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INVESTMENTS IN SECURITIES (Tables)
12 Months Ended
Dec. 25, 2016
Investments, Debt and Equity Securities [Abstract]  
Schedule of Available-For-Sale Securities
The following table summarizes our investments in available-for-sale securities:
 
December 25, 2016
 
December 27, 2015
 

Cost
 
Fair
Value
 

Cost
 
Fair
Value
 
(In thousands)
Cash equivalents:
 
 
 
 
 
 
 
Fixed income securities
$
44,865

 
$
44,865

 
$
290,795

 
$
290,795

Other
61

 
61

 
54,831

 
54,831