Recent Transactions - Summary of Fair Value of the Net Assets Acquired (Detail) $ in Thousands  | 
 Sep. 30, 2022  
USD ($) 
 | 
|---|---|
| Assets | |
| Property and equipment | $ 584 | 
| Broadcast licenses | 190 | 
| Goodwill | 2 | 
| Domain and brand names | 11 | 
| Non-compete agreements | 11 | 
| Net assets acquired | 798 | 
| Net Broadcast Assets [Member] | |
| Assets | |
| Property and equipment | 418 | 
| Broadcast licenses | 190 | 
| Net assets acquired | 608 | 
| Net Digital Media Assets [Member] | |
| Assets | |
| Property and equipment | 166 | 
| Goodwill | 2 | 
| Domain and brand names | 11 | 
| Non-compete agreements | 11 | 
| Net assets acquired | $ 190 | 
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- Definition Assets Acquisition Purchase Price Allocation Assets [Abstract] No definition available. 
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- Definition Assets acquisition purchase price allocation broadcast licenses. No definition available. 
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- Definition The value of domain and brand names recognized as of the acquisition date No definition available. 
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- Definition Assets acquisition purchase price allocation non compete agreements. No definition available. 
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- Definition Assets acquisition recognized identifiable assets acquired and liabilities assumed goodwill. No definition available. 
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- Definition The amount of property, plant, and equipment recognized as of the acquisition date. No definition available. 
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- Definition Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed. No definition available. 
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