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RESTRUCTURING (Details) (USD $)
 12 Months Ended 0 Months Ended 12 Months Ended 0 Months Ended 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2012
2009 Restructuring Plan
Dec. 31, 2011
2009 Restructuring Plan
Dec. 31, 2010
2009 Restructuring Plan
Jun. 09, 2009
2009 Restructuring Plan
Workforce Reduction
Dec. 31, 2012
2009 Restructuring Plan
Workforce Reduction
Dec. 31, 2011
2009 Restructuring Plan
Workforce Reduction
item
Dec. 31, 2010
2009 Restructuring Plan
Workforce Reduction
Jun. 09, 2009
2009 Restructuring Plan
Workforce Reduction
China and United States
item
Dec. 31, 2012
2009 Restructuring Plan
Lease Costs
Dec. 31, 2011
2009 Restructuring Plan
Lease Costs
Dec. 31, 2010
2009 Restructuring Plan
Lease Costs
Dec. 31, 2010
2009 Restructuring Plan
Other Costs
Dec. 31, 2011
2008 Restructuring Plan
Dec. 31, 2010
2008 Restructuring Plan
Dec. 31, 2008
2008 Restructuring Plan
Dec. 31, 2011
2008 Restructuring Plan
Workforce Reduction
Dec. 31, 2010
2008 Restructuring Plan
Workforce Reduction
Dec. 31, 2008
2008 Restructuring Plan
Workforce Reduction
item
Dec. 31, 2008
2008 Restructuring Plan
Workforce Reduction
China
item
Dec. 31, 2008
2008 Restructuring Plan
Workforce Reduction
Korea
item
Dec. 31, 2008
2008 Restructuring Plan
Workforce Reduction
Other locations
item
Dec. 31, 2010
2008 Restructuring Plan
Lease Costs
Dec. 31, 2010
2008 Restructuring Plan
Other Costs
Dec. 31, 2010
2007 Restructuring Plan
Lease Costs
Restructuring                                                      
Reduction in workforce as a percentage of the company's headcount             50.00%                                        
Reduction in workforce                 50   2,300                   750 350 200 200      
Reversal of restructuring charges       $ 200,000 $ 1,600,000                                            
Total restructuring costs recorded       58,400,000                       19,700,000                      
Activity in the accrued restructuring balances related to the plans                                                      
Balance at the beginning of the period 1,692,000 11,417,000 21,707,000 1,692,000 11,396,000 18,461,000   231,000 9,425,000 16,939,000   1,461,000 1,971,000 1,516,000 6,000 21,000 2,941,000   21,000 2,526,000         385,000 30,000 305,000
Restructuring Charges 358,000 2,386,000 16,018,000 358,000 2,364,000 15,710,000   49,000 2,052,000 14,613,000   309,000 312,000 1,052,000 45,000 22,000 308,000 13,100,000 22,000 338,000           (30,000)  
Cash Payments   (12,111,000) (24,205,000) (2,050,000) (12,068,000) (20,672,000)   (280,000) (11,246,000) (20,075,000)   (1,770,000) (822,000) (597,000)   (43,000) (3,228,000)   (43,000) (2,843,000)         (385,000)   (305,000)
Settlement of Stock -based Compensation     (2,103,000)     (2,103,000)       (2,052,000)         (51,000)                        
Balance at the end of the period   $ 1,692,000 $ 11,417,000   $ 1,692,000 $ 11,396,000     $ 231,000 $ 9,425,000     $ 1,461,000 $ 1,971,000     $ 21,000     $ 21,000