UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 124,726	$ 117,066
Restricted cash	4,903	0
Accounts receivable, net of allowance for doubtful accounts of $117 and $153, respectively	77,665	85,197
Accounts receivable – related party	0	425
Inventory	24,900	22,779
Derivative assets	129	162
Income tax receivable	2,539	2,404
Prepayments and other current assets	1,391	1,557
Total current assets	236,253	229,590
Property and equipment, net	62,733	44,623
Operating lease right-of-use assets, net	10,137
Intangible assets, net	1,704	0
Cash deposits and other assets	3,018	4,657
Total assets	313,845	278,870
Current liabilities:
Accounts payable	128,607	116,068
Accounts payable – related party	6	29
Derivative liabilities	126	139
Current portion of finance lease obligations	2,142	883
Current portion of operating lease liabilities	2,245
Other current liabilities	10,709	6,148
Total current liabilities	143,835	123,267
Other long-term liabilities:
Asset retirement obligations	1,549	1,525
Finance lease obligations	4,927	3,209
Operating lease liabilities	7,890
Deferred taxes and other liabilities	5,763	4,271
Total liabilities	163,964	132,272
Commitments and contingencies (Note 14)
Shareholders’ equity:
Preferred stock - $1.00 par value, 960,000 shares authorized, none outstanding	0	0
Common stock - $0.10 par value, 7,500,000 shares authorized, 4,233,587 and 4,217,596 shares outstanding, respectively	423	422
Contributed capital	12,652	11,948
Retained earnings	136,806	134,228
Total shareholders’ equity	149,881	146,598
Total liabilities and shareholders’ equity	$ 313,845	$ 278,870