| Broadcast Licenses (Tables)
 | 6 Months Ended | 
| Jun. 30, 2023 | 
|---|
| Indefinite-lived Intangible Assets [Line Items] |  | 
| Schedule of Interim Impairment Testing Under Start-Up Income Approach | 
The table below presents the results of our interim impairment testing under the  start-up  income approach at June 30, 2023: 
 
|  |  |  |  |  |  
|  |    | Excess Fair Value June 30, 2023 |   |  
| Boston, MA |  |  | 12.7 | % |  
| Chicago, IL |  |  | 0.2 | % |  
| Cleveland, OH |  |  | 7.5 | % |  
| Columbus, OH |  |  | 11.4 | % |  
| Dallas, TX |  |  | 7.1 | % |  
| Denver, CO |  |  | 857.2 | % |  
| Detroit, MI |  |  | 45.6 | % |  
| Greenville, SC |  |  | 5.2 | % |  
| Honolulu, HI |  |  | 12.3 | % |  
| Houston, TX |  |  | 2,318.6 | % |  
| Little Rock, AR |  |  | 7.0 | % |  
| Los Angeles, CA |  |  | 31.3 | % |  
| Nashville, TN |  |  | 457.2 | % |  
| New York, NY |  |  | 2.1 | % |  
| Orlando FL |  |  | 14.1 | % |  
| Philadelphia, PA |  |  | 31.2 | % |  
| Phoenix, AZ |  |  | 49.7 | % |  
| Pittsburgh, PA |  |  | 197.6 | % |  
| Portland, OR |  |  | (3.0 | )% |  
| Sacramento, CA |  |  | 15.7 | % |  
| San Antonio, TX |  |  | 279.1 | % |  
| San Francisco, CA |  |  | (1.9 | )% |  
| Seattle, WA |  |  | 85.5 | % |  
| Tampa, FL |  |  | 18.0 | % |  
| Washington, D.C. |  |  | 150.3 | % |  | 
| Schedule of Estimates and Assumptions Used in the Start - Up Income Valuation for Broadcast Licenses | The assumptions used reflect those of a hypothetical market participant and not necessarily the actual or projected results of Salem. The key estimates and assumptions used in the  start-up  income valuation for our broadcast licenses were as follows:
|  |  |  |  |  |  
|  |    | December 31, 2022 |    |  |  
| Risk-adjusted discount rate |    | 9.5 % |   |  |  
| Operating profit margin ranges |    |  |   |  |  
| Long-term revenue growth rates |    | 0.4 % -  0.8 % |   |  |  | 
| Schedule of Changes in Broadcasting Licenses | The following table presents the changes in broadcasting licenses that include acquisitions and divestitures of radio stations and FM translators. 
|  |  |  |  |  |  |  |  |  |  
|  |    | Twelve Months EndedDecember 31, 2022
 |   |    |  |   |  
|    |   |   |    |   |   |  
|    |  |   |  
| Balance before cumulative loss on impairment, beginning of period |  | $ | 434,444 |  |  | $ |  |  |  
| Accumulated loss on impairment, beginning of period |  |  | (114,436 | ) |  |  |  |  |  
|  |  |   |   |  |  |   |   |  |  
| Balance after cumulative loss on impairment, beginning of period |  |  | 320,008 |  |  |  |  |  |  
|  |  |   |   |  |  |   |   |  |  
| Acquisitions of radio station and FM Translators |  |  | 514 |  |  |  |  |  |  
| Disposition of radio stations and FM translators |  |  | (2,763 | ) |  |  |  |  |  
|  |  |  | (13,985 | ) |  |  |  |  |  
|  |  |   |   |  |  |   |   |  |  
| Balance, end of period after cumulative loss on impairment |  | $ | 303,774 |  |  | $ |  |  |  
|  |  |   |   |  |  |   |   |  |  
| Balance, end of period before cumulative loss on impairment |  | $ | 429,890 |  |  | $ |  |  |  
| Accumulated loss on impairment, end of period |  |  | (126,116 | ) |  |  |  |  |  
|  |  |   |   |  |  |   |   |  |  
| Balance, end of period after cumulative loss on impairment |  | $ | 303,774 |  |  | $ |  |  |  
|  |  |   |   |  |  |   |   |  |  |