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Performance-Based Common Stock Warrants - Impact to Net Sales in Connection with Warrants and Related Income Tax Benefit (Details) - Common stock purchase warrants - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Class of Warrant or Right [Line Items]
Reduction to net sales	$ 0	$ 131	$ 0	$ 274
Income tax benefit	$ 0	$ 32	$ 0	$ 68

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

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: