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CONTENT ASSETS - Content Amortization (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Asset Retirement Obligation Disclosure [Abstract] |  |
Content amortization - acquired | $ 3,979 | $ 3,357
Content amortization - produced | 5,903 | 8,087
Total content amortization | $ 9,882 | $ 11,444

X
- Definition The aggregate expense charged against earnings to allocate the cost of acquired content intangible assets. + References No definition available. + Details
Name: | uone_AmortizationOfAcquiredContentIntangibleAssets
Namespace Prefix: | uone_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The noncash amortization expense, charged against earnings in the period to allocate the cost of content assets over their remaining economic lives + References No definition available. + Details
Name: | uone_AmortizationOfContentAssets
Namespace Prefix: | uone_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The aggregate expense charged against earnings to allocate the cost of produced content intangible assets. + References No definition available. + Details
Name: | uone_AmortizationOfProducedContentIntangibleAssets
Namespace Prefix: | uone_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_AssetRetirementObligationDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration