Schedule of Reported Available for Sale Marketable Securities (Detail) - USD ($) $ in Thousands	Apr. 04, 2021	Dec. 31, 2020
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	$ 556,642	$ 601,976
Available-for-sale marketable securities, Unrealized Gain	5,072	9,077
Available-for-sale marketable securities, Unrealized (Loss)	(952)	(213)
Available-for-sale marketable securities, Fair Market Value	560,762	610,840
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	65,454	70,418
Marketable securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	478,221	522,228
Available-for-sale marketable securities, Unrealized Gain	95	92
Available-for-sale marketable securities, Unrealized (Loss)	(23)	(40)
Available-for-sale marketable securities, Fair Market Value	478,293	522,280
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	47,468	61,806
Long-term marketable securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	78,421	79,748
Available-for-sale marketable securities, Unrealized Gain	4,977	8,985
Available-for-sale marketable securities, Unrealized (Loss)	(929)	(173)
Available-for-sale marketable securities, Fair Market Value	82,469	88,560
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	$ 17,986	$ 8,612

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

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563

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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.

+ References

No definition available.

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This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References

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This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized neither as held-to-maturity nor trading securities.

+ References

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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