CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 45,518	$ 22,745
Trade receivables, less allowances of $346 and $1,058 at respective dates	77,124	71,276
Other receivables	10,610	12,943
Inventories, net	85,630	89,965
Prepaid expenses and other current assets	8,688	5,631
Total current assets	227,570	202,560
Property, plant and equipment, net	163,567	171,966
Goodwill	43,912	38,670
Intangible assets, net	8,902	4,011
Investments in and advances to partially-owned affiliates	665	13,364
Deferred income taxes	38,424	19,799
Other non-current assets	4,032	7,667
Total assets	487,072	458,037
Current liabilities:
Accounts payable	43,670	29,052
Deferred revenue	14,095	20,121
Accrued expenses and other current liabilities	41,014	48,098
Total current liabilities	98,779	97,271
Long-term debt	60,000	79,250
Deferred income taxes	10,545	12,835
Accrued pension benefits	50,949	40,123
Other non-current liabilities	15,573	18,338
Total liabilities	235,846	247,817
Commitments and contingencies (see Notes 19 and 20)
Stockholders' equity:
Common Stock, $.10 par value; authorized 100,000,000 issued 32,836,930 and 32,240,795 shares at respective dates	3,284	3,223
Additional paid-in capital	119,265	109,765
Retained earnings	188,481	131,178
Treasury stock, at cost, 1,738,624 and 1,757,530 shares at respective dates	(14,823)	(14,984)
Accumulated other comprehensive loss	(44,981)	(18,962)
Total stockholders' equity	251,226	210,220
Total liabilities and stockholders' equity	$ 487,072	$ 458,037