Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Operating Activities
Net Income	$ 113,204	$ 141,183
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation	$ 5,418	5,114
Entity Small Business	false
Pension credit	$ (4,363)	(6,750)
Depreciation	12,952	13,775
Amortization of other intangible assets	35,021	41,687
Income on equity investments, net	(45,685)	(39,137)
Distributions from equity investments	153,082	115,137
Amortization of debt issuance costs and original issue discount	1,832	1,848
Gain on sales of spectrum (Note 8)	0	(133,197)
Gain on investment transactions	(86,272)	(3,888)
Spectrum repack reimbursements	(3,673)	0
Other non-operating loss (gain), net	927	(117)
Changes in working capital items:
Accounts receivable, net	11,868	35,770
Prepaid expenses and other current assets	(6,196)	(10,794)
Accounts payable	3,518	(2,881)
Employee compensation and benefits, accrued expenses and other current liabilities	(52,889)	(40,925)
Deferred revenue	171	1,697
Income taxes	98,181	40,144
Change in broadcast rights, net of liabilities	(19,814)	(18,942)
Deferred income taxes	(60,743)	16,726
Other, net	972	945
Net cash provided by operating activities	157,511	157,395
Investing Activities
Capital expenditures	(13,378)	(13,673)
Spectrum repack reimbursements	3,673	0
Proceeds from the sales of investments	107,500	3,890
Other, net	(948)	16
Net cash provided by (used in) investing activities	96,847	(9,767)
Financing Activities
Payments of dividends	(22,061)	(21,922)
Tax withholdings related to net share settlements of share-based awards	(8,288)	(5,493)
Proceeds from stock option exercises	7,009	581
Contribution from noncontrolling interest	190	0
Net cash used in financing activities	(23,150)	(26,834)
Net Increase in Cash, Cash Equivalents and Restricted Cash	231,208	120,794
Cash, cash equivalents and restricted cash, beginning of period	1,079,648	691,251
Cash, cash equivalents and restricted cash, end of period	1,310,856	812,045
Cash, Cash Equivalents and Restricted Cash are Comprised of:
Cash and cash equivalents	1,294,249	795,438
Restricted cash and cash equivalents	16,607	16,607
Cash, cash equivalents and restricted cash, end of period	1,310,856	812,045
Supplemental Schedule of Cash Flow Information
Interest	57,329	54,866
Income taxes, net	$ (445)	$ (425)