STOCKHOLDERS’ EQUITY Components of the company's stock-based compensation expense, net of amount capitalized in inventory (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 13,687	$ 15,617
Total share-based compensation expense, before income taxes	13,687	15,617
Tax benefit	(2,867)	(2,924)
Total share-based compensation expense, net of income taxes	10,820	12,693
Cost of Sales [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	1,115	1,316
Research and Development Expense [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	3,578	4,729
Selling, General and Administrative Expenses [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 8,994	$ 9,572