Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Statement [Abstract]
Net Sales	$ 253,171	$ 234,960	$ 453,786	$ 425,992
Cost of sales	209,052	194,837	379,752	356,005
Gross profit	44,119	40,123	74,034	69,987
Selling, general, and administrative expense	32,918	25,393	53,863	54,924
Income from operations	11,201	14,730	20,171	15,063
Interest expense	3,811	3,691	7,511	7,331
Other expense (income)	1,101	519	(2,458)	549
Income before taxes	6,289	10,520	15,118	7,183
Provision for income taxes	2,202	4,089	5,494	2,838
Income from continuing operations	4,087	6,431	9,624	4,345
Discontinued operations:
Loss before taxes	0	0	(44)	0
Benefit of income taxes	0	0	(16)	0
Loss from discontinued operations	0	0	(28)	0
Net income	$ 4,087	$ 6,431	$ 9,596	$ 4,345
Net earnings per share – Basic:
Income from continuing operations	$ 0.13	$ 0.21	$ 0.31	$ 0.14
Loss from discontinued operations	0.00	0.00	0.00	0.00
Net income	$ 0.13	$ 0.21	$ 0.31	$ 0.14
Weighted average shares outstanding – Basic	31,210	31,066	31,200	31,028
Net earnings per share – Diluted:
Income from continuing operations	$ 0.13	$ 0.21	$ 0.31	$ 0.14
Loss from discontinued operations	0.00	0.00	0.00	0.00
Net income	$ 0.13	$ 0.21	$ 0.31	$ 0.14
Weighted average shares outstanding – Diluted	31,495	31,271	31,440	31,235