Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 167,025	$ 187,591
Accounts receivable, net of allowance for doubtful accounts of $27,075 and $29,740 at September 30, 2017 and December 31, 2016, respectively	424,776	297,164
Income taxes receivable		101,578
Prepaid expenses	38,709	37,288
Inventory and other current assets	139,828	130,772
Assets held for sale	27,330	27,158
Total current assets	797,668	781,551
Property, plant and equipment, net of accumulated depreciation and depletion of $2,711,597 and $2,454,339 at September 30, 2017 and December 31, 2016, respectively	1,379,560	1,605,365
Goodwill	807,488	803,917
Notes receivable	59,226	56,650
Intangible and other long-term assets, net of accumulated amortization of $80,122 and $69,588 at September 30, 2017 and December 31, 2016, respectively	167,189	222,772
Total assets	3,211,131	3,470,255
Current liabilities:
Accounts payable	126,368	94,831
Accrued expenses	237,823	218,192
Income taxes payable	801	694
Current portion of decommissioning liabilities	27,237	22,164
Liabilities held for sale	8,755	8,653
Total current liabilities	400,984	344,534
Deferred income taxes	150,612	243,611
Decommissioning liabilities	101,544	101,513
Long-term debt, net	1,281,714	1,284,600
Other long-term liabilities	161,522	192,077
Stockholders' equity:
Preferred stock of $0.01 par value. Authorized, 5,000,000 shares; none issued
Common stock of $0.001 par value. Authorized-250,000,000, Issued and Outstanding - 153,083,270 at September 30, 2017, Authorized-250,000,000, Issued and Outstanding - 151,861,661 at December 31, 2016	153	152
Additional Paid in Capital	2,705,526	2,691,553
Accumulated other comprehensive loss, net	(68,873)	(80,248)
Retained deficit	(1,522,051)	(1,307,537)
Total stockholders' equity	1,114,755	1,303,920
Total liabilities and stockholders' equity	$ 3,211,131	$ 3,470,255