CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Sales	$ 239,543	$ 202,149	$ 699,052	$ 569,683
Cost of sales	160,692	134,697	475,306	382,530
Gross profit	78,851	67,452	223,746	187,153
Selling, general, and administrative expenses	53,854	48,223	153,795	140,821
Restructuring charges	(18)	120	696	5,875
Operating income	25,015	19,109	69,255	40,457
Interest expense	1,226	4,877	8,615	13,440
Other income (expense), net	4,077	(4,274)	1,473	(3,369)
Income before income tax expense	27,866	9,958	62,113	23,648
Income tax expense	9,477	3,618	21,547	6,417
Net Income	$ 18,389	$ 6,340	$ 40,566	$ 17,231
Net earnings per share
Basic (in dollars per share)	$ 0.40	$ 0.14	$ 0.88	$ 0.38
Diluted (in dollars per share)	$ 0.39	$ 0.14	$ 0.87	$ 0.37
Dividends per share (in dollars per share)	$ 0.10	$ 0.02	$ 0.26	$ 0.06
Weighted-average shares outstanding
Basic (in shares)	46,250,362	45,636,771	46,219,291	45,631,910
Diluted (in shares)	46,792,225	46,154,165	46,858,766	46,020,432