Stockholders’ Deficit - Schedule of Common Stock Reserved for Future Issuance (Details) - shares	3 Months Ended
Mar. 29, 2025	Dec. 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options outstanding (in shares)	4,211,947	4,392,460
Total common stock reserved for future issuance (in shares)	28,467,996	26,068,326
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issuable (in shares)	145,660	225,967
Vesting percentage	200.00%
Performance Shares \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	200.00%
Equity incentive compensation awards granted and outstanding
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options outstanding (in shares)	6,152,634	6,859,658
2018 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for issuance (in shares)	10,060,157	7,489,593
Forfeited (in shares)	562,368
2018 Equity Incentive Plan \| Performance Shares \| Share-Based Payment Arrangement, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Forfeited (in shares)	80,307
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for issuance (in shares)	4,020,975	3,484,845
Employee Stock Purchase Plan \| Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	200.00%
Notes
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for issuance (in shares)	8,234,230	8,234,230

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Percentage of vesting of award under share-based payment arrangement.

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