CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Statement of Operations
NET SALES	$ 160,577	$ 163,120	$ 491,938	$ 449,120
COST OF GOODS SOLD	115,383	102,143	333,736	286,893
Gross profit	45,194	60,977	158,202	162,227
OPERATING EXPENSES
Selling, general and administrative	23,404	22,837	67,389	65,678
Research and development	7,304	7,212	20,355	20,403
Other operating expenses	1,120	1,098	3,408	3,448
Total operating expenses	31,828	31,147	91,152	89,529
Income from operations	13,366	29,830	67,050	72,698
OTHER INCOME (EXPENSES)	(2,300)	(2,415)	(7,444)	(5,694)
Income before income taxes and noncontrolling interest	11,066	27,415	59,606	67,004
INCOME TAX PROVISION	359	5,346	9,912	11,705
NET INCOME	10,707	22,069	49,694	55,299
Less: NET INCOME attributable to noncontrolling interest	(750)	(907)	(2,072)	(2,532)
NET INCOME attributable to common stockholders	$ 9,957	$ 21,162	$ 47,622	$ 52,767
EARNINGS PER SHARE attributable to common stockholders
Basic	$ 0.22	$ 0.48	$ 1.05	$ 1.20
Diluted	$ 0.21	$ 0.46	$ 1.02	$ 1.16
Number of shares used in computation
Basic	45,603	44,346	45,252	44,031
Diluted	47,093	45,673	46,875	45,418