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The Company and Significant Accounting Policies - Additional Information (Detail) $ in Thousands				1 Months Ended		3 Months Ended			6 Months Ended		12 Months Ended
	Mar. 17, 2023 USD ($)	Mar. 16, 2023	Nov. 30, 2017 USD ($)	Jun. 30, 2024 USD ($)	Jan. 31, 2024 USD ($)	Jun. 30, 2024 USD ($) shares	Mar. 31, 2024 USD ($)	Jun. 30, 2023 USD ($) shares	Jun. 30, 2024 USD ($) Station shares	Jun. 30, 2023 USD ($) shares	Dec. 31, 2023 USD ($)
Accounting Policies [Line Items]
Restricted cash				$ 779		$ 779		$ 761	$ 779	$ 761	$ 770
Retransmission consent revenue						$ 8,800		$ 9,300	$ 18,000	$ 18,900
Shares of dilutive securities not included in computation of diluted earnings per share | shares						3,240,646		2,038,928	1,067,997	2,100,813
Prepayment of credit facility					$ 10,000		$ 10,000
Financial covenants to net leverage ratio									3.25%
Interest coverage ratio to minimum permitted ratio									3.00%
Gain (loss) on debt extinguishment						$ (51)			$ (91)	$ (1,556)
Unamortized debt issuance costs				$ 903		903			903		$ 1,116
Customer Concentration Risk | Meta Platforms | Revenue
Accounting Policies [Line Items]
Concentration risk percentage											53.00%
TelevisaUnivision
Accounting Policies [Line Items]
Payment of sales representation fees to television stations						1,500		1,500	2,900	3,000
Retransmission consent revenue						$ 6,200		$ 6,500	$ 12,600	$ 13,100
Common stock percentage held by Univision				10.00%		10.00%			10.00%
Related Parties
Accounting Policies [Line Items]
Amount due from television stations for carriage				$ 8,100		$ 8,100			$ 8,100
Term Loan A Facility
Accounting Policies [Line Items]
Principal payment				4,900			8,750
Revolving Credit Facility
Accounting Policies [Line Items]
Line of Credit							$ 1,250
2017 Credit Facility
Accounting Policies [Line Items]
Agreement date			Nov. 30, 2017
Gain (loss) on debt extinguishment	$ (1,600)
Write-off of unamortized debt issuance costs	$ 1,100
2017 Credit Facility | Eurodollar Rate
Accounting Policies [Line Items]
Variable interest rate basis spread on debt			2.75%
2017 Credit Facility | Base Rate Margin
Accounting Policies [Line Items]
Variable interest rate basis spread on debt			1.75%
2017 Credit Facility | Term Loan B Facility
Accounting Policies [Line Items]
Senior Secured debt			$ 300,000
Interest rate		7.38%
Maturity date of revolving credit facility			Nov. 30, 2024
2023 Credit Facility
Accounting Policies [Line Items]
Agreement date	Mar. 17, 2023
Additional borrowing capacity	$ 100,000
First lien net leverage ratio	2.25%
Maturity date of revolving credit facility	Mar. 17, 2028
Debt issuance costs	$ 1,800
Gain (loss) on debt extinguishment						(100)			$ (100)
2023 Credit Facility | Term Loan A Facility
Accounting Policies [Line Items]
Senior Secured debt	200,000
Interest rate									8.25%
Unamortized debt issuance costs				900		900			$ 900
Estimated fair value of term loan				$ 176,600		$ 176,600			$ 176,600
2023 Credit Facility | Revolving Credit Facility
Accounting Policies [Line Items]
Senior Secured debt	75,000
Amount drawn	$ 11,500
Interest rate									8.25%
Minimum | 2023 Credit Facility | Base Rate Margin
Accounting Policies [Line Items]
Variable interest rate basis spread on debt	1.50%
Minimum | 2023 Credit Facility | SOFR
Accounting Policies [Line Items]
Variable interest rate basis spread on debt	2.50%
Minimum | 2023 Credit Facility | Revolving Credit Facility
Accounting Policies [Line Items]
Interest rate	0.30%
Maximum | 2023 Credit Facility | Base Rate Margin
Accounting Policies [Line Items]
Variable interest rate basis spread on debt	2.00%
Maximum | 2023 Credit Facility | SOFR
Accounting Policies [Line Items]
Variable interest rate basis spread on debt	3.00%
Maximum | 2023 Credit Facility | Revolving Credit Facility
Accounting Policies [Line Items]
Interest rate	0.40%
Television
Accounting Policies [Line Items]
Number of stations owned | Station									49
Radio
Accounting Policies [Line Items]
Number of stations owned | Station									44
Digital Segment | Customer Concentration Risk | Meta Platforms | Revenue
Accounting Policies [Line Items]
Concentration risk percentage											63.00%
Digital | Customer Concentration Risk | Meta Platforms | Revenue
Accounting Policies [Line Items]
Concentration risk percentage											63.00%

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