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Commitments and Contingencies - Fair Price Provisions (Details)	Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Percentage of voting stock required for approval	66.66%

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- Definition

Fair Price Provision, Percentage of Voting Stock Required for Approval

+ References

No definition available.

+ Details

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Namespace Prefix:	ueic_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

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- References

No definition available.

+ Details

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