Net (loss) income per share - Basic and diluted weighted average shares outstanding (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Numerator:
Net (loss) income	$ (22,208)	$ (19,087)	$ 101,836	$ (40,406)
Denominator for basic net (loss) income per share:
Weighted average shares outstanding-basic	43,520,137	38,298,426	42,102,101	38,183,192
Denominator for diluted net (loss) income per share:
Weighted average shares outstanding-basic	43,520,137	38,298,426	42,102,101	38,183,192
Common stock options and restricted stock units			1,668,898
Weighted average shares outstanding-diluted	43,520,137	38,298,426	43,770,999	38,183,192