Earnings per share - Schedule of Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022
Numerator for basic and diluted loss per share
Net income/(loss)	$ 2,627	$ (7,970)	$ (13,186)	$ (2,667)	$ (5,343)	$ (15,853)
Weighted average number of shares outstanding - basic (in shares)	75,145		67,136		74,804	67,028
Net effect of dilutive stock options and restricted stock units	1,705		0		0	0
Weighted average number of shares outstanding - diluted (in shares)	76,850		67,136		74,804	67,028
Net income/(loss) per share
Basic (in dollars per share)	$ 0.03		$ (0.20)		$ (0.07)	$ (0.24)
Diluted (in dollars per share)	$ 0.03		$ (0.20)		$ (0.07)	$ (0.24)