Related party ownership of common stock of the company.

No definition available.

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Balance Type:	na
Period Type:	instant

- Definition

Related party transaction revenues percentage from transactions with related party.

+ References

No definition available.

+ Details

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Namespace Prefix:	diod_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

A description of the related party transaction, including transactions to which no amounts or nominal amounts were ascribed and such other information deemed necessary to an understanding of the effects of the transactions on the financial statements. Examples of common related party transactions are, sales, purchases and transfers of realty and personal property, services received or furnished, loans and leases to and from top management and affiliates.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
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-Section 50
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-Publisher FASB
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-Publisher FASB
-Name Accounting Standards Codification
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-Section S99
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-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=diod_KeylinkMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=diod_YaGuangMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=diod_AssemblyAndTestFacilityOneMember
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Data Type:	na
Balance Type:
Period Type:

- Details

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Related Parties - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Lite On Semiconductor
Related Party Transaction [Line Items]
Related Party ownership of common stock	15.00%		15.00%
Related Party Transaction, Description of Transaction			LSC was also our largest stockholder, owning approximately 15% of our outstanding Common Stock., prior to the close of the acquisition of LSC by Diodes.
Keylink
Related Party Transaction [Line Items]
Related Party ownership of common stock	5.00%		5.00%
Related Party Transaction, Description of Transaction			Keylink is our 5% joint venture partner in our Shanghai assembly and test facilities.
Related Party Transaction Revenues Percentage from Transactions with Related Party	1.00%	1.80%	1.10%	1.70%
Related Party Transaction Consulting Fees from Transactions with Related Party	$ 4.5	$ 3.9	$ 13.2	$ 10.7
Chengdu Ya Guang Electronic Company Limited ("Ya Guang")
Related Party Transaction [Line Items]
Related Party Transaction, Description of Transaction			In addition, Chengdu Ya Guang Electronic Company Limited (“Ya Guang”) is our 2% joint venture partner in one of our Chengdu assembly and test facilities and our 5% partner in our other Chengdu assembly and test facilities
Chengdu Ya Guang Electronic Company Limited ("Ya Guang") \| Chengdu \| Assembly and Test Facility One
Related Party Transaction [Line Items]
Related Party ownership of common stock	2.00%		2.00%
Chengdu Ya Guang Electronic Company Limited ("Ya Guang") \| Chengdu \| Assembly and Test Facility Two
Related Party Transaction [Line Items]
Related Party ownership of common stock	5.00%		5.00%