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Commitments (Details) (USD $) In Millions	Sep. 30, 2011
Commitments [Abstract]
Purchase Commitments	$ 31
Other Commitments	48
Other Commitment amounts paid	$ 15

X

- Details

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Namespace Prefix:	diod
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Other commitment remaining minimum amount committed

+ Details

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Namespace Prefix:	diod
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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- Definition

Other commitment remaining minimum amount paid

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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- Definition

The floor amount as of the balance sheet date that the entity must expend to satisfy the terms of disclosed arrangements (excluding long-term commitments) in which the entity has agreed to expend funds to procure goods or services from one or more suppliers, other than under a long-term purchase commitment or an unconditional purchase obligation.

+ Details

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Namespace Prefix:	diod
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant