Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net income	$ 86,198	$ 73,979
Adjustments to reconcile net income to net cash flow from operating activities:
Depreciation and amortization	33,116	23,606
Stock-based compensation	(757)	4,433
Company stock 401(k) contribution	5,138	0
Gains on sales of assets	0	(2,880)
Equity loss (income) from unconsolidated investments, net	(9,015)	(12,028)
Pension contributions, net of expense	(3,642)	(242)
Change in other assets and liabilities, net	66,326	(38,459)
Net cash flow from operating activities	177,364	48,409
Cash flows from investing activities:
Purchase of property and equipment	(13,264)	(24,810)
Reimbursements from spectrum repacking	7,515	4,134
Payments for acquisitions of businesses and other assets, net of cash acquired	(15,000)	(108,872)
Payments for investments	(509)	(1,171)
Proceeds from investments	695	618
Proceeds from sale of assets and businesses	5,000	20,064
Net cash flow used for investing activities	(15,563)	(110,037)
Cash flows from financing activities:
Payments under revolving credit facilities, net	(118,000)	(30,000)
Proceeds from borrowings	1,000,000	0
Debt repayments	(985,000)	(25,000)
Payments for debt issuance costs and early redemption fee	(27,603)	0
Proceeds from sale of minority ownership interest in Premion	14,000	0
Dividends paid	(30,470)	(15,078)
Other, net	(9,073)	(338)
Net cash flow used for financing activities	(156,146)	(70,416)
Increase (decrease) in cash	5,655	(132,044)
Balance of cash, beginning of period	29,404	135,862
Balance of cash, end of period	35,059	3,818
Supplemental Cash Flow Information [Abstract]
Cash paid (received) for income taxes, net of refunds	793	(397)
Cash paid for interest	$ 66,240	$ 27,412