Acquisitions - Acquisition Purchase Summary (Details) - USD ($) $ in Thousands		3 Months Ended
	Jan. 07, 2021	Mar. 31, 2022	Mar. 31, 2021
Business Acquisition [Line Items]
Total consideration, net of cash acquired		$ 13,797	$ 2,679,798
ION Media
Business Acquisition [Line Items]
Total purchase price	$ 2,650,000
Plus: Cash acquired	14,493
Plus: Working capital	57,755
Total transaction gross cash consideration	2,722,248
Less: Proceeds from ION stations divested	(30,000)
Total transaction net cash consideration	2,692,248
Less: Cash acquired	(14,493)
Total consideration, net of cash acquired	$ 2,677,755