Fair Value Measurement - Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 28, 2025	Dec. 29, 2024
Assets:
Money Market Funds	$ 335,500	$ 272,900
Fair Value, Recurring
Assets:
Total assets measured at fair value	402,592	102,574
Fair Value, Recurring | U.S. Treasuries | Short-term Investments
Assets:
Investments, Fair Value Disclosure	159,617
Fair Value, Recurring | U.S. Treasuries | Long-term Investments
Assets:
Investments, Fair Value Disclosure	65,917
Fair Value, Recurring | Corporate Notes and Debt Securities | Short-term Investments
Assets:
Investments, Fair Value Disclosure	43,281
Fair Value, Recurring | Corporate Notes and Debt Securities | Long-term Investments
Assets:
Investments, Fair Value Disclosure	17,853
Fair Value, Recurring | U.S. Government Agency Debt Securities | Short-term Investments
Assets:
Investments, Fair Value Disclosure	20,418
Fair Value, Recurring | U.S. Government Agency Debt Securities | Long-term Investments
Assets:
Investments, Fair Value Disclosure	5,681
Fair Value, Recurring | Money Market Funds
Assets:
Money Market Funds	89,825	102,574
Fair Value, Recurring | Private Placement Warrants
Liabilities:
Private Placement Warrants	16,632	28,380
Fair Value, Recurring | Level 1
Assets:
Total assets measured at fair value	89,825	102,574
Fair Value, Recurring | Level 1 | U.S. Treasuries | Short-term Investments
Assets:
Investments, Fair Value Disclosure	0
Fair Value, Recurring | Level 1 | U.S. Treasuries | Long-term Investments
Assets:
Investments, Fair Value Disclosure	0
Fair Value, Recurring | Level 1 | Corporate Notes and Debt Securities | Short-term Investments
Assets:
Investments, Fair Value Disclosure	0
Fair Value, Recurring | Level 1 | Corporate Notes and Debt Securities | Long-term Investments
Assets:
Investments, Fair Value Disclosure	0
Fair Value, Recurring | Level 1 | U.S. Government Agency Debt Securities | Short-term Investments
Assets:
Investments, Fair Value Disclosure	0
Fair Value, Recurring | Level 1 | U.S. Government Agency Debt Securities | Long-term Investments
Assets:
Investments, Fair Value Disclosure	0
Fair Value, Recurring | Level 1 | Money Market Funds
Assets:
Money Market Funds	89,825	102,574
Fair Value, Recurring | Level 1 | Private Placement Warrants
Liabilities:
Private Placement Warrants	0	0
Fair Value, Recurring | Level 2
Assets:
Total assets measured at fair value	312,767	0
Fair Value, Recurring | Level 2 | U.S. Treasuries | Short-term Investments
Assets:
Investments, Fair Value Disclosure	159,617
Fair Value, Recurring | Level 2 | U.S. Treasuries | Long-term Investments
Assets:
Investments, Fair Value Disclosure	65,917
Fair Value, Recurring | Level 2 | Corporate Notes and Debt Securities | Short-term Investments
Assets:
Investments, Fair Value Disclosure	43,281
Fair Value, Recurring | Level 2 | Corporate Notes and Debt Securities | Long-term Investments
Assets:
Investments, Fair Value Disclosure	17,853
Fair Value, Recurring | Level 2 | U.S. Government Agency Debt Securities | Short-term Investments
Assets:
Investments, Fair Value Disclosure	20,418
Fair Value, Recurring | Level 2 | U.S. Government Agency Debt Securities | Long-term Investments
Assets:
Investments, Fair Value Disclosure	5,681
Fair Value, Recurring | Level 2 | Money Market Funds
Assets:
Money Market Funds	0	0
Fair Value, Recurring | Level 2 | Private Placement Warrants
Liabilities:
Private Placement Warrants	0	0
Fair Value, Recurring | Level 3
Assets:
Total assets measured at fair value	0	0
Fair Value, Recurring | Level 3 | U.S. Treasuries | Short-term Investments
Assets:
Investments, Fair Value Disclosure	0
Fair Value, Recurring | Level 3 | U.S. Treasuries | Long-term Investments
Assets:
Investments, Fair Value Disclosure	0
Fair Value, Recurring | Level 3 | Corporate Notes and Debt Securities | Short-term Investments
Assets:
Investments, Fair Value Disclosure	0
Fair Value, Recurring | Level 3 | Corporate Notes and Debt Securities | Long-term Investments
Assets:
Investments, Fair Value Disclosure	0
Fair Value, Recurring | Level 3 | U.S. Government Agency Debt Securities | Short-term Investments
Assets:
Investments, Fair Value Disclosure	0
Fair Value, Recurring | Level 3 | U.S. Government Agency Debt Securities | Long-term Investments
Assets:
Investments, Fair Value Disclosure	0
Fair Value, Recurring | Level 3 | Money Market Funds
Assets:
Money Market Funds	0	0
Fair Value, Recurring | Level 3 | Private Placement Warrants
Liabilities:
Private Placement Warrants	$ 16,632	$ 28,380