Revenues, net - Allowance for Credit 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
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Opening Balance	$ 844	$ 730	$ 573	$ 1,189	$ 1,189
Additions / (reductions)	9	(19)	752	(414)	(496)
Reductions due to write-off of Accounts Receivables	0	(41)	(472)	(114)	(129)
Translation adjustment	2	1	2	10	9
Closing Balance	$ 855	$ 671	$ 855	$ 671	$ 573