Fair Value of Financial Instruments - Unrealized gains and losses (Details) - USD ($) $ in Thousands	Dec. 28, 2024	Dec. 30, 2023
Fair Value
Less Than 12 Months	$ 26,318	$ 40,704
12 Months or Greater	4,187	126,882
Total	30,505	167,586
Gross Unrealized Losses
Less Than 12 Months	(49)	(128)
12 Months or Greater	(15)	(1,307)
Total	(64)	(1,435)
Corporate debt securities
Fair Value
Less Than 12 Months	0	12,449
12 Months or Greater	4,187	95,760
Total	4,187	108,209
Gross Unrealized Losses
Less Than 12 Months	0	(13)
12 Months or Greater	(15)	(867)
Total	(15)	(880)
Government debt securities
Fair Value
Less Than 12 Months	26,318	28,255
12 Months or Greater	0	31,122
Total	26,318	59,377
Gross Unrealized Losses
Less Than 12 Months	(49)	(115)
12 Months or Greater	0	(440)
Total	$ (49)	$ (555)