OPERATING AND GEOGRAPHICAL SEGMENTS 3 (Narrative) (Details) (USD $)			3 Months Ended	6 Months Ended		3 Months Ended	6 Months Ended	12 Months Ended		6 Months Ended
	Jun. 30, 2013 customer	Dec. 31, 2012 distributor	Jun. 30, 2013 Net revenues Customer Concentration Risk	Jun. 30, 2013 Net revenues Customer Concentration Risk	Jun. 30, 2012 Net revenues Customer Concentration Risk customer	Jun. 30, 2013 Net revenues Customer Concentration Risk Major Distributor with Largest Balance	Jun. 30, 2013 Net revenues Customer Concentration Risk Major Distributor with Largest Balance	Dec. 31, 2012 Accounts receivable Customer Concentration Risk Major Distributor with Largest Balance	Dec. 31, 2012 Accounts receivable Customer Concentration Risk Major Distributor with Second Largest Balance	Jun. 30, 2013 Accounts receivable Distributor Concentration Risk [Member] Major Distributor with Largest Balance distributor	Jun. 30, 2013 Accounts receivable Distributor Concentration Risk [Member] Major Distributor with Second Largest Balance	Jun. 30, 2013 Auction-rate securities	Dec. 31, 2012 Auction-rate securities
Concentration Risk [Line Items]
Fair value of investment	$ 3,657,000	$ 3,753,000										$ 1,066,000	$ 1,066,000
Number of major customers	1
Number of major distributors		2								2
Concentration risk percentage			16.00%	14.00%	11.00%	13.00%	12.00%	14.00%	12.00%	17.00%	11.00%
Concentration Risk, Customer					1
Goodwill	104,501,000	104,430,000
Intangible assets, net	31,566,000	27,257,000
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent	$ 121,400,000	$ 102,300,000