| Recent Transactions - Debt Transactions - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | ||||
|---|---|---|---|---|---|
| Feb. 15, 2022 | Jan. 12, 2022 | Feb. 05, 2020 | Mar. 31, 2022 | Mar. 31, 2021 | |
| Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | |||||
| Net loss | $ 53,000 | ||||
| Proceeds from Sale of Productive Assets | $ 2,001 | $ 3,501 | |||
| FL [Member] | WlccamMember [Member] | |||||
| Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | |||||
| Payments to acquired asset | $ 600 | ||||
| 2024 Notes [member] | |||||
| Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | |||||
| Principal repurchased | 2,500 | ||||
| Net loss | $ 53,000 | ||||
| Debt instrument, interest rate | 6.75% | ||||
| Debt Instrument, Redemption Price, Percentage | 101.25% | ||||
| Radio stations [Member] | |||||
| Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | |||||
| Proceeds from Sale of Productive Assets | $ 4,000 | ||||
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- References No definition available. 
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- Definition The average effective interest rate during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Percentage price of original principal amount of debt at which debt can be redeemed by the issuer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Fair value amount of debt instrument that was repurchased. No definition available. 
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- Definition Amount of gain (loss) from the difference between the repurchase price of a debt instrument initially issued by the entity and the net carrying amount of the debt at the time of its repurchase. No definition available. 
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- Definition The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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