| Recent Transactions - Total Acquisition Consideration Allocated (Detail) $ in Thousands | Sep. 30, 2020  USD ($) | 
|---|---|
| Assets | |
| Property and equipment | $ 866 | 
| Goodwill | 66 | 
| Customer lists and contracts | 179 | 
| Domain and brand names | 18 | 
| Net assets acquired | 1,129 | 
| Liabilities | |
| Contract liabilities | (21) | 
| Total purchase price consideration | 1,108 | 
| Net digital media assets acquired [Member] | |
| Assets | |
| Property and equipment | 866 | 
| Goodwill | 66 | 
| Customer lists and contracts | 179 | 
| Domain and brand names | 18 | 
| Net assets acquired | 1,129 | 
| Liabilities | |
| Contract liabilities | (21) | 
| Total purchase price consideration | $ 1,108 | 
| X | ||||||||||
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- Definition Assets Acquisition Purchase Price Allocation Assets [Abstract] 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 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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- Definition The amount of customer lists and contracts recognized as of the acquisition date. No definition available. 
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- Definition Amount of assets acquired at the acquisition date. No definition available. 
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- Definition Business acquisition purchase price allocation contract liabilities. No definition available. 
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- References No definition available. 
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- Details 
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