$DIOD
DIODES INC /DEL/ Stock $diod

$diod Overview Financials Valuation SEC Filings Company Website

2020 Q4 Form 10-K Financial Statement

#000156459021007008 Filed on February 22, 2021

Income Statement

Concept	2020 Q4	2020 Q2	2020 Q1
Revenue	$350.4M	$288.7M	$280.7M
YoY Change	16.34%	-10.35%	-7.14%
Cost Of Revenue	$227.7M	$187.2M	$184.9M
YoY Change	18.72%	-6.42%	-2.63%
Gross Profit	$122.7M	$101.5M	$95.84M
YoY Change	12.19%	-16.8%	-14.74%
Gross Profit Margin	35.02%	35.16%	34.14%
Selling, General & Admin	$52.80M	$45.40M	$42.22M
YoY Change	19.46%	-4.08%	-3.37%
% of Gross Profit	43.03%	44.73%	44.05%
Research & Development	$24.80M	$21.30M	$23.68M
YoY Change	12.73%	-1.87%	6.8%
% of Gross Profit	20.21%	20.99%	24.71%
Depreciation & Amortization	$27.60M	$26.90M	$22.81M
YoY Change	-2.47%	497.78%	406.87%
% of Gross Profit	22.49%	26.5%	23.8%
Operating Expenses	$82.80M	$70.60M	$65.89M
YoY Change	14.21%	-3.91%	0.05%
Operating Profit	$39.90M	$30.89M	$29.95M
YoY Change	8.23%	-36.33%	-35.67%
Interest Expense	-$7.200M	-$6.100M	-$900.0K
YoY Change	94.59%	-403.33%	-30.77%
% of Operating Profit	-18.05%	-19.75%	-3.01%
Other Income/Expense, Net	$3.500M	-$4.811B	$0.00
YoY Change	75.0%	752795.15%	-100.0%
Pretax Income	$36.10M	$26.06M	$24.96M
YoY Change	-39.43%	-45.57%	-40.63%
Income Tax	$6.000M	$4.670M	$4.556M
% Of Pretax Income	16.62%	17.92%	18.26%
Net Earnings	$29.74M	$21.03M	$20.17M
YoY Change	-36.99%	-42.03%	-36.41%
Net Earnings / Revenue	8.49%	7.29%	7.18%
Basic Earnings Per Share	$0.60	$0.41	$0.39
Diluted Earnings Per Share	$0.59	$0.40	$0.38
COMMON SHARES
Basic Shares Outstanding		51.53M	51.34M
Diluted Shares Outstanding		52.57M	52.42M

Balance Sheet

Concept	2020 Q4	2020 Q2	2020 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments	$274.2M	$506.9M	$272.4M
YoY Change	4.18%	109.46%	-11.53%
Cash & Equivalents	$268.1M	$503.2M	$269.5M
Short-Term Investments	$6.100M	$3.700M	$2.900M
Other Short-Term Assets	$122.7M	$95.20M	$48.10M
YoY Change	145.4%	84.5%	16.46%
Inventory	$307.1M	$255.8M	$307.1M
Prepaid Expenses
Receivables	$320.1M	$268.6M	$243.7M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$1.024B	$1.126B	$796.4M
YoY Change	26.42%	48.88%	1.97%
LONG-TERM ASSETS
Property, Plant & Equipment	$530.8M	$450.6M	$456.1M
YoY Change	13.04%	-4.27%	3.38%
Goodwill	$158.3M	$152.1M	$149.7M
YoY Change	12.04%	9.63%
Intangibles	$110.6M	$118.1M	$121.2M
YoY Change	-7.47%	-9.2%
Long-Term Investments
YoY Change
Other Assets	$97.89M	$71.73M	$42.00M
YoY Change	20.12%	-19.63%	-23.77%
Total Long-Term Assets	$955.5M	$810.7M	$823.9M
YoY Change	15.2%	-5.46%	-0.98%
TOTAL ASSETS
Total Short-Term Assets	$1.024B	$1.126B	$796.4M
Total Long-Term Assets	$955.5M	$810.7M	$823.9M
Total Assets	$1.979B	$1.937B	$1.620B
YoY Change	20.74%	20.01%	0.45%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$168.0M	$138.7M	$112.1M
YoY Change	37.57%	25.51%	4.67%
Accrued Expenses	$160.1M	$103.3M	$87.50M
YoY Change	59.21%	1.57%	1.86%
Deferred Revenue
YoY Change
Short-Term Debt	$140.6M	$63.67M	$13.40M
YoY Change	953.82%	310.76%	8.94%
Long-Term Debt Due	$21.86M	$13.05M	$35.50M
YoY Change	-33.97%	-57.76%	24.99%
Total Short-Term Liabilities	$509.8M	$325.3M	$264.1M
YoY Change	78.66%	18.13%	3.11%
LONG-TERM LIABILITIES
Long-Term Debt	$288.2M	$282.3M	$46.00M
YoY Change	346.82%	98.11%	-75.56%
Other Long-Term Liabilities	$130.8M	$117.7M	$111.5M
YoY Change	8.5%	-6.59%	-16.42%
Total Long-Term Liabilities	$130.8M	$400.0M	$157.5M
YoY Change	8.5%	48.98%	-51.03%
TOTAL LIABILITIES
Total Short-Term Liabilities	$509.8M	$325.3M	$264.1M
Total Long-Term Liabilities	$130.8M	$400.0M	$157.5M
Total Liabilities	$963.3M	$793.8M	$495.2M
YoY Change	97.97%	30.09%	-23.14%
SHAREHOLDERS EQUITY
Retained Earnings
YoY Change
Common Stock	$485.3M
YoY Change	4.96%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$335.9M
YoY Change	789.4%
Treasury Stock Shares
Shareholders Equity	$963.8M	$1.143B	$1.125B
YoY Change
Total Liabilities & Shareholders Equity	$1.979B	$1.937B	$1.620B
YoY Change	20.74%	20.01%	0.45%

Cashflow Statement

Concept	2020 Q4	2020 Q2	2020 Q1
OPERATING ACTIVITIES
Net Income	$29.74M	$21.03M	$20.17M
YoY Change	-36.99%	-42.03%	-36.41%
Depreciation, Depletion And Amortization	$27.60M	$26.90M	$22.81M
YoY Change	-2.47%	497.78%	406.87%
Cash From Operating Activities	$60.80M	$33.00M	$53.68M
YoY Change	16.7%	-18.72%	-23.2%
INVESTING ACTIVITIES
Capital Expenditures	-$27.30M	-$16.50M	$14.21M
YoY Change	21.87%	-48.6%	-23.77%
Acquisitions			-$591.0K
YoY Change
Other Investing Activities	-$27.70M	$100.0K	-$244.0K
YoY Change	-186.29%	-100.3%	-62.92%
Cash From Investing Activities	-$55.00M	-$16.40M	-$17.56M
YoY Change	-661.22%	-74.89%	2.37%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net			$98.88M
YoY Change			19.01%
Cash From Financing Activities	-349.0M	263.2M	-21.40M
YoY Change	1274.02%	-717.84%	-322.26%
NET CHANGE
Cash From Operating Activities	60.80M	33.00M	53.68M
Cash From Investing Activities	-55.00M	-16.40M	-17.56M
Cash From Financing Activities	-349.0M	263.2M	-21.40M
Net Change In Cash	-343.2M	279.8M	11.41M
YoY Change	-1040.27%	-515.75%	-81.14%
FREE CASH FLOW
Cash From Operating Activities	$60.80M	$33.00M	$53.68M
Capital Expenditures	-$27.30M	-$16.50M	$14.21M
Free Cash Flow	$88.10M	$49.50M	$39.47M
YoY Change	18.26%	-31.91%	-22.99%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
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CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.666
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.666
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.666
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y7M6D
CY2020Q4	us-gaap	Allowance For Notes And Loans Receivable Current AllowanceForNotesAndLoansReceivableCurrent	3806000
CY2019Q4	us-gaap	Allowance For Notes And Loans Receivable Current AllowanceForNotesAndLoansReceivableCurrent	4866000
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	51206969
CY2020	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	185067000
CY2019	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	88517000
CY2019	us-gaap	Operating Expenses OperatingExpenses	265199000
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	154482000
CY2020Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	9059000
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2019Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2020Q4	us-gaap	Preferred Stock Value PreferredStockValue
CY2019Q4	us-gaap	Preferred Stock Value PreferredStockValue
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CY2020Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P7M6D
CY2019Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P1Y3M18D
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P1Y4M24D
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	464000
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	192000
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	24.37
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	23.32
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P1Y4M24D
CY2019Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	14849000
CY2020	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	258390000
CY2020Q4	us-gaap	Restricted Cash RestrictedCash	52464000
CY2019Q4	us-gaap	Restricted Cash RestrictedCash	1117000
CY2020Q4	us-gaap	Short Term Investments ShortTermInvestments	6142000
CY2019Q4	us-gaap	Short Term Investments ShortTermInvestments	4825000
CY2019Q4	us-gaap	Liabilities Liabilities	486601000
CY2020Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1.00
CY2020Q4	us-gaap	Goodwill Goodwill	158331000
CY2019Q4	us-gaap	Goodwill Goodwill	141318000
CY2020Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	320061000
CY2019Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	260322000
CY2020Q4	us-gaap	Inventory Net InventoryNet	307062000
CY2019Q4	us-gaap	Inventory Net InventoryNet	236472000
CY2020Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	70193000
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CY2020Q4	us-gaap	Assets Current AssetsCurrent	1023987000
CY2019Q4	us-gaap	Assets Current AssetsCurrent	809959000
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	530815000
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	469574000
CY2020Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	57841000
CY2019Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	17516000
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	110591000
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	119523000
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	97892000
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CY2020Q4	us-gaap	Assets Assets	1979457000
CY2019Q4	us-gaap	Assets Assets	1639384000
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CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	100571000
CY2019Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	16156000
CY2020Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	21860000
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	33105000
CY2020Q4	us-gaap	Liabilities Current LiabilitiesCurrent	509762000
CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	285322000
CY2020Q4	us-gaap	Long Term Loans From Bank LongTermLoansFromBank	288179000
CY2019Q4	us-gaap	Long Term Loans From Bank LongTermLoansFromBank	64401000
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CY2020Q4	us-gaap	Liabilities Liabilities	963334000
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CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000
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CY2018	us-gaap	Amortization Of Acquisition Costs AmortizationOfAcquisitionCosts	18351000
CY2018	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	636000
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CY2018	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-596000
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CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	51206969
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	35692000
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	35111000
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CY2019Q4	us-gaap	Retained Earnings Appropriated RetainedEarningsAppropriated	789958000
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CY2020Q4	diod	Treasury Stock At Cost Issued TreasuryStockAtCostIssued	9259858
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CY2019Q4	us-gaap	Treasury Stock Value TreasuryStockValue	37768000
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-73606000
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CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	963820000
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CY2020Q4	us-gaap	Minority Interest MinorityInterest	52303000
CY2019Q4	us-gaap	Minority Interest MinorityInterest	46359000
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CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1229215000
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1249130000
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1213989000
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CY2019	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	181343000
CY2018	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	176197000
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	198246000
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CY2018	us-gaap	Profit Loss ProfitLoss	105406000
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	865000
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1385000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	153250000
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CY2019	us-gaap	Profit Loss ProfitLoss	154115000
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CY2020	diod	Adjustments To Additional Paid In Capital Decrease In Noncontrolling Interest From Acquisition AdjustmentsToAdditionalPaidInCapitalDecreaseInNoncontrollingInterestFromAcquisition	6155000
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CY2020	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	2099000
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	6830000
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	24177000
CY2020	us-gaap	Adjustments To Additional Paid In Capital Income Tax Deficiency From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalIncomeTaxDeficiencyFromShareBasedCompensation	8302000
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1016123000
CY2020	us-gaap	Profit Loss ProfitLoss	99229000
CY2019	us-gaap	Profit Loss ProfitLoss	154115000
CY2018	us-gaap	Profit Loss ProfitLoss	105406000
CY2020	us-gaap	Depreciation Depreciation	91747000
CY2019	us-gaap	Depreciation Depreciation	91543000
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	29366000
CY2018	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	429000
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-742000
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	29478000
CY2019	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	19271000
CY2018	us-gaap	Depreciation Depreciation	86291000
CY2020	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1455000
CY2019	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	521000
CY2018	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	522000
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	25260000
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	20535000
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	20736000
CY2020	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-119000
CY2019	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	24429000
CY2018	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	636000
CY2020	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	14456000
CY2019	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-9904000
CY2018	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-3674000
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	949000
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	187000
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	2335000
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	10501000
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	30775000
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	4560000
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	11325000
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	2154000
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	9067000
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	6630000
CY2018	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	11119000
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	7422000
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	3513000
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	9977000
CY2020	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-9198000
CY2019	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	7369000
CY2018	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-13445000
CY2020	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-2182000
CY2019	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-2694000
CY2018	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	345000
CY2020	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-3359000
CY2019	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	271000
CY2018	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-571000
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	187220000
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	229772000
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	185566000
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	24593000
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	33028000
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	41000
CY2020	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	11486000
CY2018	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	15901000
CY2020	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	10277000
CY2019	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	21847000
CY2018	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	12576000
CY2020	us-gaap	Payments To Acquire Available For Sale Securities Equity PaymentsToAcquireAvailableForSaleSecuritiesEquity	6131000
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	75813000
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	98505000
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	87507000
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	835000
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-1500000
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-106772000
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	232000
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	6830000
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	11901000
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	4862000
CY2018	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	6255000
CY2018	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	2694000
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	296705000
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	8302000
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-100426000
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-88944000
CY2020	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	77483000
CY2019	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	9954000
CY2018	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	9151000
CY2020	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	40498000
CY2019	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	7362000
CY2018	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	2797000
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	956363000
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	405540000
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	744237000
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	522860000
CY2018	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	522473000
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	223000
CY2020	diod	Proceeds From Repayments Of Finance Lease Obligations ProceedsFromRepaymentsOfFinanceLeaseObligations	919000
CY2019	diod	Proceeds From Repayments Of Finance Lease Obligations ProceedsFromRepaymentsOfFinanceLeaseObligations	1082000
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	4432000
CY2018	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	11294000
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	262000
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-50000
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	225000
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-54302000
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-112432000
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-51911000
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	34876000
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	760000
CY2018	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	-8078000
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	61022000
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	17674000
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	36633000
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	241833000
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	205200000
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	320529000
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	259507000
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	241833000
CY2020	us-gaap	Interest Paid Net InterestPaidNet	10219000
CY2019	us-gaap	Interest Paid Net InterestPaidNet	7235000
CY2018	us-gaap	Interest Paid Net InterestPaidNet	9962000
CY2020	us-gaap	Income Taxes Paid IncomeTaxesPaid	48040000
CY2019	us-gaap	Income Taxes Paid IncomeTaxesPaid	37158000
CY2018	us-gaap	Income Taxes Paid IncomeTaxesPaid	33265000
CY2020	diod	Payments To Proceeds From Capital Expenditure Incurred But Not Yet Paid PaymentsToProceedsFromCapitalExpenditureIncurredButNotYetPaid	7297000
CY2020Q4	diod	Accumulated Other Comprehensive Income Loss Unrealized Foreign Currency Gain Losses Net Of Tax AccumulatedOtherComprehensiveIncomeLossUnrealizedForeignCurrencyGainLossesNetOfTax	-21614000
CY2019Q4	diod	Accumulated Other Comprehensive Income Loss Unrealized Foreign Currency Gain Losses Net Of Tax AccumulatedOtherComprehensiveIncomeLossUnrealizedForeignCurrencyGainLossesNetOfTax	-63053000
CY2019	diod	Payments To Proceeds From Capital Expenditure Incurred But Not Yet Paid PaymentsToProceedsFromCapitalExpenditureIncurredButNotYetPaid	10167000
CY2018	diod	Payments To Proceeds From Capital Expenditure Incurred But Not Yet Paid PaymentsToProceedsFromCapitalExpenditureIncurredButNotYetPaid	12598000
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	268065000
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	258390000
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	241053000
CY2020Q4	us-gaap	Restricted Cash Equivalents Current RestrictedCashEquivalentsCurrent	52464000
CY2019Q4	us-gaap	Restricted Cash Equivalents Current RestrictedCashEquivalentsCurrent	1117000
CY2018Q4	us-gaap	Restricted Cash Equivalents Current RestrictedCashEquivalentsCurrent	780000
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	320529000
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	259507000
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	241833000
CY2020	us-gaap	Use Of Estimates UseOfEstimates	<p style="text-align:justify;margin-bottom:0pt;margin-top:12pt;text-indent:4.17%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Use of estimates –<span style="font-weight:normal;"> The preparation of financial statements in conformity with generally accepted accounting principles in the United States of America (“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.</span></p>
CY2020	diod	Sales Returns And Other Allowances SalesReturnsAndOtherAllowances	194700000
CY2019	diod	Sales Returns And Other Allowances SalesReturnsAndOtherAllowances	163900000
CY2018	diod	Sales Returns And Other Allowances SalesReturnsAndOtherAllowances	158800000
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	3800000
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	4900000
CY2020	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0
CY2018	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0
CY2020Q4	us-gaap	Business Acquisition Percentage Of Voting Interests Acquired BusinessAcquisitionPercentageOfVotingInterestsAcquired	1
CY2020	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-9800000
CY2018	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-3700000
CY2019	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-3700000
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-73600000
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-108100000
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-101800000
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	137000
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	101000
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1103000
CY2020Q4	us-gaap	Short Term Investments ShortTermInvestments	6142000
CY2020Q4	diod	Accumulated Other Comprehensive Income Loss Unrealized Gain Losses On Cross Currency And Interest Rate Swaps Net Of Tax AccumulatedOtherComprehensiveIncomeLossUnrealizedGainLossesOnCrossCurrencyAndInterestRateSwapsNetOfTax	-3574000
CY2019Q4	diod	Accumulated Other Comprehensive Income Loss Unrealized Gain Losses On Cross Currency And Interest Rate Swaps Net Of Tax AccumulatedOtherComprehensiveIncomeLossUnrealizedGainLossesOnCrossCurrencyAndInterestRateSwapsNetOfTax	-391000
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	-48418000
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	-44695000
CY2020	us-gaap	Reclassifications Reclassifications	<p style="text-align:justify;margin-bottom:0pt;margin-top:0pt;text-indent:4.17%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Reclassifications <span style="font-weight:normal;">– Certain immaterial amounts from prior periods have been reclassified to conform to the current years’ presentation.</span></p>
CY2020	us-gaap	Earnings Per Share Reconciliation Disclosure EarningsPerShareReconciliationDisclosure	Basic earnings per share is calculated by dividing net earnings attributable to common stockholders by the weighted-average number of shares of common stock outstanding during the period. Diluted earnings per share is calculated similarly but includes potential dilution from the exercise of stock options and stock awards, except when the effect would be anti-dilutive.
CY2020	us-gaap	Net Income Loss NetIncomeLoss	98088000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	153250000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	104021000
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	51004000
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50787000
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	49841000
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1129000
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1073000
CY2018	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1094000
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	52133000
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	51860000
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	50935000
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.92
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.02
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.09
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.88
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.96
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.04
CY2020Q4	us-gaap	Long Term Investments LongTermInvestments	18295000
CY2020Q4	us-gaap	Deferred Compensation Plan Assets DeferredCompensationPlanAssets	12829000
CY2019Q4	us-gaap	Short Term Investments ShortTermInvestments	4825000
CY2019Q4	us-gaap	Deferred Compensation Plan Assets DeferredCompensationPlanAssets	12912000
CY2020Q4	us-gaap	Inventory Net InventoryNet	307062000
CY2019Q4	us-gaap	Inventory Net InventoryNet	236472000
CY2020Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	85506000
CY2019Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	62900000
CY2020Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	73466000
CY2019Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	55082000
CY2020Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	148090000
CY2019Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	118490000
CY2020Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	267700000
CY2019Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	228522000
CY2020Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	942405000
CY2019Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	863771000
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1210105000
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1092293000
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	791348000
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	706658000
CY2020Q4	diod	Property Plant And Equipment Net Excluding Cip And Land PropertyPlantAndEquipmentNetExcludingCipAndLand	418757000
CY2019Q4	diod	Property Plant And Equipment Net Excluding Cip And Land PropertyPlantAndEquipmentNetExcludingCipAndLand	385635000
CY2020Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	45060000
CY2019Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	30747000
CY2020Q4	us-gaap	Land Land	66998000
CY2019Q4	us-gaap	Land Land	53192000
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	530815000
CY2019Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	254858000
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	469574000
CY2020	us-gaap	Depreciation Depreciation	91700000
CY2019	us-gaap	Depreciation Depreciation	91500000
CY2018	us-gaap	Depreciation Depreciation	86000000
CY2019Q4	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	24300000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	245176000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	140710000
CY2020Q4	diod	Finite Lived Intangible Assets Cumulative Currency Translation FiniteLivedIntangibleAssetsCumulativeCurrencyTranslation	7781000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	96685000
CY2020Q4	diod	Indefinite Lived Intangible Assets Excluding Goodwill Gross IndefiniteLivedIntangibleAssetsExcludingGoodwillGross	14883000
CY2020Q4	diod	Indefinite Lived Intangible Assets Cumulative Currency Translation IndefiniteLivedIntangibleAssetsCumulativeCurrencyTranslation	977000
CY2020Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	13906000
CY2020Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	260059000
CY2020Q4	diod	Intangible Assets Accumulated Amortization IntangibleAssetsAccumulatedAmortization	140710000
CY2020Q4	diod	Intangible Assets Currency Translation IntangibleAssetsCurrencyTranslation	8758000
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	110591000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	239975000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	124452000
CY2019Q4	diod	Finite Lived Intangible Assets Cumulative Currency Translation FiniteLivedIntangibleAssetsCumulativeCurrencyTranslation	9842000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	105681000
CY2019Q4	diod	Indefinite Lived Intangible Assets Excluding Goodwill Gross IndefiniteLivedIntangibleAssetsExcludingGoodwillGross	14883000
CY2019Q4	diod	Indefinite Lived Intangible Assets Cumulative Currency Translation IndefiniteLivedIntangibleAssetsCumulativeCurrencyTranslation	1041000
CY2019Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	13842000
CY2019Q4	diod	Intangible Assets Accumulated Amortization IntangibleAssetsAccumulatedAmortization	124452000
CY2019Q4	diod	Intangible Assets Currency Translation IntangibleAssetsCurrencyTranslation	10883000
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	119523000
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	16300000
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	18000000.0
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	18400000
CY2020	us-gaap	Acquired Finite Lived Intangible Assets Weighted Average Useful Life AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife	P9Y9M18D
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	16606000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	15981000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	15716000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	15359000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	14483000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	18540000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	96685000
CY2019	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	1959000
CY2019Q4	us-gaap	Goodwill Goodwill	141318000
CY2020	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	3051000
CY2020Q4	us-gaap	Goodwill Goodwill	158331000
CY2020Q2	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	500000000
CY2020Q2	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	670000000
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	312247000
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	98641000
CY2020Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	21860000
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	33105000
CY2020Q4	us-gaap	Deferred Finance Costs Current Gross DeferredFinanceCostsCurrentGross	2208000
CY2019Q4	us-gaap	Deferred Finance Costs Current Gross DeferredFinanceCostsCurrentGross	1135000
CY2020Q4	us-gaap	Long Term Loans From Bank LongTermLoansFromBank	288179000
CY2019Q4	us-gaap	Long Term Loans From Bank LongTermLoansFromBank	64401000
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	21861000
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	22333000
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	250181000
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	13636000
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	4236000
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	312247000
CY2020	us-gaap	Operating Lease Expense OperatingLeaseExpense	15111000
CY2019	us-gaap	Operating Lease Expense OperatingLeaseExpense	14824000
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	836000
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	978000
CY2020	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	14000
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	48000
CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	525000
CY2019	us-gaap	Short Term Lease Cost ShortTermLeaseCost	336000
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	2940000
CY2019	us-gaap	Variable Lease Cost VariableLeaseCost	2663000
CY2020	us-gaap	Lease Cost LeaseCost	19426000
CY2019	us-gaap	Lease Cost LeaseCost	18849000
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	54457000
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	57427000
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	10663000
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	12554000
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	27041000
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	27545000
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	37704000
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	40099000
CY2020Q4	diod	Finance Lease Right Of Use Asset Gross FinanceLeaseRightOfUseAssetGross	2507000
CY2019Q4	diod	Finance Lease Right Of Use Asset Gross FinanceLeaseRightOfUseAssetGross	3396000
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset Accumulated Amortization FinanceLeaseRightOfUseAssetAccumulatedAmortization	2298000
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset Accumulated Amortization FinanceLeaseRightOfUseAssetAccumulatedAmortization	1924000
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	209000
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	1472000
CY2020Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	149000
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	903000
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	24000
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	138000
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	173000
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	1041000
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.040
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.038
CY2020Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.031
CY2019Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.030
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	15943000
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	18325000
CY2020	diod	Finance Lease Payments FinanceLeasePayments	19000
CY2019	diod	Finance Lease Payments FinanceLeasePayments	48000
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	919000
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1082000
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	6339000
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	3956000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	11842000
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	151000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	9993000
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	12000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	5626000
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	10000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	3102000
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	2000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	2999000
CY2020Q4	diod	Lessee Operating Lease Liability Payments Due Year Six LesseeOperatingLeaseLiabilityPaymentsDueYearSix	2585000
CY2020Q4	diod	Lessee Operating Lease Liability Payments Due Year Seven And Thereafter LesseeOperatingLeaseLiabilityPaymentsDueYearSevenAndThereafter	8648000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	44795000
CY2020Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	175000
CY2020Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	7091000
CY2020Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	2000
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	37704000
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	10663000
CY2020Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	149000
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	27041000
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	24000
CY2020Q4	diod	Accrued Expenses Current AccruedExpensesCurrent	60322000
CY2019Q4	diod	Accrued Expenses Current AccruedExpensesCurrent	30761000
CY2020Q4	diod	Compensation And Payroll Taxes Current CompensationAndPayrollTaxesCurrent	48748000
CY2019Q4	diod	Compensation And Payroll Taxes Current CompensationAndPayrollTaxesCurrent	34043000
CY2020Q4	diod	Equipment Purchases Current EquipmentPurchasesCurrent	7297000
CY2019Q4	diod	Equipment Purchases Current EquipmentPurchasesCurrent	10167000
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	10663000
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	12554000
CY2020Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	149000
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	903000
CY2020Q4	diod	Accrued Pricing Adjustments Current AccruedPricingAdjustmentsCurrent	7891000
CY2019Q4	diod	Accrued Pricing Adjustments Current AccruedPricingAdjustmentsCurrent	5617000
CY2020Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	3708000
CY2019Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	3258000
CY2020Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	7858000
CY2019Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	2972000
CY2020Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	13481000
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	296000
CY2020Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	160117000
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	100571000
CY2020Q4	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	35316000
CY2019Q4	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	28795000
CY2020Q4	diod	Unrecognized Tax Benefits Net Of Portion Used To Reduce Deferred Tax Asset UnrecognizedTaxBenefitsNetOfPortionUsedToReduceDeferredTaxAsset	27965000
CY2019Q4	diod	Unrecognized Tax Benefits Net Of Portion Used To Reduce Deferred Tax Asset UnrecognizedTaxBenefitsNetOfPortionUsedToReduceDeferredTaxAsset	28215000
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	27041000
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	27545000
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	24000
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	138000
CY2020Q4	diod	Deferred Grants And Subsidy Liability Noncurrent DeferredGrantsAndSubsidyLiabilityNoncurrent	11924000
CY2019Q4	diod	Deferred Grants And Subsidy Liability Noncurrent DeferredGrantsAndSubsidyLiabilityNoncurrent	12774000
CY2020Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	14833000
CY2019Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	12166000
CY2020Q4	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	8787000
CY2019Q4	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	8631000
CY2020Q4	diod	Other Liability Noncurrent OtherLiabilityNoncurrent	4905000
CY2019Q4	diod	Other Liability Noncurrent OtherLiabilityNoncurrent	2281000
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	130795000
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	120545000
CY2020	us-gaap	Other Restrictions On Payment Of Dividends OtherRestrictionsOnPaymentOfDividends	Our U.S. Credit Facility permits us to pay dividends up to $25.0 million per fiscal year to its stockholders so long as we have not defaulted under the U.S. Credit Facility at the time of such dividend and no default would result from declaring or paying such dividend.
CY2020	diod	Maximum Annual Dividend Payable On Credit Facility Conditions MaximumAnnualDividendPayableOnCreditFacilityConditions	25000000.0
CY2020	us-gaap	Stock Repurchase Program Expiration Date StockRepurchaseProgramExpirationDate	2019-12-31
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	45526000
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	73352000
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-24141000
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	74815000
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	124894000
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	174103000
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	120341000
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	198246000
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	149962000
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	631000
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	259000
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	17115000
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	28829000
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	42726000
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	56000
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	92000
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	24000
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	17802000
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	29180000
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	42750000
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	6411000
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	886000
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	2400000
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-6210000
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	11994000
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-3107000
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	65000
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	30000
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	56000
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	266000
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	12910000
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-651000
CY2020	diod	Income Tax Liability For Unrecognized Tax Expense Benefit IncomeTaxLiabilityForUnrecognizedTaxExpenseBenefit	3044000
CY2019	diod	Income Tax Liability For Unrecognized Tax Expense Benefit IncomeTaxLiabilityForUnrecognizedTaxExpenseBenefit	2041000
CY2018	diod	Income Tax Liability For Unrecognized Tax Expense Benefit IncomeTaxLiabilityForUnrecognizedTaxExpenseBenefit	2457000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	21112000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	44131000
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	44556000
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	25272000
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	41632000
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	31488000
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-378000
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.003
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1389000
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.007
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-375000
CY2018	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.003
CY2020	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	81000
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.001
CY2019	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-5786000
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.029
CY2018	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-2844000
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.019
CY2020	diod	Income Tax Reconciliation Foreign Operations IncomeTaxReconciliationForeignOperations	-3031000
CY2020	diod	Effective Income Tax Rate Reconciliation Foreign Operations EffectiveIncomeTaxRateReconciliationForeignOperations	-0.025
CY2019	diod	Income Tax Reconciliation Foreign Operations IncomeTaxReconciliationForeignOperations	-3340000
CY2019	diod	Effective Income Tax Rate Reconciliation Foreign Operations EffectiveIncomeTaxRateReconciliationForeignOperations	-0.017
CY2018	diod	Income Tax Reconciliation Foreign Operations IncomeTaxReconciliationForeignOperations	4140000
CY2018	diod	Effective Income Tax Rate Reconciliation Foreign Operations EffectiveIncomeTaxRateReconciliationForeignOperations	0.028
CY2020	diod	Income Tax Reconciliation Foreign Operations Foreign Withholding Taxes IncomeTaxReconciliationForeignOperationsForeignWithholdingTaxes	-1798000
CY2020	diod	Effective Income Tax Rate Reconciliation Foreign Withholding Taxes EffectiveIncomeTaxRateReconciliationForeignWithholdingTaxes	-0.015
CY2019	diod	Income Tax Reconciliation Foreign Operations Foreign Withholding Taxes IncomeTaxReconciliationForeignOperationsForeignWithholdingTaxes	22685000
CY2019	diod	Effective Income Tax Rate Reconciliation Foreign Withholding Taxes EffectiveIncomeTaxRateReconciliationForeignWithholdingTaxes	0.114
CY2018	diod	Income Tax Reconciliation Foreign Operations Foreign Withholding Taxes IncomeTaxReconciliationForeignOperationsForeignWithholdingTaxes	10962000
CY2018	diod	Effective Income Tax Rate Reconciliation Foreign Withholding Taxes EffectiveIncomeTaxRateReconciliationForeignWithholdingTaxes	0.073
CY2020	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	4210000
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.035
CY2019	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	3686000
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.019
CY2018	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	3541000
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.024
CY2020	diod	Income Tax Liability For Unrecognized Tax Expense Benefit IncomeTaxLiabilityForUnrecognizedTaxExpenseBenefit	3044000
CY2020	diod	Effective Income Tax Rate Reconciliation Unrecognized Tax Expenses Benefits EffectiveIncomeTaxRateReconciliationUnrecognizedTaxExpensesBenefits	0.025
CY2019	diod	Income Tax Liability For Unrecognized Tax Expense Benefit IncomeTaxLiabilityForUnrecognizedTaxExpenseBenefit	2041000
CY2019	diod	Effective Income Tax Rate Reconciliation Unrecognized Tax Expenses Benefits EffectiveIncomeTaxRateReconciliationUnrecognizedTaxExpensesBenefits	0.010
CY2018	diod	Income Tax Liability For Unrecognized Tax Expense Benefit IncomeTaxLiabilityForUnrecognizedTaxExpenseBenefit	2457000
CY2018	diod	Effective Income Tax Rate Reconciliation Unrecognized Tax Expenses Benefits EffectiveIncomeTaxRateReconciliationUnrecognizedTaxExpensesBenefits	0.016
CY2020	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	2199000
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.018
CY2019	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-10563000
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.053
CY2018	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-379000
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.003
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-660000
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.005
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-52000
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-2154000
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.014
CY2018	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	2762000
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.018
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	593000
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.005
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-189000
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.001
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	2040000
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.014
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	21112000
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.175
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	44131000
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.223
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	44556000
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.297
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	35652000
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	32209000
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	30581000
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	7495000
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	9274000
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	4667000
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	4952000
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	39000
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	5633000
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	5870000
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	3039000
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	42466000
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	35652000
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	32209000
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	42500000
CY2020Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	40300000
CY2020	us-gaap	Significant Change In Unrecognized Tax Benefits Nature Of Event SignificantChangeInUnrecognizedTaxBenefitsNatureOfEvent	It is reasonably possible that the amount of the unrecognized benefit with respect to certain of our unrecognized tax positions will significantly increase or decrease within the next 12 months.
CY2020	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.
CY2020	us-gaap	Income Tax Examination Description IncomeTaxExaminationDescription	We file income tax returns in the U.S. federal jurisdiction and in various state and foreign jurisdictions. We are no longer subject to U.S. federal income tax examinations by tax authorities for tax years before 2012 or tax year 2015. We are no longer subject to China income tax examinations by tax authorities for tax years before 2010. With respect to state and local jurisdictions and countries outside of the U.S., with limited exceptions, we are no longer subject to income tax audits for years before 2015. Although the outcome of tax audits is always uncertain, we believe that adequate amounts of tax, interest and penalties, if any, have been provided for in our reserve for any adjustments that may result from future tax audits. We recognize accrued interest and penalties, if any, related to unrecognized tax benefits in interest expense. We had an immaterial amount of accrued interest and penalties at December 31, 2020, 2019 and 2018.
CY2020Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	15154000
CY2019Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	10423000
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	5294000
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	4420000
CY2019Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	5848000
CY2020Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Research DeferredTaxAssetsTaxCreditCarryforwardsResearch	15807000
CY2019Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Research DeferredTaxAssetsTaxCreditCarryforwardsResearch	16263000
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Subject To Expiration DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration	42734000
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Subject To Expiration DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration	24139000
CY2020Q4	diod	Deferred Tax Assets Lease Obligations DeferredTaxAssetsLeaseObligations	2982000
CY2019Q4	diod	Deferred Tax Assets Lease Obligations DeferredTaxAssetsLeaseObligations	3773000
CY2020Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	162000
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	6386000
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	4629000
CY2020Q4	diod	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost Non Current DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCostNonCurrent	8810000
CY2019Q4	diod	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost Non Current DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCostNonCurrent	7805000
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	97329000
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	77300000
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	45591000
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	29414000
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	51738000
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	47886000
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	13816000
CY2020Q4	diod	Deferred Tax Liabilities Right Of Use Assets DeferredTaxLiabilitiesRightOfUseAssets	2936000
CY2019Q4	diod	Deferred Tax Liabilities Right Of Use Assets DeferredTaxLiabilitiesRightOfUseAssets	4008000
CY2020Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	13467000
CY2019Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	23648000
CY2020Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	16403000
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	41472000
CY2020Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	35335000
CY2019Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	6414000
CY2020Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	35300000
CY2019Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	6400000
CY2020Q4	us-gaap	Tax Credit Carryforward Valuation Allowance TaxCreditCarryforwardValuationAllowance	8000000
CY2019Q4	us-gaap	Tax Credit Carryforward Valuation Allowance TaxCreditCarryforwardValuationAllowance	8000000
CY2020Q4	us-gaap	Operating Loss Carryforwards Valuation Allowance OperatingLossCarryforwardsValuationAllowance	32000000
CY2019Q4	us-gaap	Operating Loss Carryforwards Valuation Allowance OperatingLossCarryforwardsValuationAllowance	19000000
CY2020Q4	us-gaap	Statutory Accounting Practices Retained Earnings Not Available For Dividends StatutoryAccountingPracticesRetainedEarningsNotAvailableForDividends	287000000
CY2020Q4	diod	Additional Tax On Undistributed Foreign Earnings AdditionalTaxOnUndistributedForeignEarnings	45000000
CY2020	us-gaap	Income Tax Holiday Aggregate Dollar Amount IncomeTaxHolidayAggregateDollarAmount	900000
CY2019	us-gaap	Income Tax Holiday Aggregate Dollar Amount IncomeTaxHolidayAggregateDollarAmount	3100000
CY2018	us-gaap	Income Tax Holiday Aggregate Dollar Amount IncomeTaxHolidayAggregateDollarAmount	1600000
CY2020	diod	Income Tax Holiday Income Tax Benefits Per Share Diluted IncomeTaxHolidayIncomeTaxBenefitsPerShareDiluted	0.02
CY2020	diod	Income Tax Holiday Income Tax Benefits Per Share Basic IncomeTaxHolidayIncomeTaxBenefitsPerShareBasic	0.02
CY2019	diod	Income Tax Holiday Income Tax Benefits Per Share Basic IncomeTaxHolidayIncomeTaxBenefitsPerShareBasic	0.06
CY2019	diod	Income Tax Holiday Income Tax Benefits Per Share Diluted IncomeTaxHolidayIncomeTaxBenefitsPerShareDiluted	0.06
CY2018	diod	Income Tax Holiday Income Tax Benefits Per Share Basic IncomeTaxHolidayIncomeTaxBenefitsPerShareBasic	0.03
CY2018	diod	Income Tax Holiday Income Tax Benefits Per Share Diluted IncomeTaxHolidayIncomeTaxBenefitsPerShareDiluted	0.03
CY2018Q4	diod	Defined Benefit Plan Equalization Benefit Interest Percentage On Base Rate DefinedBenefitPlanEqualizationBenefitInterestPercentageOnBaseRate	0.01
CY2018Q4	diod	Defined Benefit Plan Equalization Amount DefinedBenefitPlanEqualizationAmount	500000
CY2018Q4	diod	Defined Benefit Plan Equalization Amount DefinedBenefitPlanEqualizationAmount	700000
CY2018Q4	us-gaap	Foreign Currency Exchange Rate Translation1 ForeignCurrencyExchangeRateTranslation1	1
CY2020	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	257000
CY2019	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	256000
CY2020	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	3035000
CY2019	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	4069000
CY2020	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-2100000
CY2019	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-1546000
CY2020	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	7405000
CY2019	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	7511000
CY2020	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	56000
CY2019	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	55000
CY2020	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	-1957000
CY2019	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	-1585000
CY2020Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	27400000
CY2020	diod	Defined Benefit Plan Recognized Gain Loss Increase Decrease DefinedBenefitPlanRecognizedGainLossIncreaseDecrease	5300000
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	5100000
CY2020	diod	Defined Benefit Plan Amortization Of Net Gains Losses Average Term DefinedBenefitPlanAmortizationOfNetGainsLossesAverageTerm	P10Y6M
CY2020Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	4566000
CY2020Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	4945000
CY2020Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	5339000
CY2020Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	5688000
CY2020Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	5759000
CY2020Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	30859000
CY2020	us-gaap	Defined Benefit Plan Estimated Future Employer Contributions In Current Fiscal Year Description DefinedBenefitPlanEstimatedFutureEmployerContributionsInCurrentFiscalYearDescription	The trustees are required to review the funding position every three years. An actuarial valuation was performed as of March 31, 2019, resulting in a deficit of approximately GBP 26.7 million (approximately $34.7 million based on a GBP: USD exchange rate of 1:1.3). As a result of this valuation we have agreed to a revised schedule of contributions of GBP 2.0 million (approximately $2.6 million based on a GBP: USD exchange rate of 1:1.3 ) to be paid in annual installments with effect from April 1, 2020 to address the deficit revealed by the valuation (with the first payment made by March 31, 2021, and payments to be made by December 31 each year thereafter). These contributions, together with the assumed asset outperformance, are expected to eliminate the deficit by December 31, 2028. Further, we will pay GBP 0.2 million in annual installments effective April 1, 2020 to cover expenses.
CY2019Q1	diod	Unfunded Liability Of Defined Benefit Plan Deficit UnfundedLiabilityOfDefinedBenefitPlanDeficit	26700000
CY2019Q1	diod	Unfunded Liability Of Defined Benefit Plan Deficit UnfundedLiabilityOfDefinedBenefitPlanDeficit	34700000
CY2019Q1	us-gaap	Foreign Currency Exchange Rate Translation1 ForeignCurrencyExchangeRateTranslation1	1
CY2020Q4	diod	Defined Benefit Plan Annual Future Benefit Payments DefinedBenefitPlanAnnualFutureBenefitPayments	2000000.0
CY2020Q4	diod	Defined Benefit Plan Annual Future Benefit Payments DefinedBenefitPlanAnnualFutureBenefitPayments	2600000
CY2020Q4	us-gaap	Foreign Currency Exchange Rate Translation1 ForeignCurrencyExchangeRateTranslation1	1
CY2020Q4	diod	Defined Benefit Plan Additional Annual Future Benefit Payments DefinedBenefitPlanAdditionalAnnualFutureBenefitPayments	200000
CY2019	us-gaap	Defined Benefit Plan Narrative Description Of Basis Used To Determine Overall Expected Long Term Rate Of Return On Assets Assumption DefinedBenefitPlanNarrativeDescriptionOfBasisUsedToDetermineOverallExpectedLongTermRateOfReturnOnAssetsAssumption	The overall strategy is designed to return a long-term return of 2.6% p.a. above the liability benchmark which is broadly equal to changes in the plan’s liabilities.
CY2019	diod	Defined Benefit Plan Plan Assets Expected Long Term Rate Of Return Above Liability Benchmark DefinedBenefitPlanPlanAssetsExpectedLongTermRateOfReturnAboveLiabilityBenchmark	0.026
CY2020Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	147861000
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	10200000
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	16300000
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	17000000.0
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	25260000
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	20535000
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	20736000
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	25260000
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	20535000
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	20736000
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	8693000
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	524000
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	22.68
CY2019Q4	diod	Share Based Compensation Arrangement By Share Based Payment Award Options Exercised Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisedIntrinsicValue	10600000
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	464000
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	24.37
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	14849000
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Method Used ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsMethodUsed	Share-based compensation expense for stock options granted in previous years was calculated on the date of grant using the Black-Scholes-Merton option-pricing model
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	6800000
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	11900000
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	4900000
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1228000
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	22.85
CY2018	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	240000
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	20.28
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	988000
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	23.47
CY2020	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	272000
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	25.11
CY2020Q4	diod	Share Based Compensation Arrangement By Share Based Payment Award Options Exercised Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisedIntrinsicValue	8278000
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	192000
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	23.32
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	9059000
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	2280000
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	22.24
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	646000
CY2018	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	32.06
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	1213000
CY2018	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	21.39
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	46000
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	24.72
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	1667000
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	26.68
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	670000
CY2019	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	38.15
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	573000
CY2019	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	24.90
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	67000
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	30.44
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	1697000
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	31.71
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1249130000
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1213989000
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	573000
CY2020	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	48.83
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	770000
CY2020	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	27.78
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Aggregate Intrinsic Value Vested SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueVested	37620000
CY2020	diod	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited And Other In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedAndOtherInPeriod	88000
CY2020	diod	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures And Other Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresAndOtherWeightedAverageGrantDateFairValue	38.31
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	1588000
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	39.30
CY2020Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Aggregate Intrinsic Value Nonvested SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested	111947000
CY2020Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	44800000
CY2020	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y2M12D
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	37600
CY2020	diod	Customer Concentration Number Of Customers CustomerConcentrationNumberOfCustomers	0
CY2019	diod	Customer Concentration Number Of Customers CustomerConcentrationNumberOfCustomers	1
CY2018	diod	Customer Concentration Number Of Customers CustomerConcentrationNumberOfCustomers	1
CY2020	diod	Customer Concentration Number Of Customers Did Not Equal Ten Percent Or Greater Of Accounts Receivable CustomerConcentrationNumberOfCustomersDidNotEqualTenPercentOrGreaterOfAccountsReceivable	0
CY2019	diod	Customer Concentration Number Of Customers Did Not Equal Ten Percent Or Greater Of Accounts Receivable CustomerConcentrationNumberOfCustomersDidNotEqualTenPercentOrGreaterOfAccountsReceivable	0
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1229215000
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	530815000
CY2020Q4	us-gaap	Assets Assets	1979457000
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1249130000
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	469574000
CY2019Q4	us-gaap	Assets Assets	1639384000
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1213989000
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	446835000
CY2018Q4	us-gaap	Assets Assets	1526371000
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1229215000
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1229215000
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1249130000
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1213989000
CY2020	us-gaap	Objectives For Using Derivative Instruments ObjectivesForUsingDerivativeInstruments	The Company’s objectives in using interest rate derivatives are to add stability to interest expense and to manage its exposure to interest rate movements. To accomplish this objective, the Company primarily uses interest rate swaps, including interest rate collars, as part of its interest rate risk management strategy. Interest rate swaps designated as cash flow hedges involve the receipt of variable amounts from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount.
CY2020Q4	us-gaap	Purchase Commitment Remaining Minimum Amount Committed PurchaseCommitmentRemainingMinimumAmountCommitted	21900000
CY2020	us-gaap	Long Term Purchase Commitment Amount LongTermPurchaseCommitmentAmount	53000000.0
CY2020	us-gaap	Derivative Instruments Gain Loss Reclassification From Accumulated Oci To Income Estimated Net Amount To Be Transferred DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimatedNetAmountToBeTransferred	-500000
CY2020Q4	diod	Derivatives Net Assets Position Aggregate Fair Value DerivativesNetAssetsPositionAggregateFairValue	1600000
CY2019Q4	diod	Derivatives Net Assets Position Aggregate Fair Value DerivativesNetAssetsPositionAggregateFairValue	100000
CY2020Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	0
CY2019Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	0
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	21033000
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	27152000
CY2020Q4	us-gaap	Net Income Loss NetIncomeLoss	29735000
CY2020Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.39
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.41
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.52
CY2020Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	280717000
CY2020Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	288669000
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	309459000
CY2020Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	350370000
CY2020Q1	us-gaap	Gross Profit GrossProfit	95842000
CY2020Q2	us-gaap	Gross Profit GrossProfit	101492000
CY2020Q3	us-gaap	Gross Profit GrossProfit	111090000
CY2020Q4	us-gaap	Gross Profit GrossProfit	122697000
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	20168000
CY2020Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.60
CY2020Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.38
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.40
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.51
CY2020Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.59
CY2019Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	302293000
CY2019Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	322006000
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	323674000
CY2019Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	301157000
CY2019Q1	us-gaap	Gross Profit GrossProfit	112411000
CY2019Q2	us-gaap	Gross Profit GrossProfit	121988000
CY2019Q3	us-gaap	Gross Profit GrossProfit	122046000
CY2019Q4	us-gaap	Gross Profit GrossProfit	109362000
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	31716000
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	36284000
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	38060000
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	47190000
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.63
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.72
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.75
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.90
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.62
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.70
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.73
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.90

Files In Submission

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0001564590-21-007008-index-headers.html	Edgar Link	pending
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0001564590-21-007008.txt	Edgar Link	pending
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$DIOD
DIODES INC /DEL/ Stock $diod

2020 Q4 Form 10-K Financial Statement

#000156459021007008 Filed on February 22, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$DIOD DIODES INC /DEL/ Stock $diod

2020 Q4 Form 10-K Financial Statement

#000156459021007008 Filed on February 22, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$DIOD
DIODES INC /DEL/ Stock $diod