Marketable Securities (Tables)

3 Months Ended

Apr. 04, 2015

Cash, Cash Equivalents, and Short-term Investments [Abstract]

Schedule of Cash, Cash Equivalents and Short-term Investments

The Company's marketable securities within cash equivalents and investments included in the consolidated balance sheets are detailed as follows (in thousands):

		April 4, 2015
		Amortized		Unrealized		Unrealized		Fair
		Cost		Gain		Loss		Value
U.S. Treasury securities		$	640,441	$	1,270	$	(18)	$	641,693
Foreign government securities			24,994		-		-		24,994
Corporate debt securities			1,066,695		1,171		(130)		1,067,736
Time deposits			64,265		-		-		64,265
Equity securities			77		70		-		147
	Total	$	1,796,472	$	2,511	$	(148)	$	1,798,835

Amounts included in:
	Cash equivalents	$	130,588	$	-	$	-	$	130,588
	Investments		1,665,884		2,511		(148)		1,668,247
	Total	$	1,796,472	$	2,511	$	(148)	$	1,798,835

		December 31, 2014
		Amortized		Unrealized		Unrealized		Fair
		Cost		Gain		Loss		Value
U.S. Treasury securities		$	626,683	$	246	$	(157)	$	626,772
Foreign government securities			24,998		-		-		24,998
Corporate debt securities			984,668		125		(688)		984,105
Time deposits			64,240		-		-		64,240
Equity securities			77		70		-		147
	Total	$	1,700,666	$	441	$	(845)	$	1,700,262

Amounts included in:
	Cash equivalents	$	67,051	$	-	$	-	$	67,051
	Investments		1,633,615		441		(845)		1,633,211
	Total	$	1,700,666	$	441	$	(845)	$	1,700,262

Investments Classified by Contractual Maturity Date

The estimated fair value of marketable debt securities by maturity date is as follows (in thousands):

		April 4, 2015		December 31, 2014
Due in one year or less		$	897,303	$	872,872
Due after one year through three years			837,120		763,003
	Total	$	1,734,423	$	1,635,875