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GOODWILL, RADIO BROADCASTING LICENSES AND OTHER INTANGIBLE ASSETS - Estimate of Amortization Expense (Details) - Finite-Lived Intangible Assets [Member]
$ in Thousands
Dec. 31, 2021
USD ($)
Schedule of Goodwill, Radio Broadcasting Licenses And Other Intangible Assets [Line Items]  
2022 $ 3,651
2023 1,225
2024 222
2025 185
2026 $ 165