Marketable Securities (Tables)

6 Months Ended

Jul. 01, 2017

Schedule of Available-for-Sale Securities Reconciliation

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

		July 1, 2017
		Amortized		Unrealized		Unrealized		Fair
		Cost		Gain		Loss		Value
U.S. Treasury securities		$	627,443	$	104	$	(960)	$	626,587
Foreign government securities			6,971		1		(3)		6,969
Corporate debt securities			1,794,831		1,463		(1,243)		1,795,051
Time deposits			295,845		-		-		295,845
Equity securities			77		70		-		147
	Total	$	2,725,167	$	1,638	$	(2,206)	$	2,724,599

Amounts included in:
	Cash equivalents	$	165,909	$	-	$	(1)	$	165,908
	Investments		2,559,258		1,638		(2,205)		2,558,691
	Total	$	2,725,167	$	1,638	$	(2,206)	$	2,724,599

		December 31, 2016
		Amortized		Unrealized		Unrealized		Fair
		Cost		Gain		Loss		Value
U.S. Treasury securities		$	570,695	$	253	$	(635)	$	570,313
Foreign government securities			17,999		-		(8)		17,991
Corporate debt securities			1,645,468		496		(2,126)		1,643,838
Time deposits			199,906		-		-		199,906
Equity securities			77		70		-		147
	Total	$	2,434,145	$	819	$	(2,769)	$	2,432,195

Amounts included in:
	Cash equivalents	$	124,793	$	1	$	-	$	124,794
	Investments		2,309,352		818		(2,769)		2,307,401
	Total	$	2,434,145	$	819	$	(2,769)	$	2,432,195

Investments Classified By Contractual Maturity Date

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

		July 1, 2017		December 31, 2016
Due in one year or less		$	1,591,388	$	1,388,537
Due after one year through three years			837,219		843,605
	Total	$	2,428,607	$	2,232,142