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Performance-Based Common Stock Warrants - Impact to Net Sales in Connection with Warrants and Related Income Tax Benefit (Details) - Performance-based warrants $ in Thousands |  | 12 Months Ended | 24 Months Ended
--- | --- | --- | ---
Mar. 09, 2016 vesting_period | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2021 | Dec. 31, 2019 | Dec. 31, 2017
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |
Reduction (addition) to net sales |  | $ (686) | $ 686 | $ 1,997 |  |  |
Income tax benefit |  | $ (171) | $ 171 | $ 498 |  |  |
Number of vesting periods | vesting_period | 3 |  |  |  |  |  |
Term of successive vesting periods | 2 years | 2 years |  |  | 2 years | 2 years | 2 years

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- Definition Class of Warrant or Right, Contra Revenue + References No definition available. + Details
Name: | ueic_ClassofWarrantorRightContraRevenue
Namespace Prefix: | ueic_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Class of Warrant or Right, Income Tax Expense (Benefit) + References No definition available. + Details
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Namespace Prefix: | ueic_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Class of Warrant or Right, Number of Vesting Periods + References No definition available. + Details
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Namespace Prefix: | ueic_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition Class of Warrant or Right, Term of Successive Vesting Periods + References No definition available. + Details
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Namespace Prefix: | ueic_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- 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_ClassOfWarrantOrRightLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |