CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 2,811	$ 2,675
Receivables, net	29,562	23,198
Refundable income taxes	804	1,487
Inventories	27,471	31,824
Spare parts	12,047	11,729
Other current assets	2,438	1,576
Assets of discontinued operations-current	1,044	1,050
Total current assets	76,177	73,539
Property, plant, and equipment, net	277,417	289,840
Deferred income taxes	40,348	43,386
Other assets	54,616	57,097
Total Assets	448,558	463,862
Current liabilities:
Accounts payable	19,313	22,740
Deferred income taxes	12,306	11,844
Accrued and other liabilities	31,599	35,556
Liabilities of discontinued operations - current	2,757	2,791
Total current liabilities	65,975	72,931
Long-term debt	169,579	170,868
Post-retirement benefits	22,966	21,647
Pension	48,554	55,075
Other noncurrent liabilities	11,615	15,829
Total liabilities	318,689	336,350
Stockholders' equity	129,869	127,512
Total Liabilities and Stockholders' Equity	$ 448,558	$ 463,862

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).