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Fair Value Measurements of Assets and Liabilities
9 Months Ended
Sep. 27, 2015
Fair Value Disclosures [Abstract]  
Fair Value Measurements of Assets and Liabilities
FAIR VALUE MEASUREMENTS OF ASSETS AND LIABILITIES
Factors used in determining the fair value of our financial assets and liabilities are summarized into three broad categories:
Level 1 – quoted prices in active markets for identical securities as of the reporting date;
Level 2 – other significant directly or indirectly observable inputs, including quoted prices for similar securities, interest rates, prepayment speeds and credit risk; and
Level 3 – significant inputs that are generally less observable than objective sources, including our own assumptions in determining fair value.
The factors or methodology used for valuing securities are not necessarily an indication of the risk associated with investing in those securities.
Following are the disclosures related to the fair value of our financial assets and (liabilities) (in thousands):
September 27, 2015
Level 1
Level 2
Level 3
Total
Available for sale marketable securities:
 
 
 
 
Agency bonds (1)
$

$
34,054

$

$
34,054

Certificates of deposit

18,477


18,477

Municipal bonds

721


721

Corporate bonds

8,715


8,715

Trading securities:
 
 
 
 
Equity securities – mutual funds
8,064



8,064

Derivative contracts, net

1,264


1,264

Total
$
8,064

$
63,231

$

$
71,295


December 31, 2014
Level 1
Level 2
Level 3
Total
Available for sale marketable securities:
 
 
 
 
U.S. treasury notes
$
17,608

$

$

$
17,608

Agency bonds (1)

51,951


51,951

Commercial paper

13,500


13,500

Certificates of deposit

19,122


19,122

Municipal bonds

27,119


27,119

Corporate bonds

10,902


10,902

Trading securities:
 
 
 
 
Equity securities – mutual funds
7,351



7,351

Derivative contracts, net

(2,739
)

(2,739
)
Total
$
24,959

$
119,855

$

$
144,814

(1) Agency bonds are securities backed by U.S. government-sponsored entities.
We use an income approach to value the assets and liabilities for outstanding derivative contracts using current market information as of the reporting date, such as spot rates, interest rate differentials and implied volatility.
There were no transfers between fair value categories or changes to our valuation techniques during the thirty-nine week period ended September 27, 2015.
We believe the carrying amounts of cash and cash equivalents, accounts receivable, accounts payable and other current liabilities are a reasonable approximation of the fair value of those financial instruments because of the nature of the underlying transactions and the short-term maturities involved.