CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
CURRENT ASSETS:
Cash and cash equivalents	$ 32,880	$ 26,751
Customer receivables, net of allowance for doubtful accounts of $506 and $549 in 2013 and 2012, respectively	82,688	56,888
Other receivables	9,296	7,708
Inventories	58,525	61,192
Deferred income taxes	4,592	4,591
Prepaid expenses and other current assets	11,626	5,584
Total current assets	199,607	162,714
PROPERTY, PLANT AND EQUIPMENT, net	247,868	267,377
OTHER ASSETS:
Goodwill	100,697	100,697
Other intangible assets, net	129,645	134,180
Deferred financing costs, net of accumulated amortization of $4,981 and $4,127 in 2013 and 2012, respectively	5,886	6,741
Deferred income taxes	4,874	5,052
Other	1,267	1,055
TOTAL	689,844	677,816
CURRENT LIABILITIES:
Accounts payable	72,174	59,181
Accrued payroll and compensation	9,960	10,726
Accrued interest payable	12,634	12,543
Accrued workers compensation	4,344	5,868
Accrued and other liabilities	17,516	18,443
Total current liabilities	116,628	106,761
LONG-TERM DEBT	349,658	324,133
DEFERRED INCOME TAXES	20,376	19,021
NON-CURRENT INCOME TAXES PAYABLE	8,211	8,211
OTHER POSTRETIREMENT BENEFIT PLAN LIABILITY	83,256	82,689
PENSION BENEFIT PLAN LIABILITY	52,147	56,438
OTHER LIABILITIES	14,112	15,690
STOCKHOLDERS' EQUITY:
Preferred Stock, $0.01 par value; 10,000,000 shares authorized	0	0
Common Stock, $0.01 par value; 80,000,000 shares authorized, 47,515,155 and 47,385,314 shares issued and outstanding at June 30, 2013 and December 31, 2012, respectively, and additional paid-in-capital	439,421	438,277
Accumulated other comprehensive loss	(51,086)	(51,834)
Accumulated deficiency	(342,879)	(321,570)
Total stockholders' equity	45,456	64,873
TOTAL	$ 689,844	$ 677,816