Schedule of Reported Available for Sale Marketable Securities (Detail) - USD ($) $ in Thousands	Mar. 29, 2026	Dec. 31, 2025
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	$ 103,309	$ 105,599
Available-for-sale marketable securities, Unrealized Gain	121	383
Available-for-sale marketable securities, Unrealized (Loss)	(10,410)	(8,846)
Available-for-sale marketable securities, Fair Market Value	93,020	97,136
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	73,148	39,852
Marketable securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	3,656	28,213
Available-for-sale marketable securities, Unrealized Gain	1	41
Available-for-sale marketable securities, Unrealized (Loss)	(4)	(7)
Available-for-sale marketable securities, Fair Market Value	3,653	28,247
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	1,953	2,293
Long-term marketable securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	99,653	77,386
Available-for-sale marketable securities, Unrealized Gain	120	342
Available-for-sale marketable securities, Unrealized (Loss)	(10,406)	(8,839)
Available-for-sale marketable securities, Fair Market Value	89,367	68,889
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	$ 71,195	$ 37,559