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Investments Investments (Tables)
 12 Months Ended
Dec. 29, 2012
Investments [Abstract]  
Schedule of available-for-sale investments
Available-for-sale investments at the end of 2012 were as follows:
(In thousands)
 
Adjusted Cost
 
Gross Unrealized Gains
 
Gross Unrealized Losses
 
Fair Value
 
 
 
 
 
 
 
 
 
Cash equivalents:
 
 
 
 
 
 
 
 
Money market funds
 
$
68,267

 
$
—

 
$
—

 
$
68,267

Time deposits
 
24,068

 
—

 
—

 
24,068

Total cash equivalents
 
92,335

 
—

 
—

 
92,335

 
 
 
 
 
 
 
 
 
Short-term investments:
 
 
 
 
 
 
 
 
Time deposits
 
90,535

 
17

 
(2
)
 
90,550

Commercial paper
 
86,500

 
15

 
(57
)
 
86,458

Government and corporate bonds
 
542,236

 
497

 
(76
)
 
542,657

Total short-term investments
 
719,271

 
529

 
(135
)
 
719,665

 
 
 
 
 
 
 
 
 
Long-term investments:
 
 
 
 
 
 
 
 
Time deposits
 
6,190

 
10

 
(3
)
 
6,197

Government and corporate bonds
 
496,845

 
324

 
(399
)
 
496,770

Total long-term investments
 
503,035

 
334

 
(402
)
 
502,967

 
 
 
 
 
 
 
 
 
Total available-for-sale investments
 
$
1,314,641

 
$
863

 
$
(537
)
 
$
1,314,967