Recent Transactions - Total Acquisition Consideration Allocated (Detail) - Digital Media [Member] $ in Thousands |
Mar. 31, 2019
USD ($)
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|---|---|
| Assets | |
| Subscriber base and lists | $ 100 |
| Net assets acquired | $ 100 |
| X | ||||||||||
- Definition Business Acquisition Purchase Price Allocation Assets [Abstract] No definition available.
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| X | ||||||||||
- Definition Business Acquisition Purchase Price Allocation Subscriber Base and Lists No definition available.
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| X | ||||||||||
- Definition Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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