Stockholders' Equity (Schedule of Changes in Accumulated Other Comprehensive Income (loss) by Component) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 29, 2025	Jun. 30, 2024
Estimated tax benefit (provision)
Beginning balance	$ (7)	$ 3
Other comprehensive income (loss) before reclassifications	196	37
Less: Amount reclassified from accumulated other comprehensive income (loss)	172	34
Net current period other comprehensive income (loss)	24	3
Ending balance	17	6
AOCI, after tax
Beginning balance	541,066	535,495
Other comprehensive income (loss) before reclassifications	(923)	(368)
Less: Amount reclassified from accumulated other comprehensive income (loss)	(648)	(128)
Net current period other comprehensive income (loss)	(275)	(240)
Ending balance	523,158	459,399
Unrealized gains (losses) on available-for-sale investments
AOCI, before tax
Beginning balance	169	126
Other comprehensive income (loss) before reclassifications	(134)	(219)
Less: Amount reclassified from accumulated other comprehensive income (loss)	0	0
Net current period other comprehensive income (loss)	(134)	(219)
Ending balance	35	(93)
Unrealized gains (losses) on derivatives
AOCI, before tax
Beginning balance	79	7
Other comprehensive income (loss) before reclassifications	(985)	(186)
Less: Amount reclassified from accumulated other comprehensive income (loss)	(820)	(162)
Net current period other comprehensive income (loss)	(165)	(24)
Ending balance	(86)	(17)
AOCI
AOCI, after tax
Beginning balance	241	136
Ending balance	$ (34)	$ (104)