Summary of significant accounting policies and basis of presentation - Net Income (Loss) Per Share - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities	10,450,407	8,818,841	7,357,134
Numerator:
Net (loss) income	$ (65,002)	$ 132,330	$ (46,408)
Denominator for basic net (loss) income per share:
Weighted average shares outstanding-basic	57,667,543	43,020,747	38,356,810
Denominator for diluted net (loss) income per share:
Weighted average shares outstanding-basic	57,667,543	43,020,747	38,356,810
Common stock options and restricted stock units		1,548,587
Weighted average shares outstanding-diluted	57,667,543	44,569,334	38,356,810
Financial instruments with off-balance sheet risk	$ 0
Unvested restricted common stock awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities		22,500	45,000
Unvested restricted common stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities	1,649,943	1,370,897	1,112,563
Employee Stock Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities	8,800,464	7,425,444	6,199,571