Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Assets:
Cash	$ 41,116	$ 26,560
Accounts receivable (net of $4.6 million and $8.3 million allowance for doubtful accounts, respectively)	61,281	60,136
Prepaid expenses	26,536	24,410
Other current assets	3,650	5,030
Total current assets	132,583	116,136
Property, plant and equipment (net of $1,377.6 million and $1,281.2 million accumulated depreciation, respectively)	1,064,630	1,118,781
Intangible assets (net of $59.8 million and $54.3 million accumulated amortization, respectively)	78,379	83,879
Restricted cash	652	651
Other assets	3,012	3,079
Total assets	1,279,256	1,322,526
Liabilities and Stockholders’ Deficit:
Current portion of long-term debt	6,400	6,400
Current portion of capital lease obligations	1,110	918
Accounts payable	28,861	28,157
Claims payable and estimated claims accrual	0	216
Accrued interest payable	9,983	9,983
Accrued payroll and related expenses	24,361	24,753
Other accrued liabilities	52,139	49,802
Total current liabilities	122,854	120,229
Capital lease obligations	1,269	1,223
Accrued pension obligations	149,911	150,562
Accrued post-employment benefit obligations	93,545	94,042
Deferred income taxes, net	17,335	35,075
Other long-term liabilities	18,822	22,739
Long-term debt, net of current portion	899,206	900,145
Total long-term liabilities	1,180,088	1,203,786
Total liabilities	1,302,942	1,324,015
Commitments and contingencies (See Note 13)
Stockholders’ deficit:
Common stock, $0.01 par value, 37,500,000 shares authorized, 27,050,600 and 26,921,066 shares issued and outstanding at June 30, 2016 and December 31, 2015, respectively	271	269
Additional paid-in capital	525,377	521,842
Retained deficit	(659,709)	(707,592)
Accumulated other comprehensive income	110,375	183,992
Total stockholders’ deficit	(23,686)	(1,489)
Total liabilities and stockholders’ deficit	$ 1,279,256	$ 1,322,526