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Marketable Securities
3 Months Ended
Apr. 30, 2014
Marketable Securities

3. Marketable Securities

During all periods shown, marketable securities are classified as available-for-sale. The amortized cost, gross unrealized gains (losses) and fair value of available-for-sale securities by major security type and class of security as of April 30, 2014, January 31, 2014 and April 30, 2013 were as follows:

 

     Amortized
Cost
     Unrealized
Gains
     Unrealized
(Losses)
    Fair
Value
 

As of April 30, 2014

          

Short-term Investments:

          

Corporate bonds

   $ 54,678       $ 30       $ (17   $ 54,691   

Municipal and pre-refunded municipal bonds

     44,522         41         —          44,563   

Certificates of deposit

     23,348         10         (1     23,357   

Commercial paper

     24,678         6         —          24,684   

Treasury bills

     2,498         3         —          2,501   
  

 

 

    

 

 

    

 

 

   

 

 

 
     149,724         90         (18     149,796   
  

 

 

    

 

 

    

 

 

   

 

 

 

Long-term Investments:

          

Corporate bonds

     85,583         168         (31     85,720   

Municipal and pre-refunded municipal bonds

     68,511         178         (14     68,675   

Certificates of deposit

     1,499         1         —          1,500   

Treasury bills

     15,404         9         —          15,413   

Mutual funds, held in rabbi trust

     2,579         33         (12     2,600   

Federal government agencies

     1,782         4         —          1,786   
  

 

 

    

 

 

    

 

 

   

 

 

 
     175,358         393         (57     175,694   
  

 

 

    

 

 

    

 

 

   

 

 

 
   $ 325,082       $ 483       $ (75   $ 325,490   
  

 

 

    

 

 

    

 

 

   

 

 

 

As of January 31, 2014

          

Short-term Investments:

          

Corporate bonds

   $ 100,856       $ 56       $ (41   $ 100,871   

Municipal and pre-refunded municipal bonds

     85,000         98         (2     85,096   

Certificates of deposit

     35,844         13         (1     35,856   

Commercial paper

     35,101         7         (1     35,107   

Treasury bills

     24,873         10         —          24,883   
  

 

 

    

 

 

    

 

 

   

 

 

 
     281,674         184         (45     281,813   
  

 

 

    

 

 

    

 

 

   

 

 

 

Long-term Investments:

          

Corporate bonds

     208,446         268         (162     208,552   

Municipal and pre-refunded municipal bonds

     125,934         415         (8     126,341   

Certificates of deposit

     4,000         —           (2     3,998   

Treasury bills

     21,551         21         —          21,572   

Mutual funds, held in rabbi trust

     1,591         108         (33     1,666   

Federal government agencies

     4,287         6         —          4,293   
  

 

 

    

 

 

    

 

 

   

 

 

 
     365,809         818         (205     366,422   
  

 

 

    

 

 

    

 

 

   

 

 

 
   $ 647,483       $ 1,002       $ (250   $ 648,235   
  

 

 

    

 

 

    

 

 

   

 

 

 

 

     Amortized
Cost
     Unrealized
Gains
     Unrealized
(Losses)
    Fair
Value
 

As of April 30, 2013

          

Short-term Investments:

          

Corporate bonds

   $ 76,563       $ 49       $ (26   $ 76,586   

Municipal and pre-refunded municipal bonds

     75,507         58         (1     75,564   

Certificate of deposit

     40,222         23         —          40,245   

Commercial paper

     8,476         6         —          8,482   

Treasury bills

     12,060         1         —          12,061   

Federal government agencies

     2,000         —           —          2,000   
  

 

 

    

 

 

    

 

 

   

 

 

 
     214,828         137         (27     214,938   
  

 

 

    

 

 

    

 

 

   

 

 

 

Long-term Investments:

          

Corporate bonds

     76,717         117         (44     76,790   

Municipal and pre-refunded municipal bonds

     50,913         121         (4     51,030   

Certificate of deposit

     2,099         1         —          2,100   

Treasury bills

     9,666         4         —          9,670   

Mutual funds, held in rabbi trust

     328         9         —          337   

Federal government agencies

     9,845         —           (1     9,844   
  

 

 

    

 

 

    

 

 

   

 

 

 
     149,568         252         (49     149,771   
  

 

 

    

 

 

    

 

 

   

 

 

 
   $ 364,396       $ 389       $ (76   $ 364,709   
  

 

 

    

 

 

    

 

 

   

 

 

 

Proceeds from the sale and maturities of available-for-sale securities were $485,375 and $155,801 for the three months ended April 30, 2014 and 2013, respectively. The Company included in “Other expense, net,” realized gains of $70 and realized losses of $215 and a net charge related to amortization of discounts and premiums of $2,607 and $2,192 for the three months ended April 30, 2014 and 2013, respectively. Mutual funds represent assets held in an irrevocable rabbi trust for the Company’s Non-qualified Deferred Compensation Plan (“NQDC”). These assets are a source of funds to match the funding obligations to participants in the NQDC but are subject to the Company’s general creditors. The Company elected the fair value option for financial assets for the mutual funds held in the rabbi trust resulting in all unrealized gains and losses being recorded in “Other expense, net” in the Condensed Consolidated Statements of Income and not as a component of accumulated other comprehensive income (loss).