Share-based payments - Summary of Restricted Common Stock Unit Activity (Details) - Restricted stock unit	12 Months Ended
	Dec. 31, 2023 $ / shares shares
Units
Outstanding at beginning (in shares) | shares	364,277
Granted (in shares) | shares	299,008
Vested/Converted (in shares) | shares	(130,771)
Forfeited (in shares) | shares	(15,479)
Outstanding at ending (in shares) | shares	517,035
Nonvested balance at end of period (in shares) | shares	502,251
Weighted-Average Grant-Date Fair Value per Share ($)
Outstanding at beginning (in usd per share) | $ / shares	$ 57.86
Granted (in usd per share) | $ / shares	41.09
Vested/Converted (in usd per share) | $ / shares	52.98
Forfeited (in usd per share) | $ / shares	66.50
Outstanding at ending (in usd per share) | $ / shares	49.14
Nonvested balance at end of period (in usd per share) | $ / shares	$ 48.85