Fair Value Measurement - Schedule of Cash Equivalents and Short-term Investments (Details) - USD ($) $ in Thousands	Sep. 28, 2025	Dec. 29, 2024
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Amortized Cost	$ 402,865	$ 102,574
Unrealized Gain	8	0
Unrealized Loss	(281)	0
Estimated Fair Value	402,592	102,574
Cash Equivalents
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Estimated Fair Value	89,825	102,574
Short-term Investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Estimated Fair Value	223,316	0
Long-term Investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Estimated Fair Value	89,451	0
Money Market Funds
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Amortized Cost	89,825	102,574
Unrealized Gain	0	0
Unrealized Loss	0	0
Estimated Fair Value	89,825	102,574
Money Market Funds | Cash Equivalents
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Estimated Fair Value	89,825	102,574
Money Market Funds | Short-term Investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Estimated Fair Value	0	0
Money Market Funds | Long-term Investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Estimated Fair Value	0	$ 0
U.S. Treasuries
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Amortized Cost	225,740
Unrealized Gain	0
Unrealized Loss	(206)
Estimated Fair Value	225,534
U.S. Treasuries | Cash Equivalents
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Estimated Fair Value	0
U.S. Treasuries | Short-term Investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Estimated Fair Value	159,617
U.S. Treasuries | Long-term Investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Estimated Fair Value	65,917
Corporate Notes and Debt Securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Amortized Cost	61,209
Unrealized Gain	0
Unrealized Loss	(75)
Estimated Fair Value	61,134
Corporate Notes and Debt Securities | Cash Equivalents
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Estimated Fair Value	0
Corporate Notes and Debt Securities | Short-term Investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Estimated Fair Value	43,281
Corporate Notes and Debt Securities | Long-term Investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Estimated Fair Value	17,853
U.S. Government Agency Debt Securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Amortized Cost	26,091
Unrealized Gain	8
Unrealized Loss	0
Estimated Fair Value	26,099
U.S. Government Agency Debt Securities | Cash Equivalents
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Estimated Fair Value	0
U.S. Government Agency Debt Securities | Short-term Investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Estimated Fair Value	20,418
U.S. Government Agency Debt Securities | Long-term Investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Estimated Fair Value	$ 5,681