Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
CURRENT ASSETS:
Cash and cash equivalents	$ 47,186	$ 17,697
Accounts receivable, net of allowance of $289 in 2016 and $415 in 2015	66,285	57,986
Inventory	14,054	12,963
Prepaid supplies and other	15,571	12,660
TOTAL CURRENT ASSETS	143,096	101,306
Property and equipment, net	960,998	875,401
Other assets	72,720	26,285
Goodwill and acquired intangibles	38,518	38,729
Intangibles	4,123
TOTAL ASSETS	1,215,332	1,041,721
CURRENT LIABILITIES:
Accounts payable	57,831	44,417
Accrued salaries, wages and benefits	27,338	27,454
Accrued expenses	8,959	8,107
Current portion of debt obligations	35,268	33,740
Unearned revenue	13,151	12,963
TOTAL CURRENT LIABILITIES	142,547	126,681
Long term debt	413,865	283,918
Post-retirement obligations	97,646	108,194
Other liabilities	62,309	61,913
Stock warrants	65,977	0
Deferred income taxes	109,827	96,858
TOTAL LIABILITIES	892,171	677,564
Commitments and contingencies (Notes B and 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; 59,598,299 and 64,077,140 shares issued and outstanding in 2016 and 2015, respectively	596	641
Additional paid-in capital	448,833	518,259
Accumulated deficit	(33,775)	(55,731)
Accumulated other comprehensive loss	(92,493)	(99,012)
TOTAL STOCKHOLDERS’ EQUITY	323,161	364,157
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 1,215,332	$ 1,041,721