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COMMITMENTS AND CONTINGENCIES 1 (Details) (USD $)
12 Months Ended 1 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Aug. 31, 2011
San Jose Corporate Headquarters [Member]
Dec. 31, 2011
San Jose Corporate Headquarters [Member]
Aug. 30, 2011
San Jose Corporate Headquarters [Member]
Dec. 31, 2012
Capital purchase commitments
Dec. 31, 2012
Wafer purchase commitments
Telefunken Semiconductors GmbH & Co. KG
Dec. 31, 2012
Wafer purchase commitments
LFoundry
Leases [Abstract]                  
Total rental expense $ 25,000,000 $ 20,100,000 $ 19,700,000            
Sales consideration         48,500,000        
Lease term of new corporate headquarters located at 1600 Technology Drive in San Jose, California (the Technology Drive Lease)       10 years          
Future minimum rental payment of new corporate headquarters located at 1600 Technology Drive in San Jose, California (the Technology Drive Lease) 68,497,000         52,600,000      
Aggregate non-cancelable future minimum rental payments under operating leases                  
2013 8,992,000                
2014 8,990,000                
2015 7,610,000                
2016 7,377,000                
2017 6,758,000                
Thereafter 28,770,000                
Total operating lease 68,497,000         52,600,000      
Leases Additional Disclosure [Abstract]                  
Purchase Commitments             $ 13,800,000 $ 27,100,000 $ 43,900,000