Goodwill and intangible assets - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Goodwill and intangible assets
Goodwill impairment loss	$ 0		$ 0
Goodwill	47,803		47,803
Amortization of Intangible Assets	$ 698	$ 698	$ 700

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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