Schedule of Available for Sale Marketable Securities (Detail) - USD ($) $ in Thousands	Sep. 27, 2026	Dec. 31, 2025
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	$ 109,726	$ 105,599
Available-for-sale marketable securities, Unrealized Gain	7	383
Available-for-sale marketable securities, Unrealized (Loss)	(14,044)	(8,846)
Available-for-sale marketable securities, Fair Market Value	95,689	97,136
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	82,553	39,852
U.S. Treasury Securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	18,785	48,723
Available-for-sale marketable securities, Unrealized Gain	0	90
Available-for-sale marketable securities, Unrealized (Loss)	(5,525)	(4,670)
Available-for-sale marketable securities, Fair Market Value	13,260	44,143
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	13,260	13,891
Corporate Debt Securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	62,028	40,090
Available-for-sale marketable securities, Unrealized Gain	7	293
Available-for-sale marketable securities, Unrealized (Loss)	(7,119)	(3,999)
Available-for-sale marketable securities, Fair Market Value	54,916	36,384
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	53,587	22,941
Debt Mutual Funds
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	13,573	14,508
Available-for-sale marketable securities, Unrealized Gain	0	0
Available-for-sale marketable securities, Unrealized (Loss)	(302)	(177)
Available-for-sale marketable securities, Fair Market Value	13,271	14,331
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	3,469	3,020
Certificates of Deposit and Time Deposits
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	1,134	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	1,134	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	14,206	924
Available-for-sale marketable securities, Unrealized Gain	0	0
Available-for-sale marketable securities, Unrealized (Loss)	(1,098)	0
Available-for-sale marketable securities, Fair Market Value	13,108	924
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	$ 12,237	$ 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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