Changes in Accumulated Other Comprehensive Income (Loss) (Parenthetical) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 01, 2023	Oct. 02, 2022	Oct. 01, 2023	Oct. 02, 2022	Dec. 31, 2022	Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive income (loss), tax	$ (869)	$ (11)	$ (433)	$ 46
Foreign currency translation adjustments, tax	0	0	0	0	$ 0	$ 0
Unrealized (losses) gains on marketable securities, tax	(2,707)	(2,467)	(2,707)	(2,467)	(2,308)	1,055
Unrealized (Losses) Gains on Cash Flow Hedges	667	0	667	0	(708)	0
Retirement plans prior service benefit, tax	(1,131)	(1,130)	(1,131)	(1,130)	$ (1,130)	$ (1,128)
Foreign Currency Translation Reclassification Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss) before reclassifications, tax			0	0
Amounts reclassified from accumulated other comprehensive income (loss), tax			0	0
Other comprehensive income (loss), tax			0	0
Unrealized (Losses) Gains on Marketable Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss) before reclassifications, tax			(408)	(3,570)
Amounts reclassified from accumulated other comprehensive income (loss), tax	0	(11)	9	48
Other comprehensive income (loss), tax			(399)	(3,522)
Unrealized (Losses) Gains on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss) before reclassifications, tax			1,816	0
Amounts reclassified from accumulated other comprehensive income (loss), tax			(441)	0
Other comprehensive income (loss), tax			1,375	0
Retirement Plans Prior Service Credit
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss) before reclassifications, tax			0	0
Amounts reclassified from accumulated other comprehensive income (loss), tax	$ 0	$ 0	(1)	(2)
Other comprehensive income (loss), tax			$ (1)	$ (2)