Condensed Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Condensed Consolidated Statements of Comprehensive Income [Abstract]
Net sales	$ 94,279	$ 78,405	$ 190,379	$ 147,412
Cost of sales	60,689	54,863	121,369	100,840
Gross profit	33,590	23,542	69,010	46,572
Selling, general and administrative expenses	20,866	17,364	39,467	34,021
Income from operations	12,724	6,178	29,543	12,551
Interest expense, net	4,299	4,010	8,710	7,974
Income before income taxes	8,425	2,168	20,833	4,577
Provision (benefit) for income taxes	86	62	182	(2,586)
Net income	8,339	2,106	20,651	7,163
Basic earnings per common share	$ 0.54	$ 0.14	$ 1.33	$ 0.47
Basic weighted average common shares outstanding	15,571,207	15,397,476	15,522,492	15,345,529
Diluted earnings per common share	$ 0.48	$ 0.12	$ 1.22	$ 0.42
Diluted weighted average common shares outstanding	17,210,177	17,153,179	16,964,082	16,982,058
Comprehensive income	$ 8,339	$ 2,106	$ 20,651	$ 7,347