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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 USD ($) segment | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Mar. 27, 2020 USD ($)
Subsequent Event [Line Items] |  |  |  |
Number of reportable segments | segment | 3 |  |  |
Allowable interest deductions, increase (decrease) during period, CARES Act |  |  | $ 179,400 |
Employer social security payments, deferred payment, CARES Act |  |  | 29,300 |
Refundable payroll tax credit, CARES Act |  |  |  | $ 12,400
Refundable payroll tax credit received, CARES Act | $ 7,900 | $ 3,800 | 700 |
Cash and cash equivalents | $ 336,236 | 352,129 |  |
Media representation contracts term | 10 years |  |  |
Advertising expenses | $ 166,100 | 166,100 | 167,200 |
Advertising expense, barter costs | $ 138,300 | $ 130,100 | $ 133,000 |
Computer equipment and software |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Estimate useful lives | 3 years |  |  |
Minimum | Buildings and improvements |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Estimate useful lives | 10 years |  |  |
Minimum | Towers, transmitters and studio equipment |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Estimate useful lives | 5 years |  |  |
Minimum | Furniture and other equipment |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Estimate useful lives | 5 years |  |  |
Maximum | Buildings and improvements |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Estimate useful lives | 39 years |  |  |
Maximum | Towers, transmitters and studio equipment |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Estimate useful lives | 40 years |  |  |
Maximum | Furniture and other equipment |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Estimate useful lives | 7 years |  |  |

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