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Investments and Fair Value Measurements (Details 6) (USD $)
In Thousands
Jul. 03, 2011
Jan. 02, 2011
Related costs and the fair values based on quoted market prices    
Carrying Value $ 1,759,217 $ 1,711,032
1% Sr. Convertible Notes due 2013 [Member]
   
Related costs and the fair values based on quoted market prices    
Carrying Value 1,024,073 993,199
Fair Value 1,110,475 1,118,375
1.5% Sr. Convertible Notes due 2017 [Member]
   
Related costs and the fair values based on quoted market prices    
Carrying Value 735,144 717,833
Fair Value 1,085,050 1,132,500
Convertible Debt [Member]
   
Related costs and the fair values based on quoted market prices    
Carrying Value 1,759,217 1,711,032
Fair Value $ 2,195,525 $ 2,250,875