Basic and diluted net income (loss) per share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net income (loss) attributable to ordinary shares as reported	$ (37,303)	$ (26,576)	$ (24,008)	$ (4,647)	$ (26,458)	$ (13,124)	$ (14,641)	$ (4,128)	$ 4,917	$ 9,284	$ 1,655	$ 3,952	$ (92,534)	$ (58,351)	$ 19,808
Net income (loss) used in computing basic net income (loss) per share													(92,534)	(58,351)	19,808
Adjustment needed in calculating diluted net income (loss) per share													0	0	0
Net income (loss) used in computing diluted net income (loss) per share													$ (92,534)	$ (58,351)	$ 19,808
Weighted average number of ordinary shares used in computing basic net income (loss) per share (in shares)	105,026,945	104,884,583	104,627,789	104,186,120	103,884,288	103,731,147	103,484,866	102,633,545	101,945,085	101,234,306	100,718,893	99,877,567	104,660,476	103,433,274	100,930,866
Potentially dilutive shares that were excluded from the computation of basic net income (loss) per share:
Weighted average number of ordinary shares used in computing diluted net income (loss) per share (in shares)	105,026,945	104,884,583	104,627,789	104,186,120	103,884,288	103,731,147	103,484,866	102,633,545	110,604,714	108,643,814	107,647,802	108,100,623	104,660,476	103,433,274	108,877,648
Weighted anti-dilutive shares outstanding which were not included in the diluted calculation (in shares)													7,272,606	8,524,922	1,307,762
Basic net income (loss) per ordinary share (in usd per share)	$ (0.36)	$ (0.25)	$ (0.23)	$ (0.04)	$ (0.25)	$ (0.13)	$ (0.14)	$ (0.04)	$ 0.05	$ 0.09	$ 0.02	$ 0.04	$ (0.88)	$ (0.56)	$ 0.20
Diluted net income (loss) per ordinary share (in usd per share)	$ (0.36)	$ (0.25)	$ (0.23)	$ (0.04)	$ (0.25)	$ (0.13)	$ (0.14)	$ (0.04)	$ 0.04	$ 0.09	$ 0.02	$ 0.04	$ (0.88)	$ (0.56)	$ 0.18
Options
Potentially dilutive shares that were excluded from the computation of basic net income (loss) per share:
Share-based payment arrangements (in shares)													0	0	6,967,554
Restricted share units
Potentially dilutive shares that were excluded from the computation of basic net income (loss) per share:
Share-based payment arrangements (in shares)													0	0	945,612
ESPP
Potentially dilutive shares that were excluded from the computation of basic net income (loss) per share:
Share-based payment arrangements (in shares)													0	0	33,616