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ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Fair value measured on recurring basis (Details) $ in Thousands | 3 Months Ended
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Mar. 31, 2022 USD ($)
Employment Agreement Award [Member] |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |
Balance, beginning of period | $ 28,193
Change in fair value | 579
Balance, end of period | 28,772
The amount of total (losses)/income for the period included in earnings attributable to the change in unrealized losses/income relating to assets and liabilities still held at the reporting date | (579)
Redeemable Noncontrolling Interest [Member] |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |
Balance, beginning of period | 17,015
Net income attributable to redeemable noncontrolling interests | 701
Change in fair value | 39
Balance, end of period | $ 17,755

X
- Definition The element represents the amount of total losses for the period included in earnings attributable to the change in unrealized losses relating to assets and liabilities still held at the reporting date. + References No definition available. + Details
Name: | uone_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisChangeInUnrealizedLossesAssetAndLiabilityAsOfReportingDateIncomeLossIncludedInEarnings
Namespace Prefix: | uone_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Change enterprise in fair value that have taken place during the period in relation to liabilities measured at fair value and categorized within Level 3 of the fair value hierarchy. + References No definition available. + Details
Name: | uone_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityChangeInEnterpriseFairValue
Namespace Prefix: | uone_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of gain (loss) recognized in earnings, attributable to non controlling interest arising ,from liabilities measured at fair value on a recurring basis using unobservable inputs (level 3). + References No definition available. + Details
Name: | uone_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisNetIncomeAttributableToNonControllingInterests
Namespace Prefix: | uone_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | uone_AwardRelatedToAxis=uone_EmploymentAgreementAwardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | uone_AwardRelatedToAxis=uone_RedeemableNoncontrollingInterestsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |