Net income (loss) per share - Basic and diluted weighted average shares outstanding (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Numerator:
Net income (loss)	$ 124,044	$ (21,319)
Denominator for basic net income (loss) per share:
Weighted average shares outstanding-basic	40,632,087	38,049,430
Denominator for diluted net income (loss) per share:
Weighted average shares outstanding-basic	40,632,087	38,049,430
Common stock options and restricted stock units	1,529,239
Weighted average shares outstanding-diluted	42,161,326	38,049,430