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Workforce Reduction (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Dec. 31, 2023
Restructuring Cost and Reserve [Line Items] |  |
Restructuring costs | $ 1,264 |
Restructuring reserve | 1,476 | $ 3,380
Employee Severance |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring costs |  | 3,380
Payments for restructuring, net | 1,904 |
Restructuring reserve | 1,476 |
Employee Severance | Research and Developement |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring costs |  | 3,026
Employee Severance | Selling, General and Administrative Expenses |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring costs |  | $ 354
One-time Termination Benefits |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring costs | 1,264 |
One-time Termination Benefits | Research and Developement |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring costs | 1,201 |
One-time Termination Benefits | Selling, General and Administrative Expenses |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring costs | $ 63 |

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