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Stock-based compensation (Tables)
 6 Months Ended
Jun. 30, 2024
Share-Based Payment Arrangement [Abstract]  
Summary of Stock-Based Compensation Expense by Award Type
Stock-based compensation expense recognized by award type was as follows (in thousands):
For the three months ended June 30,
For the six months ended June 30,
2024202320242023
Stock options$1,057 $2,717 $2,900 $6,582 
Restricted stock units1,314 4,924 4,092 10,651 
Employee Stock Purchase Plan14 99 77 173 
$2,385 $7,740 $7,069 $17,406 
Schedule of Stock-Based Compensation Expense by Classification
Stock-based compensation expense by classification included within the condensed consolidated statements of operations and comprehensive income (loss) was as follows (in thousands):
For the three months ended June 30,
For the six months ended June 30,
2024202320242023
Research and development$350 $3,372 $1,995 $6,990 
Selling, general and administrative1,509 4,368 4,037 10,416 
Restructuring expenses526 — 1,037 — 
$2,385 $7,740 $7,069 $17,406