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Property and Equipment - Additional Information (Detail) | 12 Months Ended
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Dec. 31, 2024 USD ($) Station | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Property, Plant and Equipment [Line Items] |  |  |
Depreciation expense | $ 14,100,000 | $ 13,300,000 | $ 12,500,000
FCC |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Number of stations assigned to new channels | Station | 17 |  |
Estimated reimbursable cost | $ 16,000,000 |  |
Gains on involuntary conversion associated with repack process | $ 0 | $ 0 | $ 200,000

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