Unaudited Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 14,117	$ 8,822
Trade accounts receivable, net of allowance for doubtful accounts of $3,347 and $2,482, respectively	20,954	22,043
Other accounts receivable	7,557	7,650
Inventory	7,506	7,465
Prepaid expenses	6,290	3,799
Restricted cash	3,460
Other current assets	2,271	3,110
Total current assets	62,155	52,889
Vessels, equipment, and other fixed assets at cost, net of accumulated depreciation of $498,847 and $468,817, respectively	1,004,972	970,522
Construction in progress	1,605	24,698
Deferred costs and other assets	2,761	5,794
Total assets	1,071,493	1,053,903
Current liabilities:
Current maturities of long term debt	117,156	483,326
Debtor in possession financing	17,000
Accounts payable	8,729	11,666
Income and other taxes payable	3,788	3,678
Accrued personnel costs	9,514	9,109
Accrued interest expense	755	8,163
Other accrued liabilities	4,882	9,305
Total current liabilities	161,824	525,247
Long-term income taxes:
Deferred income tax liabilities	124,581	58,094
Other income taxes payable	17,763	17,768
Other liabilities	3,235	3,173
Total liabilities not subject to compromise	307,403	604,282
Liabilities subject to compromise	448,124
Stockholders' equity:
Preferred stock, $0.01 par value; 2,000 shares authorized; no shares issued	0	0
Class A Common Stock, $0.01 par value; 60,000 shares authorized; 29,629 and 29,104 shares issued and 27,957 and 27,122 outstanding, respectively; Class B Common Stock $0.01 per value; 60,000 shares authorized; no shares issued	289	278
Additional paid-in capital	400,397	411,983
Retained earnings	81,775	241,207
Accumulated other comprehensive income (loss)	(125,611)	(148,402)
Treasury stock, at cost	(50,148)	(64,580)
Deferred compensation expense	9,264	9,135
Total stockholders' equity	315,966	449,621
Total liabilities and stockholders' equity	$ 1,071,493	$ 1,053,903