Consolidated Balance Sheets (unaudited) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 26,505	$ 22,745
Trade receivables, net	45,642	71,276
Other receivables	11,873	12,943
Inventories, net	101,405	89,965
Prepaid expenses and other current assets	8,977	5,631
Total current assets	194,402	202,560
Property, plant and equipment, net	162,269	171,966
Goodwill	45,108	38,670
Intangible assets, net	8,908	4,011
Investments in and advances to partially-owned affiliates	788	13,364
Deferred income taxes	27,830	19,799
Other non-current assets	5,027	7,667
Total assets	444,332	458,037
Current liabilities:
Accounts payable	34,004	29,052
Deferred revenue	11,787	20,121
Accrued expenses and other current liabilities	43,510	48,098
Total current liabilities	89,301	97,271
Long-term debt	60,000	79,250
Deferred income taxes	11,533	12,835
Accrued pension benefits	34,634	40,123
Other non-current liabilities	16,459	18,338
Total liabilities	211,927	247,817
Stockholders' equity:
Common stock, $.10 par value; authorized 100,000,000, issued 32,753,105 and 32,240,795 shares at respective dates	3,274	3,223
Additional paid-in capital	116,518	109,765
Retained earnings	160,596	131,178
Treasury stock, at cost, 1,757,530 and 1,757,530 shares at respective dates	(14,984)	(14,984)
Accumulated other comprehensive loss	(32,999)	(18,962)
Total stockholders' equity	232,405	210,220
Total liabilities and stockholders' equity	$ 444,332	$ 458,037