Schedule of Available for Sale Marketable Securities (Detail) - USD ($) $ in Thousands	Jun. 28, 2026	Dec. 31, 2025
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	$ 108,956	$ 105,599
Available-for-sale marketable securities, Unrealized Gain	824	383
Available-for-sale marketable securities, Unrealized (Loss)	(9,096)	(8,846)
Available-for-sale marketable securities, Fair Market Value	100,684	97,136
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	45,403	39,852
U.S. Treasury Securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	18,120	48,723
Available-for-sale marketable securities, Unrealized Gain	13	90
Available-for-sale marketable securities, Unrealized (Loss)	(4,674)	(4,670)
Available-for-sale marketable securities, Fair Market Value	13,459	44,143
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	12,949	13,891
Corporate Debt Securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	62,262	40,090
Available-for-sale marketable securities, Unrealized Gain	658	293
Available-for-sale marketable securities, Unrealized (Loss)	(4,084)	(3,999)
Available-for-sale marketable securities, Fair Market Value	58,836	36,384
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	25,637	22,941
Debt Mutual Funds
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	13,243	14,508
Available-for-sale marketable securities, Unrealized Gain	0	0
Available-for-sale marketable securities, Unrealized (Loss)	(186)	(177)
Available-for-sale marketable securities, Fair Market Value	13,057	14,331
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	3,057	3,020
Certificates of Deposit and Time Deposits
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	1,177	1,354
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	1,177	1,354
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	14,154	924
Available-for-sale marketable securities, Unrealized Gain	153	0
Available-for-sale marketable securities, Unrealized (Loss)	(152)	0
Available-for-sale marketable securities, Fair Market Value	14,155	924
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	$ 3,760	$ 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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