Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 63,796	$ 90,300
Trade accounts receivable, net of allowance of $1,573 and $1,838, respectively	140,269	144,767
Income tax receivable	3,425	1,574
Inventories	33,740	36,449
Prepaid expenses	16,164	17,479
Other current assets	6,299	4,640
Total current assets	263,693	295,209
Property and equipment, net	442,092	448,801
Operating lease right-of-use assets	19,321
Deferred debt costs, net of amortization	2,604	2,747
Intangible assets, net of amortization	2,925	2,984
Other assets	12,585	12,036
Total assets	743,220	761,777
Current liabilities:
Accounts payable	76,833	98,323
Accrued expenses	71,484	55,826
Current portion of long-term debt, net of $359 and $479 discount at March 31, 2019 and December 31, 2018, respectively	22,465	27,039
Operating lease right-of-use liabilities, current portion	5,347
Other current liabilities	719	3,123
Total current liabilities	176,848	184,311
Long-term debt, net of discounts and deferred financing costs of $10,448 and $10,690, at March 31, 2019 and December 31, 2018, respectively	322,358	322,701
Operating lease right-of-use liabilities, long-term portion	13,974
Other long-term liabilities	35,156	35,337
Stockholders' equity:
Preferred stock; $0.01 par value; 5,000,000 shares authorized; zero outstanding at March 31, 2019 and December 31, 2018	0	0
Common stock; $0.01 par value; 80,000,000 shares authorized; 27,267,899 and 26,990,034 shares issued and 26,957,350 and 26,747,712 shares outstanding at March 31, 2019 and December 31, 2018, respectively	273	270
Additional paid-in capital	467,373	464,264
Retained deficit	(268,747)	(241,271)
Treasury stock, at cost, 310,549 and 242,322 shares at March 31, 2019 and December 31, 2018, respectively	(4,015)	(3,835)
Total stockholders' equity	194,884	219,428
Total liabilities and stockholders' equity	$ 743,220	$ 761,777