Schedule of Reported Available for Sale Marketable Securities (Detail) - USD ($) $ in Thousands	Jul. 02, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	$ 1,019,284	$ 1,304,711
Available-for-sale marketable securities, Unrealized Gain	5,167	2,977
Available-for-sale marketable securities, Unrealized (Loss)	(2,612)	(2,821)
Available-for-sale marketable securities, Fair Market Value	1,021,839	1,304,867
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	928,688	732,979
Marketable securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	810,544	871,321
Available-for-sale marketable securities, Unrealized Gain	15	134
Available-for-sale marketable securities, Unrealized (Loss)	(1,221)	(431)
Available-for-sale marketable securities, Fair Market Value	809,338	871,024
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	770,963	423,128
Long-term marketable securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	208,740	433,390
Available-for-sale marketable securities, Unrealized Gain	5,152	2,843
Available-for-sale marketable securities, Unrealized (Loss)	(1,391)	(2,390)
Available-for-sale marketable securities, Fair Market Value	212,501	433,843
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	$ 157,725	$ 309,851

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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