Marketable Securities

9 Months Ended

Sep. 27, 2015

Investments, Debt and Equity Securities [Abstract]

Marketable Securities

MARKETABLE SECURITIES

Our marketable debt securities consisted of the following:

(In thousands)	September 27, 2015		December 28, 2014
Short-term marketable securities
Marketable debt securities
U.S Treasury securities	$	170,815	$	238,488
Corporate debt securities	184,579		208,346
U.S. agency securities	56,274		32,009
Municipal securities	3,242		13,622
Certificates of deposit	63,583		109,293
Commercial paper	20,993		34,985
Total short-term marketable securities	$	499,486	$	636,743
Long-term marketable securities
Marketable debt securities
Corporate debt securities	$	96,454	$	71,191
U.S. agency securities	132,132		95,204
Municipal securities	—		1,425
Total long-term marketable securities	$	228,586	$	167,820

As of September 27, 2015, our short-term and long-term marketable securities had remaining maturities of less than 1 month to 12 months and 13 months to 36 months, respectively. See Note 8 for additional information regarding the fair value of our marketable securities.