Schedule of Available for Sale Marketable Securities (Detail) - USD ($) $ in Thousands	Apr. 02, 2023	Dec. 31, 2022
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	$ 175,745	$ 123,839
Available-for-sale marketable securities, Unrealized Gain	425	73
Available-for-sale marketable securities, Unrealized (Loss)	(8,583)	(11,041)
Available-for-sale marketable securities, Fair Market Value	167,587	112,871
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	123,376	99,763
U.S. Treasury Securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	55,615	44,030
Available-for-sale marketable securities, Unrealized Gain	38
Available-for-sale marketable securities, Unrealized (Loss)	(3,485)	(4,381)
Available-for-sale marketable securities, Fair Market Value	52,168	39,649
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	49,669	39,649
Corporate Debt Securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	56,040	57,006
Available-for-sale marketable securities, Unrealized Gain	41	3
Available-for-sale marketable securities, Unrealized (Loss)	(4,712)	(6,153)
Available-for-sale marketable securities, Fair Market Value	51,369	50,856
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	49,131	50,667
Commercial Paper
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	47,225	7,089
Available-for-sale marketable securities, Unrealized Gain	337	70
Available-for-sale marketable securities, Unrealized (Loss)	(14)
Available-for-sale marketable securities, Fair Market Value	47,548	7,159
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	16,845
U.S. Government Agency Securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	7,427	6,442
Available-for-sale marketable securities, Unrealized Gain	9
Available-for-sale marketable securities, Unrealized (Loss)	(42)	(90)
Available-for-sale marketable securities, Fair Market Value	7,394	6,352
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	4,419	6,352
Debt Mutual Funds
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	7,130	6,997
Available-for-sale marketable securities, Unrealized (Loss)	(330)	(417)
Available-for-sale marketable securities, Fair Market Value	6,800	6,580
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	3,312	3,095
Certificates of Deposit and Time Deposits
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	1,754	1,740
Available-for-sale marketable securities, Fair Market Value	1,754	1,740
Non-U.S. Government Securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	554	535
Available-for-sale marketable securities, Fair Market Value	$ 554	$ 535

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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