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Goodwill and Other Intangible Assets - Additional Information (Detail) |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Jul. 01, 2024 Segment | Mar. 31, 2024 USD ($) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Oct. 01, 2024 USD ($)
Goodwill [Line Items] |  |  |  |  |  |
Aggregate amortization expense |  |  | $ 2,700,000 | $ 3,100,000 | $ 3,100,000 |
Number of operating segments | Segment | 2 |  |  |  |  |
Goodwill allocated to discontinued operations |  |  | 4,600,000 |  |  |
Goodwill allocated from advertising technology and services |  |  | 2,800,000 |  |  |
Impairment of goodwill |  |  | 43,322,000 |  |  |
Goodwill |  |  | 7,352,000 | $ 50,674,000 | 47,194,000 |
Meta |  |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |  |
Impairment charges related to intangible subject to amortization |  | $ 14,000,000 |  |  |  |
Revenue | Meta | Customer Concentration Risk |  |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |  |
Concentration risk percentage |  |  |  | 53.00% |  |
Digital |  |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |  |
Impairment of goodwill |  |  |  | $ 0 | 0 |
Impairment charges related to intangible subject to amortization |  |  |  | $ 1,000,000 |  |
Impairment, Intangible Asset, Finite-Lived, Statement of Income or Comprehensive Income [Extensible Enumeration] |  |  |  | Asset Impairment Charges |  |
Digital | Meta |  |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |  |
Impairment of goodwill |  |  | 35,400,000 |  |  |
Television |  |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |  |
Impairment of goodwill |  |  |  | $ 0 | 0 |
Television | FCC Licenses |  |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |  |
Impairment charge related to indefinite life intangible assets |  |  |  |  | $ 900,000 |
Impairment, Intangible Asset, Indefinite-Lived (Excluding Goodwill), Statement of Income or Comprehensive Income [Extensible Enumeration] |  |  |  |  | Asset Impairment Charges |
Media |  |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |  |
Impairment of goodwill |  |  | 43,322,000 |  |  |
Goodwill |  |  | $ 0 | 43,322,000 | $ 43,322,000 | $ 43,300,000
Goodwill, impaired, method for fair value determination |  |  | As of the annual goodwill testing date, October 1, 2024, there was $43.3 million of goodwill in the media reporting unit. Based on the assumptions and estimates in Note 2, the media reporting unit carrying value exceeded its fair value, resulting in a goodwill impairment charge of $43.3 million for the year ended December 31, 2024. This impairment charge was a result of the Company updating its internal forecasts of future performance based on lower than anticipated political revenue in the fourth quarter of 2024 and higher projected future costs due to planned investments in news programming and the sales and marketing teams. The calculation of the fair value of the reporting unit requires estimates of the discount rate and the long term projected growth rate. If that discount rate were to increase by 0.5%, the fair value of the media reporting unit would decrease by 6%. If the long term projected growth rate were to decrease by 0.5%, the fair value of the media reporting unit would decrease by 3% |  |  |
Media | FCC Licenses |  |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |  |
Impairment charge related to indefinite life intangible assets |  |  | $ 17,900,000 |  |  |
Impairment, Intangible Asset, Indefinite-Lived (Excluding Goodwill), Statement of Income or Comprehensive Income [Extensible Enumeration] |  |  | Asset Impairment Charges |  |  |
Advertising Technology And Services |  |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |  |
Impairment of goodwill |  |  | $ 0 |  |  |
Goodwill |  |  | $ 7,352,000 | 7,352,000 | 3,872,000 | $ 7,400,000
Goodwill, impaired, method for fair value determination |  |  | As of the annual goodwill testing date, October 1, 2024, there was $7.4 million of goodwill in the advertising technology & services reporting unit. Based on the assumptions and estimates in Note 2, the fair value of the advertising technology & services reporting unit exceeded its carrying value by over 100%, resulting in no impairment charge for the year ended December 31, 2024. The calculation of the fair value of the advertising technology & services reporting unit requires estimates of the discount rate and the long term projected growth rate. If that discount rate were to increase by 0.5%, the fair value of the advertising technology & services reporting unit would decrease by 2%. If the long term projected growth rate were to decrease by 0.5%, the fair value of the advertising technology & services reporting unit would decrease by 1%. |  |  |
Percentage of fair value of assets |  |  | 100.00% |  |  |
Audio |  |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |  |
Impairment of goodwill |  |  |  | 0 | 0 |
Audio | FCC Licenses |  |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |  |
Impairment charge related to indefinite life intangible assets |  |  |  | $ 12,300,000 | $ 700,000 |
Impairment, Intangible Asset, Indefinite-Lived (Excluding Goodwill), Statement of Income or Comprehensive Income [Extensible Enumeration] |  |  |  | Asset Impairment Charges | Asset Impairment Charges |

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- Definition Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 49 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482785/280-10-55-49 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 24 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482548/350-20-55-24 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 100 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Topic 852 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481372/852-10-55-10 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(15)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482598/350-20-45-1 Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482573/350-20-50-1 Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482573/350-20-50-1 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(10)(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 + Details
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- Definition Description of how the fair value of the impaired goodwill of the reporting unit was determined for goodwill valuation purposes. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 24 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482548/350-20-55-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482573/350-20-50-2 + Details
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- Definition Amount of impairment loss from asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 24 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482548/350-20-55-24 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482573/350-20-50-2 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 100 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482573/350-20-50-1 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482598/350-20-45-2 + Details
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- Definition The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482686/350-30-45-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-3 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 + Details
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