Summary of significant accounting policies - Schedule of Allowance for Credit Losses for Trade Accounts Receivable (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	$ 445	$ 391
Provision	14	122
Write-offs	(55)	(27)
Recoveries of amounts previously written off	23	6
Balance, end of period	$ 427	$ 492