Investments (Tables)

9 Months Ended

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