Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 55,972	$ 79,915
Trade accounts receivable, net of allowance of $2,293 and $2,032, respectively	124,691	247,069
Accounts receivable - related parties	44	161
Income tax receivable	2,317	3,121
Inventories	39,132	44,557
Prepaid expenses	16,606	15,779
Other current assets	8,688	9,934
Deferred tax assets	14,366	14,664
Total current assets	261,816	415,200
Property and equipment, net	895,659	1,007,969
Deferred debt costs, net of amortization	13,804	15,350
Goodwill		78,011
Other intangible assets, net of amortization	69,051	71,173
Other assets	10,009	9,474
Total assets	1,250,339	1,597,177
Current liabilities:
Accounts payable	46,931	50,618
Accrued expenses	66,912	90,810
Current portion of long-term debt	46,951	48,575
Other current liabilities	7,828	6,135
Total current liabilities	168,622	196,138
Long-term debt, net of unamortized premium on notes of $1,024 and $1,217, respectively	842,311	882,572
Deferred tax liabilities	49,019	147,621
Other long-term liabilities	$ 30,722	$ 28,193
Commitments and contingencies
Stockholders' equity:
Preferred stock; $0.01 par value; 5,000,000 shares authorized; none designated or issued at September 30, 2015 and December 31, 2014
Common stock; $0.01 par value; 80,000,000 shares authorized; 43,500,032 shares issued and 42,613,240 shares outstanding at September 30, 2015; 43,500,032 shares issued and 42,241,719 shares outstanding at December 31, 2014	$ 435	$ 435
Additional paid-in capital	371,756	369,920
Retained deficit	(201,628)	(15,067)
Treasury stock, at cost, 886,792 and 1,258,313 shares at September 30, 2015 and December 31, 2014, respectively	(10,898)	(12,635)
Total stockholders' equity	159,665	342,653
Total liabilities and stockholders' equity	$ 1,250,339	$ 1,597,177