CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
CONDENSED CONSOLIDATED STATEMENTS OF INCOME [Abstract]
Revenues	$ 73,854	$ 51,717
Cost of sales (exclusive of amortization of intangibles, included below)	34,709	20,816
GROSS PROFIT	39,145	30,901
Selling, general and administrative expenses	12,335	10,339
Acquisition related costs	519	8,460
Research and development expenses	5,969	2,877
Amortization of intangibles	1,733	1,563
TOTAL OPERATING EXPENSES	20,556	23,239
OPERATING INCOME	18,589	7,662
Amortization of deferred financing costs	(204)	(193)
Non-cash interest expense	(1,226)	(1,183)
Interest expense, net	(978)	(1,044)
Equity in earnings of unconsolidated joint venture	76	0
Income before income taxes	16,257	5,242
Income tax provision	5,415	2,134
CONSOLIDATED NET INCOME	10,842	3,108
CONSOLIDATED NET INCOME PER SHARE:
BASIC (in dollars per share)	$ 0.11	$ 0.03
DILUTED (in dollars per share)	$ 0.10	$ 0.03
SHARES USED IN COMPUTING CONSOLIDATED NET INCOME PER SHARE:
BASIC (in shares)	95,926	95,011
DILUTED (in shares)	111,551	109,169
COMPREHENSIVE INCOME:
CONSOLIDATED NET INCOME	10,842	3,108
Foreign currency translation gain (loss)	358	(2,203)
COMPREHENSIVE INCOME	$ 11,200	$ 905