Nature of Business - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2021 Market Country Segment Station Unit
Segment Reporting Information [Line Items]
Number of reportable segments | Segment	3
Number of business units | Unit	4
Sales Operations in Number of Countries | Country	30
Percentage of defer the employer portion of social security payroll tax of CARES act	6.20%
Percentage of deferred employer portion of social security payroll tax of CARES act	50.00%
Percentage of deferred amount of social security payroll tax of CARES act	50.00%
Television
Segment Reporting Information [Line Items]
Number of stations owned | Station	49
Radio
Segment Reporting Information [Line Items]
Number of stations owned | Station	46
Number of markets operated | Market	14
Advertisements and Syndicate Radio Programming | Minimum
Segment Reporting Information [Line Items]
Number of markets owned | Market	100