Line of credit facility additional increase in borrowing capacity.

No definition available.

Name:	diod_LineOfCreditFacilityAdditionalIncreaseInBorrowingCapacity
Namespace Prefix:	diod_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of borrowing capacity currently used for import and export guarantee.

+ References

No definition available.

+ Details

Name:	diod_LineOfCreditFacilityCreditUsedForGuarantee
Namespace Prefix:	diod_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateTerms
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Date the debt instrument was issued, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentIssuanceDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Identification of each affiliate who is permitted to utilize the line of credit (for example, a subsidiary of the reporting entity) and description of its relationship to the reporting entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 22
-Article 5

+ Details

Name:	us-gaap_LineOfCreditFacilityAffiliatedBorrower
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_LineOfCreditFacilityExpirationDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
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

Name:	us-gaap_LineOfCreditFacilityLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_StatementGeographicalAxis=diod_USAndAsiaSubsidiariesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=diod_CreditAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=diod_RevolverMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=diod_SwingLineSublimitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=diod_LetterOfCreditSublimitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=diod_AlternativeCurrencySublimitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=diod_TermLoanFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=diod_UnsecuredMember
Namespace Prefix:
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Bank Credit Agreements and Other Short-Term and Long-Term Debt - Additional Information (Details) - USD ($)		12 Months Ended
	Sep. 02, 2015	Dec. 31, 2015
Line Of Credit Facility [Line Items]
Lines of credit unused and available		$ 83,000,000
Line of Credit Facility Credit Used For Guarantee		1,000,000
U.S. and Asia Subsidiaries
Line Of Credit Facility [Line Items]
Lines of credit unused and available		83,000,000
Line of Credit Facility Credit Used For Guarantee		$ 0
Credit Agreement
Line Of Credit Facility [Line Items]
Credit agreement commencement date		Sep. 02, 2015
Line of credit facility, Affiliated borrower		Diodes International B.V
Credit Agreement \| Maximum
Line Of Credit Facility [Line Items]
Line of credit facility additional increase in borrowing capacity	$ 200,000,000
Revolver
Line Of Credit Facility [Line Items]
Lines of credit maximum borrowing capacity	400,000,000
Line of credit facility, maturity date		Jan. 08, 2018
Term Loan, Interest Rate Terms		Borrowed amounts under the Revolver and the Term Loan Facility bear interest at a rate per annum equal to (a) a base rate (equal to the highest of (i) the Federal Funds Rate plus 1⁄2 of 1.00%, (ii) Bank of America’s “prime rate”, and (iii) the Eurocurrency Rate plus 1.00%,) plus 0.50% and 1.50%, based upon the Borrowers’ Consolidated Leverage Ratio, or (b) the Eurocurrency Rate plus 1.50% and 2.50%, based upon the Borrowers’ Consolidated Leverage Ratio.
Revolver \| Swing Line Sublimit
Line Of Credit Facility [Line Items]
Lines of credit maximum borrowing capacity	10,000,000
Revolver \| Letter of Credit Sublimit
Line Of Credit Facility [Line Items]
Lines of credit maximum borrowing capacity	10,000,000
Revolver \| Alternative Currency Sublimit
Line Of Credit Facility [Line Items]
Lines of credit maximum borrowing capacity	20,000,000
Revolver \| Maximum
Line Of Credit Facility [Line Items]
Commitment fee percentage		0.40%
Revolver \| Minimum
Line Of Credit Facility [Line Items]
Commitment fee percentage		0.25%
Term Loan Facility
Line Of Credit Facility [Line Items]
Lines of credit maximum borrowing capacity	$ 100,000,000
Line of credit facility, maturity date		Jan. 08, 2018
Unsecured
Line Of Credit Facility [Line Items]
Lines of credit maximum borrowing capacity		$ 84,326,000