Goodwill - Schedule of Changes in Goodwill (Detail) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
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| Goodwill [Line Items] | ||
| Balance before cumulative loss on impairment, beginning of period | $ 28,818 | $ 28,453 |
| Accumulated loss on impairment, beginning of period | (2,029) | (2,029) |
| Balance after cumulative loss on impairment, beginning of period | 26,789 | 26,424 |
| Impairments based on the estimated fair value goodwill | (2,427) | |
| Balance before cumulative loss on impairment, end of period | 28,454 | 28,818 |
| Accumulated loss on impairment, end of period | (4,456) | (2,029) |
| Balance after cumulative loss on impairment, end of period | 23,998 | 26,789 |
| Radio Stations [Member] | ||
| Goodwill [Line Items] | ||
| Acquisitions | 7 | |
| Goodwill, Written off Related to Sale of Business Unit | (29) | (628) |
| Digital Media [Member] | ||
| Goodwill [Line Items] | ||
| Acquisitions | 6 | $ 986 |
| Goodwill, Written off Related to Sale of Business Unit | $ (341) | |
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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