Cash Cash Equivalents Short Term And Long Term Investments

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Components of cash, cash equivalents and investments.

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Total of debt securities categorized neither as held-to-maturity nor trading which are intended be sold or mature within one year from the balance sheet date or the normal operating cycle, whichever is longer.

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Total of debt securities categorized neither as held-to-maturity nor trading which are intended be sold or mature more than one year from the balance sheet date or operating cycle, if longer.

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Unrestricted cash available for day-to-day operating needs, for an entity that has cash equivalents, but does not aggregate cash equivalents with cash on the balance sheet.

+ References

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Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits are not generally reported as cash and cash equivalents. Includes cash and cash equivalents associated with the entity's continuing operations. Excludes cash and cash equivalents associated with the disposal group (and discontinued operation).

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This item represents the aggregate carrying amount of all cost-method investments as reported on or included in the balance sheet. The original cost of the investments may differ from the aggregate carrying amount disclosed due to various adjustments such as: (i) dividends received in excess of earnings after the date of investment that are considered a return of investment and therefore recorded as reductions to cost of the investment, or (ii) a series of operating losses of an investee or other factors which may indicate that a decrease in value of the investment has occurred which is other than temporary and accordingly such decrease in value has been recognized.

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The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle).

+ References

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Investment in short-term money-market instruments (such as commercial paper, banker's acceptances, repurchase agreements, government securities, certificates of deposit, and so forth) which are highly liquid (that is, readily convertible to known amounts of cash) and so near their maturity that they present an insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify as cash equivalents by definition. Original maturity means an original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.

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Other (not elsewhere specified in the taxonomy) short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.

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Cash, Cash Equivalents and Investments (Details) (USD $) In Thousands	Jul. 03, 2011	Dec. 31, 2010	Jul. 04, 2010	Dec. 31, 2009
Components of cash, cash equivalents and investments
Cash	$ 28,679	$ 26,650
Money market instruments	2,452	6,553
Treasury bills	11,545	0
Cash and cash equivalents	42,676	33,203	37,942	119,831
Short-term investments	202,012	147,823
Limited partnership interest (accounted for using cost method)	5,933	5,933
Long-term investments	108,700	102,055
Total	353,388	283,081
Treasury bills [Member]
Components of cash, cash equivalents and investments
Short-term investments	12,979	2,494
Long-term investments	691	0
Municipal bonds [Member]
Components of cash, cash equivalents and investments
Short-term investments	86,029	75,457
Long-term investments	32,674	34,794
Corporate bonds [Member]
Components of cash, cash equivalents and investments
Short-term investments	68,425	34,543
Long-term investments	37,319	36,762
Agency bonds [Member]
Components of cash, cash equivalents and investments
Short-term investments	23,428	15,979
Long-term investments	14,988	21,025
Sovereign bonds [Member]
Components of cash, cash equivalents and investments
Short-term investments	11,151	19,350
Long-term investments	10,380	0
Covered bonds [Member]
Components of cash, cash equivalents and investments
Long-term investments	$ 6,715	$ 3,541