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Investments (Tables) | 9 Months Ended
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Sep. 27, 2014
Investments |
Summary of the amortized cost and estimated fair value of short-term investments for both available-for-sale and trading securities |
|  | 2014 |  | 2013 |
|  | Amortized |  | Fair |  | Amortized |  | Fair |
(Thousands of dollars) |  | Cost |  | Value |  | Cost |  | Value |
Money market funds |  | $ | 62,965 |  | $ | 62,965 |  | $ | 88,430 |  | $ | 88,430 |
Corporate bonds |  | 10,389 |  | 10,439 |  | 69,591 |  | 70,258 |
U.S. Government agency securities |  | 10,376 |  | 10,355 |  | 27,299 |  | 27,147 |
Asset backed debt securities |  | 2,224 |  | 2,244 |  | 8,446 |  | 8,477 |
Collateralized mortgage obligations |  | 1,192 |  | 1,214 |  | 7,597 |  | 7,600 |
U.S. Treasury securities |  | 521 |  | 521 |  | 5,258 |  | 5,223 |
Emerging markets debt mutual fund |  | - |  | - |  | 17,693 |  | 16,941 |
Total available-for-sale short-term investments |  | 87,667 |  | 87,738 |  | 224,314 |  | 224,076 |
High yield trading debt securities |  | 191,459 |  | 188,645 |  | 49,352 |  | 50,428 |
Equity mutual fund |  | 65,088 |  | 65,050 |  | - |  | - |
Domestic equity ETF |  | 14,877 |  | 15,203 |  | - |  | - |
Emerging markets trading debt mutual fund |  | 3,309 |  | 2,849 |  | 3,202 |  | 2,858 |
Emerging markets trading debt securities |  | 1,678 |  | 1,660 |  | 1,300 |  | 1,336 |
Money market funds held in trading accounts |  | 390 |  | 390 |  | 11,033 |  | 11,033 |
Other trading investments |  | 1,435 |  | 1,430 |  | 841 |  | 918 |
Total available-for-sale and trading short-term investments |  | $ | 365,903 |  | $ | 362,965 |  | $ | 290,042 |  | $ | 290,649 |
Summary of estimated fair value of fixed rate securities designated as available-for-sale, classified by the contractual maturity date of the security |
(Thousands of dollars) |  | 2014 |
Due within one year |  | $ | 815 |
Due after one year through three years |  | 8,374 |
Due after three years |  | 11,229 |
Total fixed rate securities |  | $ | 20,418 |

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- Definition A table of investments, shown as a text block. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 6 -Section 10 -Paragraph (c) -Subparagraph (1) + Details
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- Definition Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. + References No definition available. + Details
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