Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
CURRENT ASSETS:
Cash and cash equivalents	$ 27,631	$ 16,358
Accounts receivable, net of allowance of $1,273 in 2017 and $1,264 in 2016	83,981	77,247
Inventory	18,454	19,925
Prepaid supplies and other	24,481	19,123
TOTAL CURRENT ASSETS	154,547	132,653
Property and equipment, net	1,057,877	1,000,992
Other assets	82,799	80,099
Goodwill and acquired intangibles	45,588	45,586
Intangibles	8,315	8,453
Goodwill	37,273	37,133
TOTAL ASSETS	1,340,811	1,259,330
CURRENT LIABILITIES:
Accounts payable	76,269	60,704
Accrued salaries, wages and benefits	27,032	37,044
Accrued expenses	9,553	10,324
Current portion of debt obligations	26,531	29,306
Unearned revenue	25,233	18,407
TOTAL CURRENT LIABILITIES	164,618	155,785
Long term debt	481,886	429,415
Post-retirement obligations	74,674	77,713
Other liabilities	51,294	52,542
Stock Warrants	97,831	89,441
Deferred income taxes	129,425	122,532
TOTAL LIABILITIES	999,728	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; 59,563,749 and 59,461,291 shares issued and outstanding in 2017 and 2016, respectively	596	595
Additional paid-in capital	441,300	443,416
Accumulated deficit	(22,255)	(32,243)
Accumulated other comprehensive loss	(78,558)	(79,866)
TOTAL STOCKHOLDERS’ EQUITY	341,083	331,902
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 1,340,811	$ 1,259,330