Segment Information - Disaggregation of revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Total operating revenues	$ 2,292,912	$ 2,453,215	$ 2,283,532
Core advertising
Disaggregation of Revenue [Line Items]
Total operating revenues	1,444,539	1,549,277	1,592,121
Political
Disaggregation of Revenue [Line Items]
Total operating revenues	33,460	208,112	22,693
Distribution
Disaggregation of Revenue [Line Items]
Total operating revenues	779,217	660,317	620,454
Other
Disaggregation of Revenue [Line Items]
Total operating revenues	$ 35,696	$ 35,509	$ 48,264