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STOCKHOLDERS' EQUITY (Details) (USD $) In Thousands	3 Months Ended		6 Months Ended
STOCKHOLDERS' EQUITY (Details) (USD $) In Thousands	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Stock-based compensation expense
Total stock-based compensation expense, before income taxes	$ 14,257	$ 21,650	$ 33,146	$ 31,622
Tax benefit	(2,433)		(5,077)
Total stock-based compensation expense, net of income taxes	11,824	21,650	28,069	31,622
Allocated Share-based Compensation, Credit classified within acquisition related charges (credits)		0		(3,065)
Cost of revenues
Stock-based compensation expense
Total stock-based compensation expense, before income taxes	2,347	2,187	4,640	3,864
Research and development
Stock-based compensation expense
Total stock-based compensation expense, before income taxes	4,786	6,301	10,768	9,585
Selling, general and administrative
Stock-based compensation expense
Total stock-based compensation expense, before income taxes	$ 7,124	$ 13,162	$ 17,738	$ 18,173

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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