Condensed Consolidated Statement of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Income Statement [Abstract]
Net sales	$ 164,136	$ 153,329
Cost of goods sold	120,177	114,303
Gross profit	43,959	39,026
Selling, general and administrative expenses	31,869	28,923
Pension expense	612	1,125
Asset impairment charges	0	690
Operating income	11,478	8,288
Other:
Interest expense	3,848	4,329
Realized and unrealized (gain) loss on derivatives	(898)	4,164
Other expense (income)	45	(32)
Income (loss) from continuing operations before tax	8,483	(173)
Tax provision	3,386	1,006
Income (loss) from continuing operations, net of tax	5,097	(1,179)
Discontinued Operations:
Loss from discontinued operations, net of tax	0	(584)
Gain on disposal of assets, net of tax	0	6,585
Net income from discontinued operations	0	6,001
Net income	$ 5,097	$ 4,822
Basic and diluted per share of common stock
Income (loss) from continuing operations, net of tax, per share	$ 0.40	$ (0.10)
Discontinued operations, net of tax, per share	$ 0.00	$ 0.49
Net income per share	$ 0.40	$ 0.39
Weighted average number of common shares outstanding	12,692	12,277