CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net loss	$ (226,953)	$ (556,127)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization (including impairments)	1,291,232	1,315,514
Equity in net loss of affiliates	10,849	4,122
Loss (gain) on investments and sale of affiliate interests, net	293,715	(188,788)
Loss (gain) on derivative contracts, net	(210,511)	137,507
Loss on extinguishment of debt and write-off of deferred financing costs	41,616	561,382
Amortization of deferred financing costs and discounts (premiums) on indebtedness	36,971	7,214
Settlement loss related to pension plan	864	389
Share-based compensation expense	33,849	25,927
Deferred income taxes	(80,280)	(311,809)
Provision for doubtful accounts	29,462	32,918
Change in assets and liabilities, net of effects of acquisitions and dispositions:
Accounts receivable, trade	(37,224)	(8,006)
Other receivables	(5,926)	7,949
Prepaid expenses and other assets	(31,951)	(2,015)
Amounts due from and due to affiliates	8,573	(28,005)
Accounts payable	49,449	67,482
Accrued liabilities	(110,227)	(256,661)
Deferred revenue	20,536	10,614
Liabilities related to interest rate swap contracts	45,199	(8,500)
Net cash provided by operating activities	1,159,243	811,107
Cash flows from investing activities:
Payments for acquisitions, net of cash acquired	(5,308)	(43,608)
Sale of affiliate interests	(3,537)	0
Capital expenditures	(498,297)	(463,590)
Proceeds related to sale of equipment, including costs of disposal	6,858	1,536
Increase in other investments	(2,500)	(3,550)
Additions to other intangible assets	0	(744)
Net cash used in investing activities	(502,784)	(509,956)
Cash flows from financing activities:
Proceeds from credit facility debt, net of discounts	1,642,500	4,977,425
Repayment of credit facility debt	(621,325)	(3,573,750)
Issuance of senior notes and debentures	2,050,000	0
Proceeds from collateralized indebtedness, net	337,124	490,816
Net Cash Receipt Payment on Collateralized Indebtedness Settlement	(337,124)	(483,081)
Repayment of collateralized indebtedness and related derivative contracts, net	0
Payments of Dividends	(1,499,935)	(919,317)
Redemption of senior notes, including premiums and fees	(2,123,756)	(979,280)
Repayment of notes payable	(446)	0
Principal payments on capital lease obligations	(6,019)	(8,061)
Additions to deferred financing costs	(22,277)	(7,352)
Other	(859)	0
Net cash provided by (used in) financing activities	(605,062)	(102,309)
Payment for Contingent Consideration Liability, Financing Activities	(28,940)	0
Proceeds from Partnership Contribution	5,995
Proceeds from Contributed Capital		51,135
Proceeds from Issuance Initial Public Offering	0	349,156
Net increase in cash and cash equivalents	51,397	198,842
Cash, cash equivalents and restricted cash at beginning of year	330,100	503,093
Cash, cash equivalents and restricted cash at end of period	381,393	701,935
Effect of Exchange Rate on Cash and Cash Equivalents	(104)	0
Cash and Cash Equivalents, Period Increase (Decrease)	51,293	$ 198,842
Non-controlling Interest
Cash flows from financing activities:
Proceeds from Partnership Contribution	$ 5,995