Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net Income	$ 105,771	$ 153,934
Adjustments to reconcile net income to net cash flow from operating activities:
Depreciation and amortization	67,075	46,962
Stock-based compensation	7,568	9,442
Company stock 401(k) contribution	8,566	3,244
Gains on sales of assets	0	(11,725)
Equity loss (income) from unconsolidated investments, net	(10,936)	(11,413)
Pension contributions, net of expense	(5,885)	(3,812)
Change in other assets and liabilities, net of acquisitions:
Decrease (increase) in trade receivables	91,246	(20,091)
Decrease in accounts payable	(13,821)	(19,535)
Increase (decrease) in interest and taxes payable	32,056	(6,910)
Increase (decrease) in deferred revenue	(1,123)	(1,511)
Change in other assets and liabilities, net	33,025	(21,734)
Net cash flow from operating activities	313,542	116,851
Cash flows from investing activities:
Purchase of property and equipment	(24,308)	(37,684)
Reimbursements from spectrum repacking	9,768	8,439
Payments for acquisitions of businesses and other assets, net of cash acquired	(15,841)	(185,926)
Payments for investments	(704)	(3,553)
Proceeds from investments	5,028	955
Proceeds from sale of assets and businesses	5,000	20,064
Net cash flow used for investing activities	(21,057)	(197,705)
Cash flows from financing activities:
Payments under revolving credit facilities, net	(68,000)
Payments under revolving credit facilities, net		55,000
Proceeds from borrowings	1,000,000	0
Debt repayments	(1,010,000)	(50,000)
Payments for debt issuance costs and early redemption fee	(29,948)	0
Proceeds from sale of minority ownership interest in Premion	14,000	0
Dividends paid	(45,776)	(30,294)
Other, net	(9,095)	(446)
Net cash flow used for financing activities	(148,819)	(25,740)
Increase (decrease) in cash	143,666	(106,594)
Balance of cash, beginning of period	29,404	135,862
Balance of cash, end of period	173,070	29,268
Supplemental Cash Flow Information [Abstract]
Cash paid (received) for income taxes, net of refunds	465	55,785
Cash paid for interest	$ 100,074	$ 85,961