ACQUISITIONS AND DISPOSITIONS - Additional Information (Details) - USD ($)		3 Months Ended		9 Months Ended		12 Months Ended
	Aug. 31, 2022	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021	Apr. 20, 2021
Asset Acquisition [Line Items]
Net Revenue		$ 121,403,000	$ 111,463,000	$ 352,562,000	$ 310,496,000
Operating income (loss)		18,974,000	$ 34,475,000	79,347,000	$ 96,152,000
Indiana Radio Cluster Asset Acquisition [Member]
Asset Acquisition [Line Items]
Asset acquisition transaction price	$ 25,000,000
Radio broadcasting licenses	23,600,000
Intangible asset	87,000
Right of use assets	1,200,000
Goodwill, asset acquisition	437,000
Operating lease liabilities	1,200,000
Net Revenue		1,300,000		1,300,000
Operating income (loss)		328,000		$ 328,000
Indiana Radio Cluster Asset Acquisition [Member] | WHHH radio broadcasting license and intellectual property related to WNOW | Disposal group, disposed of by sale, not discontinued operations
Asset Acquisition [Line Items]
Net loss recognized related to disposal transaction		$ (120,000)
Indiana Radio Cluster Asset Acquisition [Member] | Towers and antennas
Asset Acquisition [Line Items]
Property, plant and equipment	162,000
Indiana Radio Cluster Asset Acquisition [Member] | Transmitters
Asset Acquisition [Line Items]
Property, plant and equipment	326,000
Indiana Radio Cluster Asset Acquisition [Member] | Studios
Asset Acquisition [Line Items]
Property, plant and equipment	208,000
Indiana Radio Cluster Asset Acquisition [Member] | Vehicles
Asset Acquisition [Line Items]
Property, plant and equipment	111,000
Indiana Radio Cluster Asset Acquisition [Member] | Furniture, fixtures, computer equipment and computer software
Asset Acquisition [Line Items]
Property, plant and equipment	$ 27,000
Audacy and Gateway
Asset Acquisition [Line Items]
Net gain from transaction						$ 404,000
Radio broadcasting licenses							$ 21,100,000
Right of use assets							1,700,000
Advertising credit liability							1,900,000
Operating lease liabilities							921,000
Unfavorable lease liability							812,000
Audacy and Gateway | Land and land improvements
Asset Acquisition [Line Items]
Property, plant and equipment							1,800,000
Audacy and Gateway | Towers and antennas
Asset Acquisition [Line Items]
Property, plant and equipment							2,000,000.0
Audacy and Gateway | Buildings
Asset Acquisition [Line Items]
Property, plant and equipment							517,000
Audacy and Gateway | Transmitters
Asset Acquisition [Line Items]
Property, plant and equipment							1,000,000.0
Audacy and Gateway | Studios
Asset Acquisition [Line Items]
Property, plant and equipment							712,000
Audacy and Gateway | Vehicles
Asset Acquisition [Line Items]
Property, plant and equipment							53,000
Audacy and Gateway | Furniture and fixtures
Asset Acquisition [Line Items]
Property, plant and equipment							200,000
Audacy and Gateway | Computer equipment
Asset Acquisition [Line Items]
Property, plant and equipment							67,000
Audacy and Gateway | Other equipment
Asset Acquisition [Line Items]
Property, plant and equipment							$ 19,000