CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 55,256	$ 53,133
Receivables (net of allowance of $1,728 and $1,526)	98,568	95,232
Revenue recognized in excess of billings on uncompleted contracts	9,631	10,763
Inventories	108,256	98,446
Deferred income taxes - current	16,987	19,827
Other current assets	14,676	15,561
Total current assets	303,374	292,962
Property, plant and equipment, net	310,532	290,586
Intangibles, net	4,882	6,281
Goodwill	25,895	26,197
Deferred income taxes - long-term	2,586	2,870
Other assets	1,905	2,765
Total assets	649,174	621,661
Current liabilities:
Accounts payable and accrued liabilities	55,730	53,614
Restructuring reserve	132	280
Billings in excess of revenue recognized on uncompleted contracts	3,628	5,430
Payroll and benefits payable	12,217	14,725
Accrued income taxes	3,848	537
Short-term debt	835	833
Current portion of long-term debt	5,625
Total current liabilities	82,015	75,419
Long-term debt	96,331	70,448
Deferred income taxes - long-term	32,017	31,879
Accrued pension and other liabilities	33,416	38,442
Total liabilities	$ 243,779	$ 216,188
Commitments and contingencies (Note 11)
Stockholders' equity:
Common stock, $.01 par value, 100,000,000 shares authorized, 57,633,570 and 57,469,389 shares issued	$ 576	$ 575
Additional paid-in capital	180,682	176,475
Retained earnings	393,469	365,594
Treasury stock, at cost, 9,426,260 and 8,196,372 shares	(133,143)	(109,661)
Accumulated other comprehensive loss	(36,189)	(27,510)
Total stockholders' equity	405,395	405,473
Total liabilities and stockholders' equity	$ 649,174	$ 621,661