Goodwill and Other Intangible Assets - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2022 USD ($) Segment	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Oct. 01, 2022 USD ($)
Goodwill [Line Items]
Aggregate amortization expense	$ 10,700,000	$ 8,900,000	$ 4,000,000.0
Number of reporting segments | Segment	3
Goodwill	$ 86,991,000	71,708,000	58,043,000
Digital
Goodwill [Line Items]
Impairment of goodwill	0		800,000
Goodwill	$ 46,442,000	31,159,000	17,494,000	$ 46,200,000
Goodwill, impaired, method for fair value determination	The Company conducted its annual review of the fair value of the digital reporting unit. As of the annual goodwill testing date, October 1, 2022, there was $46.2 million of goodwill in the digital reporting unit. Based on the assumptions and estimates in Note 2, the fair value of the digital reporting unit exceeded its carrying value by 65%, resulting in no impairment charge. The calculation of the fair value of the digital reporting unit requires estimates of the discount rate and the long term projected growth rate. If that discount rate were to increase by 1%, the fair value of the digital reporting unit would decrease by 4%. If the long term projected growth rate were to decrease by 0.5%, the fair value of the digital reporting unit would decrease by 1%.
Percentage of fair value of assets	65.00%
Impairment charges related to intangible subject to amortization		$ 1,300,000	$ 5,300,000
Impairment, Intangible Asset, Finite-Lived, Statement of Income or Comprehensive Income [Extensible Enumeration]		Asset Impairment Charges	Asset Impairment Charges
Impairment charges related to property and equipment			$ 1,500,000
Television
Goodwill [Line Items]
Impairment of goodwill	$ 0
Goodwill	$ 40,549,000	$ 40,549,000	40,549,000	$ 40,500,000
Goodwill, impaired, method for fair value determination	the television reporting unit fair value exceeded its carrying value by 28%, resulting in no impairment charge in 2022. 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 television reporting unit would decrease by 3%. If the long term projected growth rate were to decrease by 0.5%, the fair value of the television reporting unit would decrease by 2%.During the years ended December 31, 2021 and 2020, the Company concluded that the television reporting unit fair value exceeded its carrying value, resulting in no impairment charge.
Percentage of fair value of assets	28.00%
Impairment charges related to intangible subject to amortization		$ 300,000
Impairment, Intangible Asset, Finite-Lived, Statement of Income or Comprehensive Income [Extensible Enumeration]		Asset Impairment Charges
Television | FCC Licenses
Goodwill [Line Items]
Impairment charge related to indefinite life intangible assets	$ 900,000		$ 23,500,000
Impairment, Intangible Asset, Indefinite-Lived (Excluding Goodwill), Statement of Income or Comprehensive Income [Extensible Enumeration]	Asset Impairment Charges		Asset Impairment Charges
Audio
Goodwill [Line Items]
Goodwill	$ 0	$ 0	$ 0
Impairment charges related to intangible subject to amortization		$ 1,300,000
Impairment, Intangible Asset, Finite-Lived, Statement of Income or Comprehensive Income [Extensible Enumeration]		Asset Impairment Charges
Audio | FCC Licenses
Goodwill [Line Items]
Impairment charge related to indefinite life intangible assets	$ 700,000	$ 100,000	$ 9,000,000.0
Impairment, Intangible Asset, Indefinite-Lived (Excluding Goodwill), Statement of Income or Comprehensive Income [Extensible Enumeration]	Asset Impairment Charges	Asset Impairment Charges	Asset Impairment Charges