Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash Flows From Operating Activities:
Net loss	$ (181,945)	$ (626)
Adjustments to reconcile net loss to net cash provided by operating activities:
Goodwill impairment charges	269,332
Depreciation and amortization	120,597	156,677
Amortization of debt issuance costs and discounts	3,611	3,999
Loss on early extinguishment of debt and write-off of discounts and debt issuance costs	8,143
Loss on sale or disposal/impairment of assets	9,353	6,823
Loss on derivatives		1
Deferred income tax (benefit) provision	(74,437)	27,405
Equity-based compensation	19,265	34,596
Changes in assets and liabilities:
Accounts receivable	(17,448)	(14,447)
Inventories	(4,233)	(2,218)
Prepaid expenses and other current assets	6,452	5,086
Accounts payable	5,327	(2,762)
Accrued salaries, wages and benefits	1,406	4,587
Deferred revenue	19,867	21,736
Other accrued expenses	(451)	7,771
Other assets and liabilities	2,940	10,243
Net cash provided by operating activities	187,779	258,871
Cash Flows From Investing Activities:
Capital expenditures	(139,638)	(135,496)
Change in restricted cash	(717)	(624)
Other investing activities	1,515
Net cash used in investing activities	(138,840)	(136,120)
Cash Flows From Financing Activities:
Proceeds from the issuance of debt	998,306
Repayment of long-term debt	(1,020,983)	(12,637)
Proceeds from draw on revolving credit facility	80,649	85,000
Repayment of revolving credit facility	(105,000)	(100,000)
Debt issuance costs	(15,390)
Dividends paid to stockholders	(1,535)	(56,756)
Payment of tax withholdings on equity-based compensation through shares withheld	(1,613)	(1,604)
Exercise of stock options	11	82
Net cash used in financing activities	(65,555)	(85,915)
Change in Cash and Cash Equivalents	(16,616)	36,836
Cash and Cash Equivalents—Beginning of period	68,958	18,971
Cash and Cash Equivalents—End of period	52,342	55,807
Supplemental Disclosures of Noncash Investing and Financing Activities
Capital expenditures in accounts payable	19,835	10,872
Dividends declared, but unpaid	$ 505	$ 9,467