Schedule of Available for Sale Marketable Securities (Detail) - USD ($) $ in Thousands	Jun. 29, 2025	Dec. 31, 2024
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	$ 105,179	$ 126,001
Available-for-sale marketable securities, Unrealized Gain	223	98
Available-for-sale marketable securities, Unrealized (Loss)	(9,387)	(10,078)
Available-for-sale marketable securities, Fair Market Value	96,015	116,021
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	61,559	63,538
U.S. Treasury Securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	46,656	49,879
Available-for-sale marketable securities, Unrealized Gain	37	14
Available-for-sale marketable securities, Unrealized (Loss)	(4,783)	(4,951)
Available-for-sale marketable securities, Fair Market Value	41,910	44,942
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	32,277	30,530
Corporate Debt Securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	39,262	40,395
Available-for-sale marketable securities, Unrealized Gain	186	79
Available-for-sale marketable securities, Unrealized (Loss)	(4,389)	(4,778)
Available-for-sale marketable securities, Fair Market Value	35,059	35,696
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	24,249	27,824
Debt Mutual Funds
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	12,564	9,299
Available-for-sale marketable securities, Unrealized Gain	0	0
Available-for-sale marketable securities, Unrealized (Loss)	(214)	(348)
Available-for-sale marketable securities, Fair Market Value	12,350	8,951
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	2,715	3,238
U.S. Government Agency Securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	4,041	3,966
Available-for-sale marketable securities, Unrealized Gain	0	5
Available-for-sale marketable securities, Unrealized (Loss)	(1)	(1)
Available-for-sale marketable securities, Fair Market Value	4,040	3,970
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	2,318	1,946
Certificates of Deposit and Time Deposits
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	1,694	21,689
Available-for-sale marketable securities, Unrealized Gain	0	0
Available-for-sale marketable securities, Unrealized (Loss)	0	0
Available-for-sale marketable securities, Fair Market Value	1,694	21,689
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	0	0
Non-U.S. Government Securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	962	773
Available-for-sale marketable securities, Unrealized Gain	0	0
Available-for-sale marketable securities, Unrealized (Loss)	0	0
Available-for-sale marketable securities, Fair Market Value	962	773
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	$ 0	$ 0

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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