Accumulated other comprehensive loss (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Accumulated other comprehensive loss
Current period accumulated other comprehensive loss	$ (796)	$ (527)	$ (3,440)	$ (1,383)
Cumulative translation adjustment
Accumulated other comprehensive loss
Beginning balance			441	2,434	$ 2,434
Current period accumulated other comprehensive loss			(3,440)		(1,993)
Ending Balance	(2,999)		(2,999)		441
Accumulated other comprehensive income (loss)
Accumulated other comprehensive loss
Beginning balance			441	2,434	2,434
Current period accumulated other comprehensive loss	(796)	$ (527)	(3,440)	$ (1,383)	(1,993)
Ending Balance	$ (2,999)		$ (2,999)		$ 441