| Three Months Ended March 31, | Change | |||||||||||
| 2024 | 2023 | $ | ||||||||||
| Employee-related expenses | $ | 14,882 | $ | 7,722 | $ | 7,160 | ||||||
| Laboratory materials and supplies | 5,799 | 4,479 | 1,320 | |||||||||
| Facilities and overhead costs | 5,777 | 5,338 | 439 | |||||||||
| Other research and development expenses and consulting costs | 4,981 | 2,591 | 2,390 | |||||||||
| Total research and development expense | $ | 31,439 | $ | 20,130 | $ | 11,309 | ||||||
| Years ended December 31, | Change | |||||||||||
| 2023 | 2022 | $ | ||||||||||
| Personnel-related costs | $ | 39,848 | $ | 22,436 | $ | 17,412 | ||||||
| Laboratory materials and supplies | 20,014 | 10,518 | 9,496 | |||||||||
| Facilities and overhead costs | 20,927 | 7,325 | 13,602 | |||||||||
| Other research and development expenses and consulting costs | 13,614 | 2,860 | 10,754 | |||||||||
| Total research and development expense | $ | 94,403 | $ | 43,139 | $ | 51,264 | ||||||
