Recent Transactions - Pending Transactions - Additional Information (Detail) - USD ($) |
3 Months Ended | 9 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|
Sep. 27, 2019 |
Sep. 26, 2019 |
Aug. 13, 2019 |
Jun. 28, 2019 |
Jan. 03, 2017 |
Sep. 30, 2019 |
Sep. 30, 2019 |
Sep. 30, 2018 |
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| Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | ||||||||
| Agreement to sell business | $ 4,202,000 | $ 8,518,000 | ||||||
| Business combination, liabilities arising from contingencies, amount recognized | $ 500,000 | |||||||
| Term of time brokerage agreement | 24 months | |||||||
| Additional term of time brokerage agreement | 24 months | |||||||
| Radio stations [Member] | ||||||||
| Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] | ||||||||
| Agreement to sell business | $ 0 | $ 8,200,000 | $ 8,700,000 | |||||
| Pretax loss on sale of assets | $ (1,300,000) | $ (4,700,000) | $ 9,900,000 | |||||
| X | ||||||||||
- Definition Additional term of time brokerage agreement. No definition available.
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- Definition Term of time brokerage agreement. No definition available.
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- References No definition available.
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- Definition The amount, measured at acquisition-date fair value, of all liabilities assumed that arise from contingencies and were recognized by the entity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of gain (loss) on sale or disposal of assets utilized in financial service operations. No definition available.
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| X | ||||||||||
- 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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| X | ||||||||||
- Details
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