Consolidated Statements of Income (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Income Statement [Abstract]
Net sales	$ 263,545	$ 222,795
Cost of sales	177,715	160,421
Selling and administrative expenses	60,875	37,756
Total operating costs and expenses	238,590	198,177
Operating income	24,955	24,618
Interest expense	4,357	2,368
Other expense (income), net	966	859
Income from continuing operations before income taxes	19,632	21,391
Income taxes	4,199	3,801
Income from continuing operations	15,433	17,590
(Loss) income from discontinued operations, net of income taxes of $183 and $3,004 respectively (Note 2)	(1,961)	4,617
Net income	$ 13,472	$ 22,207
Basic:
Income from continuing operations (in dollars per share)	$ 0.29	$ 0.33
(Loss) income from discontinued operations, net of income taxes (in dollars per share)	$ (0.04)	$ 0.08
Net income (in dollars per share)	$ 0.25	$ 0.41
Diluted:
Income from continuing operations (in dollars per share)	$ 0.28	$ 0.32
(Loss) income from discontinued operations, net of income taxes (in dollars per share)	$ (0.04)	$ 0.08
Net income (in dollars per share)	$ 0.24	$ 0.40
Dividends (in dollars per share)	$ 0.10	$ 0.10
Weighted average common shares outstanding:
Basic (in shares)	54,739,465	54,805,636
Diluted (in shares)	55,524,560	55,455,579