Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current assets
Cash and cash equivalents	$ 95,713	$ 92,919
Accounts receivable, net	44,883	43,529
Inventory	30,814	29,180
Other current assets	8,967	7,283
Total current assets	180,377	172,911
Property, plant and equipment, net	108,613	116,497
Intangibles, net	6,930	7,336
Goodwill	15,714	15,714
Deferred tax assets, net	70,454	71,834
Other long-term assets	22,037	21,627
Total assets	404,125	405,919
Current liabilities
Current portion of long-term debt and other borrowings	10,143	10,143
Accounts payable	18,980	18,608
Accrued expenses and other liabilities	32,836	37,360
Total current liabilities	61,959	66,111
Asset retirement obligations	13,243	12,883
Long-term debt, net and other borrowings	181,488	183,927
Other long-term liabilities	29,037	28,397
Total liabilities	285,727	291,318
Commitments and contingencies (See Note 15)
Stockholders’ equity
Preferred stock ($0.01 par value, 25,000 shares authorized; no shares issued and outstanding)	0	0
Common stock ($0.01 par value, 250,000 shares authorized; 39,750 and 39,251 shares issued and outstanding, respectively)	398	393
Additional paid-in capital	253,530	251,641
Accumulated deficit	(133,136)	(136,473)
Accumulated other comprehensive loss	(2,394)	(960)
Total stockholders’ equity	118,398	114,601
Total liabilities and stockholders’ equity	$ 404,125	$ 405,919