Debt Instrument, Number of Draws

No definition available.

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Remaining Repurchase Amount Authorized

+ References

No definition available.

+ Details

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Namespace Prefix:	uone_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Debt Instrument, Repurchase Price, Percentage

+ References

No definition available.

+ Details

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Namespace Prefix:	uone_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of amortization expense attributable to debt issuance costs.

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Balance Type:	debit
Period Type:	duration

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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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.

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Fair value amount of debt instrument that was repurchased.

+ References

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

- Definition

Amount, after accumulated amortization, of debt premium.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Period Type:	duration

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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- Definition

Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(f))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 15
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-15

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DEBT - Additional Information (Details) $ in Thousands		1 Months Ended			3 Months Ended
DEBT - Additional Information (Details) $ in Thousands	Dec. 18, 2025 USD ($)	May 14, 2026 USD ($) draw	Apr. 30, 2026 USD ($)	Mar. 31, 2026 USD ($)	Mar. 31, 2026 USD ($)	Mar. 31, 2025 USD ($)	Dec. 31, 2025 USD ($)
Debt Instrument [Line Items]
Additional premium				$ 88,056	$ 88,056		$ 69,174
Debt outstanding				326,688	326,688		363,436
Gain on retirement of debt					2,080	$ 11,587
Amount drawn under line of credit					10,000	0
Amount repaid under line of credit					10,000	0
Deferred financing costs included in interest expense					296	453
2031 Second Lien Notes \| Senior Notes
Debt Instrument [Line Items]
Debt repurchase amount				32,400	$ 32,400
Debt repurchase price percentage					40.70%
Additional premium				$ 19,300	$ 19,300
Debt instrument effective interest rate				1.63%	1.63%
Debt outstanding				$ 258,572	$ 258,572		291,020
2031 Second Lien Notes \| Senior Notes \| Subsequent Event
Debt Instrument [Line Items]
Debt repurchase amount			$ 23,500
Debt repurchase price percentage			42.00%
Debt outstanding			$ 235,100
2031 Second Lien Notes \| Senior Notes \| Level 2
Debt Instrument [Line Items]
Fair value of debt				$ 104,200	$ 104,200
2030 First Lien Notes \| Senior Notes
Debt Instrument [Line Items]
Debt instrument effective interest rate				5.30%	5.30%
Debt outstanding				$ 60,600	$ 60,600		60,600
2030 First Lien Notes \| Senior Notes \| Level 2
Debt Instrument [Line Items]
Fair value of debt				60,800	60,800
2028 Notes \| Senior Notes
Debt Instrument [Line Items]
Debt repurchase amount				$ 4,300	$ 4,300	$ 28,200
Debt repurchase price percentage					51.00%	58.00%
Debt instrument effective interest rate				7.71%	7.71%	7.84%
Debt outstanding				$ 7,516	$ 7,516		$ 11,816
Gain on retirement of debt					2,100	$ 11,600
2028 Notes \| Senior Notes \| Subsequent Event
Debt Instrument [Line Items]
Remaining repurchase amount			$ 19,900
2028 Notes \| Senior Notes \| Level 2
Debt Instrument [Line Items]
Fair value of debt				3,900	3,900
Current ABL Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Amount drawn under line of credit	$ 10,000			$ 10,000
Amount repaid under line of credit					10,000
Debt instrument, term				6 months
Interest rate for short-term debt				6.09%
Borrowing capacity				$ 31,800	$ 31,800
Current ABL Facility \| Subsequent Event \| Revolving Credit Facility
Debt Instrument [Line Items]
Amount drawn under line of credit		$ 10,000
Borrowing capacity		$ 22,000
Number of draws \| draw		2
Current ABL Facility \| Subsequent Event \| Revolving Credit Facility \| Drawdown One
Debt Instrument [Line Items]
Amount drawn under line of credit		$ 5,000
Interest rate for short-term debt		6.75%
Current ABL Facility \| Subsequent Event \| Revolving Credit Facility \| Drawdown Two
Debt Instrument [Line Items]
Amount drawn under line of credit		$ 5,000
Interest rate for short-term debt		6.01%