Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
CURRENT ASSETS:
Cash and cash equivalents	$ 63,020	$ 16,358
Accounts receivable, net of allowance of $1,380 in 2017 and $1,264 in 2016	75,303	77,247
Inventory	16,412	19,925
Prepaid supplies and other	23,918	19,123
TOTAL CURRENT ASSETS	178,653	132,653
Property and equipment, net	1,074,239	1,000,992
Other assets	86,526	80,099
Goodwill and acquired intangibles	45,455	45,586
Intangibles	8,176	8,453
Goodwill	37,279	37,133
TOTAL ASSETS	1,384,873	1,259,330
CURRENT LIABILITIES:
Accounts payable	77,945	60,704
Accrued salaries, wages and benefits	30,963	37,044
Accrued expenses	9,902	10,324
Current portion of debt obligations	20,133	29,306
Unearned revenue	22,480	18,407
TOTAL CURRENT LIABILITIES	161,423	155,785
Long term debt	508,152	429,415
Post-retirement obligations	71,866	77,713
Other liabilities	50,143	52,542
Stock Warrants	177,850	89,441
Deferred income taxes	135,506	122,532
TOTAL LIABILITIES	1,104,940	927,428
Commitments and contingencies (Note G)
STOCKHOLDERS’ EQUITY:
Preferred stock, 20,000,000 shares authorized, including 75,000 Series A Junior Participating Preferred Stock	0	0
Common stock, par value $0.01 per share; 85,000,000 shares authorized; 59,123,112 and 59,461,291 shares issued and outstanding in 2017 and 2016, respectively	591	595
Additional paid-in capital	432,510	443,416
Accumulated deficit	(75,981)	(32,243)
Accumulated other comprehensive loss	(77,187)	(79,866)
TOTAL STOCKHOLDERS’ EQUITY	279,933	331,902
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 1,384,873	$ 1,259,330