SalesRevenueNetPercentage	1.00	pure
CY2010	diod	Sales Revenue Net Percentage SalesRevenueNetPercentage	1.00	pure
CY2011	us-gaap	Segment Reporting Disclosure Of Major Customers SegmentReportingDisclosureOfMajorCustomers	Major customers – No customer accounted for 10% or greater of the Company’s total net sales in 2011, 2010 and 2009.
CY2011	us-gaap	Lease Expiration Date LeaseExpirationDate	through December 2015
CY2011	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	6000000	USD
CY2010	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	6000000	USD
CY2009	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	6000000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	5487000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	4307000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	997000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	208000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	180000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	11179000	USD
CY2011Q4	us-gaap	Significant Purchase Commitment Remaining Minimum Amount Committed SignificantPurchaseCommitmentRemainingMinimumAmountCommitted	16000000	USD
CY2011Q4	diod	Other Commitment Remaining Minimum Amount Committed OtherCommitmentRemainingMinimumAmountCommitted	48000000	USD
CY2011	us-gaap	Long Term Purchase Commitment Potential Adverse Consequences LongTermPurchaseCommitmentPotentialAdverseConsequences	If the joint venture fails to achieve specified levels of investment, the investment agreement allows for a renegotiation as well as the option to repay a portion of such financial support.
CY2011	us-gaap	Long Term Purchase Commitment Description LongTermPurchaseCommitmentDescription	During 2010, The Company announced an investment agreement with the Management Committee of the Chengdu Hi-Tech Industrial Development Zone (the “CDHT”). Under this agreement, The Company has agreed to form a joint venture with a Chinese partner, Chengdu Ya Guang Electronic Company Limited, to establish a semiconductor manufacturing facility for surface mount component production, assembly and test in Chengdu, China. The Company initially will own at least 95% of the joint venture. The manufacturing facility will be developed in phases over a ten year period, and the Company expects to contribute at least $48 million to the joint venture in installments during the first three years. The CDHT will grant the joint venture a fifty year land lease, provides temporary facilities for up to three years at a subsidized rent while the joint venture builds the manufacturing facility and provides corporate and employee tax incentives, tax refunds, subsidies and other financial support to the joint venture and its qualified employees. If the joint venture fails to achieve specified levels of investment, the investment agreement allows for a renegotiation as well as the option to repay a portion of such financial support. This is a long-term, multi-year project that will provide additional capacity for the Company has needed.
CY2011Q4	diod	Other Commitment Remaining Minimum Amount Paid For Capital Expenditures OtherCommitmentRemainingMinimumAmountPaidForCapitalExpenditures	18000000	USD
CY2011Q4	diod	Other Commitment Remaining Minimum Amount Paid OtherCommitmentRemainingMinimumAmountPaid	25000000	USD
CY2011Q1	us-gaap	Sales Revenue Net SalesRevenueNet	161555000	USD
CY2011Q2	us-gaap	Sales Revenue Net SalesRevenueNet	169806000	USD
CY2011Q3	us-gaap	Sales Revenue Net SalesRevenueNet	160577000	USD
CY2011Q4	us-gaap	Sales Revenue Net SalesRevenueNet	143313000	USD
CY2011Q1	us-gaap	Gross Profit GrossProfit	57393000	USD
CY2011Q2	us-gaap	Gross Profit GrossProfit	55615000	USD
CY2011Q3	us-gaap	Gross Profit GrossProfit	45194000	USD
CY2011Q4	us-gaap	Gross Profit GrossProfit	35495000	USD
CY2011Q1	us-gaap	Net Income Loss NetIncomeLoss	19684000	USD
CY2011Q2	us-gaap	Net Income Loss NetIncomeLoss	17981000	USD
CY2011Q3	us-gaap	Net Income Loss NetIncomeLoss	9957000	USD
CY2011Q4	us-gaap	Net Income Loss NetIncomeLoss	3115000	USD
CY2011Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.44
CY2011Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.38
CY2011Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.22
CY2011Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.07
CY2011Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.42
CY2011Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.37
CY2011Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.21
CY2011Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.07
CY2010Q1	us-gaap	Sales Revenue Net SalesRevenueNet	136847000	USD
CY2010Q2	us-gaap	Sales Revenue Net SalesRevenueNet	149153000	USD
CY2010Q3	us-gaap	Sales Revenue Net SalesRevenueNet	163120000	USD
CY2010Q4	us-gaap	Sales Revenue Net SalesRevenueNet	163767000	USD
CY2010Q1	us-gaap	Gross Profit GrossProfit	47783000	USD
CY2010Q2	us-gaap	Gross Profit GrossProfit	53467000	USD
CY2010Q3	us-gaap	Gross Profit GrossProfit	60977000	USD
CY2010Q4	us-gaap	Gross Profit GrossProfit	62643000	USD
CY2010Q1	us-gaap	Net Income Loss NetIncomeLoss	14958000	USD
CY2010Q2	us-gaap	Net Income Loss NetIncomeLoss	16647000	USD
CY2010Q3	us-gaap	Net Income Loss NetIncomeLoss	21162000	USD
CY2010Q4	us-gaap	Net Income Loss NetIncomeLoss	23967000	USD
CY2010Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.34
CY2010Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.38
CY2010Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.48
CY2010Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.54
CY2010Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.33
CY2010Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.37
CY2010Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.46
CY2010Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.52

Files In Submission

Name	View Source	Status
0001193125-12-084918-index-headers.html	Edgar Link	pending
0001193125-12-084918-index.html	Edgar Link	pending
0001193125-12-084918.txt	Edgar Link	pending
0001193125-12-084918-xbrl.zip	Edgar Link	pending
d306974d10k.htm	Edgar Link	pending
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diod-20111231.xml	Edgar Link	completed
diod-20111231.xsd	Edgar Link	pending
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diod-20111231_def.xml	Edgar Link	unprocessable
diod-20111231_lab.xml	Edgar Link	unprocessable
diod-20111231_pre.xml	Edgar Link	unprocessable
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g306974cm-29.jpg	Edgar Link	pending
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$DIOD
DIODES INC /DEL/ Stock $diod

2010 Q4 Form 10-K Financial Statement

#000119312512084918 Filed on February 28, 2012

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$DIOD DIODES INC /DEL/ Stock $diod

2010 Q4 Form 10-K Financial Statement

#000119312512084918 Filed on February 28, 2012

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$DIOD
DIODES INC /DEL/ Stock $diod