Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net sales	$ 962,069	$ 693,459	$ 715,903
Cost of sales	585,386	399,245	408,520
Gross profit	376,683	294,214	307,383
Selling, general and administrative expenses	231,833	137,123	147,405
Engineering, research and development expenses	87,711	55,320	50,940
Amortization of intangible assets	37,067	9,347	9,594
Contingent consideration fair value adjustment	(1,282)	(1,813)	0
Operating income	21,354	94,237	99,444
Interest expense	33,355	153	271
Interest income	(1,336)	(317)	(281)
Other expense (income), net	2,727	(1,794)	(249)
(Loss) income before income tax (benefit) expense and equity in net loss (income) of affiliates	(13,392)	96,195	99,703
Income tax (benefit) expense	(21,572)	21,669	30,881
Equity in net loss (income) of affiliates	293	0	(3)
Net income	$ 7,887	$ 74,526	$ 68,825
Earnings Per Share:
Basic net income per common share	$ 0.06	$ 0.54	$ 0.50
Diluted net income per common share	$ 0.06	$ 0.53	$ 0.50
Weighted shares outstanding
Basic	139,311	138,950	137,306
Diluted	140,062	139,618	138,412