Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Operating Activities
Net Income (Loss)		$ 141,183	$ (85,594)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Stock-based compensation		5,114	14,963
Pension credit, net of contributions		(6,750)	(5,549)
Depreciation		13,775	13,571
Amortization of contract intangible assets and liabilities		220	208
Amortization of other intangible assets		41,687	41,659
Income on equity investments, net		(39,137)	(37,037)
Distributions from equity investment		115,137	111,509
Non-cash loss on extinguishment and modification of debt		0	6,823
Original issue discount payments		0	(6,873)
Write-down of investment		0	122,000
Amortization of debt issuance costs and original issue discount		1,848	2,170
Gain on sales of spectrum		(133,197)	0
Gain on sale of business		0	(35,462)
Gain on investment transactions		(3,888)	(4,950)
Impairments of real estate		0	754
Other non-operating (gain) loss, net		(117)	26
Changes in working capital items:
Accounts receivable, net		35,770	44,963
Prepaid expenses and other current assets		(10,794)	4,568
Accounts payable		(2,881)	(6,797)
Employee compensation and benefits, accrued expenses and other current liabilities		(40,925)	(49,580)
Deferred revenue		1,697	(2,326)
Income taxes		40,144	77,201
Change in broadcast rights, net of liabilities		(18,942)	(18,546)
Deferred income taxes		16,726	(115,922)
Other, net		725	3,517
Net cash provided by operating activities		157,395	75,296
Investing Activities
Capital expenditures		(13,673)	(14,634)
Investments		(28)	0
Net proceeds from the sale of business		0	551,419
Sale of partial interest in equity investment		833	0
Proceeds from sales of real estate and other assets		44	44,315
Proceeds from the sale of investments		3,057	4,950
Net cash (used in) provided by investing activities		(9,767)	586,050
Financing Activities
Long-term borrowings		0	202,694
Repayments of long-term debt		0	(584,245)
Long-term debt issuance costs		0	(1,689)
Payments of dividends		(21,922)	(520,849)
Tax withholdings related to net share settlements of share-based awards		(5,493)	(7,053)
Proceeds from stock option exercises		581	2,385
Net cash used in financing activities		(26,834)	(908,757)
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash		120,794	(247,411)
Cash, cash equivalents and restricted cash, beginning of period (1)	[1]	691,251	611,198
Cash, cash equivalents and restricted cash, end of period		812,045	363,787
Cash, Cash Equivalents and Restricted Cash are Comprised of:
Cash and cash equivalents		795,438	346,221
Restricted cash		16,607	17,566
Cash, cash equivalents and restricted cash, end of period		812,045	363,787
Supplemental Schedule of Cash Flow Information
Interest		54,866	54,246
Income taxes, net		$ (425)	$ 752

[1] (1)Cash, cash equivalents and restricted cash at the beginning of the three months ended March 31, 2017 of $611 million are comprised of $595 million of cash, cash equivalents and restricted cash from continuing operations as reflected in the Company’s unaudited Condensed Consolidated Balance Sheets and $16 million of cash, cash equivalents and restricted cash reflected in current assets of discontinued operations.