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Performance-Based Common Stock Warrants - Impact to Net Sales in Connection with Warrants and Related Income Tax Benefit (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Class of Warrant or Right [Line Items] |  |  |
Term of successive vesting periods |  |  | 2 years
Performance-based warrants |  |  |
Class of Warrant or Right [Line Items] |  |  |
Reduction (addition) to net sales | $ 0 | $ 0 | $ (686)
Income tax benefit | $ 0 | $ 0 | $ (171)

X
- 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

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

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

X
- 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

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=ueic_CommonStockPurchaseWarrantMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |