Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 34,244	$ 98,875
Restricted cash	2,432	2,429
Trade accounts receivable, net of allowance of $1,751 and $0, respectively	150,475	108,655
Accounts receivable - related parties	22	31
Income tax receivable	1,270	1,271
Inventories	36,680	35,691
Prepaid expenses	21,483	15,575
Other current assets	3,942	2,003
Total current assets	250,548	264,530
Property and equipment, net	520,575	488,848
Deferred debt costs, net of amortization	56	0
Intangible assets, net of amortization	3,339	3,458
Other assets	11,848	11,324
Total assets	786,366	768,160
Current liabilities:
Accounts payable	80,993	47,959
Accrued expenses	57,457	51,329
Current portion of long-term debt, net	46,456	38,468
Other current liabilities	780	2,065
Total current liabilities	185,686	139,821
Long-term debt, net	207,487	184,752
Deferred tax liabilities	389	0
Other long-term liabilities	30,278	29,179
Commitments and contingencies
Stockholders' equity:
Preferred stock; $0.01 par value; 5,000,000 shares authorized; none designated or issued at June 30, 2017 and December 31, 2016	0	0
Common stock; $0.01 par value; 80,000,000 shares authorized; 26,095,434 shares issued and 26,027,213 shares outstanding at June 30, 2017; 26,095,431 shares issued and 25,998,844 shares outstanding at December 31, 2016	261	261
Additional paid-in capital	427,289	417,624
Accumulated deficit	(62,567)	0
Treasury stock, at cost, 68,221 and 96,587 shares at June 30, 2017 and December 31, 2016, respectively	(2,457)	(3,477)
Total stockholders' equity	362,526	414,408
Total liabilities and stockholders' equity	$ 786,366	$ 768,160