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Fair Value of Financial Instruments (Tables)
6 Months Ended
Jun. 29, 2014
Fair Value of Financial Instruments (Thousands of Dollars) [Abstract]  
Fair Value Hierarchy
At June 29, 2014, June 30, 2013 and December 29, 2013, the Company had the following assets and liabilities measured at fair value in its consolidated balance sheets:

 
 
  
Fair Value Measurements Using:
 
 
 
Fair
Value
  
Quoted
Prices in
Active
Markets
for
Identical
Assets
(Level 1)
  
Significant
Other
Observable
Inputs
(Level 2)
  
Significant
Unobservable
Inputs
(Level 3)
 
June 29, 2014
 
  
  
  
 
Assets:
 
  
  
  
 
Available-for-sale securities
 
$
40,712
   
7,183
   
27,912
   
5,617
 
Derivatives
  
533
   
-
   
533
   
-
 
Total assets
 
$
41,245
   
7,183
   
28,445
   
5,617
 
 
                
Liabilities:
                
Derivatives
 
$
16,131
   
-
   
16,131
   
-
 
 
                
June 30, 2013
                
Assets:
                
Available-for-sale securities
 
$
23,641
   
8
   
18,244
   
5,389
 
Derivatives
  
16,890
   
-
   
15,900
   
990
 
Total assets
 
$
40,531
   
8
   
34,144
   
6,379
 
 
                
Liabilities:
                
Derivatives
 
$
1,235
   
-
   
1,235
   
-
 
 
                
December 29, 2013
                
Assets:
                
Available-for-sale securities
 
$
28,048
   
-
   
22,564
   
5,484
 
Derivatives
  
4,627
   
-
   
4,627
   
-
 
Total assets
 
$
32,675
   
-
   
27,191
   
5,484
 
 
                
Liabilities:
                
Derivatives
 
$
12,330
   
-
   
12,330
   
-
 

Available-for-sale securities include equity securities of one company quoted on an active public market as well as certain investments valued at net asset values quoted on private markets that are not active. These net asset values are predominantly based on underlying investments which are traded on an active market; investments are redeemable within 45 days. The Company also holds an available-for-sale investment in Brazil similar to a repurchase agreement; this investment is valued at the principal plus any interest accrued on the instrument. Lastly, the Company holds an available-for-sale investment which invests in hedge funds which contain financial instruments that are valued using certain estimates which are considered unobservable in that they reflect the investment manager's own assumptions about the inputs that market participants would use in pricing the asset or liability. The Company believes that these estimates are the best information available for use in the fair value of this investment. The Company's derivatives consist primarily of foreign currency forward contracts. At December 29, 2013, the Company also had forward-starting interest rate swap contracts related to the anticipated issuance of the Notes Due 2021 and 2044. The Company uses current forward rates of the respective foreign currencies and U.S. treasury interest rates to measure the fair value of these contracts. At June 30, 2013, the Company had derivative instruments consisting of warrants to purchase common stock of an unrelated company. The Company used the Black-Scholes model to value these warrants. One of the inputs used in the Black-Scholes model, historical volatility, is considered an unobservable input in that it reflected the Company's own assumptions about the inputs that market participants would use in pricing the asset or liability. The Company believed that this is the best information available for use in the fair value measurement. There were no changes in these valuation techniques during 2014.
Reconciliation of Level 3 Fair Value
The following is a reconciliation of the beginning and ending balances of the fair value measurements of the Company's financial instruments which use significant unobservable inputs (Level 3):

 
 
2014
  
2013
 
Balance at beginning of year
 
$
5,484
   
7,618
 
Gain (loss) from change in fair value
  
133
   
(1,239
)
Balance at end of second quarter
 
$
5,617
   
6,379