Nature of Business, Basis of Presentation and Summary of Significant Accounting Policies - Local Marketing Agreements - Narrative (Details) - Marketing Agreement $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($)	Dec. 31, 2022 station
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Number of radio stations under local marketing agreement | station		0
Revenue | $	$ 0.5