Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Consolidated Statements Of Operations [Abstract]
Net sales	$ 790,058	$ 766,607	$ 637,454
Cost of sales	640,498	621,492	533,586
Gross profit	149,560	145,115	103,868
Selling, general, and administrative expense	104,671	108,957	99,546
Intangible asset impairment	4,628		76,964
Income (loss) from operations	40,261	36,158	(72,642)
Interest expense	18,582	19,363	19,714
Other income	(488)	(90)	(77)
Income (loss) before taxes	22,167	16,885	(92,279)
Provision for (benefit of) income taxes	9,517	7,669	(16,923)
Income (loss) from continuing operations	12,650	9,216	(75,356)
Discontinued operations:
(Loss) income before taxes	(289)	13,840	(27,125)
(Benefit of) provision for income taxes	(284)	6,533	(11,413)
(Loss) income from discontinued operations	(5)	7,307	(15,712)
Net income (loss)	$ 12,645	$ 16,523	$ (91,068)
Net income (loss) per share - Basic:
Income (loss) from continuing operations	$ 0.41	$ 0.30	$ (2.49)
Income (loss) from discontinued operations	$ 0.00	$ 0.24	$ (0.52)
Net income (loss)	$ 0.41	$ 0.54	$ (3.01)
Weighted average shares outstanding - Basic	30,752	30,507	30,303
Net income (loss) per share - Diluted:
Income (loss) from continuing operations	$ 0.41	$ 0.30	$ (2.49)
Income (loss) from discontinued operations	$ 0.00	$ 0.24	$ (0.52)
Net income (loss)	$ 0.41	$ 0.54	$ (3.01)
Weighted average shares outstanding - Diluted	30,857	30,650	30,303