CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 20,764	$ 18,161
Receivables (net of allowance of $1,646 and $1,362)	100,521	101,918
Revenue recognized in excess of billings on uncompleted contracts	13,538	14,680
Inventories	108,505	107,166
Deferred income taxes - current	17,203	17,317
Other current assets	11,760	13,964
Total current assets	272,291	273,206
Property, plant and equipment, net	262,602	262,993
Intangibles, net	6,670	7,388
Goodwill	26,330	27,030
Deferred income taxes - long-term	3,675	3,558
Other assets	3,021	3,594
Total assets	574,589	577,769
Current liabilities:
Accounts payable and accrued liabilities	56,257	76,214
Restructuring reserve (Note 1)	671	3,226
Billings in excess of revenue recognized on uncompleted contracts	5,556	3,865
Payroll and benefits payable	10,888	10,114
Accrued income taxes	2,403	2,666
Short-term debt	61	19,565
Total current liabilities	75,836	115,650
Long-term debt	56,049	44,408
Deferred income taxes - long-term	15,074	12,379
Accrued pension and other liabilities	52,597	54,035
Total liabilities	199,556	226,472
Commitments and contingencies (Note 8)
Shareholders' equity:
Common shares, $.01 par value, 100,000,000 shares authorized, 56,799,893 and 56,450,632 shares issued	568	564
Additional paid-in capital	173,513	168,599
Retained earnings	293,295	270,511
Accumulated other comprehensive loss	(20,151)	(16,527)
Total of shareholders' equity before adjusting treasury stock	447,225	423,147
Treasury stock, at cost, 6,435,860 and 6,415,176 shares	(72,192)	(71,850)
Total shareholders' equity	375,033	351,297
Total liabilities and shareholders' equity	$ 574,589	$ 577,769