Goodwill and Other Intangible Assets - Additional Information (Detail) |
3 Months Ended | 12 Months Ended | |||||||
---|---|---|---|---|---|---|---|---|---|
Oct. 01, 2020
USD ($)
License
|
Dec. 31, 2020
USD ($)
|
Sep. 30, 2020
USD ($)
|
Jun. 30, 2020
USD ($)
|
Mar. 31, 2020
USD ($)
|
Dec. 31, 2020
USD ($)
Segment
|
Dec. 31, 2019
USD ($)
|
Dec. 31, 2018
USD ($)
|
Oct. 01, 2019
USD ($)
|
|
Goodwill [Line Items] | |||||||||
Aggregate amortization expense | $ 4,000,000.0 | $ 6,000,000.0 | $ 6,100,000 | ||||||
Number of reporting segments | Segment | 3 | ||||||||
Impairment of goodwill | $ 800,000 | 27,714,000 | |||||||
Goodwill | $ 58,043,000 | 58,043,000 | 46,511,000 | 74,292,000 | |||||
Digital | |||||||||
Goodwill [Line Items] | |||||||||
Impairment of goodwill | 0 | $ 800,000 | 800,000 | 27,714,000 | |||||
Goodwill | $ 5,200,000 | $ 17,494,000 | 17,494,000 | 5,962,000 | 33,743,000 | ||||
Goodwill, impaired, method for fair value determination | As of the annual goodwill testing date, October 1, 2020, there was $5.2 million of goodwill in the digital reporting unit. The fair value of the digital reporting unit exceeded its carrying value by 20%, resulting in no impairment charge in the fourth quarter of 2020. The calculation of the fair value of the reporting unit requires estimates of the discount rate and the long term projected growth rate. If that discount rate were to increase by 1%, the fair value of the digital reporting unit would decrease by 5%. If the long term projected growth rate were to decrease by 0.5%, the fair value of the digital reporting unit would decrease by 1%. | ||||||||
Percentage of fair value of assets | 20.00% | ||||||||
Impairment charges related to intangible subject to amortization | $ 0 | $ 0 | $ 0 | 5,300,000 | |||||
Impairment charges related to property and equipment | 1,500,000 | ||||||||
Television | |||||||||
Goodwill [Line Items] | |||||||||
Impairment of goodwill | 0 | ||||||||
Goodwill | 40,549,000 | $ 40,549,000 | 40,549,000 | $ 40,549,000 | $ 40,500,000 | ||||
Goodwill, impaired, method for fair value determination | the television reporting unit fair value exceeded its carrying value by 19%, resulting in no impairment charge in 2020. The calculation of the fair value of the reporting unit requires estimates of the discount rate and the long term projected growth rate. If that discount rate were to increase by 0.5%, the fair value of the television reporting unit would decrease by 5%. If the long term projected growth rate were to decrease by 0.5%, the fair value of the television reporting unit would decrease by 3%. | ||||||||
Percentage of fair value of assets | 19.00% | ||||||||
Television | FCC Licenses and Spectrum Usage Rights | |||||||||
Goodwill [Line Items] | |||||||||
Impairment of goodwill | 4,000,000.0 | ||||||||
Television | FCC Licenses | |||||||||
Goodwill [Line Items] | |||||||||
Impairment charge related to indefinite life intangible assets | 23,500,000 | ||||||||
Radio | |||||||||
Goodwill [Line Items] | |||||||||
Goodwill | $ 0 | $ 0 | 0 | ||||||
Radio | FCC Licenses and Spectrum Usage Rights | |||||||||
Goodwill [Line Items] | |||||||||
Impairment of goodwill | $ 200,000 | ||||||||
Radio | FCC Licenses | |||||||||
Goodwill [Line Items] | |||||||||
Number of licenses exceeds fair value | License | 2 | ||||||||
Impairment charge related to indefinite life intangible assets | $ 200,000 | $ 8,800,000 |